/*****************************************************************************
Prototype : hal_sRF_SPI_Config
Description : none
Input : void
Output : None
Return Value :
Date : 2014/3/15
Author : Barry
*****************************************************************************/
void hal_gdflash_SPI_Config(void)
{
SPI_InitTypeDef SPI_InitStructure;
/*!< Deselect the RF: Chip Select high */
DGFLASH_CS_HIGH();
/* Disable sRF_SPI */
SPI_Cmd(GDFLASH_SPI, DISABLE);
/*!< SPI configuration */
SPI_I2S_DeInit(GDFLASH_SPI);
/*!< sRF_SPI Periph clock enable */
RCC_APB2PeriphClockCmd(DGFLASH_SPI_SCK , ENABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(GDFLASH_SPI, &SPI_InitStructure);
SPI_RxFIFOThresholdConfig(GDFLASH_SPI, SPI_RxFIFOThreshold_QF);
/*!< Enable the sRF_SPI */
SPI_Cmd(GDFLASH_SPI, ENABLE);
}
void SPI1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA ,ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_SPI1);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_Init(GPIOA, &GPIO_InitStructure);
SPI_I2S_DeInit(SPI1);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;//全双工
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;//8位数据模式
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;//空闲模式下SCK为1
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;//数据采样从第2个时间边沿开始
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;//NSS软件管理
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256;//波特率
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;//大端模式
SPI_InitStructure.SPI_CRCPolynomial = 7;//CRC多项式
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;//主机模式
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1, ENABLE);
}
void CMasterSPIHardware::init( SPI_TypeDef * hard_spi, const hard_SPI_config * config )
{
SPI_InitTypeDef SPI_InitStructure;
_spi = hard_spi;
if (hard_spi == SPI1)
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
else if (hard_spi == SPI2)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
SPI_I2S_DeInit(hard_spi);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = (config->num_of_bit - 1) << 8;
SPI_InitStructure.SPI_CPOL = config->CPOL;
SPI_InitStructure.SPI_CPHA = config->CPHA;
SPI_InitStructure.SPI_NSS = SPI_NSS_Hard;
SPI_InitStructure.SPI_BaudRatePrescaler = config->prescaller;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_Init(hard_spi, &SPI_InitStructure);
SPI_SSOutputCmd(hard_spi, ENABLE);
SPI_NSSPulseModeCmd(hard_spi, ENABLE);
/* Initialize the FIFO threshold */
SPI_RxFIFOThresholdConfig(hard_spi, SPI_RxFIFOThreshold_QF);
/* Enable the SPI peripheral */
SPI_Cmd(hard_spi, ENABLE);
}
/*******************************************************************************
* Function Name : I2S_Config
* Description : Configure the I2S Peripheral.
* Input : - Standard: I2S_Standard_Phillips, I2S_Standard_MSB or I2S_Standard_LSB
* - MCLKOutput: I2S_MCLKOutput_Enable or I2S_MCLKOutput_Disable
* - AudioFreq: I2S_AudioFreq_8K, I2S_AudioFreq_16K, I2S_AudioFreq_22K,
* I2S_AudioFreq_44K or I2S_AudioFreq_48K
* Output : None
* Return : None
*******************************************************************************/
static void I2S_Config(uint16_t Standard, uint16_t MCLKOutput, uint16_t AudioFreq)
{
I2S_InitTypeDef I2S_InitStructure;
/* Enable I2S2 APB1 clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
/* Deinitialize SPI2 peripheral */
SPI_I2S_DeInit(SPI2);
/* I2S2 peripheral configuration */
I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx;
I2S_InitStructure.I2S_Standard = Standard;
I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b;
I2S_InitStructure.I2S_MCLKOutput = MCLKOutput;
I2S_InitStructure.I2S_AudioFreq = AudioFreq;
I2S_InitStructure.I2S_CPOL = I2S_CPOL_High;
I2S_Init(SPI2, &I2S_InitStructure);
/* Disable the I2S2 TXE Interrupt */
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_TXE, DISABLE);
/* Enable the SPI2/I2S2 peripheral */
I2S_Cmd(SPI2, ENABLE);
printf("\n\r I2S peripheral Config finished");
}
/**
* @brief DeInitializes the LCD.
* @param None
* @retval None
*/
void LCD_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*!< LCD Display Off */
LCD_DisplayOff();
/*!< LCD_SPI disable */
SPI_Cmd(LCD_SPI, DISABLE);
/*!< LCD_SPI DeInit */
SPI_I2S_DeInit(LCD_SPI);
/*!< Disable SPI clock */
RCC_APB1PeriphClockCmd(LCD_SPI_CLK, DISABLE);
/* Configure NCS in Output Push-Pull mode */
GPIO_InitStructure.GPIO_Pin = LCD_NCS_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(LCD_NCS_GPIO_PORT, &GPIO_InitStructure);
/* Configure SPI pins: SCK, MISO and MOSI */
GPIO_InitStructure.GPIO_Pin = LCD_SPI_SCK_PIN;
GPIO_Init(LCD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LCD_SPI_MISO_PIN;
GPIO_Init(LCD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = LCD_SPI_MOSI_PIN;
GPIO_Init(LCD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief DeInitializes the peripherals used by the SPI FLASH driver.
* @param None
* @retval None
*/
void sFLASH_LowLevel_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*!< Disable the sFLASH_SPI ************************************************/
SPI_Cmd(sFLASH_SPI, DISABLE);
/*!< DeInitializes the sFLASH_SPI *******************************************/
SPI_I2S_DeInit(sFLASH_SPI);
/*!< sFLASH_SPI Periph clock disable ****************************************/
sFLASH_SPI_CLK_INIT(sFLASH_SPI_CLK, DISABLE);
/*!< Configure all pins used by the SPI as input floating *******************/
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_SCK_PIN;
GPIO_Init(sFLASH_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MISO_PIN;
GPIO_Init(sFLASH_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MOSI_PIN;
GPIO_Init(sFLASH_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = sFLASH_CS_PIN;
GPIO_Init(sFLASH_CS_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief DeInitializes the peripherals used by the SPI driver.
* @param none
* @retval none
*/
static void ADS1256_LowLevel_DeInit(void) {
GPIO_InitTypeDef GPIO_InitStructure;
/* Disable the ADS1256_SPI */
SPI_Cmd(ADS1256_SPI, DISABLE);
/* DeInitializes the ADS1256_SPI */
SPI_I2S_DeInit(ADS1256_SPI);
/* ADS1256_SPI Periph clock disable */
ADS1256_SPI_CLK_INIT(ADS1256_SPI_CLK, DISABLE);
/* Configure all pins used by the SPI as input floating */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = ADS1256_SPI_SCK_PIN;
GPIO_Init(ADS1256_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = ADS1256_SPI_MISO_PIN;
GPIO_Init(ADS1256_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = ADS1256_SPI_MOSI_PIN;
GPIO_Init(ADS1256_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = ADS1256_CS_PIN;
GPIO_Init(ADS1256_CS_GPIO_PORT, &GPIO_InitStructure);
}
//*----------------------------------------------------------------------------
//* Function Name : UiLcdHy28_SpiInit
//* Object :
//* Input Parameters :
//* Output Parameters :
//* Functions called :
//*----------------------------------------------------------------------------
void UiLcdHy28_SpiDeInit()
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_Cmd(SPI2, DISABLE);
SPI_I2S_DeInit(SPI2);
// Set as inputs
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
// SPI SCK pin configuration
GPIO_InitStructure.GPIO_Pin = LCD_SCK;
GPIO_Init(LCD_SCK_PIO, &GPIO_InitStructure);
// SPI MOSI pins configuration
GPIO_InitStructure.GPIO_Pin = LCD_MOSI;
GPIO_Init(LCD_MOSI_PIO, &GPIO_InitStructure);
// SPI MISO pins configuration
GPIO_InitStructure.GPIO_Pin = LCD_MISO;
GPIO_Init(LCD_MISO_PIO, &GPIO_InitStructure);
// Configure GPIO PIN for Chip select
GPIO_InitStructure.GPIO_Pin = LCD_CS;
GPIO_Init(LCD_CS_PIO, &GPIO_InitStructure);
}
void configureSPI(void)
{
// NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStruct;
SPI_I2S_DeInit(SPI2);
// Init pins
GPIO_InitStructure.GPIO_Pin = PIN_SCK | PIN_MOSI; // SCK,MOSI
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = PIN_MISO; // MISO
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
SPI_StructInit(&SPI_InitStruct);
SPI_InitStruct.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStruct.SPI_Mode = SPI_Mode_Master;
SPI_InitStruct.SPI_NSS = SPI_NSS_Soft;
SPI_InitStruct.SPI_DataSize = SPI_DataSize_16b;
SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
SPI_Init(SPI2, &SPI_InitStruct);
SPI_Cmd(SPI2, ENABLE);
}
/**
* @brief DeInitializes the SPI interface.
* @param None
* @retval None
*/
void sEE_SPI_LowLevel_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_Cmd(sEE_SPI, DISABLE); /* sEE_SPI disable */
SPI_I2S_DeInit(sEE_SPI); /* DeInitializes the sEE_SPI */
/* sEE_SPI Periph clock disable */
RCC_APB1PeriphClockCmd(sEE_SPI_CLK, DISABLE);
/* Configure sEE_SPI pins: SCK */
GPIO_InitStructure.GPIO_Pin = sEE_SPI_SCK_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(sEE_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
/* Configure sEE pins: MISO */
GPIO_InitStructure.GPIO_Pin = sEE_SPI_MISO_PIN;
GPIO_Init(sEE_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
/* Configure sEE pins: MOSI */
GPIO_InitStructure.GPIO_Pin = sEE_SPI_MOSI_PIN;
GPIO_Init(sEE_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
/* Configure sEE_CS_PIN pin: sEE Card CS pin */
GPIO_InitStructure.GPIO_Pin = sEE_SPI_CS_PIN;
GPIO_Init(sEE_SPI_CS_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief DeInitializes the peripherals used by the SPI FLASH driver.
* @param None
* @retval None
*/
void sFLASH_LowLevel_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*!< Disable the sFLASH_SPI */
SPI_Cmd(sFLASH_SPI, DISABLE);
/*!< DeInitializes the sFLASH_SPI */
SPI_I2S_DeInit(sFLASH_SPI);
/*!< sFLASH_SPI Periph clock disable */
RCC_APB2PeriphClockCmd(sFLASH_SPI_CLK, DISABLE);
/*!< Configure sFLASH_SPI pins: SCK */
GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_SCK_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(sFLASH_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure sFLASH_SPI pins: MISO */
GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MISO_PIN;
GPIO_Init(sFLASH_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure sFLASH_SPI pins: MOSI */
GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MOSI_PIN;
GPIO_Init(sFLASH_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure sFLASH_CS_PIN pin: sFLASH Card CS pin */
GPIO_InitStructure.GPIO_Pin = sFLASH_CS_PIN;
GPIO_Init(sFLASH_CS_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief DeInitializes the SD/SD communication.
* @param None
* @retval None
*/
void SD_LowLevel_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_Cmd(SD_SPI, DISABLE); /*!< SD_SPI disable */
SPI_I2S_DeInit(SD_SPI); /*!< DeInitializes the SD_SPI */
/*!< SD_SPI Periph clock disable */
RCC_APB1PeriphClockCmd(SD_SPI_CLK, DISABLE);
/*!< DeRemap SPI3 Pins */
GPIO_PinRemapConfig(GPIO_Remap_SPI3, DISABLE);
/*!< Configure SD_SPI pins: SCK */
GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure SD_SPI pins: MISO */
GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;
GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure SD_SPI pins: MOSI */
GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;
GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure SD_SPI_CS_PIN pin: SD Card CS pin */
GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;
GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStructure);
/*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief Initializes the Audio Codec audio interface (I2S)
* @note This function assumes that the I2S input clock (through PLL_R in
* Devices RevA/Z and through dedicated PLLI2S_R in Devices RevB/Y)
* is already configured and ready to be used.
* @param AudioFreq: Audio frequency to be configured for the I2S peripheral.
* @retval None.
