jajn HA

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9 years, 1 month ago.

transfer data to device (modbus protocol)

Sorry i post again. i want to transfer this array command[]={0x08, 0x03, 0x00, 0x01, 0x00, 0x02,0x95,0x52}; to device. and use modbus protocol so i need the device to receive these hex. How could i do ? Thanks very much TAT!!!! the board i use is LPC4088. this is my code~ but maybe i think it may have modbus code for it

#include "mbed.h"
Serial micro(p9, p10);//tx, rx
Serial pc(USBTX,USBRX);//tx, rx
const char command[]={0x08, 0x03, 0x00, 0x01, 0x00, 0x02,0x95,0x52};
int err;
 
int result;
int i ;
int main() {
    micro.format(8, Serial::None, 1);
    micro.baud(9600);
    pc.format(8, Serial::None, 1);
    pc.baud(9600);
    while(1){
        while (true) {
                    if (micro.writeable()) {
                                result =  micro.puts();//i have no idea so i don't know how to rectify
                                pc.printf("Putc result: %X\r\n",result);
                                break;
                              }
            }
    }
}
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