new schematic

[my-code/atmel.git] / led_plex / port.asm

diff --git a/led_plex/port.asm b/led_plex/port.asm
index aeb40f1..715a402 100644 (file)
--- a/led_plex/port.asm
+++ b/led_plex/port.asm
@@ -1,14 +1,21 @@
 ; port functions
 
-GIO_PORT_INIT:
+PORT_INIT:
 
-       ; port b 0-2 -> output
-       ldi tmp1,0x06
+       ; port b 0-3 -> output
+       ldi tmp1,0x0f
        out DDRB,tmp1
 
-       ; zero outputs
-       ldi tmp1,0x00
-       out PORTB,tmp1
+       ; g, rck, sck -> low / scl -> high
+       cbi PORTB,(1<<0)|(1<<1)|(1<<2)
+       sbi PORTB,(1<<3)
+
+       ; port d 6 -> output
+       ldi tmp1,(1<<6)
+       out DDRD,tmp1
+
+       ; ser -> low
+       cbi PORTD,(1<<6)
 
        ret