Lab3-01_save_read_the_number_lite
Dependencies: mbed HEPTA_CDH_lite
Diff: main.cpp
- Revision:
- 1:ddac5ec89167
- Parent:
- 0:da0f6aca15b8
- Child:
- 2:35a16011d7ce
--- a/main.cpp Tue Aug 10 01:51:51 2021 +0000 +++ b/main.cpp Wed Aug 11 03:50:32 2021 +0000 @@ -1,15 +1,19 @@ #include "mbed.h" +#include "HEPTA_CDH.h" +HEPTA_CDH cdh(PB_5, PB_4, PB_3, PA_8, "sd"); Serial pc(USBTX,USBRX,9600); int main() { - char a,b; - a = 'A'; - pc.putc(a); - for(int i=0;i<10;i++) { - pc.printf("\r\n i=%d -- press any key -->",i); - b = pc.getc(); - pc.putc(b); - wait_ms(500); + pc.printf("Hello World!\n"); + + mkdir("/sd/mydir", 0777); + + FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); + if(fp == NULL) { + error("Could not open file for write\r\n"); } - pc.printf("\r\n End of program\r\n"); + fprintf(fp, "Hello my name is HEPTA\r\n"); + fclose(fp); + + pc.printf("Goodbye World!\r\n"); } \ No newline at end of file