[components] remove zmodem (#7801)

7 files changed, 0 insertions, 2191 deletions

diff --git a/components/utilities/zmodem/crc.h b/components/utilities/zmodem/crc.h
deleted file mode 100644
index c5251a7aa1..0000000000
--- a/components/utilities/zmodem/crc.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- *  crc calculation stuff
- */
-
-/* crctab calculated by Mark G. Mendel, Network Systems Corporation */
-static unsigned short crctab[256] = {
-    0x0000,  0x1021,  0x2042,  0x3063,  0x4084,  0x50a5,  0x60c6,  0x70e7,
-    0x8108,  0x9129,  0xa14a,  0xb16b,  0xc18c,  0xd1ad,  0xe1ce,  0xf1ef,
-    0x1231,  0x0210,  0x3273,  0x2252,  0x52b5,  0x4294,  0x72f7,  0x62d6,
-    0x9339,  0x8318,  0xb37b,  0xa35a,  0xd3bd,  0xc39c,  0xf3ff,  0xe3de,
-    0x2462,  0x3443,  0x0420,  0x1401,  0x64e6,  0x74c7,  0x44a4,  0x5485,
-    0xa56a,  0xb54b,  0x8528,  0x9509,  0xe5ee,  0xf5cf,  0xc5ac,  0xd58d,
-    0x3653,  0x2672,  0x1611,  0x0630,  0x76d7,  0x66f6,  0x5695,  0x46b4,
-    0xb75b,  0xa77a,  0x9719,  0x8738,  0xf7df,  0xe7fe,  0xd79d,  0xc7bc,
-    0x48c4,  0x58e5,  0x6886,  0x78a7,  0x0840,  0x1861,  0x2802,  0x3823,
-    0xc9cc,  0xd9ed,  0xe98e,  0xf9af,  0x8948,  0x9969,  0xa90a,  0xb92b,
-    0x5af5,  0x4ad4,  0x7ab7,  0x6a96,  0x1a71,  0x0a50,  0x3a33,  0x2a12,
-    0xdbfd,  0xcbdc,  0xfbbf,  0xeb9e,  0x9b79,  0x8b58,  0xbb3b,  0xab1a,
-    0x6ca6,  0x7c87,  0x4ce4,  0x5cc5,  0x2c22,  0x3c03,  0x0c60,  0x1c41,
-    0xedae,  0xfd8f,  0xcdec,  0xddcd,  0xad2a,  0xbd0b,  0x8d68,  0x9d49,
-    0x7e97,  0x6eb6,  0x5ed5,  0x4ef4,  0x3e13,  0x2e32,  0x1e51,  0x0e70,
-    0xff9f,  0xefbe,  0xdfdd,  0xcffc,  0xbf1b,  0xaf3a,  0x9f59,  0x8f78,
-    0x9188,  0x81a9,  0xb1ca,  0xa1eb,  0xd10c,  0xc12d,  0xf14e,  0xe16f,
-    0x1080,  0x00a1,  0x30c2,  0x20e3,  0x5004,  0x4025,  0x7046,  0x6067,
-    0x83b9,  0x9398,  0xa3fb,  0xb3da,  0xc33d,  0xd31c,  0xe37f,  0xf35e,
-    0x02b1,  0x1290,  0x22f3,  0x32d2,  0x4235,  0x5214,  0x6277,  0x7256,
-    0xb5ea,  0xa5cb,  0x95a8,  0x8589,  0xf56e,  0xe54f,  0xd52c,  0xc50d,
-    0x34e2,  0x24c3,  0x14a0,  0x0481,  0x7466,  0x6447,  0x5424,  0x4405,
-    0xa7db,  0xb7fa,  0x8799,  0x97b8,  0xe75f,  0xf77e,  0xc71d,  0xd73c,
-    0x26d3,  0x36f2,  0x0691,  0x16b0,  0x6657,  0x7676,  0x4615,  0x5634,
-    0xd94c,  0xc96d,  0xf90e,  0xe92f,  0x99c8,  0x89e9,  0xb98a,  0xa9ab,
-    0x5844,  0x4865,  0x7806,  0x6827,  0x18c0,  0x08e1,  0x3882,  0x28a3,
-    0xcb7d,  0xdb5c,  0xeb3f,  0xfb1e,  0x8bf9,  0x9bd8,  0xabbb,  0xbb9a,
-    0x4a75,  0x5a54,  0x6a37,  0x7a16,  0x0af1,  0x1ad0,  0x2ab3,  0x3a92,
-    0xfd2e,  0xed0f,  0xdd6c,  0xcd4d,  0xbdaa,  0xad8b,  0x9de8,  0x8dc9,
-    0x7c26,  0x6c07,  0x5c64,  0x4c45,  0x3ca2,  0x2c83,  0x1ce0,  0x0cc1,
-    0xef1f,  0xff3e,  0xcf5d,  0xdf7c,  0xaf9b,  0xbfba,  0x8fd9,  0x9ff8,
-    0x6e17,  0x7e36,  0x4e55,  0x5e74,  0x2e93,  0x3eb2,  0x0ed1,  0x1ef0
-};
-
-/*
- * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell.
- *  NOTE: First srgument must be in range 0 to 255.
- *        Second argument is referenced twice.
- *
- * Programmers may incorporate any or all code into their programs,
- * giving proper credit within the source. Publication of the
- * source routines is permitted so long as proper credit is given
- * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg,
- * Omen Technology.
- */
-
-#define updcrc16(cp, crc) ( crctab[((crc >> 8) & 255)] ^ (crc << 8) ^ cp)
-
-/*
- * Copyright (C) 1986 Gary S. Brown.  You may use this program, or
- * code or tables extracted from it, as desired without restriction.
- */
-
-/* First, the polynomial itself and its table of feedback terms.  The  */
-/* polynomial is                                                       */
-/* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
-/* Note that we take it "backwards" and put the highest-order term in  */
-/* the lowest-order bit.  The X^32 term is "implied"; the LSB is the   */
-/* X^31 term, etc.  The X^0 term (usually shown as "+1") results in    */
-/* the MSB being 1.                                                    */
-
-/* Note that the usual hardware shift register implementation, which   */
-/* is what we're using (we're merely optimizing it by doing eight-bit  */
-/* chunks at a time) shifts bits into the lowest-order term.  In our   */
-/* implementation, that means shifting towards the right.  Why do we   */
-/* do it this way?  Because the calculated CRC must be transmitted in  */
-/* order from highest-order term to lowest-order term.  UARTs transmit */
-/* characters in order from LSB to MSB.  By storing the CRC this way,  */
-/* we hand it to the UART in the order low-byte to high-byte; the UART */
-/* sends each low-bit to hight-bit; and the result is transmission bit */
-/* by bit from highest- to lowest-order term without requiring any bit */
-/* shuffling on our part.  Reception works similarly.                  */
-
-/* The feedback terms table consists of 256, 32-bit entries.  Notes:   */
-/*                                                                     */
-/*     The table can be generated at runtime if desired; code to do so */
-/*     is shown later.  It might not be obvious, but the feedback      */
-/*     terms simply represent the results of eight shift/xor opera-    */
-/*     tions for all combinations of data and CRC register values.     */
-/*                                                                     */
-/*     The values must be right-shifted by eight bits by the "updcrc"  */
-/*     logic; the shift must be unsigned (bring in zeroes).  On some   */
-/*     hardware you could probably optimize the shift in assembler by  */
-/*     using byte-swap instructions.                                   */
-
-static unsigned long cr3tab[] = { /* CRC polynomial 0xedb88320 */
-0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
-0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
-0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
-0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
-0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
-0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
-0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
-0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
-0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
-0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
-0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
-0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
-0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
-0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
-0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
-0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
-0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
-0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
-0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
-0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
-0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
-0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
-0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
-0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
-0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
-0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
-0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
-0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
-0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
-0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
-0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
-0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
-};
-
-#define updcrc32(b, c) (cr3tab[((int)c ^ b) & 0xff] ^ ((c >> 8) & 0x00FFFFFF))
-
-/* End of crc.c */
diff --git a/components/utilities/zmodem/rz.c b/components/utilities/zmodem/rz.c
deleted file mode 100644
index d6250db3c8..0000000000
--- a/components/utilities/zmodem/rz.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
- * File      : rz.c
- * the implemention of receiving files from the remote computers
- * through the zmodem protocol.
- * Change Logs:
- * Date           Author       Notes
- * 2011-03-29     itspy
- * 2011-12-12     aozima       fixed syntax error.