*/
static void Codec_AudioInterface_Init(uint32_t AudioFreq)
{
/* Enable the CODEC_I2S peripheral clock */
RCC_APB1PeriphClockCmd(CODEC_I2S_CLK, ENABLE);
RCC->APB1ENR |= RCC_APB1Periph_SPI2 | RCC_APB1Periph_SPI3;
/* CODEC_I2S peripheral configuration */
SPI_I2S_DeInit(CODEC_I2S);
I2S_InitStructure.I2S_AudioFreq = AudioFreq;
I2S_InitStructure.I2S_Standard = I2S_STANDARD;
I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b;
I2S_InitStructure.I2S_CPOL = I2S_CPOL_Low;
I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx;
#ifdef CODEC_MCLK_ENABLED
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Enable;
#elif defined(CODEC_MCLK_DISABLED)
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable;
#else
#error "No selection for the MCLK output has been defined !"
#endif /* CODEC_MCLK_ENABLED */
/* Initialize the I2S peripheral with the structure above */
I2S_Init(CODEC_I2S, &I2S_InitStructure);
/* Enable the I2S DMA TX request */
SPI_I2S_DMACmd(CODEC_I2S, SPI_I2S_DMAReq_Tx, ENABLE);
/* The I2S peripheral will be enabled only in the EVAL_AUDIO_Play() function
or by user functions if DMA mode not enabled */
}
void setup_SPI(){
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
SPI_I2S_DeInit(SPI2);
SPI_InitTypeDef SPI_InitStructure;
SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx; //Two serial lines only
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; //8 bit transfers
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; //Idle high clock
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; //rising edge transfer
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; //Software SS
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8; //Use 10.5 MHz clock
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //MSB first
SPI_InitStructure.SPI_CRCPolynomial = 7; //Some value?
/* Initializes the SPI communication */
SPI_InitStructure.SPI_Mode = SPI_Mode_Master; //master mode
SPI_Init(SPI2, &SPI_InitStructure); //init
SPI_Cmd(SPI2, ENABLE);
}
void FRAM_sRF_SPI_Config(void)
{
SPI_InitTypeDef SPI_InitStructure;
RCC_APB2PeriphClockCmd(FRAM_SPI_CLK, ENABLE);
FRAM_CS_HIGH();
/* Disable sRF_SPI */
SPI_Cmd(FRAM_SPI, DISABLE);
/*!< SPI configuration */
SPI_I2S_DeInit(FRAM_SPI);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(FRAM_SPI, &SPI_InitStructure);
/*!< Enable the sRF_SPI */
SPI_Cmd(FRAM_SPI, ENABLE);
}
static void
platform_init_spi(void)
{
SPI_InitTypeDef SPI_InitStructure;
/* expecting platform_init_periphclk() to have already enabled SPI2 clock and GPIO clocks */
/* SPI configuration -------------------------------------------------------*/
SPI_I2S_DeInit(SPI2);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_32;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
//SPI_InitStructure.SPI_CRCPolynomial = 7;
/* Initializes the SPI communication */
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_Init(SPI2, &SPI_InitStructure);
/* Enable the Rx buffer not empty interrupt */
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_RXNE, ENABLE);
/* Enable the SPI peripheral */
SPI_Cmd(SPI2, ENABLE);
// platform_gpio_init(): NSS under software-gpio control
}
//Draws a single pixel
void ssd1306_SPI_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
/* Peripheral Clock Enable -------------------------------------------------*/
/* Enable the SPI clock */
SPIx_CLK_INIT(SPIx_CLK, ENABLE);
/* Enable GPIO clocks */
RCC_AHB1PeriphClockCmd(SPIx_SCK_GPIO_CLK | SPIx_MOSI_GPIO_CLK, ENABLE);
/* SPI GPIO Configuration --------------------------------------------------*/
/* Connect SPI pins to AF5 */
GPIO_PinAFConfig(SPIx_SCK_GPIO_PORT, SPIx_SCK_SOURCE, SPIx_SCK_AF);
GPIO_PinAFConfig(SPIx_MOSI_GPIO_PORT, SPIx_MOSI_SOURCE, SPIx_MOSI_AF);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
/* SPI SCK pin configuration */
GPIO_InitStructure.GPIO_Pin = SPIx_SCK_PIN;
GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStructure);
/* SPI MOSI pin configuration */
GPIO_InitStructure.GPIO_Pin = SPIx_MOSI_PIN;
GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStructure);
/* SPI configuration -------------------------------------------------------*/
SPI_I2S_DeInit(SPIx);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; // Clock Polarity ACTIVE state is High or Low
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; // Clock Phase Data is sampled on the first or second clock edge transition
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
/* Configure the Priority Group to 1 bit
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
Configure the SPI interrupt priority
NVIC_InitStructure.NVIC_IRQChannel = SPIx_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
*/
/* Initializes the SPI communication -----------------------------------------*/
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_Init(SPIx, &SPI_InitStructure);
/* The Data transfer is performed in the SPI interrupt routine----------------*/
/* Enable the SPI peripheral */
SPI_Cmd(SPIx, ENABLE);
}
/**
* This function will initial STM32 Radio board.
