Hsieh JenYun / Mbed OS 446STM32_PC_I2CS

V1

Fork of 446STM32_Print_PC_I2CS by Hsieh JenYun

main.cpp@1:51fb8c086992, 2017-11-06 (annotated)

Committer:
Tanakacool
Date:
Mon Nov 06 06:05:09 2017 +0000
Revision:
1:51fb8c086992
Parent:
0:8be7c91879df
Child:
2:764981c589b6
I2CS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Tanakacool 1:51fb8c086992 1 #include <mbed.h>
Tanakacool 1:51fb8c086992 2
Tanakacool 0:8be7c91879df 3 I2CSlave slave(PC_9, PA_8);
Tanakacool 1:51fb8c086992 4 DigitalOut myled(LED1);
Tanakacool 1:51fb8c086992 5 Thread thread;
Tanakacool 1:51fb8c086992 6 Serial pc(USBTX, USBRX);
Tanakacool 1:51fb8c086992 7
Tanakacool 1:51fb8c086992 8 void slave_thread(){
Tanakacool 0:8be7c91879df 9 char buffer[128];
Tanakacool 1:51fb8c086992 10 while(true){
Tanakacool 1:51fb8c086992 11 Thread::signal_wait(1);
Tanakacool 1:51fb8c086992 12
Tanakacool 0:8be7c91879df 13 if(pc.readable()) {
Tanakacool 0:8be7c91879df 14 slave.stop();
Tanakacool 0:8be7c91879df 15 pc.gets(buffer, 128);
Tanakacool 0:8be7c91879df 16 pc.printf("I got '%s'\n", buffer);
Tanakacool 1:51fb8c086992 17 printf("get_state osStatus: %d\n",thread.get_state ());
Tanakacool 0:8be7c91879df 18 }
Tanakacool 1:51fb8c086992 19 }
Tanakacool 1:51fb8c086992 20 }
Tanakacool 1:51fb8c086992 21 int main() {
Tanakacool 1:51fb8c086992 22 char all_buf[]="i'm here!";
Tanakacool 1:51fb8c086992 23 char buf[20];
Tanakacool 1:51fb8c086992 24 char msg[] = "Hi Master!, this is 0xA0 response";
Tanakacool 1:51fb8c086992 25 slave.address(0xA0);
Tanakacool 1:51fb8c086992 26 thread.start(slave_thread);
Tanakacool 1:51fb8c086992 27 while (1) {
Tanakacool 1:51fb8c086992 28 int i = slave.receive();
Tanakacool 1:51fb8c086992 29 if(i==1||i==2||i==3){
Tanakacool 1:51fb8c086992 30 thread.signal_clr(0);
Tanakacool 1:51fb8c086992 31 switch (i) {
Tanakacool 0:8be7c91879df 32 case I2CSlave::ReadAddressed:
Tanakacool 0:8be7c91879df 33 if(!slave.write(msg, strlen(msg) + 1)) // Includes null char
Tanakacool 0:8be7c91879df 34 slave.stop();
Tanakacool 0:8be7c91879df 35 printf("ReadAddressed\n");
Tanakacool 0:8be7c91879df 36 //slave.stop();
Tanakacool 1:51fb8c086992 37 thread.signal_set(1);
Tanakacool 0:8be7c91879df 38 break;
Tanakacool 0:8be7c91879df 39 case I2CSlave::WriteGeneral:
Tanakacool 0:8be7c91879df 40 if(!slave.write(all_buf, strlen(all_buf) + 1)) // Includes null char
Tanakacool 0:8be7c91879df 41 slave.stop();
Tanakacool 0:8be7c91879df 42 printf("i've received the command...\n");
Tanakacool 1:51fb8c086992 43 thread.signal_set(1);
Tanakacool 0:8be7c91879df 44 break;
Tanakacool 0:8be7c91879df 45 case I2CSlave::WriteAddressed:
Tanakacool 0:8be7c91879df 46 slave.read(buf, 20);
Tanakacool 0:8be7c91879df 47 printf("master write to A: %s\n", buf);
Tanakacool 1:51fb8c086992 48 thread.signal_set(1);
Tanakacool 0:8be7c91879df 49 break;
Tanakacool 0:8be7c91879df 50 }
Tanakacool 1:51fb8c086992 51 }else{
Tanakacool 1:51fb8c086992 52 //thread.signal_set(1);
Tanakacool 1:51fb8c086992 53 }
Tanakacool 0:8be7c91879df 54 for(int i = 0; i < 10; i++) {
Tanakacool 0:8be7c91879df 55 buf[i] = 0; // Clear buffer
Tanakacool 0:8be7c91879df 56 }
Tanakacool 1:51fb8c086992 57 }
Tanakacool 0:8be7c91879df 58 }