Check serial input

[fw/altos] / target / serial / serial.c

diff --git a/target/serial/serial.c b/target/serial/serial.c
index 1c352831dfa1d6f9e4b6c1cfe173f75cbf959e7a..2939042635ca84d48e0ea586d9fa6d518ea9d1cd 100644 (file)
--- a/target/serial/serial.c
+++ b/target/serial/serial.c
@@ -207,7 +207,7 @@ usart_init(void)
                 UxUCR_D9_ODD_PARITY |
                 UxUCR_BIT9_8_BITS |
                 UxUCR_PARITY_DISABLE |
-                UxUCR_SPB_1_STOP_BIT |
+                UxUCR_SPB_2_STOP_BITS |
                 UxUCR_STOP_HIGH |
                 UxUCR_START_LOW);
 }
@@ -219,7 +219,15 @@ usart_out_byte(uint8_t byte)
        while (!UTX1IF)
                ;
        UTX1IF = 0;
-       delay(1);
+}
+
+void
+usart_out_string(uint8_t *string)
+{
+       uint8_t b;
+
+       while (b = *string++)
+               usart_out_byte(b);
 }
 
 uint8_t
@@ -233,12 +241,20 @@ usart_in_byte(void)
        return b;
 }
 
-static char string[] = "hello world\r\n";
+void
+debug_byte(uint8_t byte)
+{
+       uint8_t s;
+
+       for (s = 0; s < 8; s++) {
+               DEBUG = byte & 1;
+               delay(5);
+               byte >>= 1;
+       }
+}
 
 main ()
 {
-       uint8_t i;
-
        P1DIR |= 2;
        CLKCON = 0;
        while (!(SLEEP & SLEEP_XOSC_STB))
@@ -247,9 +263,8 @@ main ()
        usart_init();
 
        for (;;) {
-               for (i = 0; i < sizeof(string) - 1; i++)
-                       usart_out_byte(string[i]);
-               delay(5);
-               P1 ^= 2;
+               usart_out_string("hello world\r\n");
+               debug_byte(usart_in_byte());
        }
+       
 }