- */
-
-#include <rtthread.h>
-#include <finsh.h>
-#include <shell.h>
-#include <rtdef.h>
-#include <dfs.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <stdio.h>
-#include "zdef.h"
-
-
-void zr_start(char *path);
-static rt_err_t zrec_init(rt_uint8_t *rxbuf, struct zfile *zf);
-static rt_err_t zrec_files(struct zfile *zf);
-static rt_err_t zwrite_file(rt_uint8_t *buf, rt_uint16_t size, struct zfile *zf);
-static rt_err_t zrec_file_data(rt_uint8_t *buf, struct zfile *zf);;
-static rt_err_t zrec_file(rt_uint8_t *rxbuf, struct zfile *zf);
-static rt_err_t zget_file_info(char *name, struct zfile *zf);
-static rt_err_t zwrite_file(rt_uint8_t *buf, rt_uint16_t size, struct zfile *zf);
-static void zrec_ack_bibi(void);
-
-
-/* start zmodem receive proccess */
-void zr_start(char *path)
-{
-    struct zfile *zf;
-    rt_uint8_t n;
-    char ch,*p,*q;
-    rt_err_t res = -RT_ERROR;
-
-    zf = rt_malloc(sizeof(struct zfile));
-    if (zf == RT_NULL)
-    {
-        rt_kprintf("zf: out of memory\r\n");
-        return;
-    }
-    rt_memset(zf, 0, sizeof(struct zfile));
-    zf->fname = path;
-    zf->fd = -1;
-    res = zrec_files(zf);
-    p = zf->fname;
-    for (;;)
-    {
-        q = strstr(p,"/");
-        if (q == RT_NULL)  break;
-        p = q+1;
-    }
-    if (res == RT_EOK)
-    {
-        rt_kprintf("\b\b\bfile: %s                           \r\n",p);
-        rt_kprintf("size: %ld bytes\r\n",zf->bytes_received);
-        rt_kprintf("receive completed.\r\n");
-        close(zf->fd);
-        rt_free(zf->fname);
-    }
-    else
-    {
-        rt_kprintf("\b\b\bfile: %s                           \r\n",p);
-        rt_kprintf("size: 0 bytes\r\n");
-        rt_kprintf("receive failed.\r\n");
-        if (zf->fd >= 0)
-        {
-            close(zf->fd);
-            unlink(zf->fname);    /* remove this file */
-            rt_free(zf->fname);
-        }
-    }
-    rt_free(zf);
-    /* waiting,clear console buffer */
-    rt_thread_delay(RT_TICK_PER_SECOND/2);
-    while(1)
-    {
-       n=rt_device_read(shell->device, 0, &ch, 1);
-       if (n == 0) break;
-    }
-
-    return ;
-}
-
-/* receiver init, wait for ack */
-static rt_err_t zrec_init(rt_uint8_t *rxbuf, struct zfile *zf)
-{
-    rt_uint8_t err_cnt = 0;
-    rt_err_t res = -RT_ERROR;
-
-    for (;;)
-    {
-        zput_pos(0L);
-        tx_header[ZF0] = ZF0_CMD;
-        tx_header[ZF1] = ZF1_CMD;
-        tx_header[ZF2] = ZF2_CMD;
-        zsend_hex_header(ZRINIT, tx_header);
-again:
-        res = zget_header(rx_header);
-        switch(res)
-        {
-        case ZFILE:
-             ZF0_CMD  = rx_header[ZF0];
-             ZF1_CMD  = rx_header[ZF1];
-             ZF2_CMD  = rx_header[ZF2];
-             ZF3_CMD  = rx_header[ZF3];
-             res = zget_data(rxbuf, RX_BUFFER_SIZE);
-             if (res == GOTCRCW)
-             {
-                 if ((res =zget_file_info((char*)rxbuf,zf))!= RT_EOK)
-                 {
-                     zsend_hex_header(ZSKIP, tx_header);
-                     return (res);
-                 }
-                 return RT_EOK;;
-             }
-             zsend_hex_header(ZNAK, tx_header);
-             goto again;
-        case ZSINIT:
-             if (zget_data((rt_uint8_t*)Attn, ZATTNLEN) == GOTCRCW)       /* send zack */
-             {
-                zsend_hex_header(ZACK, tx_header);
-                goto again;
-             }
-             zsend_hex_header(ZNAK, tx_header);          /* send znak */
-             goto again;
-        case ZRQINIT:
-             continue;
-        case ZEOF:
-             continue;
-        case ZCOMPL:
-             goto again;
-        case ZFIN:               /* end file session */
-             zrec_ack_bibi();
-             return res;
-         default:
-              if (++err_cnt >1000) return -RT_ERROR;
-              continue;
-        }
-    }
-}
-
-/* receive files */
-static rt_err_t zrec_files(struct zfile *zf)
-{
-    rt_uint8_t *rxbuf;
-    rt_err_t res = -RT_ERROR;
-
-    zinit_parameter();
-    rxbuf = rt_malloc(RX_BUFFER_SIZE*sizeof(rt_uint8_t));
-    if (rxbuf == RT_NULL)
-    {
-         rt_kprintf("rxbuf: out of memory\r\n");
-         return -RT_ERROR;
-    }
-    rt_kprintf("\r\nrz: ready...\r\n");    /* here ready to receive things */
-    if ((res = zrec_init(rxbuf,zf))!= RT_EOK)
-    {
-         rt_kprintf("\b\b\breceive init failed\r\n");
-         rt_free(rxbuf);
-         return -RT_ERROR;
-    }
-    res = zrec_file(rxbuf,zf);
-    if (res == ZFIN)
-    {
-        rt_free(rxbuf);
-        return RT_EOK;       /* if finish session */
-    }
-    else if (res == ZCAN)
-    {
-        rt_free(rxbuf);
-        return ZCAN;        /* cancel by sender */
-    }
-    else
-    {
-       zsend_can();
-       rt_free(rxbuf);
-       return res;
-    }
-}
-/* receive file */
-static rt_err_t zrec_file(rt_uint8_t *rxbuf, struct zfile *zf)
-{
-    rt_err_t res = -RT_ERROR;
-    rt_uint16_t err_cnt = 0;
-
-    do
-    {
-        zput_pos(zf->bytes_received);
-        zsend_hex_header(ZRPOS, tx_header);
-again:
-        res = zget_header(rx_header);
-        switch (res)
-        {
-        case ZDATA:
-             zget_pos(Rxpos);
-             if (Rxpos != zf->bytes_received)
-             {
-                 zsend_break(Attn);
-                 continue;
-             }
-             err_cnt = 0;
-             res = zrec_file_data(rxbuf,zf);
-             if (res == -RT_ERROR)
-             {
-                 zsend_break(Attn);
-                 continue;
-             }
-             else if (res == GOTCAN) return res;
-             else goto again;
-        case ZRPOS:
-             zget_pos(Rxpos);
-             continue;
-        case ZEOF:
-             err_cnt = 0;
-             zget_pos(Rxpos);
-             if (Rxpos != zf->bytes_received  || Rxpos != zf->bytes_total)
-             {
-                 continue;
-             }
-             return (zrec_init(rxbuf,zf));    /* resend ZRINIT packet,ready to receive next file */
-        case ZFIN:
-             zrec_ack_bibi();
-             return ZCOMPL;
-        case ZCAN:
-#ifdef ZDEBUG
-             rt_kprintf("error code: sender cancelled \r\n");
-#endif
-             zf->bytes_received = 0L;        /* throw the received data */
-             return res;
-        case ZSKIP:
-             return res;
-        case -RT_ERROR:
-             zsend_break(Attn);
-             continue;
-        case ZNAK:
-        case TIMEOUT:
-        default:
-            continue;
-        }
-    } while(++err_cnt < 100);
-
-    return res;
-}
-
-/* proccess file infomation */
-static rt_err_t zget_file_info(char *name, struct zfile *zf)
-{
-    char *p;
-    char *full_path,*ptr;
-    rt_uint16_t i,len;
-    rt_err_t res  = -RT_ERROR;
-    struct statfs buf;
-    struct stat finfo;
-
-    if (zf->fname == RT_NULL)              /* extract file path  */
-    {
-        len = strlen(name)+2;
-    }
-    else
-        len = strlen(zf->fname)+strlen(name)+2;
-    full_path = rt_malloc(len);
-    if (full_path == RT_NULL)
-    {
-        zsend_can();
-        rt_kprintf("\b\b\bfull_path: out of memory\n");
-        rt_free(full_path);
-        return -RT_ERROR;
-    }
-    rt_memset(full_path,0,len);
-
-    for (i=0,ptr=zf->fname;i<len-strlen(name)-2;i++)
-         full_path[i] = *ptr++;
-    full_path[len-strlen(name)-2] = '/';
-    /* check if is a directory */
-    if ((zf->fd=open(full_path, DFS_O_DIRECTORY,0)) < 0)
-    {
-        zsend_can();
-        rt_kprintf("\b\b\bcan not open file:%s\r\n",zf->fname+1);
-        close(zf->fd);
-        zf->fd = -1;
-        rt_free(full_path);
-        return res;
-    }
-    fstat(zf->fd, &finfo);
-    if ((finfo.st_mode&S_IFDIR) != S_IFDIR)
-    {
-        close(zf->fd);
-        zf->fd = -1;
-        return res;
-    }
-    close(zf->fd);
-    /* get fullpath && file attributes */
-    strcat(full_path,name);
-    zf->fname = full_path;
-    p = strlen(name)+name+1;
-    sscanf((const char *)p, "%ld%lo%o", &zf->bytes_total,&zf->ctime,&zf->mode);
-#if defined(RT_USING_DFS) && defined(DFS_USING_WORKDIR)
-    dfs_statfs(working_directory,&buf);
-    if (zf->bytes_total > (buf.f_blocks * buf.f_bfree))
-    {
-        zsend_can();
-        rt_kprintf("\b\b\bnot enough disk space\r\n");
-        zf->fd = -1;
-        rt_free(full_path);
-        return -RT_ERROR;
-    }
-#else
-    buf = buf;
-#endif
-    zf->bytes_received   = 0L;
-    if ((zf->fd = open(zf->fname,DFS_O_CREAT|DFS_O_WRONLY,0)) < 0)   /* create or replace exist file */
-    {
-        zsend_can();
-        rt_kprintf("\b\b\bcan not create file:%s \r\n",zf->fname);
-        return -RT_ERROR;
-    }
-
-    return RT_EOK;
-}
-
-/* receive file data,continously, no ack */
-static rt_err_t zrec_file_data(rt_uint8_t *buf, struct zfile *zf)
-{
-    rt_err_t res = -RT_ERROR;
-
-more_data:
-    res = zget_data(buf,RX_BUFFER_SIZE);
-    switch(res)
-    {
-    case GOTCRCW:                          /* zack received */
-         zwrite_file(buf,Rxcount,zf);
-         zf->bytes_received += Rxcount;
-         zput_pos(zf->bytes_received);
-         zsend_line(XON);
-         zsend_hex_header(ZACK, tx_header);
-         return RT_EOK;
-    case GOTCRCQ:
-         zwrite_file(buf,Rxcount,zf);
-         zf->bytes_received += Rxcount;
-         zput_pos(zf->bytes_received);
-         zsend_hex_header(ZACK, tx_header);
-         goto more_data;
-    case GOTCRCG:
-         zwrite_file(buf,Rxcount,zf);
-         zf->bytes_received += Rxcount;
-         goto more_data;
-    case GOTCRCE:
-         zwrite_file(buf,Rxcount,zf);
-         zf->bytes_received += Rxcount;
-         return RT_EOK;
-    case GOTCAN:
-#ifdef ZDEBUG
-         rt_kprintf("error code : ZCAN \r\n");
-#endif
-         return res;
-    case TIMEOUT:
-         return res;
-    case -RT_ERROR:
-         zsend_break(Attn);
-         return res;
-    default:
-         return res;
-    }
-}
-
-/* write file */
-static rt_err_t zwrite_file(rt_uint8_t *buf,rt_uint16_t size, struct zfile *zf)
-{
-    return (write(zf->fd,buf,size));
-}
-
-/* ack bibi */
-static void zrec_ack_bibi(void)
-{
-    rt_uint8_t i;
-
-    zput_pos(0L);
-    for (i=0;i<3;i++)
-    {
-        zsend_hex_header(ZFIN, tx_header);
-        switch (zread_line(100))
-        {
-        case 'O':
-             zread_line(1);
-             return;
-        case RCDO:
-             return;
-        case TIMEOUT:
-        default:
-             break;
-        }
-    }
-}
-
-/* end of rz.c */
diff --git a/components/utilities/zmodem/sz.c b/components/utilities/zmodem/sz.c
deleted file mode 100644
index 504faaa39f..0000000000
--- a/components/utilities/zmodem/sz.c
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
- * File      : sz.c
- * the implemention of sending files to the remote computers
- * through the zmodem protocol.
