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- #if defined(USE_FULL_LL_DRIVER)
- #include "stm32g0xx_ll_spi.h"
- #include "stm32g0xx_ll_bus.h"
- #include "stm32g0xx_ll_rcc.h"
- #ifdef USE_FULL_ASSERT
- #include "stm32_assert.h"
- #else
- #define assert_param(expr) ((void)0U)
- #endif
- #if defined (SPI1) || defined (SPI2) || defined (SPI3)
- #define SPI_CR1_CLEAR_MASK (SPI_CR1_CPHA | SPI_CR1_CPOL | SPI_CR1_MSTR | \
- SPI_CR1_BR | SPI_CR1_LSBFIRST | SPI_CR1_SSI | \
- SPI_CR1_SSM | SPI_CR1_RXONLY | SPI_CR1_CRCL | \
- SPI_CR1_CRCNEXT | SPI_CR1_CRCEN | SPI_CR1_BIDIOE | \
- SPI_CR1_BIDIMODE)
- #define IS_LL_SPI_TRANSFER_DIRECTION(__VALUE__) (((__VALUE__) == LL_SPI_FULL_DUPLEX) \
- || ((__VALUE__) == LL_SPI_SIMPLEX_RX) \
- || ((__VALUE__) == LL_SPI_HALF_DUPLEX_RX) \
- || ((__VALUE__) == LL_SPI_HALF_DUPLEX_TX))
- #define IS_LL_SPI_MODE(__VALUE__) (((__VALUE__) == LL_SPI_MODE_MASTER) \
- || ((__VALUE__) == LL_SPI_MODE_SLAVE))
- #define IS_LL_SPI_DATAWIDTH(__VALUE__) (((__VALUE__) == LL_SPI_DATAWIDTH_4BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_5BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_6BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_7BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_8BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_9BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_10BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_11BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_12BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_13BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_14BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_15BIT) \
- || ((__VALUE__) == LL_SPI_DATAWIDTH_16BIT))
- #define IS_LL_SPI_POLARITY(__VALUE__) (((__VALUE__) == LL_SPI_POLARITY_LOW) \
- || ((__VALUE__) == LL_SPI_POLARITY_HIGH))
- #define IS_LL_SPI_PHASE(__VALUE__) (((__VALUE__) == LL_SPI_PHASE_1EDGE) \
- || ((__VALUE__) == LL_SPI_PHASE_2EDGE))
- #define IS_LL_SPI_NSS(__VALUE__) (((__VALUE__) == LL_SPI_NSS_SOFT) \
- || ((__VALUE__) == LL_SPI_NSS_HARD_INPUT) \
- || ((__VALUE__) == LL_SPI_NSS_HARD_OUTPUT))
- #define IS_LL_SPI_BAUDRATE(__VALUE__) (((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV2) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV4) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV8) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV16) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV32) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV64) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV128) \
- || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV256))
- #define IS_LL_SPI_BITORDER(__VALUE__) (((__VALUE__) == LL_SPI_LSB_FIRST) \
- || ((__VALUE__) == LL_SPI_MSB_FIRST))
- #define IS_LL_SPI_CRCCALCULATION(__VALUE__) (((__VALUE__) == LL_SPI_CRCCALCULATION_ENABLE) \
- || ((__VALUE__) == LL_SPI_CRCCALCULATION_DISABLE))
- #define IS_LL_SPI_CRC_POLYNOMIAL(__VALUE__) ((__VALUE__) >= 0x1U)
- ErrorStatus LL_SPI_DeInit(SPI_TypeDef *SPIx)
- {
- ErrorStatus status = ERROR;
-
- assert_param(IS_SPI_ALL_INSTANCE(SPIx));
- #if defined(SPI1)
- if (SPIx == SPI1)
- {
-
- LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI1);
-
- LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI1);
- status = SUCCESS;
- }
- #endif
- #if defined(SPI2)
- if (SPIx == SPI2)
- {
-
- LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI2);
-
- LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI2);
- status = SUCCESS;
- }
- #endif
- #if defined(SPI3)
- if (SPIx == SPI3)
- {
-
- LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI3);
-
- LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI3);
- status = SUCCESS;
- }
- #endif
- return status;
- }
- ErrorStatus LL_SPI_Init(SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct)
- {
- ErrorStatus status = ERROR;
-
- assert_param(IS_SPI_ALL_INSTANCE(SPIx));
-
- assert_param(IS_LL_SPI_TRANSFER_DIRECTION(SPI_InitStruct->TransferDirection));
- assert_param(IS_LL_SPI_MODE(SPI_InitStruct->Mode));
- assert_param(IS_LL_SPI_DATAWIDTH(SPI_InitStruct->DataWidth));
- assert_param(IS_LL_SPI_POLARITY(SPI_InitStruct->ClockPolarity));
- assert_param(IS_LL_SPI_PHASE(SPI_InitStruct->ClockPhase));
- assert_param(IS_LL_SPI_NSS(SPI_InitStruct->NSS));
- assert_param(IS_LL_SPI_BAUDRATE(SPI_InitStruct->BaudRate));
- assert_param(IS_LL_SPI_BITORDER(SPI_InitStruct->BitOrder));
- assert_param(IS_LL_SPI_CRCCALCULATION(SPI_InitStruct->CRCCalculation));
- if (LL_SPI_IsEnabled(SPIx) == 0x00000000U)
- {
-
- MODIFY_REG(SPIx->CR1,
- SPI_CR1_CLEAR_MASK,
- SPI_InitStruct->TransferDirection | SPI_InitStruct->Mode |
- SPI_InitStruct->ClockPolarity | SPI_InitStruct->ClockPhase |
- SPI_InitStruct->NSS | SPI_InitStruct->BaudRate |
- SPI_InitStruct->BitOrder | SPI_InitStruct->CRCCalculation);
-
- MODIFY_REG(SPIx->CR2,
- SPI_CR2_DS | SPI_CR2_SSOE,
- SPI_InitStruct->DataWidth | (SPI_InitStruct->NSS >> 16U));
-
- if (SPI_InitStruct->CRCCalculation == LL_SPI_CRCCALCULATION_ENABLE)
- {
- assert_param(IS_LL_SPI_CRC_POLYNOMIAL(SPI_InitStruct->CRCPoly));
- LL_SPI_SetCRCPolynomial(SPIx, SPI_InitStruct->CRCPoly);
- }
- status = SUCCESS;
- }
- #if defined (SPI_I2S_SUPPORT)
-
- CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD);
- #endif
- return status;
- }
- void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct)
- {
-
- SPI_InitStruct->TransferDirection = LL_SPI_FULL_DUPLEX;
- SPI_InitStruct->Mode = LL_SPI_MODE_SLAVE;
- SPI_InitStruct->DataWidth = LL_SPI_DATAWIDTH_8BIT;
- SPI_InitStruct->ClockPolarity = LL_SPI_POLARITY_LOW;
- SPI_InitStruct->ClockPhase = LL_SPI_PHASE_1EDGE;
- SPI_InitStruct->NSS = LL_SPI_NSS_HARD_INPUT;
- SPI_InitStruct->BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV2;
- SPI_InitStruct->BitOrder = LL_SPI_MSB_FIRST;
- SPI_InitStruct->CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;
- SPI_InitStruct->CRCPoly = 7U;
- }
- #if defined(SPI_I2S_SUPPORT)
- #define I2S_I2SCFGR_CLEAR_MASK (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN | \
- SPI_I2SCFGR_CKPOL | SPI_I2SCFGR_I2SSTD | \
- SPI_I2SCFGR_I2SCFG | SPI_I2SCFGR_I2SMOD )
- #define I2S_I2SPR_CLEAR_MASK 0x0002U
- #define IS_LL_I2S_DATAFORMAT(__VALUE__) (((__VALUE__) == LL_I2S_DATAFORMAT_16B) \
- || ((__VALUE__) == LL_I2S_DATAFORMAT_16B_EXTENDED) \
- || ((__VALUE__) == LL_I2S_DATAFORMAT_24B) \
- || ((__VALUE__) == LL_I2S_DATAFORMAT_32B))
- #define IS_LL_I2S_CPOL(__VALUE__) (((__VALUE__) == LL_I2S_POLARITY_LOW) \
- || ((__VALUE__) == LL_I2S_POLARITY_HIGH))
- #define IS_LL_I2S_STANDARD(__VALUE__) (((__VALUE__) == LL_I2S_STANDARD_PHILIPS) \
- || ((__VALUE__) == LL_I2S_STANDARD_MSB) \
- || ((__VALUE__) == LL_I2S_STANDARD_LSB) \
- || ((__VALUE__) == LL_I2S_STANDARD_PCM_SHORT) \
- || ((__VALUE__) == LL_I2S_STANDARD_PCM_LONG))
- #define IS_LL_I2S_MODE(__VALUE__) (((__VALUE__) == LL_I2S_MODE_SLAVE_TX) \
