struct ao_fifo {
uint8_t insert;
uint8_t remove;
- uint8_t fifo[SERIAL_FIFO];
+ char fifo[SERIAL_FIFO];
};
volatile __xdata struct ao_fifo ao_usart1_rx_fifo;
ao_wakeup(&ao_usart1_tx_fifo);
}
-uint8_t
+char
ao_serial_getchar(void) __critical
{
- uint8_t c;
+ char c;
while (ao_fifo_empty(ao_usart1_rx_fifo))
ao_sleep(&ao_usart1_rx_fifo);
ao_fifo_remove(ao_usart1_rx_fifo, c);
}
void
-ao_serial_putchar(uint8_t c) __critical
+ao_serial_putchar(char c) __critical
{
while (ao_fifo_full(ao_usart1_tx_fifo))
ao_sleep(&ao_usart1_tx_fifo);