*/
void rt_hw_board_init(void)
{
/* Configure the system clocks */
SystemInit();
all_device_reset();
/* NVIC Configuration */
NVIC_Configuration();
/* Configure the SysTick */
SysTick_Config( SystemCoreClock / RT_TICK_PER_SECOND );
/* Console Initialization*/
rt_hw_usart_init();
rt_console_set_device("uart1");
rt_kprintf("\r\n\r\nSystemInit......\r\n");
/* SPI1 config */
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
/* Enable SPI1 Periph clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA
| RCC_APB2Periph_AFIO | RCC_APB2Periph_SPI1,
ENABLE);
/* Configure SPI1 pins: PA5-SCK, PA6-MISO and PA7-MOSI */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/*------------------------ SPI1 configuration ------------------------*/
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;//SPI_Direction_1Line_Tx;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;/* 72M/64=1.125M */
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_I2S_DeInit(SPI1);
SPI_Init(SPI1, &SPI_InitStructure);
/* Enable SPI_MASTER */
SPI_Cmd(SPI1, ENABLE);
SPI_CalculateCRC(SPI1, DISABLE);
if (rt_sem_init(&spi1_lock, "spi1lock", 1, RT_IPC_FLAG_FIFO) != RT_EOK)
{
rt_kprintf("init spi1 lock semaphore failed\n");
}
}
}
/**
* @brief Initializes the Audio Codec audio interface (I2S)
* @note This function assumes that the I2S input clock (through PLL_R in
* Devices RevA/Z and through dedicated PLLI2S_R in Devices RevB/Y)
* is already configured and ready to be used.
* @param AudioFreq: Audio frequency to be configured for the I2S peripheral.
* @retval None
*/
static void Codec_AudioInterface_Init(uint32_t AudioFreq)
{
I2S_InitTypeDef I2S_InitStructure;
DAC_InitTypeDef DAC_InitStructure;
/* Enable the CODEC_I2S peripheral clock */
RCC_APB1PeriphClockCmd(CODEC_I2S_CLK, ENABLE);
/* CODEC_I2S peripheral configuration */
SPI_I2S_DeInit(CODEC_I2S);
I2S_InitStructure.I2S_AudioFreq = AudioFreq;
I2S_InitStructure.I2S_Standard = I2S_STANDARD;
I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b;
I2S_InitStructure.I2S_CPOL = I2S_CPOL_Low;
#ifdef DAC_USE_I2S_DMA
if (CurrAudioInterface == AUDIO_INTERFACE_DAC)
{
I2S_InitStructure.I2S_Mode = I2S_Mode_MasterRx;
}
else
{
#else
I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx;
#endif
#ifdef DAC_USE_I2S_DMA
}
#endif /* DAC_USE_I2S_DMA */
#ifdef CODEC_MCLK_ENABLED
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Enable;
#elif defined(CODEC_MCLK_DISABLED)
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable;
#else
#error "No selection for the MCLK output has been defined !"
#endif /* CODEC_MCLK_ENABLED */
/* Initialize the I2S peripheral with the structure above */
I2S_Init(CODEC_I2S, &I2S_InitStructure);
/* Configure the DAC interface */
if (CurrAudioInterface == AUDIO_INTERFACE_DAC)
{
/* DAC Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
/* DAC channel1 Configuration */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(AUDIO_DAC_CHANNEL, &DAC_InitStructure);
/* Enable DAC Channel1 */
DAC_Cmd(AUDIO_DAC_CHANNEL, ENABLE);
}
/* The I2S peripheral will be enabled only in the EVAL_AUDIO_Play() function
or by user functions if DMA mode not enabled */
}
/**
* @brief this functions initializes the SPI in order to communicate with the 95HF device
* @param None
* @retval void
*/
static void drv95HF_InitializeSPI ( void )
{
SPI_I2S_DeInit(RFTRANS_95HF_SPI);
/* enables SPI and GPIO clocks */
drv95HF_RCCConfigSPI( );
/* configures GPIO A PA4-7 as SPI bus (NSS = HL) */
drv95HF_GPIOConfigSPI( );
drv95HF_StructureConfigSPI( );
}
void f3d_lcd_sd_interface_init(void) {
/* Pin Assignments
RS PB9 OUT
RESET PB10 OUT
BKL PB11 OUT
CS PB12 OUT
SCK PB13 AF - assigned to SPI2
MISO PB14 AF - assigned to SPI2
MOSI PB15 AF - assigned to SPI2
*/
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2 , ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
// Section 3.2 Alternate Function Pin Assignment SCK, MISO, MOSI
// Provide
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// Section 3.2 Pin configuration for SCK, MISO, MOSI
// Provide
GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_5); //Note- the GPIO_AF_x might be wrong
GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_5);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_5);
// Section 3.2 Pin Configuration for CS, RESET, RS, BKL
// Provide
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// Section 4.1 SPI2 configuration
// Provide
//SPI_InitTypeDef SPI_InitStructure;
SPI_I2S_DeInit(SPI2);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_Init(SPI2, &SPI_InitStructure);
SPI_RxFIFOThresholdConfig(SPI2, SPI_RxFIFOThreshold_QF);
SPI_Cmd(SPI2, ENABLE);
}
void SPIData_Init(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE );
RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA, ENABLE);
/* Use Alternate Functions for SPI pins */
GPIO_PinAFConfig( GPIOA, GPIO_PinSource5, GPIO_AF_SPI1 );
//L.GPIO_PinAFConfig( GPIOA, GPIO_PinSource6, GPIO_AF_SPI1 );
GPIO_PinAFConfig( GPIOA, GPIO_PinSource7, GPIO_AF_SPI1 );
GPIO_PinAFConfig( GPIOA, GPIO_PinSource4, GPIO_AF_SPI1 );
/* Setup pin types */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Pin = SPIDATA_CS_PIN;
GPIO_Init( GPIOA, &GPIO_InitStructure );
GPIO_InitStructure.GPIO_Pin = SPIDATA_SCK_PIN;
GPIO_Init( GPIOA, &GPIO_InitStructure );
GPIO_InitStructure.GPIO_Pin = SPIDATA_MOSI_PIN;
GPIO_Init( GPIOA, &GPIO_InitStructure );
SPI_I2S_DeInit(SPIDATA_PORT);
SPI_Cmd(SPIDATA_PORT, DISABLE);
SPI_StructInit(&SPI_InitStructure);
/*!< SPI configuration */
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_RxOnly; /* 数据方向：2线只接收 */
SPI_InitStructure.SPI_Mode = SPI_Mode_Slave; /* STM32的SPI工作模式 ：从机模式 */
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; /* 数据位长度 ： 8位 */
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; /* 时钟下降沿采样数据 */
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; /* 时钟的第1个边沿采样数据 */
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;//SPI_NSS_Hard; //SPI_NSS_Soft; /* 片选控制方式：软件控制 */
//L.SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2; /* 波特率预分频系数：4分频 */
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; /* 数据位传输次序：高位先传 */
SPI_InitStructure.SPI_CRCPolynomial = 7; /* CRC多项式寄存器，复位后为7。本例程不用 */
SPI_Init(SPIDATA_PORT, &SPI_InitStructure);
/* Enable the SPI peripheral */
SPI_I2S_DMACmd(SPIDATA_PORT,SPI_I2S_DMAReq_Rx,ENABLE);
SPI_Cmd(SPIDATA_PORT, ENABLE); /* enable SPI1 module */