- * Change Logs:
- * Date           Author       Notes
- * 2011-03-29     itspy
- */
-
-#include <rtthread.h>
-#include <finsh.h>
-#include <shell.h>
-#include <rtdef.h>
-#include <dfs.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include "zdef.h"
-
-
-static rt_uint8_t TX_BUFFER[TX_BUFFER_SIZE];         /* sender buffer */
-static rt_uint8_t file_cnt = 0;                      /* count of number of files opened */
-static rt_uint8_t Rxflags  = 0;                      /* rx parameter flags */
-static rt_uint8_t ZF2_OP;                            /* file transfer option */
-
-void zs_start(char *path);
-static void zsend_init(void);
-static rt_err_t zsend_files(struct zfile *zf);
-static rt_err_t zsend_file(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t len);
-static rt_err_t zsend_file_data(struct zfile *zf);
-static rt_uint16_t zfill_buffer(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t size);
-static rt_err_t zget_sync(void);
-static void zsay_bibi(void);
-
-
-
-
-/* start zmodem send process */
-void zs_start(char *path)
-{
-    struct zfile *zf;
-    rt_err_t res = -RT_ERROR;
-    char *p,*q;
-    zf = rt_malloc(sizeof(struct zfile));
-    if (zf == RT_NULL)
-    {
-        rt_kprintf("zf: out of memory\r\n");
-        return;
-    }
-    rt_kprintf("\r\nsz: ready...\r\n");    /* here ready to send things */
-    rt_memset(zf, 0, sizeof(struct zfile));
-    zf->fname = path;
-    zf->fd = -1;
-    res = zsend_files(zf);
-    p = zf->fname;
-    for (;;)
-    {
-        q = strstr(p,"/");
-        if (q == RT_NULL)  break;
-        p = q+1;
-    }
-    if (res == RT_EOK)
-    {
-        rt_kprintf("\r\nfile: %s \r\nsize: %ld bytes\r\nsend completed.\r\n",
-                  p,zf->bytes_received);
-    }
-    else
-    {
-        rt_kprintf("\r\nfile: %s \r\nsize: 0 bytes\r\nsend failed.\r\n",p);
-    }
-    rt_free(zf);
-
-    return;
-}
-
-/* init the parameters */
-static void zsend_init(void)
-{
-    rt_err_t res = -RT_ERROR;
-
-    zinit_parameter();
-    for(;;)          /* wait ZPAD */
-    {
-        res = zread_line(800);
-        if (res == ZPAD) break;
-    }
-    for (;;)
-    {
-        res = zget_header(rx_header);
-        if (res == ZRINIT) break;
-    }
-    if ((rx_header[ZF1] & ZRQNVH))
-    {
-        zput_pos(0x80L);    /* Show we can var header */
-        zsend_hex_header(ZRQINIT, tx_header);
-    }
-    Rxflags = rx_header[ZF0] & 0377;
-    if (Rxflags & CANFC32) Txfcs32 = 1;    /* used 32bits CRC check */
-
-    if (ZF2_OP == ZTRLE && (Rxflags & CANRLE))    /* for RLE packet */
-         Txfcs32 = 2;
-    else
-        ZF2_OP = 0;
-    /* send SINIT cmd */
-    return;
-}
-
-/* send files */
-static rt_err_t zsend_files(struct zfile *zf)
-{
-    char *p,*q;
-    char *str = "/";
-    struct stat finfo;
-    rt_err_t res = -RT_ERROR;
-
-    if (zf->fname == RT_NULL)
-    {
-        rt_kprintf("\r\nerror: no file to be send.\r\n");
-        return res;
-    }
-    if ((zf->fd=open(zf->fname, DFS_O_RDONLY,0)) <0)
-    {
-        rt_kprintf("\r\ncan not open file:%s\r\n",zf->fname+1);
-        return res;
-    }
-
-    zf->file_end = 0;
-    ++file_cnt;
-    /* extract file name */
-    p = zf->fname;
-    for (;;)
-    {
-        q = strstr(p,str);
-        if (q == RT_NULL)  break;
-        p = q+1;
-    }
-    q = (char*)TX_BUFFER;
-    for (;;)
-    {
-        *q++ = *p++;
-        if (*p == 0) break;
-    }
-    *q++ = 0;
-    p=q;
-    while (q < (char*)(TX_BUFFER + 1024))
-        *q++ = 0;
-    /* get file attributes */
-    fstat(zf->fd,&finfo);
-    Left_sizes += finfo.st_size;
-    rt_sprintf(p, "%lu %lo %o 3 %d %ld", (long)finfo.st_size, finfo.st_mtime,
-              finfo.st_mode, file_cnt, Left_sizes);
-    Left_sizes -= finfo.st_size;
-    TX_BUFFER[127] = (finfo.st_size + 127) >>7;
-    TX_BUFFER[126] = (finfo.st_size + 127) >>15;
-
-    zsend_init();
-    /* start sending files */
-    res = zsend_file(zf,TX_BUFFER, (p-(char*)TX_BUFFER)+strlen(p)+1);
-    zsay_bibi();
-    close(zf->fd);
-
-    return res;
-}
-
-/* send file name and related info */
-static rt_err_t zsend_file(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t len)
-{
-    rt_uint8_t cnt;
-    rt_err_t res = -RT_ERROR;
-
-    for (cnt=0;cnt<5;cnt++)
-    {
-        tx_header[ZF0] = ZF0_CMD;               /* file conversion option */
-        tx_header[ZF1] = ZF1_CMD;               /* file management option */
-        tx_header[ZF2] = (ZF3_CMD|ZF2_OP);      /* file transfer option   */
-        tx_header[ZF3] = ZF3_CMD;
-        zsend_bin_header(ZFILE, tx_header);
-        zsend_bin_data(buf, len, ZCRCW);
-loop:
-        res = zget_header(rx_header);
-        switch (res)
-        {
-        case ZRINIT:
-             while ((res = zread_line(50)) > 0)
-             {
-                 if (res == ZPAD)
-                 {
-                    goto loop;
-                 }
-             }
-             break;
-        case ZCAN:
-        case TIMEOUT:
-        case ZABORT:
-        case ZFIN:
-             break;
-        case -RT_ERROR:
-        case ZNAK:
-             break;
-        case ZCRC:                           /* no CRC request */
-             goto loop;
-        case ZFERR:
-        case ZSKIP:
-             break;
-        case ZRPOS:                          /* here we want */
-             zget_pos(Rxpos);
-             Txpos = Rxpos;
-             return(zsend_file_data(zf));
-        default:
-             break;
-        }
-    }
-
-    return res;
-}
-
-/* send the file data */
-static rt_err_t zsend_file_data(struct zfile *zf)
-{
-    rt_int16_t cnt;
-    rt_uint8_t cmd;
-    rt_err_t res = -RT_ERROR;
-    /* send ZDATA packet, start to send data */
-start_send:
-    zput_pos(Txpos);
-    zsend_bin_header(ZDATA, tx_header);
-    do
-    {
-        cnt = zfill_buffer(zf,TX_BUFFER,RX_BUFFER_SIZE);
-        if (cnt < RX_BUFFER_SIZE )
-            cmd = ZCRCE;
-        else
-            cmd = ZCRCG;
-        zsend_bin_data(TX_BUFFER, cnt, cmd);
-        zf->bytes_received= Txpos += cnt;
-        if (cmd == ZCRCW)
-            goto get_syn1;
-    } while (cnt == RX_BUFFER_SIZE);
-    for (;;)                         /*  get ack and check if send finish */
-    {
-        zput_pos(Txpos);
-        zsend_bin_header(ZEOF, tx_header);
-get_syn1:
-        res = zget_sync();
-        switch (res)
-        {
-        case ZACK:
-             goto get_syn1;
-        case ZNAK:
-             continue;
-        case ZRPOS:                     /* resend here */
-             lseek(zf->fd,Txpos,0);
-             goto start_send;
-        case ZRINIT:                   /*  send finish,then begin to send next file */
-             return RT_EOK;
-        case ZSKIP:
-        case -RT_ERROR:
-             return res;
-        default:
-             return res;
-        }
-    }
-}
-
-/* fill file data to buffer*/
-static rt_uint16_t zfill_buffer(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t size)
-{
-    return (read(zf->fd,buf,size));
-}
-
-/* wait sync(ack) from the receiver */
-static rt_err_t zget_sync(void)
-{
-    rt_err_t res = -RT_ERROR;
-
-    for (;;)
-    {
-        res = zget_header(rx_header);
-        switch (res)
-        {
-        case ZCAN:
-        case ZABORT:
-        case ZFIN:
-        case TIMEOUT:
-             return -RT_ERROR;
-        case ZRPOS:                  /* get pos, need to resend */
-             zget_pos(Rxpos);
