ZigBee module Basic Experiment (1) Light up led

1. Io Configuration

Three registers are required for the configuration of the IOS port of the standard.

 

IO port register	P0	P1	P2
Address	0x80	0x90	0xa0

 

Pxsel	P0sel	P1sel	P2sel
Address	0xf3	0xf4	0xf5
Px [] function to set registers. The default is normal IO port (0: normal IO port 1: second function)

 

Pxdir	P0dir	P1dir	P2dir
Address	0xfd	0xfe	0xff
Px [] input and output settings register (0: Input 1: Output)

 

Pxindium	P0indium	P1indium	P2indium
Address	0x8f	0xf6	0xf7
Px [] the circuit mode register when the input port is used (0: up/down 1: three States)

2. Led Wiring

Connect led1 to p1_0

Led2 connected to p1_1

 

3. Implement Functions

Led1 and led2 flash alternately after power-on

 

4. Some code analysis

Configure p1_0 and p1_1 ports

P1sel & = ~ 0x03;

P1dir | = 0x03;

P1indium & = ~ 0x03;

 

5. complete code

 1 #include <ioCC2530.h> 2  3 #define LED1 P1_0 4 #define LED2 P1_1 5  6 #define uchar unsigned char 7 #define uint  unsigned int 8  9 void ledInit();10 void delayms(uint ms);11 12 void ledInit()13 {14   P1SEL &= ~0x03;15   P1DIR |= 0x03;16   P1INP &= ~0x03;17   18   LED1 = 1;19   LED2 = 0;20 }21 22 void delayms(uint ms)23 {24   uint i,j;25   for(i=ms; i>0; i--)26     for(j=587; j>0; j--);27 }28 29 void main()30 {31   ledInit();32   while(1)33   {34     delayms(1000);35     LED1 = !LED1;36     LED2 = !LED2;37   }38 }

 

ZigBee module Basic Experiment (1) Light up led