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