-             Txpos = Rxpos;
-             return res;
-        case ZACK:
-             return res;
-        case ZRINIT:                 /* get ZRINIT indicate that the prev file send completed */
-             return res;
-        case ZSKIP:
-             return res;
-        case -RT_ERROR:
-        default:
-             zsend_bin_header(ZNAK, tx_header);
-             continue;
-        }
-    }
-}
-
-/* say "bibi" to the receiver */
-static void zsay_bibi(void)
-{
-    for (;;)
-    {
-        zput_pos(0L);                         /* reninit position of next file*/
-        zsend_hex_header(ZFIN, tx_header);    /* send finished session cmd */
-        switch (zget_header(rx_header))
-        {
-        case ZFIN:
-            zsend_line('O');
-            zsend_line('O');
-        case ZCAN:
-        case TIMEOUT:
-            return;
-        }
-    }
-}
-/* end of sz.c */
diff --git a/components/utilities/zmodem/zcore.c b/components/utilities/zmodem/zcore.c
deleted file mode 100644
index 45a4e7996b..0000000000
--- a/components/utilities/zmodem/zcore.c
+++ /dev/null
@@ -1,886 +0,0 @@
-/*
- * File      : rz.c
- * the core functions of implementing zmodem protocol
- * Change Logs:
- * Date           Author       Notes
- * 2011-03-29     itspy
- */
-
-#include <rtthread.h>
-#include <finsh.h>
-#include <shell.h>
-#include <rtdef.h>
-#include <dfs.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <stdio.h>
-#include "zdef.h"
-
-char ZF0_CMD;                    /* file conversion request */
-char ZF1_CMD;                    /* file management request */
-char ZF2_CMD;                    /* file transport request */
-char ZF3_CMD;
-rt_uint8_t   Rxframeind;         /* ZBIN ZBIN32, or ZHEX type of frame */
-rt_uint16_t  Rxcount;            /* received count*/
-char header_type;                /* header type */
-rt_uint8_t   rx_header[4];       /* received header */
-rt_uint8_t   tx_header[4];       /* transmitted header */
-rt_uint32_t  Rxpos;              /* received file position */
-rt_uint32_t  Txpos;              /* transmitted file position */
-rt_uint8_t   Txfcs32;            /* TURE means send binary frames with 32 bit FCS */
-rt_uint8_t   TxCRC;              /* controls 32 bit CRC being sent */
-rt_uint8_t   RxCRC;              /* indicates/controls 32 bit CRC being received */
-                                 /* 0 == CRC16,  1 == CRC32,  2 == CRC32 + RLE */
-char Attn[ZATTNLEN+1];           /* attention string rx sends to tx on err */
-
-void zinit_parameter(void);
-void zsend_bin_header(rt_uint8_t type, rt_uint8_t *hdr);
-void zsend_hex_header(rt_uint8_t type, rt_uint8_t *hdr);
-void zsend_bin_data(rt_uint8_t *buf, rt_int16_t len, rt_uint8_t frameend);
-static rt_int16_t zrec_data16(rt_uint8_t *buf, rt_uint16_t len);
-static rt_int16_t zrec_data32(rt_uint8_t *buf, rt_int16_t len);
-static rt_int16_t zrec_data32r(rt_uint8_t *buf, rt_int16_t len);
-rt_int16_t zget_data(rt_uint8_t *buf, rt_uint16_t len);
-rt_int16_t zget_header(rt_uint8_t *hdr);
-static rt_int16_t zget_bin_header(rt_uint8_t *hdr);
-static rt_int16_t zget_bin_fcs(rt_uint8_t *hdr);
-rt_int16_t zget_hex_header(rt_uint8_t *hdr);
-static void zsend_ascii(rt_uint8_t c);
-void zsend_zdle_char(rt_uint16_t ch);
-static rt_int16_t zget_hex(void);
-rt_int16_t zread_byte(void);
-rt_int16_t zxor_read(void);
-void zput_pos(rt_uint32_t pos);
-void zget_pos(rt_uint32_t pos);
-
-
-
-
-void zinit_parameter(void)
-{
-    rt_uint8_t i;
-
-    ZF0_CMD  = CANFC32|CANFDX|CANOVIO;      /*  not chose CANFC32,CANRLE,although it have been supported */
-    ZF1_CMD  = 0;                               /* fix header length,not support CANVHDR */
-    ZF2_CMD  = 0;
-    ZF3_CMD  = 0;
-    Rxframeind =0;
-    header_type   = 0;
-    Rxcount  = 0;
-    for (i=0;i<4;i++) rx_header[i] = tx_header[i] = 0;
-    Rxpos    = Txpos = 0;
-    RxCRC    = 0;
-    Txfcs32  = 0;
-
-    return ;
-}
-
-/* send binary header */
-void zsend_bin_header(rt_uint8_t type, rt_uint8_t *hdr)
-{
-    rt_uint8_t i;
-    rt_uint32_t crc;
-
-    zsend_byte(ZPAD);
-    zsend_byte(ZDLE);
-    TxCRC = Txfcs32;
-    if (TxCRC == 0)
-    {
-        zsend_byte(ZBIN);
-        zsend_zdle_char(type);
-        /* add 16bits crc */
-        crc = 0L;
-        crc = updcrc16(type, 0);
-        for (i=0;i<4;i++)
-        {
-            zsend_zdle_char(*hdr);
-            crc = updcrc16((0377 & *hdr++),crc);
-        }
-        crc = updcrc16(0,updcrc16(0,crc));
-        zsend_zdle_char(((int)(crc>>8)));
-        zsend_zdle_char(crc);
-    }
-    else if(TxCRC == 1)
-    {
-        zsend_byte(ZBIN32);
-        zsend_zdle_char(type);
-        /* add 32bits crc */
-        crc = 0xffffffffL;
-        crc = updcrc32(type, crc);
-        for (i=0;i<4;i++)
-        {
-            zsend_zdle_char(*hdr);
-            crc = updcrc32((0377 & *hdr++), crc);
-        }
-        crc = ~crc;
-        for (i=0; i<4;i++)
-        {
-            zsend_zdle_char(crc);
-            crc >>= 8;
-        }
-    }
-    else if (TxCRC == 2)
-    {
-        zsend_byte(ZBINR32);
-        zsend_zdle_char(type);
-        /* add 32bits crc */
-        crc = 0xffffffffL;
-        crc = updcrc32(type, crc);
-        for (i=0;i<4;i++)
-        {
-            zsend_zdle_char(*hdr);
-            crc = updcrc32((0377 & *hdr++), crc);
-        }
-        crc = ~crc;
-        for (i=0; i<4;i++)
-        {
-            zsend_zdle_char(crc);
-            crc >>= 8;
-        }
-    }
-
-    return;
-}
-
-/* send hex header */
-void zsend_hex_header(rt_uint8_t type, rt_uint8_t *hdr)
-{
-    rt_uint8_t i;
-    rt_uint16_t crc;
-
-    zsend_line(ZPAD); zsend_line(ZPAD); zsend_line(ZDLE);
-    zsend_line(ZHEX);
-    zsend_ascii(type);
-    crc = updcrc16(type, 0);
-    for (i=0; i<4; i++)
-    {
-        zsend_ascii(*hdr);
-        crc = updcrc16((0377 & *hdr++), crc);
-    }
-    crc = updcrc16(0,updcrc16(0,crc));
-    zsend_ascii(crc>>8);
-    zsend_ascii(crc);
-    /* send display control cmd */
-    zsend_line(015); zsend_line(0212);
-    if (type != ZFIN && type != ZACK)
-        zsend_line(021);
-    TxCRC = 0;               /* clear tx crc type */
-
-    return;
-}
-
-/* send binary data,with frameend */
-void zsend_bin_data(rt_uint8_t *buf, rt_int16_t len, rt_uint8_t frameend)
-{
-    rt_int16_t i,c,tmp;
-    rt_uint32_t crc;
-
-    if (TxCRC == 0)         /* send binary data with 16bits crc check */
-    {
-        crc = 0x0L;
-        for (i=0;i<len;i++)
-        {
-            zsend_zdle_char(*buf);
-            crc = updcrc16((0377 & *buf++), crc);
-        }
-        zsend_byte(ZDLE); zsend_byte(frameend);
-        crc = updcrc16(frameend, crc);
-        crc = updcrc16(0,updcrc16(0,crc));
-        zsend_zdle_char(crc>>8);
-        zsend_zdle_char(crc);
-    }
-    else if (TxCRC == 1)   /* send binary data with 32 bits crc check */
-    {
-        crc = 0xffffffffL;
-        for (i=0;i<len;i++)
-        {
-            c = *buf++ & 0377;
-            zsend_zdle_char(c);
-            crc = updcrc32(c, crc);
-        }
-        zsend_byte(ZDLE); zsend_byte(frameend);
-        crc = updcrc32(frameend, crc);
-        crc = ~crc;
-        for (i=0;i<4;i++)
-        {
-            zsend_zdle_char((int)crc);  crc >>= 8;
-        }
-    }
-    else if (TxCRC == 2)   /* send binary data with 32bits crc check,RLE encode */
-    {
-        crc = 0xffffffffL;
-        tmp = *buf++ & 0377;
-        for (i = 0; --len >= 0; ++buf)
