void HAL_SPI_Begin(HAL_SPI_Interface spi, uint16_t pin)
{
if (pin==SPI_DEFAULT_SS)
pin = spiMap[spi].SPI_SS_Pin;
STM32_Pin_Info* PIN_MAP = HAL_Pin_Map();
/* Enable SPI Clock */
*spiMap[spi].SPI_RCC_APBRegister |= spiMap[spi].SPI_RCC_APBClockEnable;
/* Connect SPI pins to AF */
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_SCK_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_SCK_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_MISO_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_MISO_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_MOSI_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_MOSI_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
HAL_Pin_Mode(spiMap[spi].SPI_SCK_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(spiMap[spi].SPI_MISO_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(spiMap[spi].SPI_MOSI_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(pin, OUTPUT);
HAL_GPIO_Write(pin, Bit_SET);//HIGH
/* SPI configuration */
spiState[spi].SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
spiState[spi].SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
spiState[spi].SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
if(spiState[spi].SPI_Data_Mode_Set != true)
{
//Default: SPI_MODE3
spiState[spi].SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
spiState[spi].SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
}
spiState[spi].SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
if(spiState[spi].SPI_Clock_Divider_Set != true)
{
/* Defaults to 15Mbit/s on SPI1, SPI2 and SPI3 */
if(spi == HAL_SPI_INTERFACE1)
{
spiState[spi].SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;//60/4=15
}
else
{
spiState[spi].SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;//30/2=15
}
}
if(spiState[spi].SPI_Bit_Order_Set != true)
{
//Default: MSBFIRST
spiState[spi].SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
}
spiState[spi].SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(spiMap[spi].SPI_Peripheral, &spiState[spi].SPI_InitStructure);
SPI_Cmd(spiMap[spi].SPI_Peripheral, ENABLE);
spiState[spi].SPI_Enabled = true;
}
void ElectronSerialPipe::rxPause(void)
{
#if USE_USART3_HARDWARE_FLOW_CONTROL_RTS_CTS
pause_ = true;
HAL_Pin_Mode(RTS_UC, OUTPUT);
HAL_GPIO_Write(RTS_UC, 1);
USART_ITConfig(USART3, USART_IT_RXNE, DISABLE);
#endif
}
/*
* @brief Sets a GPIO pin to HIGH or LOW.
*/
void digitalWrite(pin_t pin, uint8_t value)
{
PinMode mode = HAL_Get_Pin_Mode(pin);
if (mode==PIN_MODE_NONE || is_input_mode(mode))
return;
// Safety check
if( !pinAvailable(pin) ) {
return;
}
HAL_GPIO_Write(pin, value);
}
void HAL_SPI_Begin_Ext(HAL_SPI_Interface spi, SPI_Mode mode, uint16_t pin, void* reserved)
{
if (pin == SPI_DEFAULT_SS)
pin = spiMap[spi].SPI_SS_Pin;
spiState[spi].SPI_SS_Pin = pin;
STM32_Pin_Info* PIN_MAP = HAL_Pin_Map();
spiState[spi].mode = mode;
/* Enable SPI Clock */
*spiMap[spi].SPI_RCC_APBRegister |= spiMap[spi].SPI_RCC_APBClockEnable;
*spiMap[spi].SPI_RCC_AHBRegister |= spiMap[spi].SPI_RCC_AHBClockEnable;
/* Connect SPI pins to AF */
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_SCK_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_SCK_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_MISO_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_MISO_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_MOSI_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_MOSI_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
HAL_Pin_Mode(spiMap[spi].SPI_SCK_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(spiMap[spi].SPI_MISO_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(spiMap[spi].SPI_MOSI_Pin, AF_OUTPUT_PUSHPULL);
if (mode == SPI_MODE_MASTER)
{
HAL_Pin_Mode(pin, OUTPUT);
HAL_GPIO_Write(pin, Bit_SET);//HIGH
}
else
{
HAL_Pin_Mode(pin, INPUT);
}
/* SPI configuration */
spiState[spi].SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
spiState[spi].SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
spiState[spi].SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
if(spiState[spi].SPI_Data_Mode_Set != true)
{
//Default: SPI_MODE3
spiState[spi].SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
spiState[spi].SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
}
spiState[spi].SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
if(spiState[spi].SPI_Clock_Divider_Set != true)
{
/* Defaults to 15Mbit/s on SPI1, SPI2 and SPI3 */
if(spi == HAL_SPI_INTERFACE1)
{
spiState[spi].SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;//60/4=15
}
else
{
spiState[spi].SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;//30/2=15
}
}
if(spiState[spi].SPI_Bit_Order_Set != true)
{
//Default: MSBFIRST
spiState[spi].SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
}
spiState[spi].SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(spiMap[spi].SPI_Peripheral, &spiState[spi].SPI_InitStructure);
if (mode == SPI_MODE_SLAVE)
{
/* Attach interrupt to slave select pin */
HAL_InterruptExtraConfiguration irqConf = {0};
irqConf.size = sizeof(irqConf);
irqConf.IRQChannelPreemptionPriority = 1;
irqConf.IRQChannelSubPriority = 0;
HAL_Interrupts_Attach(pin, &HAL_SPI_SS_Handler, (void*)(spi), CHANGE, &irqConf);
/* Switch to slave mode */
spiState[spi].SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
SPI_Init(spiMap[spi].SPI_Peripheral, &spiState[spi].SPI_InitStructure);
}
if (mode == SPI_MODE_MASTER)
{
/* SPI peripheral should not be enabled in Slave mode until the device is selected */
SPI_Cmd(spiMap[spi].SPI_Peripheral, ENABLE);
}
spiState[spi].SPI_Enabled = true;
}