altos: Bring up basic TeleTerra v0.2 UI

[fw/altos] / src / cc1111 / ao_lcd_port.c

diff --git a/src/cc1111/ao_lcd_port.c b/src/cc1111/ao_lcd_port.c
index 324cc3d39855a46956b0c8adcc5ddbf648f9b837..e61b1a60490a7600a931d6fad6d43fb5d6e2f457 100644 (file)
--- a/src/cc1111/ao_lcd_port.c
+++ b/src/cc1111/ao_lcd_port.c
@@ -17,15 +17,24 @@
 
 #include "ao.h"
 
+static void
+ao_lcd_port_delay(void)
+{
+       uint8_t i;
+
+       for (i = 0; i < 100; i++)
+               ao_arch_nop();
+}
+
 void
 ao_lcd_port_put_nibble(uint8_t rs, uint8_t nibble)
 {
        P0 = (P0 & 0xf0) | (nibble & 0x0f);
        P1_1 = rs;
        P1_0 = 1;
-       ao_delay(1);
+       ao_lcd_port_delay();
        P1_0 = 0;
-       ao_delay(1);
+       ao_lcd_port_delay();
 }
 
 void