-        {
-           if ((c = *buf & 0377) == tmp && i < 126 && len>0)
-           {
-              ++i;  continue;
-           }
-           if (i==0)
-           {
-               zsend_zdle_char(tmp);
-               crc = updcrc32(tmp, crc);
-               if (tmp == ZRESC)
-               {
-                   zsend_zdle_char(0100); crc = updcrc32(0100, crc);
-               }
-               tmp = c;
-           }
-           else if (i == 1)
-           {
-                if (tmp != ZRESC)
-                {
-                    zsend_zdle_char(tmp); zsend_zdle_char(tmp);
-                    crc = updcrc32(tmp, crc);
-                    crc = updcrc32(tmp, crc);
-                    i = 0; tmp = c;
-                }
-
-           }
-           else
-           {
-                zsend_zdle_char(ZRESC); crc = updcrc32(ZRESC, crc);
-                if (tmp == 040 && i < 34)
-                {
-                    i += 036;
-                    zsend_zdle_char(i);
-                    crc = updcrc32(i, crc);
-                }
-                else
-                {
-                    i += 0101;
-                    zsend_zdle_char(i); crc = updcrc32(i, crc);
-                    zsend_zdle_char(tmp); crc = updcrc32(tmp, crc);
-                }
-                i = 0; tmp = c;
-           }
-       }
-       zsend_byte(ZDLE); zsend_byte(frameend);
-       crc = updcrc32(frameend, crc);
-       crc = ~crc;
-       for (i=0;i<4;i++)
-       {
-           zsend_zdle_char(crc);
-           crc >>= 8;
-       }
-    }
-    if (frameend == ZCRCW)
-        zsend_byte(XON);
-
-    return;
-}
-
-/* receive data,with 16bits CRC check */
-static rt_int16_t zrec_data16(rt_uint8_t *buf, rt_uint16_t len)
-{
-    rt_int16_t c,crc_cnt;
-    rt_uint16_t crc;
-    rt_err_t res = -RT_ERROR;
-    rt_uint8_t *p,flag = 0;
-
-    p = buf;
-    crc_cnt = 0;  crc = 0L;
-    Rxcount = 0;
-    while(buf <= p+len)
-    {
-        if ((res = zread_byte()) & ~0377)
-        {
-            if (res == GOTCRCE || res == GOTCRCG ||
-                res == GOTCRCQ || res == GOTCRCW)
-            {
-                  c = res;
-                  c = res;
-                  crc = updcrc16(res&0377, crc);
-                  flag = 1;
-                  continue;
-            }
-            else if (res == GOTCAN)  return ZCAN;
-            else if (res == TIMEOUT) return TIMEOUT;
-            else return res;
-
-        }
-        else
-        {
-           if (flag)
-           {
-               crc = updcrc16(res, crc);
-               crc_cnt++;
-               if (crc_cnt < 2) continue;
-               if ((crc & 0xffff))
-               {
-#ifdef ZDEBUG
-                     rt_kprintf("error code: CRC16 error \r\n");
-#endif
-                     return -RT_ERROR;
-               }
-               return c;
-           }
-           else
-           {
-              *buf++ = res;
-              Rxcount++;
-              crc = updcrc16(res, crc);
-           }
-        }
-    }
-
-    return -RT_ERROR;
-}
-
-/* receive data,with 32bits CRC check */
-static rt_int16_t zrec_data32(rt_uint8_t *buf, rt_int16_t len)
-{
-    rt_int16_t c,crc_cnt;
-    rt_uint32_t crc;
-    rt_err_t res = -RT_ERROR;
-    rt_uint8_t *p,flag = 0;
-    p = buf;
-    crc_cnt = 0;   crc = 0xffffffffL;
-    Rxcount = 0;
-    while (buf <= p+len)
-    {
-        if ((res = zread_byte()) & ~0377)
-        {
-            if (res == GOTCRCE || res == GOTCRCG ||
-                res == GOTCRCQ || res == GOTCRCW)
-            {
-                  c = res;
-                  crc = updcrc32(res&0377, crc);
-                  flag = 1;
-                  continue;
-            }
-            else if (res == GOTCAN)  return ZCAN;
-            else if (res == TIMEOUT) return TIMEOUT;
-            else return res;
-
-        }
-        else
-        {
-           if (flag)
-           {
-               crc = updcrc32(res, crc);
-               crc_cnt++;
-               if (crc_cnt < 4) continue;
-               if ((crc & 0xDEBB20E3))
-               {
-#ifdef ZDEBUG
-                     rt_kprintf("error code: CRC32 error \r\n");
-#endif
-                     return -RT_ERROR;
-               }
-               return c;
-           }
-           else
-           {
-              *buf++ = res;
-              Rxcount++;
-              crc = updcrc32(res, crc);
-           }
-        }
-    }
-
-    return -RT_ERROR;
-}
-/* receive data,with RLE encoded,32bits CRC check */
-static rt_int16_t zrec_data32r(rt_uint8_t *buf, rt_int16_t len)
-{
-    rt_int16_t c,crc_cnt;
-    rt_uint32_t crc;
-    rt_err_t res = -RT_ERROR;
-    rt_uint8_t *p,flag = 0;
-
-    crc_cnt = 0; crc = 0xffffffffL;
-    Rxcount = 0;
-    p = buf;
-    while (buf <= p+len)
-    {
-        if ((res = zread_byte()) & ~0377)
-        {
-            if (res == GOTCRCE || res == GOTCRCG ||
-                res == GOTCRCQ || res == GOTCRCW)
-            {
-                  c = res;
-                  crc = updcrc32(res&0377, crc);
-                  flag = 1;
-                  continue;
-            }
-            else if (res == GOTCAN)  return ZCAN;
-            else if (res == TIMEOUT) return TIMEOUT;
-            else return res;
-
-        }
-        else
-        {
-           if (flag)
-           {
-               crc = updcrc32(res, crc);
-               crc_cnt++;
-               if (crc_cnt < 4) continue;
-               if ((crc & 0xDEBB20E3))
-               {
-#ifdef ZDEBUG
-                     rt_kprintf("error code: CRC32 error \r\n");
-#endif
-                     return -RT_ERROR;
-               }
-               return c;
-           }
-           else
-           {
-               crc = updcrc32(res, crc);
-               switch (c)
-               {
-               case 0:
-                    if (res == ZRESC)
-                    {
-                        c = -1;  continue;
-                    }
-                    *buf++ = res;
-                    Rxcount++;
-                    continue;
-               case -1:
-                    if (res >= 040 && res < 0100)
-                    {
-                        c = res - 035; res = 040;
-                        goto spaces;
-                    }
-                    if (res == 0100)
-                    {
-                        c = 0;
-                        *buf++ = ZRESC;
-                        Rxcount++;
-                        continue;
-                    }
-                    c = res;  continue;
-               default:
-                    c -= 0100;
-                    if (c < 1)
-                        goto end;
-spaces:
-                    if ((buf + c) > p+len)
-                        goto end;
-                    while ( --res >= 0)
-                    {
-                        *buf++ = res;
-                        Rxcount++;
-                    }
-                    c = 0;  continue;
-                }
-           }
-        }   // if -else
-
-    }
-end:
-    return -RT_ERROR;
-}
-rt_int16_t zget_data(rt_uint8_t *buf, rt_uint16_t len)
-{
-    rt_int16_t res = -RT_ERROR;
-
-    if (RxCRC == 0)
-    {
-         res = zrec_data16(buf,len);
-    }
-    else if (RxCRC == 1)
-    {
-        res = zrec_data32(buf, len);
-    }
-    else if (RxCRC == 2)
-    {
-        res = zrec_data32r(buf, len);
-    }
-
-    return res;
-}
-/* get type and cmd of header, fix lenght */