- || ((__VALUE__) == LL_I2S_MODE_SLAVE_RX) \
- || ((__VALUE__) == LL_I2S_MODE_MASTER_TX) \
- || ((__VALUE__) == LL_I2S_MODE_MASTER_RX))
- #define IS_LL_I2S_MCLK_OUTPUT(__VALUE__) (((__VALUE__) == LL_I2S_MCLK_OUTPUT_ENABLE) \
- || ((__VALUE__) == LL_I2S_MCLK_OUTPUT_DISABLE))
- #define IS_LL_I2S_AUDIO_FREQ(__VALUE__) ((((__VALUE__) >= LL_I2S_AUDIOFREQ_8K) \
- && ((__VALUE__) <= LL_I2S_AUDIOFREQ_192K)) \
- || ((__VALUE__) == LL_I2S_AUDIOFREQ_DEFAULT))
- #define IS_LL_I2S_PRESCALER_LINEAR(__VALUE__) ((__VALUE__) >= 0x2U)
- #define IS_LL_I2S_PRESCALER_PARITY(__VALUE__) (((__VALUE__) == LL_I2S_PRESCALER_PARITY_EVEN) \
- || ((__VALUE__) == LL_I2S_PRESCALER_PARITY_ODD))
- ErrorStatus LL_I2S_DeInit(SPI_TypeDef *SPIx)
- {
- return LL_SPI_DeInit(SPIx);
- }
- ErrorStatus LL_I2S_Init(SPI_TypeDef *SPIx, LL_I2S_InitTypeDef *I2S_InitStruct)
- {
- uint32_t i2sdiv = 2U;
- uint32_t i2sodd = 0U;
- uint32_t packetlength = 1U;
- uint32_t tmp;
- LL_RCC_ClocksTypeDef rcc_clocks;
- uint32_t sourceclock;
- ErrorStatus status = ERROR;
-
- assert_param(IS_I2S_ALL_INSTANCE(SPIx));
- assert_param(IS_LL_I2S_MODE(I2S_InitStruct->Mode));
- assert_param(IS_LL_I2S_STANDARD(I2S_InitStruct->Standard));
- assert_param(IS_LL_I2S_DATAFORMAT(I2S_InitStruct->DataFormat));
- assert_param(IS_LL_I2S_MCLK_OUTPUT(I2S_InitStruct->MCLKOutput));
- assert_param(IS_LL_I2S_AUDIO_FREQ(I2S_InitStruct->AudioFreq));
- assert_param(IS_LL_I2S_CPOL(I2S_InitStruct->ClockPolarity));
- if (LL_I2S_IsEnabled(SPIx) == 0x00000000U)
- {
-
-
- MODIFY_REG(SPIx->I2SCFGR,
- I2S_I2SCFGR_CLEAR_MASK,
- I2S_InitStruct->Mode | I2S_InitStruct->Standard |
- I2S_InitStruct->DataFormat | I2S_InitStruct->ClockPolarity |
- SPI_I2SCFGR_I2SMOD);
-
-
- if (I2S_InitStruct->AudioFreq != LL_I2S_AUDIOFREQ_DEFAULT)
- {
-
- if (I2S_InitStruct->DataFormat != LL_I2S_DATAFORMAT_16B)
- {
-
- packetlength = 2U;
- }
-
- LL_RCC_GetSystemClocksFreq(&rcc_clocks);
-
- sourceclock = rcc_clocks.SYSCLK_Frequency;
-
- if (I2S_InitStruct->MCLKOutput == LL_I2S_MCLK_OUTPUT_ENABLE)
- {
-
- tmp = (((((sourceclock / 256U) * 10U) / I2S_InitStruct->AudioFreq)) + 5U);
- }
- else
- {
-
- tmp = (((((sourceclock / (32U * packetlength)) * 10U) / I2S_InitStruct->AudioFreq)) + 5U);
- }
-
- tmp = tmp / 10U;
-
- i2sodd = (tmp & (uint16_t)0x0001U);
-
- i2sdiv = ((tmp - i2sodd) / 2U);
-
- i2sodd = (i2sodd << 8U);
- }
-
- if ((i2sdiv < 2U) || (i2sdiv > 0xFFU))
- {
-
- i2sdiv = 2U;
- i2sodd = 0U;
- }
-
- WRITE_REG(SPIx->I2SPR, i2sdiv | i2sodd | I2S_InitStruct->MCLKOutput);
- status = SUCCESS;
- }
- return status;
- }
- void LL_I2S_StructInit(LL_I2S_InitTypeDef *I2S_InitStruct)
- {
-
- I2S_InitStruct->Mode = LL_I2S_MODE_SLAVE_TX;
- I2S_InitStruct->Standard = LL_I2S_STANDARD_PHILIPS;
- I2S_InitStruct->DataFormat = LL_I2S_DATAFORMAT_16B;
- I2S_InitStruct->MCLKOutput = LL_I2S_MCLK_OUTPUT_DISABLE;
- I2S_InitStruct->AudioFreq = LL_I2S_AUDIOFREQ_DEFAULT;
- I2S_InitStruct->ClockPolarity = LL_I2S_POLARITY_LOW;
- }
- void LL_I2S_ConfigPrescaler(SPI_TypeDef *SPIx, uint32_t PrescalerLinear, uint32_t PrescalerParity)
- {
-
- assert_param(IS_I2S_ALL_INSTANCE(SPIx));
- assert_param(IS_LL_I2S_PRESCALER_LINEAR(PrescalerLinear));
- assert_param(IS_LL_I2S_PRESCALER_PARITY(PrescalerParity));
-
- MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_I2SDIV | SPI_I2SPR_ODD, PrescalerLinear | (PrescalerParity << 8U));
- }
- #endif
- #endif
- #endif
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