SPIData_DMA_Init((u32)CodecRxBuffer);
}
void SPI1_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable the SPI clock */
SPIx_CLK_INIT(SPIx_CLK, ENABLE);
/* Enable GPIO clocks */
RCC_AHB1PeriphClockCmd(SPIx_SCK_GPIO_CLK | SPIx_MISO_GPIO_CLK | SPIx_MOSI_GPIO_CLK, ENABLE);
/* Connect SPI pins to AF5 */
GPIO_PinAFConfig(SPIx_SCK_GPIO_PORT, SPIx_SCK_SOURCE, SPIx_SCK_AF);
GPIO_PinAFConfig(SPIx_MOSI_GPIO_PORT, SPIx_MOSI_SOURCE, SPIx_MOSI_AF);
GPIO_PinAFConfig(SPIx_MISO_GPIO_PORT, SPIx_MISO_SOURCE, SPIx_MOSI_AF);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
/* SPI SCK pin configuration */
GPIO_InitStructure.GPIO_Pin = SPIx_SCK_PIN;
GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStructure);
/* SPI MOSI pin configuration */
GPIO_InitStructure.GPIO_Pin = SPIx_MOSI_PIN;
GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = SPIx_MISO_PIN;
GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStructure);
/* SPI configuration -------------------------------------------------------*/
SPI_I2S_DeInit(SPIx);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 0;
SPI_Init(SPIx, &SPI_InitStructure);
/* Configure the Priority Group to 1 bit */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
/* Configure the SPI interrupt priority */
NVIC_InitStructure.NVIC_IRQChannel = SPI1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/**
* @brief Restores the Audio Codec audio interface to its default state.
* @param None.
* @retval None.
*/
static void Codec_AudioInterface_DeInit(void)
{
/* Disable the CODEC_I2S peripheral (in case it hasn't already been disabled) */
I2S_Cmd(CODEC_I2S, DISABLE);
/* Deinitialize the CODEC_I2S peripheral */
SPI_I2S_DeInit(CODEC_I2S);
/* Disable the CODEC_I2S peripheral clock */
RCC_APB1PeriphClockCmd(CODEC_I2S_CLK, DISABLE);
}
void SpiDeInit( Spi_t *obj )
{
SPI_Cmd( obj->Spi, DISABLE );
SPI_I2S_DeInit( obj->Spi );
GpioInit( &obj->Mosi, obj->Mosi.pin, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
GpioInit( &obj->Miso, obj->Miso.pin, PIN_OUTPUT, PIN_PUSH_PULL, PIN_PULL_DOWN, 0 );
GpioInit( &obj->Sclk, obj->Sclk.pin, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
GpioInit( &obj->Nss, obj->Nss.pin, PIN_OUTPUT, PIN_PUSH_PULL, PIN_PULL_UP, 1 );
}
/*******************************************************************************
* Function Name : TP_Init
* Description : ADS7843 Port initialization
* Input : None
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
void TSDriver_Initialize(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStruct;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOD, ENABLE);
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_15 | GPIO_Pin_13 | GPIO_Pin_14;
GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_SPI2 ); //sclk 10 13
GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_SPI2 ); //mýso 11 14
GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_SPI2 ); //mosý 12 15
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
SPI_I2S_DeInit(SPI2 );
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; //SPI_CPOL_Low SPI_CPOL_High
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; //SPI_NSS_Hard //SPI_NSS_Soft
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256; //16
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI2, &SPI_InitStructure);
SPI_Cmd(SPI2, ENABLE);
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_12; // 3
GPIO_Init(GPIOB, &GPIO_InitStruct); // d
TP_CS(1);
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6; //Pin 6 is IRQ
GPIO_Init(GPIOD, &GPIO_InitStruct);
touch_interrupt_init();
}
/*******************************************************************************
* Function Name : I2S_Config
* Description : Initializes the I2S peripheral.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
static void I2S_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
