158 lines
3.5 KiB
C
158 lines
3.5 KiB
C
#include "../main/SystemInclude.h"
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/* File start *****************************************************************/
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#if ENABLE_USE_MB85RS16
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/******************************************************************************/
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/******************************************************************************/
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void FRAMInit(void)
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{
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FRAM_WP_OUTPUT();
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FRAM_CS_OUTPUT();
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DisableFRAM();
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DisableFRAMWrite();
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}
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/******************************************************************************/
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void ProtectFRAM(void)
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{
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EnableFRAMWrite();
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EnableFRAM();
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SPIWriteData(FRAM_WREN);
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SPIWriteData(FRAM_WRSR);
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SPIWriteData(FULL_ARRAY_PROTECTION);
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SPIWriteData(FRAM_WRDI);
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DisableFRAM();
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DisableFRAMWrite();
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}
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/******************************************************************************/
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void UnProtectFRAM(void)
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{
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EnableFRAMWrite();
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EnableFRAM();
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SPIWriteData(FRAM_WREN);
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SPIWriteData(FRAM_WRSR);
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SPIWriteData(NO_PROTECTION);
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SPIWriteData(FRAM_WREN);
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DisableFRAM();
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}
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/******************************************************************************/
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void WriteByteToFRAM(u16 address, u8 data)
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{
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EnableSPI(SPI_MODE3);
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UnProtectFRAM();
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EnableFRAM();
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SPIWriteData(FRAM_WRITE);
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SPIWriteData(address>>8);
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SPIWriteData(address);
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SPIWriteData(data);
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DisableFRAM();
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ProtectFRAM();
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DisableSPI();
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}
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/******************************************************************************/
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u8 ReadByteFromFRAM(u16 address)
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{
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u8 data;
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EnableSPI(SPI_MODE3);
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EnableFRAM();
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SPIWriteData(FRAM_READ);
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SPIWriteData(address>>8);
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SPIWriteData(address);
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data = SPIReadData();
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DisableFRAM();
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DisableSPI();
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return data;
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return 0;
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}
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/******************************************************************************/
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void WriteMultiByteToFRAM(u16 address, u8 *pointer, u8 length)
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{
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u8 I;
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EnableSPI(SPI_MODE3);
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delay_ms(1);
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UnProtectFRAM();
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EnableFRAM();
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SPIWriteData(FRAM_WRITE);
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SPIWriteData(address>>8);
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SPIWriteData(address);
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for(I=0; I<length; I++)
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{
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SPIWriteData(*pointer);
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pointer++;
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}
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DisableFRAM();
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ProtectFRAM();
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DisableSPI();
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}
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/******************************************************************************/
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void ReadMultiByteFromFRAM(u16 address, u8 *pointer, u8 length)
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{
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u16 I;
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EnableSPI(SPI_MODE3);
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delay_ms(1);
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EnableFRAM();
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SPIWriteData(FRAM_READ);
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SPIWriteData(address>>8);
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SPIWriteData(address);
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for(I=0; I<length; I++) *(pointer+I) = SPIReadData();
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DisableFRAM();
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DisableSPI();
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}
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/******************************************************************************/
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u8 ReadFRAMDeviceID(void)
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{
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u8 temp[8];
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//DisableSPI();
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DisableFRAM();
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EnableSPI(SPI_MODE3);
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delay_10us(100);
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EnableFRAM();
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SPIWriteData(FRAM_RDID);
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delay_10us(10);
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temp[0] = SPIReadData();
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temp[1] = SPIReadData();
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temp[2] = SPIReadData();
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temp[3] = SPIReadData();
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temp[4] = SPIReadData();
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temp[5] = SPIReadData();
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temp[6] = SPIReadData();
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temp[7] = SPIReadData();
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DisableFRAM();
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// DisableSPI();
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if(temp[0] != 0x04) return 1;
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if(temp[1] != 0x7f) return 1;
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return 0;
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}
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/* File end *****************************************************************/
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#endif
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/****************************************************************************/ |