void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PB12 ------> SPI2_NSS
PB13 ------> SPI2_SCK
PB14 ------> SPI2_MISO
PB15 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_14;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI1)
{
/* USER CODE BEGIN SPI1_MspInit 0 */
/* USER CODE END SPI1_MspInit 0 */
/* Peripheral clock enable */
__SPI1_CLK_ENABLE();
/**SPI1 GPIO Configuration
PA5 ------> SPI1_SCK
PB4 ------> SPI1_MISO
PB5 ------> SPI1_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN SPI1_MspInit 1 */
/* USER CODE END SPI1_MspInit 1 */
}
else if(hspi->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PB13 ------> SPI2_SCK
PB14 ------> SPI2_MISO
PB15 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PD1 ------> SPI2_SCK
PD3 ------> SPI2_MISO
PD4 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_3|GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
if (hspi->Instance == SPI3) {
GPIO_InitTypeDef GPIO_InitStruct;
SPI3_MOSI_GPIO_CLK_ENABLE();
SPI3_MISO_GPIO_CLK_ENABLE();
SPI3_SCK_GPIO_CLK_ENABLE();
GPIO_InitStruct.Pin = SPI3_MOSI_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = SPI3_MOSI_AF;
HAL_GPIO_Init(SPI3_MOSI_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = SPI3_SCK_PIN;
GPIO_InitStruct.Alternate = SPI3_SCK_AF;
HAL_GPIO_Init(SPI3_SCK_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = SPI3_MISO_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Alternate = SPI3_MISO_AF;
HAL_GPIO_Init(SPI3_MISO_PORT, &GPIO_InitStruct);
// TODO: initialize DMA and IT
__SPI3_CLK_ENABLE();
} else if (hspi->Instance == SPI2) {
GPIO_InitTypeDef GPIO_InitStruct;
SPI2_MOSI_GPIO_CLK_ENABLE();
SPI2_MISO_GPIO_CLK_ENABLE();
SPI2_SCK_GPIO_CLK_ENABLE();
GPIO_InitStruct.Pin = SPI2_MOSI_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = SPI2_MOSI_AF;
HAL_GPIO_Init(SPI2_MOSI_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = SPI2_SCK_PIN;
GPIO_InitStruct.Alternate = SPI2_SCK_AF;
HAL_GPIO_Init(SPI2_SCK_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = SPI2_MISO_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Alternate = SPI2_MISO_AF;
HAL_GPIO_Init(SPI2_MISO_PORT, &GPIO_InitStruct);
// TODO: initialize DMA and IT
__SPI2_CLK_ENABLE();
}
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel) {
// Determine the SPI to use
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl);
if (obj->spi == (SPIName)NC) {
error("SPI error: pinout mapping failed.");
}
// Enable SPI clock
if (obj->spi == SPI_1) {
__SPI1_CLK_ENABLE();
}
if (obj->spi == SPI_2) {
__SPI2_CLK_ENABLE();
}
if (obj->spi == SPI_3) {
__SPI3_CLK_ENABLE();
}
// Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
// Save new values
obj->bits = SPI_DATASIZE_8BIT;
obj->cpol = SPI_POLARITY_LOW;
obj->cpha = SPI_PHASE_1EDGE;
obj->br_presc = SPI_BAUDRATEPRESCALER_256;
obj->pin_miso = miso;
obj->pin_mosi = mosi;
obj->pin_sclk = sclk;
obj->pin_ssel = ssel;
if (ssel == NC) { // SW NSS Master mode
obj->mode = SPI_MODE_MASTER;
obj->nss = SPI_NSS_SOFT;
} else { // Slave
pinmap_pinout(ssel, PinMap_SPI_SSEL);
obj->mode = SPI_MODE_SLAVE;
obj->nss = SPI_NSS_HARD_INPUT;
}
init_spi(obj);
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI2)
{
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PC2 ------> SPI2_MISO
