.set USART_C_VALUE = bm_ASYNC | bm_NO_PARITY | bm_1STOPBIT | bm_8BIT .if WANT_INTERRUPTS == 0 .if WANT_ISR_RX == 1 .error "*** Config error. set WANT_ISR_RX to 0 too if you disable interrupts (WANT_INTERRUPTS is set to 0)" .endif .endif .if WANT_ISR_RX == 1 .set USART_B_VALUE = bm_ENABLE_TX | bm_ENABLE_RX | bm_ENABLE_INT_RX .include "drivers/usart-rx-buffer.asm" ; .include "drivers/timer-usart-isr.asm" .set XT_RX = XT_RX_BUFFER .set XT_RXQ = XT_RXQ_BUFFER .set XT_USART_INIT_RX = XT_USART_INIT_RX_BUFFER .else .set USART_B_VALUE = bm_ENABLE_TX | bm_ENABLE_RX .include "words/usart-rx-poll.asm" .set XT_RX = XT_RX_POLL .set XT_RXQ = XT_RXQ_POLL .set XT_USART_INIT_RX = 0 .endif .include "words/usart-tx-poll.asm" .set XT_TX = XT_TX_POLL .set XT_TXQ = XT_TXQ_POLL .set XT_USART_INIT_TX = 0 .include "words/ubrr.asm" .include "words/usart.asm"