1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
|
/******************************************************************************
******************************************************************************
*
* @file flash.c
*
* @brief application entry point which performs application specific tasks.
*
*******************************************************************************
*
* provide a demo for how to initialize the NV32, output messages via SCI,
* flash operations, etc.
* NOTE:
* printf call may occupy a lot of memory (around 1924 bytes), so please
* consider your code size before using printf.
******************************************************************************
*
* provide FLASH driver
*
******************************************************************************/
#include "flash.h"
/******************************************************************************
* Global variables
******************************************************************************/
/******************************************************************************
* Constants and macros
******************************************************************************/
/******************************************************************************
* Local types
******************************************************************************/
/******************************************************************************
* Local function prototypes
******************************************************************************/
/******************************************************************************
* Local variables
******************************************************************************/
/******************************************************************************
* Local functions
******************************************************************************/
/******************************************************************************
* Global functions
******************************************************************************/
/*****************************************************************************//*!
+FUNCTION----------------------------------------------------------------
* @function name: Flash_CopyInRAM
*
* @brief This section of the code is the one that copies the routine into RAM.
* It is following the steps documented in Technical Note 228
*
* @param
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
#define FLASH_ENABLE_STALLING_FLASH_CONTROLLER
/*****************************************************************************//*!
+FUNCTION----------------------------------------------------------------
* @function name: Flash_Init
*
* @brief initialize flash driver
*
* @param
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
uint16_t Flash_Init(void)
{
uint16_t err = FLASH_ERR_SUCCESS;
uint32_t clkDIV = BUS_CLK_HZ/1000000L - 1;
uint32_t Tpgs =(285 *(BUS_CLK_HZ/100))/1000000L; //update 2016.8.4 by ����GG
uint32_t Tprog =(675*(BUS_CLK_HZ/100))/1000000L; //by ����GG
// printf("Tpgs= %x \n" , Tpgs);
// printf("Tprog= %x \n" , Tprog);
EFMCR=(clkDIV<<24) + 0x00001103; //divide to 1M hz
EFMETM0=(Tpgs<<16) + 0x00001194; //0x00281194; //
EFMETM1=(Tprog<<16) + 0x000088B8; //
// printf("EFMCR= %x \n" , EFMCR);
// printf("EFMETM0= %x \n" , EFMETM0);
// printf("EFMETM1= %x \n" , EFMETM1);
return(err);
}
/*****************************************************************************//*!
+FUNCTION----------------------------------------------------------------
* @function name: FlashProgram
*
* @brief program flash routine, each program operation supports up to 2 longwords
* programming
*
* @param
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
uint16_t Flash_Program(uint32_t wNVMTargetAddress, uint8_t *pData, uint16_t sizeBytes)
{
uint16_t err = FLASH_ERR_SUCCESS;
uint16_t w2LongWordCount = sizeBytes>>3;
uint8_t wLeftBytes = (sizeBytes & 0x07);
uint16_t wLeftLongWords = wLeftBytes>>2;
uint32_t wTargetAddress = wNVMTargetAddress;
uint32_t dwData0,dwData1;
uint32_t *pdwData = (uint32_t*)pData;
int i;
//printf("\n adr : 0x%x ,data = 0x%x\n",w2LongWordCount,wLeftLongWords );
// Check address to see if it is aligned to 4 bytes
// Global address [1:0] must be 00.
if(wNVMTargetAddress & 0x03)
{
err = FLASH_ERR_INVALID_PARAM;
return (err);
}
// Loop for the two longwords (8 bytes) programming
for(i = 0; i < w2LongWordCount; i++)
{
dwData0 = *pdwData++;
dwData1 = *pdwData++;
err = Flash_Program2LongWords(wTargetAddress, dwData0, dwData1);
if(err)
{
goto EndP;
//break;
}
wTargetAddress += 8;
}
// Loop for the single longword (4 bytes) programming
for(i = 0; i < wLeftLongWords; i++)
{
dwData0 = *pdwData++;
//printf("\n adr : 0x%x ,data = 0x%x\n",i,dwData0 );
err = Flash_Program1LongWord(wTargetAddress, dwData0);
//printf("\n adr : 0x%x ,data = 0x%x\n",i,dwData0 );
if(err)
{
goto EndP;
//break;
}
wTargetAddress += 4;
}
wLeftBytes = (wLeftBytes-(wLeftLongWords<<2)); // calculate the # of bytes that are not programmed
if(!wLeftBytes){
return (err);
}
#if defined(BIG_ENDIAN)
dwData0 = 0;
pData = (uint8_t*)pdwData; // pointer to the left bytes
for(i = wLeftBytes; i >0; i--)
{
dwData0 <<= 8;
dwData0 |= *pData++; // MSB byte first
}
// Calculate how many bytes need to be filled with 0xFFs
// in order to form a single longword for the left bytes of data
wLeftBytes = 4 - wLeftBytes;
//
for(i = wLeftBytes; i >0; i--)
{
dwData0 <<= 8;
dwData0 |= 0xFF; // MSB byte first
}
#else
dwData0 = 0xFFFFFFFFL;
pData = (uint8_t*)pdwData+wLeftBytes-1; // pointer to the left bytes
for(i = wLeftBytes; i >0; i--)
{
dwData0 <<= 8;
dwData0 |= *pData--; // MSB byte first
}
#endif
// Now program the last longword
err = Flash_Program1LongWord(wTargetAddress, dwData0);
EndP:
return (err);
}
uint16_t Flash_Program1LongWord(uint32_t wNVMTargetAddress, uint32_t dwData)
{
uint16_t err = FLASH_ERR_SUCCESS;
// Check address to see if it is aligned to 4 bytes
// Global address [1:0] must be 00.