PC3 ------> SPI2_MOSI
PB10 ------> SPI2_SCK
PB12 ------> SPI2_NSS
*/
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
else if(hspi->Instance==SPI4)
{
/* Peripheral clock enable */
__SPI4_CLK_ENABLE();
/**SPI4 GPIO Configuration
PE2 ------> SPI4_SCK
PE4 ------> SPI4_NSS
PE6 ------> SPI4_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI4;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
}
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
{
// Determine the SPI to use
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl);
MBED_ASSERT(obj->spi != (SPIName)NC);
// Enable SPI clock
if (obj->spi == SPI_1) {
__SPI1_CLK_ENABLE();
}
#if defined(SPI2_BASE)
if (obj->spi == SPI_2) {
__SPI2_CLK_ENABLE();
}
#endif
// Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
// Save new values
obj->bits = SPI_DATASIZE_8BIT;
obj->cpol = SPI_POLARITY_LOW;
obj->cpha = SPI_PHASE_1EDGE;
obj->br_presc = SPI_BAUDRATEPRESCALER_256;
obj->pin_miso = miso;
obj->pin_mosi = mosi;
obj->pin_sclk = sclk;
obj->pin_ssel = ssel;
if (ssel != NC) {
pinmap_pinout(ssel, PinMap_SPI_SSEL);
} else {
obj->nss = SPI_NSS_SOFT;
}
init_spi(obj);
}
void HAL_I2S_MspInit(I2S_HandleTypeDef* hi2s)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2s->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**I2S2 GPIO Configuration
PC2 ------> I2S2_ext_SD
PC3 ------> I2S2_SD
PB10 ------> I2S2_CK
PB12 ------> I2S2_WS
PC6 ------> I2S2_MCK
*/
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF6_I2S2ext;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
/*
* SPI mode 3
*/
void Spi2Init()
{
__SPI2_CLK_ENABLE();
__GPIOB_CLK_ENABLE();
/*
SPIx_SCK_GPIO_CLK_ENABLE();
SPIx_MISO_GPIO_CLK_ENABLE();
SPIx_MOSI_GPIO_CLK_ENABLE();*/
GpioSpi2InitTypeDef.Pin = GPIO_PIN_13;
GpioSpi2InitTypeDef.Mode = GPIO_MODE_AF_PP;
GpioSpi2InitTypeDef.Pull = GPIO_PULLDOWN;
GpioSpi2InitTypeDef.Speed = GPIO_SPEED_FAST;
GpioSpi2InitTypeDef.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GpioSpi2InitTypeDef);
/* SPI MISO GPIO pin configuration */
GpioSpi2InitTypeDef.Pull = GPIO_PULLUP;
GpioSpi2InitTypeDef.Pin = GPIO_PIN_14;
HAL_GPIO_Init(GPIOB, &GpioSpi2InitTypeDef);
/* SPI MOSI GPIO pin configuration */
GpioSpi2InitTypeDef.Pin = GPIO_PIN_15;
HAL_GPIO_Init(GPIOB, &GpioSpi2InitTypeDef);
Spi2Handle.Instance = SPI2;
Spi2Handle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
Spi2Handle.Init.Direction = SPI_DIRECTION_2LINES;
Spi2Handle.Init.CLKPolarity = SPI_POLARITY_HIGH;
Spi2Handle.Init.CLKPhase = SPI_PHASE_1EDGE;
Spi2Handle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
Spi2Handle.Init.CRCPolynomial = 7;
Spi2Handle.Init.DataSize = SPI_DATASIZE_8BIT;
Spi2Handle.Init.FirstBit = SPI_FIRSTBIT_MSB;
Spi2Handle.Init.NSS = SPI_NSS_SOFT;
Spi2Handle.Init.TIMode = SPI_TIMODE_DISABLED;
Spi2Handle.Init.Mode = SPI_MODE_SLAVE;
HAL_SPI_Init(&Spi2Handle);
}
void ClockEnable (void)
{
__GPIOA_CLK_ENABLE();
__GPIOB_CLK_ENABLE();
__GPIOC_CLK_ENABLE();
__GPIOD_CLK_ENABLE();
__GPIOE_CLK_ENABLE();
__GPIOF_CLK_ENABLE();
__GPIOG_CLK_ENABLE();
__GPIOH_CLK_ENABLE();
__ADC1_CLK_ENABLE();
__ADC2_CLK_ENABLE();
__DAC_CLK_ENABLE();
__FSMC_CLK_ENABLE();
__SPI2_CLK_ENABLE();
__DMA2_CLK_ENABLE();
__TIM1_CLK_ENABLE();
__TIM2_CLK_ENABLE();
}
/**
* Initialize Communication
* @param void No arguments
