X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fao_serial.c;h=1e3ea3e39b2cd26852d30b18f5a8c5c095070f18;hp=f2f5e69736e6540f07572d90b9ba45a163337059;hb=fb8f3fee6a1bab1e46d782e84405845cee2dadb4;hpb=a1da7e871aee75308bc05ce1b7a0dc402e4c9509

diff --git a/src/ao_serial.c b/src/ao_serial.c
index f2f5e697..1e3ea3e3 100644
--- a/src/ao_serial.c
+++ b/src/ao_serial.c
@@ -60,7 +60,10 @@ ao_serial_getchar(void) __critical
 		ao_sleep(&ao_usart1_rx_fifo);
 	ao_fifo_remove(ao_usart1_rx_fifo, c);
 	if (serial_echo) {
-		printf("%02x\n", (uint8_t) c);
+		printf("%02x ", ((int) c) & 0xff);
+		if (c >= ' ')
+			putchar(c);
+		putchar('\n');
 		flush();
 	}
 	return c;
@@ -75,6 +78,13 @@ ao_serial_putchar(char c) __critical
 	ao_serial_tx1_start();
 }
 
+static void
+ao_serial_drain(void) __critical
+{
+	while (!ao_fifo_empty(ao_usart1_tx_fifo))
+		ao_sleep(&ao_usart1_tx_fifo);
+}
+
 static void
 send_serial(void)
 {
@@ -92,9 +102,17 @@ monitor_serial(void)
 	serial_echo = ao_cmd_lex_i != 0;
 }
 
+static void
+serial_baud(void)
+{
+	ao_cmd_hex();
+	ao_serial_set_speed(ao_cmd_lex_i);
+}
+
 __code struct ao_cmds ao_serial_cmds[] = {
 	{ 'S', send_serial,		"S <data>                           Send data to serial line" },
 	{ 'M', monitor_serial,		"M <enable>                         Monitor serial data" },
+	{ 'B', serial_baud,		"B <0 = 4800, 1 = 57600>            Set serial baud rate" },
 	{ 0, send_serial, NULL },
 };
 
@@ -106,6 +124,10 @@ static const struct {
 		/* .baud = */ 163,
 		/* .gcr  = */ (7 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
 	},
+	/* [AO_SERIAL_SPEED_9600] = */ {
+		/* .baud = */ 163,
+		/* .gcr  = */ (8 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
+	},
 	/* [AO_SERIAL_SPEED_57600] = */ {
 		/* .baud = */ 59,
 		/* .gcr =  */ (11 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
@@ -115,6 +137,9 @@ static const struct {
 void
 ao_serial_set_speed(uint8_t speed)
 {
+	ao_serial_drain();
+	if (speed > AO_SERIAL_SPEED_57600)
+		return;
 	U1BAUD = ao_serial_speeds[speed].baud;
 	U1GCR = ao_serial_speeds[speed].gcr;
 }