-rt_int16_t zget_header(rt_uint8_t *hdr)
-{
-    rt_int16_t c,prev_char;
-    rt_uint32_t bit;
-    rt_uint16_t get_can,step_out;
-
-    bit = get_device_baud();                 /* get console baud rate */
-    Rxframeind = header_type = 0;
-    step_out = 0;
-    prev_char = 0xff;
-    for (;;)
-    {
-        c = zread_line(100);
-        switch(c)
-        {
-        case 021:
-        case 0221:
-             if (prev_char == CAN)   break;
-             if (prev_char == ZCRCW)  goto start_again;
-             break;
-        case RCDO:
-             goto end;
-        case TIMEOUT:
-             if (prev_char == CAN) break;
-             if (prev_char == ZCRCW)
-             {
-                 c = -RT_ERROR; goto end;
-             }
-             goto end;
-        case ZCRCW:
-             if (prev_char == CAN) goto start_again;
-             break;
-        case CAN:
-get_can:
-             if (++get_can > 5)
-             {
-                 c = ZCAN; goto end;
-             }
-             break;
-        case ZPAD:
-             if (prev_char == CAN)   break;
-             if (prev_char == ZCRCW) goto start_again;
-             step_out = 1;
-             break;
-        default:
-             if (prev_char == CAN)   break;
-             if (prev_char == ZCRCW) goto start_again;
-start_again:
-             if (--bit == 0)
-             {
-                 c = GCOUNT; goto end;
-             }
-             get_can = 0;
-             break;
-        }
-        prev_char = c;
-        if (step_out) break;    /* exit loop */
-    }
-    step_out = get_can = 0;
-    for (;;)
-    {
-        c = zxor_read();
-        switch(c)
-        {
-        case ZPAD:
-             break;
-        case RCDO:
-        case TIMEOUT:
-             goto end;
-        case ZDLE:
-             step_out = 1;
-             break;
-        default:
-             goto start_again;
-        }
-        if (step_out) break;
-    }
-
-    Rxframeind = c = zxor_read();
-    switch (c)
-    {
-    case ZBIN32:
-         RxCRC = 1;  c = zget_bin_fcs(hdr); break;
-    case ZBINR32:
-         RxCRC = 2;  c = zget_bin_fcs(hdr); break;
-    case ZBIN:
-         RxCRC = 0;  c = zget_bin_header(hdr); break;
-    case ZHEX:
-         RxCRC = 0;  c = zget_hex_header(hdr); break;
-    case CAN:
-        goto get_can;
-    case RCDO:
-    case TIMEOUT:
-        goto end;
-    default:
-        goto start_again;
-    }
-end:
-    return c;
-}
-
-/* receive a binary header */
-static rt_int16_t zget_bin_header(rt_uint8_t *hdr)
-{
-    rt_int16_t res, i;
-    rt_uint16_t crc;
-
-    if ((res = zread_byte()) & ~0377)
-        return res;
-    header_type = res;
-    crc = updcrc16(res, 0);
-
-    for (i=0;i<4;i++)
-    {
-        if ((res = zread_byte()) & ~0377)
-            return res;
-        crc = updcrc16(res, crc);
-        *hdr++ = res;
-    }
-    if ((res = zread_byte()) & ~0377)
-        return res;
-    crc = updcrc16(res, crc);
-    if ((res = zread_byte()) & ~0377)
-        return res;
-    crc = updcrc16(res, crc);
-    if (crc & 0xFFFF)
-    {
-        rt_kprintf("CRC error\n");
-        return -RT_ERROR;
-    }
-
-    return header_type;
-}
-
-/* receive a binary header,with 32bits FCS */
-static rt_int16_t zget_bin_fcs(rt_uint8_t *hdr)
-{
-    rt_int16_t res, i;
-    rt_uint32_t crc;
-
-    if ((res = zread_byte()) & ~0377)
-        return res;
-    header_type = res;
-    crc = 0xFFFFFFFFL;
-    crc = updcrc32(res, crc);
-
-    for (i=0;i<4;i++)    /* 4headers */
-    {
-        if ((res = zread_byte()) & ~0377)
-            return res;
-        crc = updcrc32(res, crc);
-        *hdr++ = res;
-
-    }
-    for (i=0;i<4;i++)   /* 4bytes crc */
-    {
-        if ((res = zread_byte()) & ~0377)
-            return res;
-        crc = updcrc32(res, crc);
-
-    }
-    if (crc != 0xDEBB20E3)
-    {
-#ifdef ZDEBUG
-        rt_kprintf("CRC error\n");
-#endif
-        return -RT_ERROR;
-    }
-
-    return header_type;
-}
-
-
-/* receive a hex style header (type and position) */
-rt_int16_t zget_hex_header(rt_uint8_t *hdr)
-{
-    rt_int16_t res,i;
-    rt_uint16_t crc;
-
-    if ((res = zget_hex()) < 0)
-        return res;
-    header_type = res;
-    crc = updcrc16(res, 0);
-
-    for (i=0;i<4;i++)
-    {
-        if ((res = zget_hex()) < 0)
-            return res;
-        crc = updcrc16(res, crc);
-        *hdr++ = res;
-    }
-    if ((res = zget_hex()) < 0)
-        return res;
-    crc = updcrc16(res, crc);
-    if ((res = zget_hex()) < 0)
-        return res;
-    crc = updcrc16(res, crc);
-    if (crc & 0xFFFF)
-    {
-#ifdef ZDEBUG
-        rt_kprintf("error code : CRC error\r\n");
-#endif
-        return -RT_ERROR;
-    }
-    res = zread_line(100);
-    if (res < 0)
-        return res;
-    res = zread_line(100);
-    if (res < 0)
-        return res;
-
-    return header_type;
-}
-
-/* convert to ascii */
-static void zsend_ascii(rt_uint8_t c)
-{
-    const char hex[] = "0123456789abcdef";
-
-    zsend_line(hex[(c&0xF0)>>4]);
-    zsend_line(hex[(c)&0xF]);
-
-    return;
-}
-
-/*
- * aend character c with ZMODEM escape sequence encoding.
- */
-void zsend_zdle_char(rt_uint16_t ch)
-{
-    rt_uint16_t res;
-
-    res = ch & 0377;
-    switch (res)
-    {
-    case 0377:
-        zsend_byte(res);
-        break;
-    case ZDLE:
-        zsend_byte(ZDLE);
-        res ^= 0100;
-        zsend_byte(res);
-        break;
-    case 021:
-    case 023:
-    case 0221:
-    case 0223:
-        zsend_byte(ZDLE);
-        res ^= 0100;
-        zsend_byte(res);
-        break;
-    default:
-        zsend_byte(res);
-    }
-}
-
-/* decode two lower case hex digits into an 8 bit byte value */
-static rt_int16_t zget_hex(void)
-{
-    rt_int16_t res,n;
-
-    if ((res = zxor_read()) < 0)
-        return res;
-    n = res - '0';
-    if (n > 9)
-        n -= ('a' - ':');
-    if (n & ~0x0f)
-        return -RT_ERROR;
-    if ((res = zxor_read()) < 0)
-        return res;
-    res -= '0';
-    if (res > 9)
-        res -= ('a' - ':');
-    if (res & ~0x0f)
-        return -RT_ERROR;
-    res += (n<<4);
-
-    return res;
-}
-
-
-/*
- * read a byte, checking for ZMODEM escape encoding
- *  including CAN*5 which represents a quick abort
- */
-rt_int16_t zread_byte(void)
-{
-    register int res;
-
-again:
-    /* Quick check for non control characters */
-    if ((res = zread_line(100)) & 0140)
-        return res;
-    switch (res)
-    {
-    case ZDLE:
-        break;
-    case 023:
-    case 0223:
-    case 021:
-    case 0221:
-        goto again;
-    default:
-        return res;
-    }
-again2:
-    if ((res = zread_line(100)) < 0)
-        return res;
-    if (res == CAN && (res = zread_line(100)) < 0)
-        return res;
-    if (res == CAN && (res = zread_line(100)) < 0)
-        return res;
-    if (res == CAN && (res = zread_line(100)) < 0)
-        return res;
-    switch (res)
-    {
-    case CAN:
-         return GOTCAN;
-    case ZCRCE:
-    case ZCRCG:
-    case ZCRCQ:
-    case ZCRCW:
-         return (res | GOTOR);
-    case ZRUB0:
-         return 0177;
-    case ZRUB1:
-         return 0377;
-    case 023:
-    case 0223:
-    case 021:
-    case 0221:
-         goto again2;
-    default:
-         if ((res & 0140) ==  0100)
-            return (res ^ 0100);
-         break;
-    }
-
-    return -RT_ERROR;
-}
-
-/*
- * @read a character from the modem line with timeout.
- * @eat parity, XON and XOFF characters.
