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some code fixes, start to draw new schematic

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This commit is contained in:
Edward Emelianov
2024-03-19 23:42:48 +03:00
parent ad92546f82
commit e92a5c4234
22 changed files with 156780 additions and 20670 deletions
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32
F3:F303/CANbus4BTA/spi.c
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@@ -81,10 +81,17 @@ void spi_setup(uint8_t idx){
// DS=8bit; RXNE generates after 8bit of data in FIFO;
SPI->CR2 |= SPI_CR2_FRXTH | SPI_CR2_DS_2|SPI_CR2_DS_1|SPI_CR2_DS_0;
spi_status[idx] = SPI_READY;
SPI->CR1 |= SPI_CR1_SPE;
if(idx == 2) SPI->CR1 |= SPI_CR1_SPE; // turn on SPI1 only when reading data
DBG("SPI works");
}
void spi_onoff(uint8_t idx, uint8_t on){
CHKIDX(idx);
volatile SPI_TypeDef *SPI = SPIs[idx];
if(on) SPI->CR1 |= SPI_CR1_SPE;
else SPI->CR1 &= ~SPI_CR1_SPE;
}
// turn off given SPI channel and release GPIO
void spi_deinit(uint8_t idx){
CHKIDX(idx);
@@ -100,6 +107,7 @@ void spi_deinit(uint8_t idx){
GPIOB->AFR[1] = GPIOB->AFR[1] & ~(GPIO_AFRH_AFRH4 | GPIO_AFRH_AFRH5 | GPIO_AFRH_AFRH6 | GPIO_AFRH_AFRH7);
GPIOB->MODER = GPIOB->MODER & ~(GPIO_MODER_MODER12 | GPIO_MODER_MODER13 | GPIO_MODER_MODER14 | GPIO_MODER_MODER15);
}
spi_status[idx] = SPI_NOTREADY;
}
int spi_waitbsy(uint8_t idx){
@@ -120,6 +128,8 @@ int spi_writeread(uint8_t idx, uint8_t *data, uint32_t n){
DBG("not ready");
return 0;
}
// clear SPI Rx FIFO
for(int i = 0; i < 4; ++i) (void) SPI2->DR;
for(uint32_t x = 0; x < n; ++x){
WAITX(!(SPIs[idx]->SR & SPI_SR_TXE));
*((volatile uint8_t*)&SPIs[idx]->DR) = data[x];
@@ -129,6 +139,26 @@ int spi_writeread(uint8_t idx, uint8_t *data, uint32_t n){
return 1;
}
// read data through SPI in read-only mode
int spi_read(uint8_t idx, uint8_t *data, uint32_t n){
CHKIDXR(idx);
if(spi_status[idx] != SPI_READY || !data || !n){
DBG("not ready");
return 0;
}
// clear SPI Rx FIFO
for(int i = 0; i < 4; ++i) (void) SPI2->DR;
spi_onoff(idx, TRUE);
for(uint32_t x = 0; x < n; ++x){
if(x == n - 1) SPIs[idx]->CR1 &= ~SPI_CR1_RXONLY;
WAITX(!(SPIs[idx]->SR & SPI_SR_RXNE));
data[x] = *((volatile uint8_t*)&SPIs[idx]->DR);
}
spi_onoff(idx, FALSE);
SPIs[idx]->CR1 |= SPI_CR1_RXONLY;
return 1;
}
/**
* @brief spi_send_dma - send data over SPI2 through DMA (used both for writing and reading)
* @param data - data to read