void SpiInit( Spi_t *obj, PinNames mosi, PinNames miso, PinNames sclk, PinNames nss )
{
__HAL_RCC_SPI1_FORCE_RESET( );
__HAL_RCC_SPI1_RELEASE_RESET( );
__HAL_RCC_SPI1_CLK_ENABLE( );
obj->Spi.Instance = ( SPI_TypeDef *) SPI1_BASE;
GpioInit( &obj->Mosi, mosi, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, GPIO_AF5_SPI1 );
GpioInit( &obj->Miso, miso, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, GPIO_AF5_SPI1 );
GpioInit( &obj->Sclk, sclk, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, GPIO_AF5_SPI1 );
if( nss != NC )
{
GpioInit( &obj->Nss, nss, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_UP, GPIO_AF5_SPI1 );
}
else
{
obj->Spi.Init.NSS = SPI_NSS_SOFT;
}
if( nss == NC )
{
SpiFormat( obj, SPI_DATASIZE_8BIT, SPI_POLARITY_LOW, SPI_PHASE_1EDGE, 0 );
}
else
{
SpiFormat( obj, SPI_DATASIZE_8BIT, SPI_POLARITY_LOW, SPI_PHASE_1EDGE, 1 );
}
SpiFrequency( obj, 10000000 );
HAL_SPI_Init( &obj->Spi );
}
void SpiInit( Spi_t *obj, PinNames mosi, PinNames miso, PinNames sclk, PinNames nss )
{
GpioInit( &obj->Mosi, mosi, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0 );
GpioInit( &obj->Miso, miso, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0 );
GpioInit( &obj->Sclk, sclk, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0 );
// TODO: Make independent of stm32l1xx_gpio.h
GPIO_PinAFConfig( obj->Mosi.port, ( obj->Mosi.pin & 0x0F ), GPIO_AF_SPI2 );
GPIO_PinAFConfig( obj->Miso.port, ( obj->Miso.pin & 0x0F ), GPIO_AF_SPI2 );
GPIO_PinAFConfig( obj->Sclk.port, ( obj->Sclk.pin & 0x0F ), GPIO_AF_SPI2 );
if( nss != NC )
{
GpioInit( &obj->Nss, nss, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_UP, 1 );
// TODO: Make independent of stm32l1xx_gpio.h
GPIO_PinAFConfig( obj->Nss.port, ( obj->Nss.pin & 0x0F ), GPIO_AF_SPI2 );
}
else
{
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
}
// Choose SPI interface according to the given pins
obj->Spi = ( SPI_TypeDef* )SPI2_BASE;
//RCC_APB2PeriphClockCmd( RCC_APB2Periph_SPI1, ENABLE );
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOB, ENABLE );
RCC_APB1PeriphClockCmd( RCC_APB1Periph_SPI2, ENABLE ); /* used for SPI2 */
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOA | RCC_AHBPeriph_GPIOB |
RCC_AHBPeriph_GPIOC, ENABLE );
if( nss == NC )
{
// 8 bits, CPOL = 0, CPHA = 0, MASTER
SpiFormat( obj, 8, 0, 0, 0 );
}
else
{
// 8 bits, CPOL = 0, CPHA = 0, SLAVE
SpiFormat( obj, 8, 0, 0, 1 );
}
SpiFrequency( obj, 10000000 );
SPI_Cmd( obj->Spi, ENABLE );
}
void SpiInit(Spi_t *obj, PinNames mosi, PinNames miso, PinNames sclk, PinNames nss)
{
/* Check if a proper channel was selected */
if (g_spiBase[obj->instance] == NULL) return;
obj->Spi = g_spiBase[obj->instance];
GpioInit(&obj->Mosi, mosi, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0);
GpioInit(&obj->Miso, miso, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0);
GpioInit(&obj->Sclk, sclk, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0);
if (nss != NC) GpioInit(&obj->Nss, nss, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 1);
/* Enable clock for SPI.*/
CLOCK_SYS_EnableSpiClock(obj->instance);
// Initialize the SPI module registers to default value, which disables the module
SPI_HAL_Init(obj->Spi);
// Set the SPI pin mode to normal mode
SPI_HAL_SetPinMode(obj->Spi, kSpiPinMode_Normal);
#if FSL_FEATURE_SPI_FIFO_SIZE
if (g_spiFifoSize[obj->instance] != 0)
{
// If SPI module contains a FIFO, disable it and set watermarks to half full/empty
SPI_HAL_SetFifoMode(obj->Spi, false, kSpiTxFifoOneHalfEmpty, kSpiRxFifoOneHalfFull);
}
#endif
if (!obj->isSlave) {
// 8 bits, CPOL = 0, CPHA = 0, MASTER
SpiFormat(obj, 8, 0, 0, 0);
} else {
// 8 bits, CPOL = 0, CPHA = 0, SLAVE
SpiFormat(obj, 8, 0, 0, 1);
}
SpiFrequency(obj, 10000000);
/* Enable Spi module */
SPI_HAL_Enable(obj->Spi);
}
void SpiInit(Spi_t *obj, PinNames mosi, PinNames miso, PinNames sclk, PinNames nss)
{
/* Check if a proper channel was selected */
if (g_dspiBase[obj->instance] == NULL) return;
obj->Spi = g_dspiBase[obj->instance];
GpioInit(&obj->Mosi, mosi, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0);
GpioInit(&obj->Miso, miso, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0);
GpioInit(&obj->Sclk, sclk, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0);
if (nss != NC) GpioInit(&obj->Nss, nss, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_UP, 1);
if (!obj->isSlave) {
// Enable DSPI clock.
CLOCK_SYS_EnableSpiClock(obj->instance);
// Initialize the DSPI module registers to default value, which disables the module
DSPI_HAL_Init(obj->Spi);
// Set to master mode.
DSPI_HAL_SetMasterSlaveMode(obj->Spi, kDspiMaster);
// Configure for continuous SCK operation
DSPI_HAL_SetContinuousSckCmd(obj->Spi, false);
// Configure for peripheral chip select polarity
DSPI_HAL_SetPcsPolarityMode(obj->Spi, kDspiPcs0, kDspiPcs_ActiveLow);
// Disable FIFO operation.
DSPI_HAL_SetFifoCmd(obj->Spi, false, false);
// Initialize the configurable delays: PCS-to-SCK, prescaler = 0, scaler = 1
DSPI_HAL_SetDelay(obj->Spi, kDspiCtar0, 0, 1, kDspiPcsToSck);
// DSPI system enable
DSPI_HAL_Enable(obj->Spi);
// 8 bits, CPOL = 0, CPHA = 0, MASTER
SpiFormat(obj, 8, 0, 0, 0);
} else {
// 8 bits, CPOL = 0, CPHA = 0, SLAVE
SpiFormat(obj, 8, 0, 0, 1);
}
SpiFrequency(obj, 10000000);
}
