[STM32F4 HAL] Avoid SPI spurious interrupt

Laurent MEUNIER · Laurent MEUNIER · commit 04fe4d258870 · 2016-09-20T19:25:25.000+02:00
If SPI TXE is not disabled at the end of transfer, MBED application
callback that is registered for transfer completion might be called twice
diff --git a/hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_spi.c b/hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_spi.c
@@ -2450,6 +2450,7 @@ static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
       SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
     }
 #endif /* USE_SPI_CRC */
+    __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));
     SPI_CloseTx_ISR(hspi);
   }
 }
@@ -2476,6 +2477,7 @@ static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
       SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
     }
 #endif /* USE_SPI_CRC */
+    __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));
     SPI_CloseTx_ISR(hspi);
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -2450,6 +2450,7 @@ static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi)`
`2450`	`2450`	`SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);`
`2451`	`2451`	`}`
`2452`	`2452`	`#endif /* USE_SPI_CRC */`
	`2453`	`+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));`
`2453`	`2454`	`SPI_CloseTx_ISR(hspi);`
`2454`	`2455`	`}`
`2455`	`2456`	`}`
`@@ -2476,6 +2477,7 @@ static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi)`
`2476`	`2477`	`SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);`
`2477`	`2478`	`}`
`2478`	`2479`	`#endif /* USE_SPI_CRC */`
	`2480`	`+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));`
`2479`	`2481`	`SPI_CloseTx_ISR(hspi);`
`2480`	`2482`	`}`
`2481`	`2483`	`}`