more init stuff

[my-code/fpga.git] / fx2 / fx2.c

diff --git a/fx2/fx2.c b/fx2/fx2.c
index ddea734..aa8d4cb 100644 (file)
--- a/fx2/fx2.c
+++ b/fx2/fx2.c
@@ -22,8 +22,8 @@ typedef unsigned short u16;
 typedef unsigned int u32;
 
 /* fx2 register */
-xdata at 0xb5 volatile u8 OED;
-xdata at 0xb0 volatile u8 IOD;
+sfr at 0xb5 OED;
+sfr at 0xb0 IOD;
 
 void power_on() {
 
@@ -31,10 +31,51 @@ void power_on() {
        IOD|=(1<<7);
 }
 
-void main() {
+void slave_fifo_init() {
+
+       /* set bit 0 and 1 - fifo slave config */       
+       IFCONFIG|=0x03;
+
+       /* async mode */
+       IFCONFIG|=0x04;
+
+       /* 8 bit fifo to all endpoints */
+       EP2FIFOCFG&=^(1<<0);
+       EP4FIFOCFG&=^(1<<0);
+       EP6FIFOCFG&=^(1<<0);
+       EP8FIFOCFG&=^(1<<0);
+
+       /* default indexed flag configuration:
+        *
+        * flag a: programmable level
+        * flag b: full
+        * flag c: empty
+        *
+        * todo: -> fixed configuration
+        */
+
+
+}
+
+void fx2_init() {
+
+       /* swicth on power */
+       power_on();
+
+       /* slave fifo init */
+       slave_fifo_init();
 
-       power_on;
 }
 
+void main() {
+
+       /* initialize the fx2 */
+       fx2_init();
 
+       /* do the job ... */
+       while(1) {
        
+       }
+
+}
+