- */
-rt_int16_t zxor_read(void)
-{
-    rt_int16_t res;
-
-    for (;;)
-    {
-        if ((res = zread_line(100)) < 0)
-            return res;
-        switch (res &= 0177) {
-        case XON:
-        case XOFF:
-            continue;
-        case '\r':
-        case '\n':
-        case ZDLE:
-        default:
-            return res;
-        }
-    }
-
-}
-
-/* put file posistion into the header*/
-void zput_pos(rt_uint32_t pos)
-{
-    tx_header[ZP0] = pos;
-    tx_header[ZP1] = pos>>8;
-    tx_header[ZP2] = pos>>16;
-    tx_header[ZP3] = pos>>24;
-
-    return;
-}
-
-/* Recover a long integer from a header */
-void zget_pos(rt_uint32_t pos)
-{
-    Rxpos = (rx_header[ZP3] & 0377);
-    Rxpos = (Rxpos << 8) | (rx_header[ZP2] & 0377);
-    Rxpos = (Rxpos << 8) | (rx_header[ZP1] & 0377);
-    Rxpos = (Rxpos << 8) | (rx_header[ZP0] & 0377);
-
-    return;
-}
-
-/* end of zcore.c */
diff --git a/components/utilities/zmodem/zdef.h b/components/utilities/zmodem/zdef.h
deleted file mode 100644
index cfb9784f30..0000000000
--- a/components/utilities/zmodem/zdef.h
+++ /dev/null
@@ -1,217 +0,0 @@
-#ifndef __ZDEF_H__
-#define __ZDEF_H__
-
-#include <rtthread.h>
-#include "crc.h"
-#define ZPAD      '*'   /* 052 padding character begins frames */
-#define ZDLE      030   /* ctrl-X ZMODEM escape - `ala BISYNC DLE */
-#define ZDLEE     (ZDLE^0100)   /* escaped ZDLE as transmitted */
-#define ZBIN      'A'   /* binary frame indicator (CRC-16) */
-#define ZHEX      'B'   /* hex frame indicator */
-#define ZBIN32    'C'   /* binary frame with 32 bit FCS */
-#define ZBINR32   'D'   /* RLE packed Binary frame with 32 bit FCS */
-#define ZVBIN     'a'   /* binary frame indicator (CRC-16) */
-#define ZVHEX     'b'   /* hex frame indicator */
-#define ZVBIN32   'c'   /* binary frame with 32 bit FCS */
-#define ZVBINR32  'd'   /* RLE packed Binary frame with 32 bit FCS */
-#define ZRESC     0176  /* RLE flag/escape character */
-
-
-/* Frame types */
-#define ZRQINIT   0     /* request receive init */
-#define ZRINIT    1     /* receive init */
-#define ZSINIT    2     /* send init sequence (optional) */
-#define ZACK      3     /* ACK to above */
-#define ZFILE     4     /* file name from sender */
-#define ZSKIP     5     /* ro sender: skip this file */
-#define ZNAK      6     /* last packet was garbled */
-#define ZABORT    7     /* abort batch transfers */
-#define ZFIN      8     /* finish session */
-#define ZRPOS     9     /* resume data trans at this position */
-#define ZDATA     10    /* data packet(s) follow */
-#define ZEOF      11    /* end of file */
-#define ZFERR     12    /* fatal Read or Write error Detected */
-#define ZCRC      13    /* request for file CRC and response */
-#define ZCHALLENGE 14   /* receiver's Challenge */
-#define ZCOMPL    15    /* request is complete */
-#define ZCAN      16    /* other end canned session with CAN*5 */
-#define ZFREECNT  17    /* request for free bytes on filesystem */
-#define ZCOMMAND  18    /* command from sending program */
-
-/* ZDLE sequfences */
-#define ZCRCE     'h'   /* CRC next, frame ends, header packet follows */
-#define ZCRCG     'i'   /* CRC next, frame continues nonstop */
-#define ZCRCQ     'j'   /* CRC next, frame continues, ZACK expected */
-#define ZCRCW     'k'   /* CRC next, ZACK expected, end of frame */
-#define ZRUB0     'l'   /* translate to rubout 0177 */
-#define ZRUB1     'm'   /* translate to rubout 0377 */
-
-/* zdlread return values (internal) */
-/* -1 is general error, -2 is timeout */
-#define GOTOR     0400
-#define GOTCRCE   (ZCRCE|GOTOR) /* ZDLE-ZCRCE received */
-#define GOTCRCG   (ZCRCG|GOTOR) /* ZDLE-ZCRCG received */
-#define GOTCRCQ   (ZCRCQ|GOTOR) /* ZDLE-ZCRCQ received */
-#define GOTCRCW   (ZCRCW|GOTOR) /* ZDLE-ZCRCW received */
-#define GOTCAN    (GOTOR|030)   /* CAN*5 seen */
-
-/* Byte positions within header array */
-#define ZF0       3     /* first flags byte */
-#define ZF1       2
-#define ZF2       1
-#define ZF3       0
-#define ZP0       0     /* low order 8 bits of position */
-#define ZP1       1
-#define ZP2       2
-#define ZP3       3     /* high order 8 bits of file position */
-
-/* parameters for ZRINIT header */
-#define ZRPXWN    8     /* 9th byte in header contains window size/256 */
-#define ZRPXQQ    9     /* 10th to 14th bytes contain quote mask */
-/* bit Masks for ZRINIT flags byte ZF0 */
-#define CANFDX    0x01  /* rx can send and receive true FDX */
-#define CANOVIO   0x02  /* rx can receive data during disk I/O */
-#define CANBRK    0x04  /* rx can send a break signal */
-#define CANRLE    0x10  /* receiver can decode RLE */
-#define CANLZW    0x20  /* receiver can uncompress */
-#define CANFC32   0x28  /* receiver can use 32 bit Frame Check */
-#define ESCCTL    0x64  /* receiver expects ctl chars to be escaped */
-#define ESC8      0xc8  /* receiver expects 8th bit to be escaped */
-
-/* bit Masks for ZRINIT flags byte ZF1 */
-#define CANVHDR   01    /* variable headers OK */
-#define ZRRQWN    8     /* receiver specified window size in ZRPXWN */
-#define ZRRQQQ    16    /* additional control chars to quote in ZRPXQQ  */
-#define ZRQNVH    (ZRRQWN|ZRRQQQ)   /* variable len hdr reqd to access info */
-
-/* Parameters for ZSINIT frame */
-#define ZATTNLEN  32    /* max length of attention string */
-#define ALTCOFF   ZF1   /* offset to alternate canit string, 0 if not used */
-
-/* Parameters for ZFILE frame */
-/* Conversion options one of these in ZF0 */
-#define ZCBIN     1    /* binary transfer - inhibit conversion */
-#define ZCNL      2    /* convert NL to local end of line convention */
-#define ZCRESUM   3    /* resume interrupted file transfer */
-/* management include options, one of these ored in ZF1 */
-#define ZMSKNOLOC 0200 /* skip file if not present at rx */
-/* management options, one of these ored in ZF1 */
-#define ZMMASK    037  /* mask for the choices below */
-#define ZMNEWL    1    /* transfer if source newer or longer */
-#define ZMCRC     2    /* transfer if different file CRC or length */
-#define ZMAPND    3    /* append contents to existing file (if any) */
-#define ZMCLOB    4    /* replace existing file */
-#define ZMNEW     5    /* transfer if source newer */
-/* number 5 is alive ... */
-#define ZMDIFF    6    /* transfer if dates or lengths different */
-#define ZMPROT    7    /* protect destination file */
-#define ZMCHNG    8    /* change filename if destination exists */
-/* transport options, one of these in ZF2 */
-#define ZTLZW     1    /* lempel-Ziv compression */
-#define ZTRLE     3    /* run Length encoding */
-/* extended options for ZF3, bit encoded */
-#define ZXSPARS   64   /* encoding for sparse file operations */
-#define ZCANVHDR  01   /* variable headers OK */
-/* receiver window size override */
-#define ZRWOVR    4    /* byte position for receive window override/256 */
-
-/* parameters for ZCOMMAND frame ZF0 (otherwise 0) */
-#define ZCACK1    1    /* acknowledge, then do command */
-extern char Attn[ZATTNLEN+1];   /* Attention string rx sends to tx on err */
-
-/* globals used by ZMODEM functions */
-extern rt_uint8_t  Rxframeind;     /* ZBIN ZBIN32, or ZHEX type of frame */
-extern char header_type;           /* type of header received */
-extern rt_uint8_t  rx_header[4];   /* received header */
-extern rt_uint8_t  tx_header[4];   /* transmitted header */
-extern rt_uint8_t  Txfcs32;        /* TRUE means send binary frames with 32 bit FCS */
-extern rt_uint16_t Rxcount;        /* count of data bytes received */
-extern rt_uint16_t Rxtimeout;      /* tenths of seconds to wait for something */
-extern rt_uint32_t Rxpos;          /* received file position */
-extern rt_uint32_t Txpos;          /* transmitted file position */
-extern rt_uint8_t  Txfcs32;        /* TURE means send binary frames with 32 bit FCS */
-
-/* ward Christensen / CP/M parameters - Don't change these! */
-#define ENQ     005
-#define CAN     ('X'&037)
-#define XOFF    ('s'&037)
-#define XON     ('q'&037)
-#define SOH     1
-#define STX     2
-#define ETX     3
-#define SYN     026
-#define ESC     033
-#define WANTG   0107    /* send G not NAK to get nonstop batch xmsn */
