HEPTA-Sat Training 2020
/
Lab3-01_save_the_letters
for textbook v4.4
main.cpp
- Committer:
- Yanagihara
- Date:
- 2020-11-17
- Revision:
- 27:210fe762fa94
- Parent:
- 26:f15b873a018c
File content as of revision 27:210fe762fa94:
#include "mbed.h" #include "HEPTA_CDH.h" Serial pc(USBTX,USBRX); HEPTA_CDH cdh(p5, p6, p7, p8, "sd"); int main() { pc.baud(9600); pc.printf("Hello world!\r\n"); char str[100]; mkdir("/sd/mydir", 0777); FILE *fp = fopen("/sd/mydir/test.txt","w"); if(fp == NULL) { error("Could not open file for write\r\n"); } for(int i=0; i<10; i++)fprintf(fp,"Hello my name is HEPTA!\r\n"); fclose(fp); fp = fopen("/sd/mydir/test.txt","r"); for(int j = 0; j < 10; j++) { fgets(str,100,fp); pc.puts(str); } fclose(fp); pc.printf("Goodbye!!\r\n"); }