![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
dsfa
Dependencies: dsf SDFileSystem TextLCD mbed stepper_moter
Fork of my_example_Nucleo_Ex05_SD_zhangyuxiang2 by
main.cpp@0:b0a3ecd53c7d, 2016-03-21 (annotated)
- Committer:
- beaglescout007
- Date:
- Mon Mar 21 08:58:22 2016 +0000
- Revision:
- 0:b0a3ecd53c7d
- Child:
- 1:d65338ce2e7c
Release
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
beaglescout007 | 0:b0a3ecd53c7d | 1 | #include "mbed.h" |
beaglescout007 | 0:b0a3ecd53c7d | 2 | #include "SDFileSystem.h" |
beaglescout007 | 0:b0a3ecd53c7d | 3 | |
beaglescout007 | 0:b0a3ecd53c7d | 4 | DigitalIn btn(USER_BUTTON); |
beaglescout007 | 0:b0a3ecd53c7d | 5 | |
beaglescout007 | 0:b0a3ecd53c7d | 6 | // trim '\n' |
beaglescout007 | 0:b0a3ecd53c7d | 7 | void ntrim(char *str) |
beaglescout007 | 0:b0a3ecd53c7d | 8 | { |
beaglescout007 | 0:b0a3ecd53c7d | 9 | int i; |
beaglescout007 | 0:b0a3ecd53c7d | 10 | for (i = 0; str[i] != 0; ++i); |
beaglescout007 | 0:b0a3ecd53c7d | 11 | |
beaglescout007 | 0:b0a3ecd53c7d | 12 | if (i > 0 && str[i - 1] == '\n') |
beaglescout007 | 0:b0a3ecd53c7d | 13 | str[i - 1] = 0; |
beaglescout007 | 0:b0a3ecd53c7d | 14 | } |
beaglescout007 | 0:b0a3ecd53c7d | 15 | |
beaglescout007 | 0:b0a3ecd53c7d | 16 | int main() |
beaglescout007 | 0:b0a3ecd53c7d | 17 | { |
beaglescout007 | 0:b0a3ecd53c7d | 18 | // SD filesystem |
beaglescout007 | 0:b0a3ecd53c7d | 19 | SDFileSystem *sd = new SDFileSystem(PB_15, PB_14, PB_13, PA_9, "sd", NC, SDFileSystem::SWITCH_NONE, 20000000); // mosi, miso, sclk, name, card detect, sw type, freq |
beaglescout007 | 0:b0a3ecd53c7d | 20 | |
beaglescout007 | 0:b0a3ecd53c7d | 21 | while (1) |
beaglescout007 | 0:b0a3ecd53c7d | 22 | { |
beaglescout007 | 0:b0a3ecd53c7d | 23 | if (btn) continue; |
beaglescout007 | 0:b0a3ecd53c7d | 24 | |
beaglescout007 | 0:b0a3ecd53c7d | 25 | // file open |
beaglescout007 | 0:b0a3ecd53c7d | 26 | FILE *fp = fopen("/sd/test.txt", "r"); |
beaglescout007 | 0:b0a3ecd53c7d | 27 | if (fp == NULL) |
beaglescout007 | 0:b0a3ecd53c7d | 28 | { |
beaglescout007 | 0:b0a3ecd53c7d | 29 | printf("open error!!\r\n"); |
beaglescout007 | 0:b0a3ecd53c7d | 30 | while(1); |
beaglescout007 | 0:b0a3ecd53c7d | 31 | } |
beaglescout007 | 0:b0a3ecd53c7d | 32 | |
beaglescout007 | 0:b0a3ecd53c7d | 33 | // read text file |
beaglescout007 | 0:b0a3ecd53c7d | 34 | char buf[1024]; |
beaglescout007 | 0:b0a3ecd53c7d | 35 | while (fgets(buf, sizeof(buf), fp) != NULL) |
beaglescout007 | 0:b0a3ecd53c7d | 36 | { |
beaglescout007 | 0:b0a3ecd53c7d | 37 | ntrim(buf); |
beaglescout007 | 0:b0a3ecd53c7d | 38 | printf("%s\r\n", buf); |
beaglescout007 | 0:b0a3ecd53c7d | 39 | } |
beaglescout007 | 0:b0a3ecd53c7d | 40 | |
beaglescout007 | 0:b0a3ecd53c7d | 41 | // file close |
beaglescout007 | 0:b0a3ecd53c7d | 42 | fclose(fp); |
beaglescout007 | 0:b0a3ecd53c7d | 43 | |
beaglescout007 | 0:b0a3ecd53c7d | 44 | wait(1); |
beaglescout007 | 0:b0a3ecd53c7d | 45 | } |
beaglescout007 | 0:b0a3ecd53c7d | 46 | } |