Led Blinking 功能驱动设计

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;
+}