* @return void No return
*/
void Flash_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
__SPI2_CLK_ENABLE();
// Configure NSS
GPIO_InitStruct.Pin = GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
// Configure SPI GPIO
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
// Configure SPI
g_Flash_SpiHandle.Instance = SPI2;
g_Flash_SpiHandle.Init.Mode = SPI_MODE_MASTER;
g_Flash_SpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
g_Flash_SpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
g_Flash_SpiHandle.Init.CLKPolarity = SPI_POLARITY_HIGH;
g_Flash_SpiHandle.Init.CLKPhase = SPI_PHASE_2EDGE;
g_Flash_SpiHandle.Init.NSS = SPI_NSS_SOFT;
g_Flash_SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32;
g_Flash_SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
g_Flash_SpiHandle.Init.TIMode = SPI_TIMODE_DISABLED;
g_Flash_SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
g_Flash_SpiHandle.Init.CRCPolynomial = 10;
HAL_SPI_Init(&g_Flash_SpiHandle);
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI2)
{
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PB13 ------> SPI2_SCK
PB14 ------> SPI2_MISO
PB15 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
{
// Determine the SPI to use
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl);
MBED_ASSERT(obj->spi != (SPIName)NC);
// Enable SPI clock
#if defined(SPI1_BASE)
if (obj->spi == SPI_1) {
__SPI1_CLK_ENABLE();
}
#endif
#if defined(SPI2_BASE)
if (obj->spi == SPI_2) {
__SPI2_CLK_ENABLE();
}
#endif
#if defined(SPI3_BASE)
if (obj->spi == SPI_3) {
__SPI3_CLK_ENABLE();
}
#endif
// Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
// Save new values
obj->bits = SPI_DATASIZE_8BIT;
obj->cpol = SPI_POLARITY_LOW;
obj->cpha = SPI_PHASE_1EDGE;
#if defined(TARGET_STM32F334C8)
obj->br_presc = SPI_BAUDRATEPRESCALER_256;
#else
obj->br_presc = SPI_BAUDRATEPRESCALER_32; // 1 MHz (HSI) or 1.13 MHz (HSE)
#endif
obj->pin_miso = miso;
obj->pin_mosi = mosi;
obj->pin_sclk = sclk;
obj->pin_ssel = ssel;
if (ssel == NC) { // SW NSS Master mode
obj->mode = SPI_MODE_MASTER;
obj->nss = SPI_NSS_SOFT;
} else { // Slave
pinmap_pinout(ssel, PinMap_SPI_SSEL);
obj->mode = SPI_MODE_SLAVE;
obj->nss = SPI_NSS_HARD_INPUT;
}
init_spi(obj);
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI1)
{
/* USER CODE BEGIN SPI1_MspInit 0 */
/* USER CODE END SPI1_MspInit 0 */
/* Peripheral clock enable */
__SPI1_CLK_ENABLE();
/**SPI1 GPIO Configuration
PA5 ------> SPI1_SCK
PA6 ------> SPI1_MISO
PA7 ------> SPI1_MOSI
*/
GPIO_InitStruct.Pin = ACC_SCK_Pin|ACC_MISO_Pin|ACC_MOSI_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(SPI1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(SPI1_IRQn);
/* USER CODE BEGIN SPI1_MspInit 1 */
/* USER CODE END SPI1_MspInit 1 */
}
else if(hspi->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PB12 ------> SPI2_NSS
PB13 ------> SPI2_SCK
PB14 ------> SPI2_MISO
PB15 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = RF_SCK_Pin|RF_MOSI_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = RF_MISO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(RF_MISO_GPIO_Port, &GPIO_InitStruct);
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(SPI2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(SPI2_IRQn);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk)
