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KL27Z: Fix serial IRQ handling 

Check that the RX or TX interrupt is enabled before calling
a registered handler with RxIrq or TxIrq arg.
pull/10774/head
Filip Jagodzinski 2019-06-07 16:46:53 +02:00
parent 9efaabe404
commit 3119d69f0e
1 changed files with 2 additions and 2 deletions
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4
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL27Z/serial_api.c
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@ -135,10 +135,10 @@ static inline void uart_irq(uint32_t transmit_empty, uint32_t receive_full, uint
}
if (serial_irq_ids[index] != 0) {
if (transmit_empty)
if (transmit_empty && (LPUART_GetEnabledInterrupts(uart_addrs[index]) & kLPUART_TxDataRegEmptyInterruptEnable))
irq_handler(serial_irq_ids[index], TxIrq);
if (receive_full)
if (receive_full && (LPUART_GetEnabledInterrupts(uart_addrs[index]) & kLPUART_RxDataRegFullInterruptEnable))
irq_handler(serial_irq_ids[index], RxIrq);
}
}