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这是OBM里的一段代码，实现了LED 闪烁的功能，下面是LED原理图：
Led blinking
The LEDR, LEDG, LEDB, controlled by the 8806, can be programed to blinking by set the 8806 internal regs. Such as 0x0c,0x0d,0x0e,0x0f.
the difference between the 2 circuit is the resister value ,1 use 1k,and 2 use 0.
now I can only debug out the first blinking . maybe the second circuit has problems .
static int enable_led()
+{
+ char val = 0,count;
+
+ portofino_write(0x15, 0x02);
+ portofino_read(0x15,&count);
+ printf(NULL, "0x15 count = 0x%x.", count);
+
+ portofino_write(0x16, 0x10);
+ portofino_read(0x16,&count);
+ printf(NULL, "0x16 count = 0x%x.", count);
+
+
+ portofino_write(0x00, 0x0f);
+ portofino_write(0x01, 0x02);
+ portofino_read(0x01,&count);
+ printf(NULL, "0x01 count = 0x%x.", count);
+
+#if 1
+ AddMessage((UINT8_T*) ("Run Led Enable !\0"));
+ portofino_write(PORTOFINO_WLED2B, 0x2);
+
+ portofino_read(PORTOFINO_WLED2B,&count);
+ printf(NULL, "0x05 count = 0x%x.", count);
+
+ portofino_write(PORTOFINO_WLED3A, 0x35);
+ portofino_read(PORTOFINO_WLED3A,&count);
+ printf(NULL, "0x06 count = 0x%x.", count);
+#endif
+ portofino_read(PORTOFINO_WLED3B, &val);
+
+ portofino_write(PORTOFINO_WLED3B, val | 0x02); //RGB1 LED enable+ portofino_read(PORTOFINO_WLED3B,&count);
+ printf(NULL, "0x07 count = 0x%x.", count);
+
+// portofino_write(PORTOFINO_RGB1_CON, 0x11); //RGB+ portofino_write(PORTOFINO_RGB1_CON, 0x07); //RGB control+ portofino_read(PORTOFINO_RGB1_CON,&count);
+ printf(NULL, "0x0c count = 0x%x.", count);
+
+ portofino_write(PORTOFINO_R_RGB1, 0x00); //Red+ portofino_read(PORTOFINO_R_RGB1,&count);
+ printf(NULL, "0x0d count = 0x%x.", count);
+
+ portofino_write(PORTOFINO_G_RGB1, 0x00); //Green+ portofino_read(PORTOFINO_G_RGB1,&count);
+ printf(NULL, "0x0E count = 0x%x.", count);
+
+ portofino_write(PORTOFINO_B_RGB1, 0xFF); //Blue+ portofino_read(PORTOFINO_B_RGB1,&count);
+ printf(NULL, "0x0F count = 0x%x.", count);+ AddMessage((UINT8_T*) ("Led Enable Complete !\0"));
+while(1);
+ return 0;
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