{
// Determine the SPI to use
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName instance = (SPIName)pinmap_merge(spi_data, spi_sclk);
MBED_ASSERT(instance != (SPIName)NC);
// Enable SPI clock and set the right module number
switch(instance) {
case SPI_1:
__SPI1_CLK_ENABLE();
obj->spi.module = 0;
break;
case SPI_2:
__SPI2_CLK_ENABLE();
obj->spi.module = 1;
break;
case SPI_3:
__SPI3_CLK_ENABLE();
obj->spi.module = 2;
break;
#if MODULES_SIZE_SPI > 3
case SPI_4:
__SPI4_CLK_ENABLE();
obj->spi.module = 3;
break;
#endif
#if MODULES_SIZE_SPI > 4
case SPI_5:
__SPI5_CLK_ENABLE();
obj->spi.module = 4;
break;
#endif
#if MODULES_SIZE_SPI > 5
case SPI_6:
__SPI6_CLK_ENABLE();
obj->spi.module = 5;
break;
#endif
default:
break;
}
// Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
obj->spi.pin_miso = miso;
obj->spi.pin_mosi = mosi;
obj->spi.pin_sclk = sclk;
// initialize the handle for this master!
SPI_HandleTypeDef *handle = &SpiHandle[obj->spi.module];
handle->Instance = (SPI_TypeDef *)(instance);
handle->Init.Mode = SPI_MODE_MASTER;
handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
handle->Init.Direction = SPI_DIRECTION_2LINES;
handle->Init.CLKPhase = SPI_PHASE_1EDGE;
handle->Init.CLKPolarity = SPI_POLARITY_LOW;
handle->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
handle->Init.CRCPolynomial = 7;
handle->Init.DataSize = SPI_DATASIZE_8BIT;
handle->Init.FirstBit = SPI_FIRSTBIT_MSB;
handle->Init.NSS = SPI_NSS_SOFT;
handle->Init.TIMode = SPI_TIMODE_DISABLED;
DEBUG_PRINTF("SPI%u: Init\n", obj->spi.module+1);
init_spi(obj);
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI1)
{
/* USER CODE BEGIN SPI1_MspInit 0 */
/* USER CODE END SPI1_MspInit 0 */
/* Peripheral clock enable */
__SPI1_CLK_ENABLE();
/**SPI1 GPIO Configuration
PA5 ------> SPI1_SCK
PA6 ------> SPI1_MISO
PA7 ------> SPI1_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(SPI1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(SPI1_IRQn);
/* USER CODE BEGIN SPI1_MspInit 1 */
/* USER CODE END SPI1_MspInit 1 */
}
else if(hspi->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PB13 ------> SPI2_SCK
PB14 ------> SPI2_MISO
PB15 ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_14;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hspi->Instance==SPI2)
{
/* USER CODE BEGIN SPI2_MspInit 0 */
/* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__SPI2_CLK_ENABLE();
/**SPI2 GPIO Configuration
PC2 ------> SPI2_MISO
PC3 ------> SPI2_MOSI
PB10 ------> SPI2_SCK
*/
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral DMA init*/
hdma_spi2_tx.Instance = DMA1_Stream4;
hdma_spi2_tx.Init.Channel = DMA_CHANNEL_0;
hdma_spi2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_spi2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_spi2_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_spi2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_spi2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_spi2_tx.Init.Mode = DMA_NORMAL;
hdma_spi2_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_spi2_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_spi2_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_spi2_tx.Init.MemBurst = DMA_MBURST_SINGLE;
hdma_spi2_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
