1、引脚连接
PN532 VCC-----CC2530 5V
PN532 GND-----CC2530 GND
PN532 SCL(RX)-----CC2530 P1_6引脚(TX)(uart1模式)
PN532 SDA(TX)-----CC2530 P1_7引脚(RX)(uart1模式)
2、PN532模式切换
切换为HSU 0-0
引脚连接及HSU模式如下图（CC2530引脚自己连接）
3、数据传输
开启CC2530 UART0及UART1串口，UART0用usb连接电脑串口显示PN532回复数据,UART1传输CC2530至pn532的命令，目前主要是激活命令{0x55, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, 0xfd, 0xd4, 0x14, 0x01, 0x17, 0x00}和寻卡命令{0x00 ,0x00 ,0xFF ,0x04 ,0xFC ,0xD4 ,0x4A ,0x02 ,0x00 ,0xE0 ,0x00}
4、代码见附件 - #include <ioCC2530.h>
- #include <string.h>
- typedef unsigned char uchar;
- typedef unsigned int uint;
- #define LED P1_0
- #define LCD_RX P1_7 /* s---TX/ --- RX P1_7--m*/
- #define LCD_TX P1_6 /* s---RX ----TX P1_6--m*/
- uchar ack_frame[]={0x00,0x00,0xFF,0x00,0xFF,0x00};
- uchar send_command_1[] ={0x55, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, 0xfd, 0xd4, 0x14, 0x01, 0x17, 0x00};
- uchar send_command_2[] = {0x00 ,0x00 ,0xFF ,0x04 ,0xFC ,0xD4 ,0x4A ,0x02 ,0x00 ,0xE0 ,0x00};
- void InitUart(void){
- P0SEL |= 0x0E;
- P2DIR &= ~0XC0;
- U0CSR |= 0x80; // uart mode
- // U0CSR |= 0x40; // re interrupt enable
- U0GCR |= 11;
- U0BAUD |= 216;
- UTX0IF = 0;
- // URX0IF = 0;
- }
- void uart(char Data)
- {
- U0DBUF = Data;
- while(UTX0IF == 0);
- UTX0IF = 0;
- }
-
- void UartSendString_PN(char *Data, int len)
- {
- uint i;
- for(i=0; i<len; i++)
- {
- U1DBUF = *Data++;
- while(UTX1IF == 0);
- UTX1IF = 0;
- }
- }
- void UartSendString(char *Data, int len)
- {
- uint i;
-
- for(i=0; i<len; i++)
- {
- U0DBUF = *Data++;
- while(UTX0IF == 0);
- UTX0IF = 0;
- }
- }
- void delayMS(){
- for(uchar i =0 ;i<100;i++)
- for(uchar j =0 ;j<50;j++);
- }
- void main()
- {
- CLKCONCMD &= ~0x40; //
- while(CLKCONSTA & 0x40); //
- CLKCONCMD &= ~0x47; //32MHZ
- PERCFG |= 0x02; //
- InitUart();
- P1SEL |= 0xC0; //1_7 1_6 WAISHE IO
- P1DIR |=0X01; //1_0 LED
- U1BAUD |= 0xD8; // baud_m 216
- U1GCR |= 0x0B; // Set baud_e 11 115200bps
- U1CSR |= 0xC0; // uart mode ENABLE RE
- U1UCR &=0xf3; //stop bit --1bit DISABLE Parity
- U1GCR &= ~0x60; //LSB
- UTX1IF =0; // UART1 TX interrupt signal reset
- URX1IE = 1; // UART1 TX interrupt enable
- EA =1;
- LED = 0;
- UartSendString_PN(send_command_1,sizeof(send_command_1));
- delayMS();
- UartSendString_PN(send_command_2,sizeof(send_command_2));
- delayMS();
- }
- uchar* chartohex(uchar v)
- {
- uchar n[5];
- n[0]=48;
- n[1]=120;
- uchar s1,s2;
- if(((v>>4)+48)>57) s1= (v>>4)+71 ;
- else s1=(v>>4)+48;
- if(((v&0x0f)+48)>57) s2= (v&0x0f)+71;
- else s2=(v&0x0f)+48;
- n[2]=s1;
- n[3]=s2;
- n[4] = 44;
- return n;
- }
- /****************************************************************************
- * 名 称: UART1_ISR(void) 串口中断处理函数
- * 描 述: 当串口1产生接收中断，将收到的数据发送到串口
- ****************************************************************************/
- #pragma vector = URX1_VECTOR
- __interrupt void UART1_ISR(void)
- {
- uchar tmp = U1DBUF;
- uart(tmp);
- // UartSendString(chartohex(tmp),5);
- URX1IF = 0; // 清中断标志
- }
- /****************************************************************************
- char iRxBuf = 0;
- char RxBuf[];
- * 名 称: UART0_ISR(void) 串口中断处理函数
- * 描 述: 当串口0产生接收中断，将收到的数据保存在RxBuf中
- #pragma vector = URX0_VECTOR
- __interrupt void UART0_ISR(void)
- {
- if(U0DBUF == 35) // # signal send rxbuf to pn532
- {
- UartSendString_PN(RxBuf,iRxBuf+1);
- }else
- {
- RxBuf[iRxBuf]=U0DBUF;
- iRxBuf++;
- }
- // UartSendString(chartohex(tmp),5);
- URX0IF = 0; // interrupt signal reset
- }
- ****************************************************************************/
以上代码下载:
uart_硬件(测试通过）.zip
(27.33 KB, 下载次数: 18)
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