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library: spi: enhancement #1488

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Merged
fpistm merged 2 commits into from
Sep 6, 2021
Merged

library: spi: enhancement #1488

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8569eac
library: spi: ensure peripheral reset
fpistm Sep 3, 2021
3ae7483
library: spi: set MasterKeepIOState to avoid glitches
fpistm Sep 3, 2021
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15 changes: 15 additions & 0 deletions libraries/SPI/src/utility/spi_com.c
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Original file line number Diff line number Diff line change
Expand Up @@ -288,6 +288,9 @@ void spi_init(spi_t *obj, uint32_t speed, spi_mode_e mode, uint8_t msb)
defined(STM32WBxx) || defined(STM32MP1xx)
handle->Init.NSSPMode = SPI_NSS_PULSE_DISABLE;
#endif
#ifdef SPI_MASTER_KEEP_IO_STATE_ENABLE
handle->Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_ENABLE; /* Recommanded setting to avoid glitches */
#endif

/* Configure SPI GPIO pins */
pinmap_pinout(obj->pin_mosi, PinMap_SPI_MOSI);
Expand All @@ -305,36 +308,48 @@ void spi_init(spi_t *obj, uint32_t speed, spi_mode_e mode, uint8_t msb)
// Enable SPI clock
if (handle->Instance == SPI1) {
__HAL_RCC_SPI1_CLK_ENABLE();
__HAL_RCC_SPI1_FORCE_RESET();
__HAL_RCC_SPI1_RELEASE_RESET();
}
#endif

#if defined SPI2_BASE
if (handle->Instance == SPI2) {
__HAL_RCC_SPI2_CLK_ENABLE();
__HAL_RCC_SPI2_FORCE_RESET();
__HAL_RCC_SPI2_RELEASE_RESET();
}
#endif

#if defined SPI3_BASE
if (handle->Instance == SPI3) {
__HAL_RCC_SPI3_CLK_ENABLE();
__HAL_RCC_SPI3_FORCE_RESET();
__HAL_RCC_SPI3_RELEASE_RESET();
}
#endif

#if defined SPI4_BASE
if (handle->Instance == SPI4) {
__HAL_RCC_SPI4_CLK_ENABLE();
__HAL_RCC_SPI4_FORCE_RESET();
__HAL_RCC_SPI4_RELEASE_RESET();
}
#endif

#if defined SPI5_BASE
if (handle->Instance == SPI5) {
__HAL_RCC_SPI5_CLK_ENABLE();
__HAL_RCC_SPI5_FORCE_RESET();
__HAL_RCC_SPI5_RELEASE_RESET();
}
#endif

#if defined SPI6_BASE
if (handle->Instance == SPI6) {
__HAL_RCC_SPI6_CLK_ENABLE();
__HAL_RCC_SPI6_FORCE_RESET();
__HAL_RCC_SPI6_RELEASE_RESET();
}
#endif

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