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https://github.com/yoboujon/dumber.git
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61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
#include "system_dumby.h"
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#include <stm32f10x.h>
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#include <string.h>
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#define TBufferSPI 16
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SPI_InitTypeDef SPI_InitStructure;
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uint16_t tailleT=0;
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uint16_t tailleR=0;
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char TSPIBuffer[TBufferSPI]={'S','A','L','U','T',0x0D};
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char RSPIBuffer[TBufferSPI];
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void SPI_INIT(void)
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{
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//Init SPI
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SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
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SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
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SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
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SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
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SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
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SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
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SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
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SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
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SPI_InitStructure.SPI_CRCPolynomial = 0;
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SPI_Init(SPI1, &SPI_InitStructure);
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/* Enable SPI1 */
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SPI_Cmd(SPI1, ENABLE);
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}
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/*
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Le caractére 13 ou 0x0D ou retour chariot, ne peut être reçu ni envoyer.
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*/
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void SPI_SEND(void)
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{
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if(TSPIBuffer[tailleT]!=0x0D)
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{
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while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
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SPI_I2S_SendData(SPI1, TSPIBuffer[tailleT]);
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tailleT++;
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}
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else
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{
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tailleT=0;
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}
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}
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void SPI_RECEP(void)
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{
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if(SPI_I2S_ReceiveData(SPI1)!=0x0D)
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{
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while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
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RSPIBuffer[tailleR] = SPI_I2S_ReceiveData(SPI1);
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tailleR++;
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}
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else
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{
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tailleR=0;
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}
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}
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