Merge pull request buserror#411 from bsekisser/uart_raise_udr_raised_with_tx_enable

buserror · web-flow · commit 54a55cc2f009 · 2020-10-13T13:26:51.000+01:00
Set udre flag when (re)enabling uart transmitter.
diff --git a/simavr/sim/avr_uart.c b/simavr/sim/avr_uart.c
@@ -405,6 +405,8 @@ avr_uart_write(
 	if (new_txen != txen) {
 		if (p->udrc.vector && !new_txen) {
 			avr_uart_clear_interrupt(avr, &p->udrc);
+		} else {
+			avr_regbit_set(avr, p->udrc.raised);
 		}
 	}
 }

Original file line number	Diff line number	Diff line change
`@@ -405,6 +405,8 @@ avr_uart_write(`
`405`	`405`	`if (new_txen != txen) {`
`406`	`406`	`if (p->udrc.vector && !new_txen) {`
`407`	`407`	`avr_uart_clear_interrupt(avr, &p->udrc);`
	`408`	`+ } else {`
	`409`	`+ avr_regbit_set(avr, p->udrc.raised);`
`408`	`410`	`}`
`409`	`411`	`}`
`410`	`412`	`}`