blob: b859d36226bd0ef9a2311d0f4439d26bf10654a6 (
plain)
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
|
/*!
\file exmc_nandflash.h
\brief the header file of sdram(MICRON 48LC16M16A2) driver
*/
/*
Copyright (C) 2016 GigaDevice
2016-10-19, V1.0.0, demo for GD32F4xx
*/
#ifndef EXMC_SDRAM_H
#define EXMC_SDRAM_H
#include "gd32f4xx.h"
/* sdram peripheral initialize */
void exmc_synchronous_dynamic_ram_init(uint32_t sdram_device);
/* fill the buffer with specified value */
void fill_buffer(uint8_t *pbuffer, uint16_t buffer_lengh, uint16_t offset);
/* write a byte buffer(data is 8 bits) to the EXMC SDRAM memory */
void sdram_writebuffer_8(uint32_t sdram_device,uint8_t* pbuffer, uint32_t writeaddr, uint32_t numbytetowrite);
/* read a block of 8-bit data from the EXMC SDRAM memory */
void sdram_readbuffer_8(uint32_t sdram_device,uint8_t* pbuffer, uint32_t readaddr, uint32_t numbytetoread);
#define SDRAM_DEVICE0_ADDR ((uint32_t)0xC0000000)
#define SDRAM_DEVICE1_ADDR ((uint32_t)0xD0000000)
#endif /* EXMC_SDRAM_H */
|