if(wNVMTargetAddress & 0x03)
{
err = FLASH_ERR_INVALID_PARAM;
return (err);
}
// Clear error flags
EFMCMD = FLASH_CMD_CLEAR;
// Write index to specify the command code to be loaded
M32(wNVMTargetAddress) = dwData;
// Write command code and memory address bits[23:16]
EFM_LaunchCMD(FLASH_CMD_PROGRAM);
return (err);
}
uint16_t Flash_Program2LongWords(uint32_t wNVMTargetAddress, uint32_t dwData0, uint32_t dwData1)
{
uint16_t err = FLASH_ERR_SUCCESS;
// Check address to see if it is aligned to 4 bytes
// Global address [1:0] must be 00.
if(wNVMTargetAddress & 0x03)
{
err = FLASH_ERR_INVALID_PARAM;
return (err);
}
// Clear error flags
EFMCMD = FLASH_CMD_CLEAR;
// printf("\n write data adr : 0x%x ,data = 0x%x\n",dwData0,dwData1 );
// Write index to specify the command code to be loaded
M32(wNVMTargetAddress) = dwData0;
// Write command code and memory address bits[23:16]
EFM_LaunchCMD(FLASH_CMD_PROGRAM);
wNVMTargetAddress = wNVMTargetAddress +4;
// printf("\n write data adr : 0x%x ,data = 0x%x\n",wNVMTargetAddress,dwData1 );
// Clear error flags
EFMCMD = FLASH_CMD_CLEAR;
// Write index to specify the command code to be loaded
M32(wNVMTargetAddress) = dwData1;
// Write command code and memory address bits[23:16]
EFM_LaunchCMD(FLASH_CMD_PROGRAM);
// printf("\n write data adr : 0x%x ,data = 0x%x\n",wNVMTargetAddress,dwData1 );
return (err);
}
/*****************************************************************************//*!
+FUNCTION----------------------------------------------------------------
* @function name: Flash_EraseSector
*
* @brief erase flash sector, each flash sector is of 512 bytes long,
* global address [1:0] = 00.
*
* @param
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
uint16_t Flash_EraseSector(uint32_t wNVMTargetAddress)
{
uint16_t err = FLASH_ERR_SUCCESS;
// Check address to see if it is aligned to 4 bytes
// Global address [1:0] must be 00.
if(wNVMTargetAddress & 0x03)
{
err = FLASH_ERR_INVALID_PARAM;
return (err);
}
// Clear error flags
EFMCMD = FLASH_CMD_CLEAR;
M32(wNVMTargetAddress) = 0xffffffff;
EFM_LaunchCMD(FLASH_CMD_ERASE_SECTOR);
return (err);
}
uint16_t Flash_VerifyBackdoorKey()
{
uint16_t err = FLASH_ERR_SUCCESS;
// int i;
// Clear error flags
EFMCMD = FLASH_CMD_CLEAR;
// Write index to specify the command code to be loaded
Custombkd = FLASH_FACTORY_KEY;
return (err);
}
/*****************************************************************************//*!
+FUNCTION----------------------------------------------------------------
* @function name: NVM_EraseAll
*
* @brief erase all block,both flash and EEPROM
*
* @param
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
uint16_t NVM_EraseAll(void)
{
uint16_t err = FLASH_ERR_SUCCESS;
EFMCMD = FLASH_CMD_CLEAR;
EFM_LaunchCMD(FLASH_CMD_ERASE_ALL);
// Clear error flags
return err;
}
/*****************************************************************************//*!
+FUNCTION----------------------------------------------------------------
* @function name: NVM_Unsecure
*
* @brief unsecure
*
* @param
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
uint16_t NVM_Unsecure(void)
{
uint16_t err = FLASH_ERR_SUCCESS;
return err;
}
#ifdef IAR
void __ramfunc EFM_LaunchCMD(uint32_t EFM_CMD)
#else
void EFM_LaunchCMD(uint32_t EFM_CMD)
#endif
{
DisableInterrupts;
if((EFMCMD&EFM_DONE_MASK)== EFM_STATUS_READY)
{
EFMCMD = EFM_CMD;
}
while(1)
{
if((EFMCMD&EFM_DONE_MASK) == EFM_STATUS_DONE) break;
}
EnableInterrupts;
}
|