-#define EOT     4
-#define ACK     6
-#define NAK     025
-#define CPMEOF  032
-#define WANTCRC 0103    /* send C not NAK to get crc not checksum */
-#define TIMEOUT (-2)
-#define RCDO    (-3)
-#define GCOUNT  (-4)
-#define ERRORMAX 5
-#define RETRYMAX 5
-#define WCEOT   (-10)
-
-
-
-
-
-#define BITRATE 115200
-#define TX_BUFFER_SIZE  1024
-#define RX_BUFFER_SIZE  1024      /* sender or receiver's max buffer size */
-extern char ZF0_CMD;              /* local ZMODEM file conversion request */
-extern char ZF1_CMD;              /* local ZMODEM file management request */
-extern char ZF2_CMD;              /* local ZMODEM file management request */
-extern char ZF3_CMD;              /* local ZMODEM file management request */
-extern rt_uint32_t Baudrate ;
-extern rt_uint32_t Left_bytes;
-extern rt_uint32_t Left_sizes;
-
-
-struct zmodemf
-{
-    struct rt_semaphore zsem;
-    rt_device_t device;
-};
-extern struct zmodemf zmodem;
-
-struct zfile
-{
-    char *fname;
-    rt_int32_t   fd;
-    rt_uint32_t  ctime;
-    rt_uint32_t  mode;
-    rt_uint32_t  bytes_total;
-    rt_uint32_t  bytes_sent;
-    rt_uint32_t  bytes_received;
-    rt_uint32_t  file_end;
-
-};
-extern struct finsh_shell* shell;
-
-#define ZDEBUG 0
-/* sz.c */
-extern void zs_start(char *path);
-/* rz.c */
-extern void zr_start(char *path);
-
-/* zcore.c */
-extern void zinit_parameter(void);
-extern rt_int16_t zget_header(rt_uint8_t *hdr);
-extern void zsend_bin_header(rt_uint8_t type, rt_uint8_t *hdr);
-extern void zsend_hex_header(rt_uint8_t type, rt_uint8_t *hdr);
-extern rt_int16_t zget_data(rt_uint8_t *buf, rt_uint16_t len);
-extern void zsend_bin_data(rt_uint8_t *buf, rt_int16_t len, rt_uint8_t frameend);
-extern void zput_pos(rt_uint32_t pos);
-extern void zget_pos(rt_uint32_t pos);
-/* zdevice.c */
-extern rt_uint32_t get_device_baud(void);
-extern void zsend_byte(rt_uint16_t c);
-extern void zsend_line(rt_uint16_t c);
-extern rt_int16_t zread_line(rt_uint16_t timeout);
-extern void zsend_break(char *cmd);
-extern void zsend_can(void);
-
-#endif  /* __ZDEF_H__ */
diff --git a/components/utilities/zmodem/zdevice.c b/components/utilities/zmodem/zdevice.c
deleted file mode 100644
index 980a15f4f8..0000000000
--- a/components/utilities/zmodem/zdevice.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * File      : zdevice.c
- * the implemention of zmodem protocol.
- * Change Logs:
- * Date           Author       Notes
- * 2011-03-29     itspy
- */
-
-#include <rtthread.h>
-#include <finsh.h>
-#include <shell.h>
-#include <rtdef.h>
-#include <dfs.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include "zdef.h"
-
-
-rt_uint32_t Line_left  = 0;          /* left number of data in the read line buffer*/
-rt_uint32_t Left_sizes = 0;          /* left file sizes */
-rt_uint32_t Baudrate   = BITRATE;    /* console baudrate */
-
-
-
-rt_uint32_t get_device_baud(void)
-{
-    return(Baudrate);
-}
-
-rt_uint32_t get_sys_time(void)
-{
-    return(0L);
-}
-
-void zsend_byte(rt_uint16_t ch)
-{
-    rt_device_write(zmodem.device, 0, &ch,1);
-
-    return;
-}
-
-void zsend_line(rt_uint16_t c)
-{
-    rt_uint16_t ch;
-
-    ch = (c & 0377);
-    rt_device_write(zmodem.device, 0, &ch, 1);
-
-    return;
-}
-
-rt_int16_t zread_line(rt_uint16_t timeout)
-{
-    char *str;
-    static char buf[10];
-
-    if (Line_left > 0)
-    {
-        Line_left -= 1;
-        return (*str++ & 0377);
-    }
-    Line_left = 0;
-    timeout/=5;
-    while (1)
-    {
-        Line_left = rt_device_read(shell->device, 0, buf, 1);
-        if (Line_left)
-        {
-             Line_left = Line_left;
-             str = buf;
-             break;
-        }
-    }
-    if (Line_left < 1) return TIMEOUT;
-    Line_left -=1;
-
-    return (*str++ & 0377);
-}
-
-/*
- * send a string to the modem, processing for \336 (sleep 1 sec)
- *   and \335 (break signal)
- */
-void zsend_break(char *cmd)
-{
-
-    while (*cmd++)
-    {
-        switch (*cmd)
-        {
-        case '\336':
-             continue;
-        case '\335':
-             rt_thread_delay(RT_TICK_PER_SECOND);
-             continue;
-        default:
-             zsend_line(*cmd);
-             break;
-        }
-    }
-}
-/* send cancel string to get the other end to shut up */
-void zsend_can(void)
-{
-    static char cmd[] = {24,24,24,24,24,24,24,24,24,24,0};
-
-    zsend_break(cmd);
-    rt_kprintf("\x0d");
-    Line_left=0;           /* clear Line_left */
-
-    return;
-}
-
-/* end of zdevice.c */
diff --git a/components/utilities/zmodem/zstart.c b/components/utilities/zmodem/zstart.c
deleted file mode 100644
index 5c44ee86a7..0000000000
--- a/components/utilities/zmodem/zstart.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * File      : zstart.c
- * the implemention of zmodem protocol.
- * Change Logs:
- * Date           Author       Notes
- * 2011-03-29     itspy
- */
-
-#include <rtthread.h>
-#include <finsh.h>
-#include <shell.h>
-#include <dfs.h>
-#include <dfs_file.h>
-#include "zdef.h"
-
-
-
-struct zmodemf zmodem;
-
-rt_err_t zmodem_rx_ind(rt_device_t dev, rt_size_t size)
-{
-    /* release semaphore */
-    rt_sem_release(&zmodem.zsem);
-
-    return RT_EOK;
-}
-
-void finsh_rz(void *parameter)
-{
-    char *path;
-    rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size);
-    rt_uint8_t flag;
-
-    flag = RT_DEVICE_FLAG_STREAM;
-    zmodem.device->flag &=(~flag);
-    rt_sem_init(&(zmodem.zsem), "zsem", 0, 0);
-    path = rt_thread_self()->parameter;
-    /* save old rx_indicate */
-    rx_indicate = zmodem.device->rx_indicate;
-    /* set new rx_indicate */
-    rt_device_set_rx_indicate(zmodem.device, RT_NULL);
-    /* start receive remote files */
-    zr_start(path);
-    zmodem.device->flag |=flag;
-    /* recovery old rx_indicate */
-    rt_device_set_rx_indicate(zmodem.device, rx_indicate);
-    /* finsh>> */
-    rt_kprintf(FINSH_PROMPT);
-}
-void finsh_sz(void *parameter)
-{
-    char *path;
-    rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size);
-    rt_uint8_t flag;
-
-    flag = RT_DEVICE_FLAG_STREAM;
-    zmodem.device->flag &=(~flag);
-    rt_sem_init(&(zmodem.zsem), "zsem", 0, 0);
-    path = rt_thread_self()->parameter;
-    /* save old rx_indicate */
-    rx_indicate = zmodem.device->rx_indicate;
-    /* set new rx_indicate */
-    rt_device_set_rx_indicate(zmodem.device, zmodem_rx_ind);
-    zs_start(path);
-    zmodem.device->flag |=flag;
-    /* recovery old rx_indicate */
-    rt_device_set_rx_indicate(zmodem.device, rx_indicate);
-    /* finsh>> */
-    rt_kprintf(FINSH_PROMPT);
-}
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-#include <shell.h>
-
-static void rz(char *para)
-{
-    rt_thread_t init_thread;
-    rt_device_t device;
-    const char* device_name = finsh_get_device();
-
-    device = rt_device_find(device_name);
-    if( device == RT_NULL )
-    {
-        rt_kprintf("%s not find\r\n",device_name);
-    }
-    zmodem.device = device;
-    init_thread = rt_thread_create("rz",
-                                   finsh_rz,
-                                   (void*)para,
-                                   2048,
-                                   rt_thread_self()->current_priority+1,
-                                   20);
-
-    if (init_thread != RT_NULL) rt_thread_startup(init_thread);
-}
-FINSH_FUNCTION_EXPORT(rz, receive files by zmodem protocol)
-static void sz(char *para)
-{
-    rt_thread_t init_thread;
-    rt_device_t device;
-    const char* device_name = finsh_get_device();
-
-    device = rt_device_find(device_name);
-    if( device == RT_NULL )
-    {
-        rt_kprintf("%s not find\r\n",device_name);
-    }
-    zmodem.device = device;
-    init_thread = rt_thread_create("sz",
-                                   finsh_sz,
-                                   (void*)para,
-                                   2048,
-                                   rt_thread_self()->current_priority+1,
-                                   20);
-
-    if (init_thread != RT_NULL) rt_thread_startup(init_thread);
-}
-FINSH_FUNCTION_EXPORT(sz, send files by zmodem protocol)
-#endif