I2S_InitTypeDef I2S_InitStructure;
/* Enable GPIOB, GPIOC and AFIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC |
RCC_APB2Periph_AFIO, ENABLE);
/* I2S2 SD, CK and WS pins configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* I2S2 MCK pin configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Enable I2S2 APB1 clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
/* Deinitialize SPI2 peripheral */
SPI_I2S_DeInit(SPI2);
/* I2S2 peripheral configuration */
I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx;
I2S_InitStructure.I2S_Standard = I2S_Standard_Phillips;
I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b;
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Enable;
#ifdef AUDIO_FREQ_96K
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_96k;
#elif defined (AUDIO_FREQ_48K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_48k;
#elif defined (AUDIO_FREQ_44K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_44k;
#elif defined (AUDIO_FREQ_32K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_32k;
#elif defined (AUDIO_FREQ_22K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_22k;
#elif defined (AUDIO_FREQ_16K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_16k;
#elif defined (AUDIO_FREQ_11K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_11k;
#elif defined (AUDIO_FREQ_8K)
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_8k;
#endif /* AUDIO_FREQ_96K */
I2S_InitStructure.I2S_CPOL = I2S_CPOL_Low;
I2S_Init(SPI2, &I2S_InitStructure);
/* Enable the SPI2/I2S2 peripheral */
I2S_Cmd(SPI2, ENABLE);
}
void deinitSpi2()
{
if( isInitial )
{
SPI_I2S_DeInit(SPI2);
DMA_DeInit(DMA1_Stream3);
DMA_DeInit(DMA1_Stream4);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, DISABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, DISABLE);
isInitial = false;
}
}
void spi_init (void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
// enable clock
RCC_APB2PeriphClockCmd (SPI_CLK, ENABLE);
// enable pin clocks
RCC_AHB1PeriphClockCmd (SCK_CLK, ENABLE);
RCC_AHB1PeriphClockCmd (MISO_CLK, ENABLE);
RCC_AHB1PeriphClockCmd (MOSI_CLK, ENABLE);
// set alternate functions
GPIO_PinAFConfig (SCK_PORT, SCK_SOURCE, SPI_AF);
GPIO_PinAFConfig (MISO_PORT, MISO_SOURCE, SPI_AF);
GPIO_PinAFConfig (MOSI_PORT, MOSI_SOURCE, SPI_AF);
// configure pins
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
// SCK
GPIO_InitStructure.GPIO_Pin = SCK_PIN;
GPIO_Init (SCK_PORT, &GPIO_InitStructure);
// MISO
GPIO_InitStructure.GPIO_Pin = MISO_PIN;
GPIO_Init (MISO_PORT, &GPIO_InitStructure);
// MOSI
GPIO_InitStructure.GPIO_Pin = MOSI_PIN;
GPIO_Init (MOSI_PORT, &GPIO_InitStructure);
SPI_I2S_DeInit (SPI);
// configure peripheral
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init (SPI, &SPI_InitStructure);
// enable SPI
SPI_Cmd (SPI, ENABLE);
}
static void l3gd20SpiInit(SPI_TypeDef *SPIx)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_AHBPeriphClockCmd(SPI1_SCK_CLK | SPI1_MISO_CLK | SPI1_MOSI_CLK, ENABLE);
GPIO_PinAFConfig(SPI1_GPIO, SPI1_SCK_PIN_SOURCE, GPIO_AF_5);
GPIO_PinAFConfig(SPI1_GPIO, SPI1_MISO_PIN_SOURCE, GPIO_AF_5);
GPIO_PinAFConfig(SPI1_GPIO, SPI1_MOSI_PIN_SOURCE, GPIO_AF_5);
// Init pins
GPIO_InitStructure.GPIO_Pin = SPI1_SCK_PIN | SPI1_MISO_PIN | SPI1_MOSI_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(SPI1_GPIO, &GPIO_InitStructure);
RCC_AHBPeriphClockCmd(L3GD20_CS_GPIO_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin = L3GD20_CS_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(L3GD20_CS_GPIO, &GPIO_InitStructure);
GPIO_SetBits(L3GD20_CS_GPIO, L3GD20_CS_PIN);
SPI_I2S_DeInit(SPIx);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4; // 36/4 = 9 MHz SPI Clock
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPIx, &SPI_InitStructure);
SPI_RxFIFOThresholdConfig(SPIx, SPI_RxFIFOThreshold_QF);
SPI_Cmd(SPIx, ENABLE);
}
