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108 lines
3.0 KiB
108 lines
3.0 KiB
6 months ago
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#include "spi13.h"
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void SPI13_Initialization(uint32_t speed, SPI13_MODE mode, bool lsbFirst)
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{
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USART1n_CFG_Type USART1n_Config;
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/*
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* Initialize USART13
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*/
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// MOSI
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HAL_GPIO_ConfigOutput( ( Pn_Type* )PE, 8, ALTERN_FUNC );
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HAL_GPIO_ConfigFunction( ( Pn_Type* )PE, 8, AFSRx_AF2 );
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// MISO
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//HAL_GPIO_ConfigOutput( ( Pn_Type* )PB, 1, ALTERN_FUNC );
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//HAL_GPIO_ConfigFunction( ( Pn_Type* )PB, 1, AFSRx_AF2 );
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// SCK
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HAL_GPIO_ConfigOutput( ( Pn_Type* )PE, 10, ALTERN_FUNC );
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HAL_GPIO_ConfigFunction( ( Pn_Type* )PE, 10, AFSRx_AF2 );
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// default: 38400-8-N-1
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HAL_USART_SPI_Mode_Config( &USART1n_Config );
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USART1n_Config.Mode = USART1n_SPI_MODE;
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USART1n_Config.Baudrate = speed;
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USART1n_Config.Databits = USART1n_DATA_BIT_8;
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USART1n_Config.Parity = USART1n_PARITY_BIT_NONE;
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USART1n_Config.Stopbits = USART1n_STOP_BIT_1;
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if(lsbFirst == true)
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USART1n_Config.Order = USART1n_SPI_LSB;
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else
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USART1n_Config.Order = USART1n_SPI_MSB;
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switch(mode)
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{
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case SPI13_MODE0:
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USART1n_Config.ACK = USART1n_SPI_TX_RISING;
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USART1n_Config.Edge = USART1n_SPI_TX_LEADEDGE_SAMPLE;
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break;
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case SPI13_MODE1:
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USART1n_Config.ACK = USART1n_SPI_TX_RISING;
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USART1n_Config.Edge = USART1n_SPI_TX_LEADEDGE_SETUP;
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break;
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case SPI13_MODE2:
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USART1n_Config.ACK = USART1n_SPI_TX_FALLING;
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USART1n_Config.Edge = USART1n_SPI_TX_LEADEDGE_SAMPLE;
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break;
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case SPI13_MODE3:
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USART1n_Config.ACK = USART1n_SPI_TX_FALLING;
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USART1n_Config.Edge = USART1n_SPI_TX_LEADEDGE_SETUP;
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break;
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}
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HAL_USART_Init( ( USART1n_Type* )USART13, &USART1n_Config );
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// SPI Master
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HAL_USART_DataControlConfig( ( USART1n_Type* )USART13, USART1n_CONTROL_MASTER, ENABLE );
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// ENABLE
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HAL_USART_Enable( ( USART1n_Type* )USART13, ENABLE );
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}
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void SPI13_Transmit(uint8_t* pTxData, uint32_t Tx_Len)
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{
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uint32_t i;
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for(i = 0 ; i < Tx_Len ; i++)
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{
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USART13->DR = pTxData[i];
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while((USART13->ST & 0x40)==0x00){} // transmit complete flag wait
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while((USART13->ST & 0x20)==0x00){} // receive complete flag wait
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uint8_t temp = USART13->DR;
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}
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}
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void SPI13_SendRecv(uint8_t* pTxByte, uint8_t* pRxByte, uint32_t TRx_Len)
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{
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uint32_t i;
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for(i = 0 ; i < TRx_Len ; i++)
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{
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USART13->DR = pTxByte[i];
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while((USART13->ST & 0x40)==0x00){} // transmit complete flag wait
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while((USART13->ST & 0x20)==0x00){} // receive complete flag wait
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pRxByte[i] = USART13->DR;
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}
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}
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uint8_t SPI13_SendReceiveByte(uint8_t SendByte)
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{
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uint8_t recvByte;
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USART13->DR = SendByte;
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while((USART13->ST & 0x40)==0x00){} // transmit complete flag wait
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while((USART13->ST & 0x20)==0x00){} // receive complete flag wait
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recvByte = USART13->DR;
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return recvByte;
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}
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