Zoltan Hudak / Mbed 2 deprecated STM32F407VET6_SDCard

Using SD cards with STM32F407VET6 boards.

Dependencies:   SDFileSystem mbed

Using SD cards with STM32F407VET6 black boards

To use the on-board micro SD card slot with this demo program connect the board pins one another with wires as indicated below.

Wiring
SPI pinsSDIO pins
PC_3<=>PD_2
PC_2<=>PC_8
PB_10<=>PC_12
PC_0<=>PC_11

main.cpp@0:fad6683294f8, 2018-04-28 (annotated)

Committer:
hudakz
Date:
Sat Apr 28 10:03:42 2018 +0000
Revision:
0:fad6683294f8
Initial release.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 0:fad6683294f8 1 #include "mbed.h"
hudakz 0:fad6683294f8 2 #include "SDFileSystem.h"
hudakz 0:fad6683294f8 3 #include "errno.h"
hudakz 0:fad6683294f8 4
hudakz 0:fad6683294f8 5 SDFileSystem fs(PC_3, PC_2, PB_10, PC_0, "sd"); // mosi, miso, sck, cs
hudakz 0:fad6683294f8 6 FILE* fp;
hudakz 0:fad6683294f8 7
hudakz 0:fad6683294f8 8 /**
hudakz 0:fad6683294f8 9 * @brief
hudakz 0:fad6683294f8 10 * @note
hudakz 0:fad6683294f8 11 * @param
hudakz 0:fad6683294f8 12 * @retval
hudakz 0:fad6683294f8 13 */
hudakz 0:fad6683294f8 14 int main()
hudakz 0:fad6683294f8 15 {
hudakz 0:fad6683294f8 16 printf("Mounting file system...\r\n");
hudakz 0:fad6683294f8 17
hudakz 0:fad6683294f8 18 int err = fs.mount();
hudakz 0:fad6683294f8 19 printf("%s\r\n", (err ? "Failed :(\r\n" : "OK\r\n"));
hudakz 0:fad6683294f8 20 if (err)
hudakz 0:fad6683294f8 21 return err;
hudakz 0:fad6683294f8 22
hudakz 0:fad6683294f8 23 // Open the file.
hudakz 0:fad6683294f8 24 printf("Opening file '/sd/mytest/sdtest.txt'... ");
hudakz 0:fad6683294f8 25 fp = fopen("/sd/mytest/sdtest.txt", "w+");
hudakz 0:fad6683294f8 26 printf("%s\r\n", (!fp ? "Failed :(\r\n" : "OK\r\n"));
hudakz 0:fad6683294f8 27
hudakz 0:fad6683294f8 28 if (!fp)
hudakz 0:fad6683294f8 29 {
hudakz 0:fad6683294f8 30 // Check whether directory '/sd/mytest' exists.
hudakz 0:fad6683294f8 31 printf("\r\nChecking directory '/sd/mytest'...\r\n");
hudakz 0:fad6683294f8 32
hudakz 0:fad6683294f8 33 struct stat info;
hudakz 0:fad6683294f8 34 err = stat("/sd/mytest", &info);
hudakz 0:fad6683294f8 35 if (err)
hudakz 0:fad6683294f8 36 {
hudakz 0:fad6683294f8 37 printf("Directory '/sd/mytest' does not exist.\r\n");
hudakz 0:fad6683294f8 38 printf("Trying to create it...");
hudakz 0:fad6683294f8 39 err = mkdir("/sd/mytest", 0777);
hudakz 0:fad6683294f8 40 printf("%s\r\n", (err ? "Failed :(\r\n" : "OK\r\n"));
hudakz 0:fad6683294f8 41 if (err)
hudakz 0:fad6683294f8 42 return err;
hudakz 0:fad6683294f8 43 }
hudakz 0:fad6683294f8 44
hudakz 0:fad6683294f8 45 // Create a new 'sdtest.txt' file.
hudakz 0:fad6683294f8 46 printf("File not found, creating a new one...\r\n");
hudakz 0:fad6683294f8 47 fp = fopen("/sd/mytest/sdtest.txt", "w+");
hudakz 0:fad6683294f8 48 printf("%s\r\n", (!fp ? "Failed :(" : "OK"));
hudakz 0:fad6683294f8 49 if (!fp)
hudakz 0:fad6683294f8 50 {
hudakz 0:fad6683294f8 51 error("error: %s (%d)\r\n", strerror(errno), -errno);
hudakz 0:fad6683294f8 52 return errno;
hudakz 0:fad6683294f8 53 }
hudakz 0:fad6683294f8 54 }
hudakz 0:fad6683294f8 55
hudakz 0:fad6683294f8 56 for (int i = 0; i < 10; i++)
hudakz 0:fad6683294f8 57 {
hudakz 0:fad6683294f8 58 printf("Writing numbers (%d/%d)... ", i, 10);
hudakz 0:fad6683294f8 59 err = fprintf(fp, " %d\r\n", i);
hudakz 0:fad6683294f8 60 if (err < 0)
hudakz 0:fad6683294f8 61 {
hudakz 0:fad6683294f8 62 printf("Fail :(\r\n");
hudakz 0:fad6683294f8 63 error("error: %s (%d)\r\n", strerror(errno), -errno);
hudakz 0:fad6683294f8 64 }
hudakz 0:fad6683294f8 65 else
hudakz 0:fad6683294f8 66 printf("OK\r\n");
hudakz 0:fad6683294f8 67 }
hudakz 0:fad6683294f8 68
hudakz 0:fad6683294f8 69 printf("Writing numbers (%d/%d)... OK\r\n\r\n", 10, 10);
hudakz 0:fad6683294f8 70 err = fclose(fp);
hudakz 0:fad6683294f8 71 printf("Closing file '/sd/mytest/sdtest.txt'... ");
hudakz 0:fad6683294f8 72 printf("%s\r\n", (err ? "Failed :(\r\n" : "OK\r\n"));
hudakz 0:fad6683294f8 73 if (err)
hudakz 0:fad6683294f8 74 return err;
hudakz 0:fad6683294f8 75
hudakz 0:fad6683294f8 76 return 0;
hudakz 0:fad6683294f8 77 }