HAL_DMA_Init(&hdma_spi2_tx);
__HAL_LINKDMA(hspi,hdmatx,hdma_spi2_tx);
hdma_spi2_rx.Instance = DMA1_Stream3;
hdma_spi2_rx.Init.Channel = DMA_CHANNEL_0;
hdma_spi2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_spi2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_spi2_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_spi2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_spi2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_spi2_rx.Init.Mode = DMA_NORMAL;
hdma_spi2_rx.Init.Priority = DMA_PRIORITY_LOW;
hdma_spi2_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_spi2_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_spi2_rx.Init.MemBurst = DMA_MBURST_SINGLE;
hdma_spi2_rx.Init.PeriphBurst = DMA_PBURST_SINGLE;
HAL_DMA_Init(&hdma_spi2_rx);
__HAL_LINKDMA(hspi,hdmarx,hdma_spi2_rx);
/* USER CODE BEGIN SPI2_MspInit 1 */
/* USER CODE END SPI2_MspInit 1 */
}
}
void mrf24w_init(SPI_TypeDef *spi, GPIO_TypeDef *cs_gpio, uint16_t cs_pin, GPIO_TypeDef *reset_gpio, uint16_t reset_pin, GPIO_TypeDef *int_gpio, uint16_t int_pin)
{
GPIO_InitTypeDef GPIO_InitStruct = {};
m_securityType = WF_SECURITY_OPEN;
m_wirelessMode = WF_INFRASTRUCTURE;
wf_spi = spi;
wf_cs_port = cs_gpio; // CS: YELLOW wire, floating , PB12
wf_cs_pin = cs_pin;
wf_reset_port = reset_gpio; // RES: BLUE wire, floating , PB10
wf_reset_pin = reset_pin;
wf_int_port = int_gpio; // INT: ORANGE wire, pulled HIGH, PB11
wf_int_pin = int_pin;
/*
* Enable all GPIO port clocks
*/
__GPIOA_CLK_ENABLE();
__GPIOB_CLK_ENABLE();
__GPIOC_CLK_ENABLE();
__GPIOD_CLK_ENABLE();
__GPIOE_CLK_ENABLE();
__GPIOH_CLK_ENABLE();
// Interrupt pin -- PB11 ==> EXTI11
GPIO_InitStruct.Pin = wf_int_pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; // Still pulled up by a resistor for now.. (orange wire)
//GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(wf_int_port, &GPIO_InitStruct);
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
// Reset pin
GPIO_InitStruct.Pin = wf_reset_pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(wf_reset_port, &GPIO_InitStruct);
HAL_GPIO_WritePin(wf_reset_port, wf_reset_pin, GPIO_PIN_RESET); /* reset is active low */
// CS pin
GPIO_InitStruct.Pin = wf_cs_pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLDOWN; // Pulled low by break-out-board
HAL_GPIO_Init(wf_cs_port, &GPIO_InitStruct);
HAL_GPIO_WritePin(wf_cs_port, wf_cs_pin, GPIO_PIN_SET);
// SPI pin config
__SPI2_CLK_ENABLE();
GPIO_InitStruct.Pin = (GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15); // PB13: SCL
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; // PB14: MISO
GPIO_InitStruct.Speed = GPIO_SPEED_FAST; // PB15: MOSI
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
// SPI init
// Maximum SPI clock for MRF24WG is 25 MHz
hspi.Instance = wf_spi;
hspi.Init.Mode = SPI_MODE_MASTER;
hspi.Init.Direction = SPI_DIRECTION_2LINES;
hspi.Init.DataSize = SPI_DATASIZE_8BIT;
hspi.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi.Init.NSS = SPI_NSS_SOFT;
hspi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
hspi.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi.Init.TIMode = SPI_TIMODE_DISABLED;
hspi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
hspi.Init.CRCPolynomial = 0;
HAL_SPI_Init(&hspi);
}