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Revert "Fixed interrupt handler in serial_api.c for the Nordic NRF51. The last b..."

pull/1061/head
Martin Kojtal 2015-04-21 11:24:58 +01:00
parent 289b8064e0
commit f3936afa34
1 changed files with 10 additions and 29 deletions
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31
libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/serial_api.c
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@ -162,20 +162,14 @@ extern "C" {
#endif
void UART0_IRQHandler()
{
if((NRF_UART0->INTENSET & UART_INTENSET_TXDRDY_Msk) && NRF_UART0->EVENTS_TXDRDY)
{
uart_irq(1, 0);
uint32_t irtype = 0;
/* Explicitly clear TX flag to prevent interrupt from firing
immediately after returning from ISR. This ensures that the
last interrupt in a transmission sequence is correcly handled.
*/
NRF_UART0->EVENTS_TXDRDY = 0;
}
else if((NRF_UART0->INTENSET & UART_INTENSET_RXDRDY_Msk) && NRF_UART0->EVENTS_RXDRDY)
{
uart_irq(2, 0);
if((NRF_UART0->INTENSET & 0x80) && NRF_UART0->EVENTS_TXDRDY) {
irtype = 1;
} else if((NRF_UART0->INTENSET & 0x04) && NRF_UART0->EVENTS_RXDRDY) {
irtype = 2;
}
uart_irq(irtype, 0);
}
#ifdef __cplusplus
@ -244,18 +238,6 @@ int serial_getc(serial_t *obj)
}
void serial_putc(serial_t *obj, int c)
{
/* In interrupt mode, send character immediately. Otherwise, block until
UART is ready to receive next character before sending.
The TXDRDY flag is cleared in interrupt handler to ensure that it is
cleared even if there are no more characters to send.
*/
if (NRF_UART0->INTENSET & UART_INTENSET_TXDRDY_Msk)
{
obj->uart->TXD = (uint8_t)c;
}
else
{
while (!serial_writable(obj)) {
}
@ -263,7 +245,6 @@ void serial_putc(serial_t *obj, int c)
obj->uart->EVENTS_TXDRDY = 0;
obj->uart->TXD = (uint8_t)c;
}
}
int serial_readable(serial_t *obj)
{