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stm32 spi - IRQ management 

Disable IRQ when transfer is finished.
Also clear pending IRQ after they have been disabled.
pull/3288/head
Laurent MEUNIER 2016-11-17 16:29:09 +01:00
parent 64a037cc8d
commit 79af576051
1 changed files with 4 additions and 1 deletions
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5
targets/TARGET_STM/stm_spi_api.c
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@ -434,8 +434,8 @@ static int spi_master_start_asynch_transfer(spi_t *obj, transfer_type_t transfer
// enable the interrupt
IRQn_Type irq_n = spiobj->spiIRQ;
NVIC_ClearPendingIRQ(irq_n);
NVIC_DisableIRQ(irq_n);
NVIC_ClearPendingIRQ(irq_n);
NVIC_SetPriority(irq_n, 1);
NVIC_EnableIRQ(irq_n);
@ -545,6 +545,9 @@ uint32_t spi_irq_handler_asynch(spi_t *obj)
// else we're done
event = SPI_EVENT_COMPLETE | SPI_EVENT_INTERNAL_TRANSFER_COMPLETE;
}
// enable the interrupt
NVIC_DisableIRQ(spiobj->spiIRQ);
NVIC_ClearPendingIRQ(spiobj->spiIRQ);
}
if (event) DEBUG_PRINTF("SPI: Event: 0x%x\n", event);