Important changes to forums and questions
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
NUCLEO_F042K6____MASTER
#include "mbed.h" I2C i2c_port(PF_0, PF_1); const int addr = 0xA0; unsigned char buf[6]; int main() { //i2c_port.frequency(25000); buf[0]=0x00; buf[1]=0x30; buf[2]=0x09; buf[3]=0x00; buf[4]=0x31; buf[5]=0x10; while(1) { wait(0.002); i2c_port.start(); i2c_port.write(addr); i2c_port.write(buf[0]); i2c_port.write(buf[1]); i2c_port.write(buf[2]); i2c_port.stop(); wait(0.002); i2c_port.start(); i2c_port.write(addr); i2c_port.write(buf[3]); i2c_port.write(buf[4]); i2c_port.write(buf[5]); i2c_port.stop(); } }NUCLEO_L053R8___SLAVE
#include <mbed.h> I2CSlave slave(PB_9, PB_8); //Serial pc(SERIAL_TX, SERIAL_RX); char rec_buf[10]; int main() { slave.address(0xA0); while (1) { int i = slave.receive(); if (i == 3) { rec_buf[0]=slave.read(); rec_buf[1]=slave.read(); rec_buf[2]=slave.read(); rec_buf[3]=slave.read(); rec_buf[4]=slave.read(); rec_buf[5]=slave.read(); } } }Results on bus are showed below:
I'm tring to send data from master buf[] so I expect to have 3 bytes sent like on below picture (captured form eeprom)
Please check my code and give me any advice to send and receive data like below: