David Giles
This software will read a .wav file from an SD card and display the header information contained within it. It is designed to work with the SD card on the mbed carrier which is part of the RS-EDP system.
Dependencies: mbed SDFileSystem
SourceFiles/main.cpp@0:35c1800c59e6, 2010-11-19 (annotated)
- Committer:
- DavidGilesHitex
- Date:
- Fri Nov 19 09:54:23 2010 +0000
- Revision:
- 0:35c1800c59e6
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| DavidGilesHitex | 0:35c1800c59e6 | 1 | /* SD-Card Utility Program for RS-EDP and RS-EDP mbed adapter module */ |
| DavidGilesHitex | 0:35c1800c59e6 | 2 | /* ***************************************************************** */ |
| DavidGilesHitex | 0:35c1800c59e6 | 3 | |
| DavidGilesHitex | 0:35c1800c59e6 | 4 | |
| DavidGilesHitex | 0:35c1800c59e6 | 5 | |
| DavidGilesHitex | 0:35c1800c59e6 | 6 | #include "mbed.h" |
| DavidGilesHitex | 0:35c1800c59e6 | 7 | |
| DavidGilesHitex | 0:35c1800c59e6 | 8 | #include "defines.h" |
| DavidGilesHitex | 0:35c1800c59e6 | 9 | #include "misra_types.h" |
| DavidGilesHitex | 0:35c1800c59e6 | 10 | #include "mbed_Port_Structure.h" |
| DavidGilesHitex | 0:35c1800c59e6 | 11 | |
| DavidGilesHitex | 0:35c1800c59e6 | 12 | #include "SDFileSystem.h" |
| DavidGilesHitex | 0:35c1800c59e6 | 13 | #include "Wav_Support_File.h" |
| DavidGilesHitex | 0:35c1800c59e6 | 14 | |
| DavidGilesHitex | 0:35c1800c59e6 | 15 | |
| DavidGilesHitex | 0:35c1800c59e6 | 16 | |
| DavidGilesHitex | 0:35c1800c59e6 | 17 | |
| DavidGilesHitex | 0:35c1800c59e6 | 18 | /* Main Loop Here */ |
| DavidGilesHitex | 0:35c1800c59e6 | 19 | int main(void) |
| DavidGilesHitex | 0:35c1800c59e6 | 20 | { |
| DavidGilesHitex | 0:35c1800c59e6 | 21 | FILE *wavfile; |
| DavidGilesHitex | 0:35c1800c59e6 | 22 | char file_name_with_root_and_path[30]; |
| DavidGilesHitex | 0:35c1800c59e6 | 23 | char input_file_name[30]; |
| DavidGilesHitex | 0:35c1800c59e6 | 24 | char *pointer1; |
| DavidGilesHitex | 0:35c1800c59e6 | 25 | char *pointer2; |
| DavidGilesHitex | 0:35c1800c59e6 | 26 | char n = 0; |
| DavidGilesHitex | 0:35c1800c59e6 | 27 | uint8_t wave_array[30]; |
| DavidGilesHitex | 0:35c1800c59e6 | 28 | |
| DavidGilesHitex | 0:35c1800c59e6 | 29 | |
| DavidGilesHitex | 0:35c1800c59e6 | 30 | |
| DavidGilesHitex | 0:35c1800c59e6 | 31 | for (n = 0; n < 30; n++) /* initialise arrays to zero */ |
| DavidGilesHitex | 0:35c1800c59e6 | 32 | { |
| DavidGilesHitex | 0:35c1800c59e6 | 33 | file_name_with_root_and_path[n] = 0; |
| DavidGilesHitex | 0:35c1800c59e6 | 34 | input_file_name[n] = 0; |
| DavidGilesHitex | 0:35c1800c59e6 | 35 | } |
| DavidGilesHitex | 0:35c1800c59e6 | 36 | |
| DavidGilesHitex | 0:35c1800c59e6 | 37 | setup_mbed_ports(); /* Setup the I/O Structure of the mbed module */ |
| DavidGilesHitex | 0:35c1800c59e6 | 38 | |
| DavidGilesHitex | 0:35c1800c59e6 | 39 | pc.printf("\n\n\n\n\n\n\n\rWelcome the the mbed SD-CARD Utility\n\r"); |
| DavidGilesHitex | 0:35c1800c59e6 | 40 | pc.printf("Software Revision Number: %d\n\r\n", FIRMWARE_VERSION); |
| DavidGilesHitex | 0:35c1800c59e6 | 41 | |
| DavidGilesHitex | 0:35c1800c59e6 | 42 | pc.printf("This application reads a .WAV file from the SC-CARD and\n\r"); |
| DavidGilesHitex | 0:35c1800c59e6 | 43 | pc.printf("displays the header information contained within it\n\n\r"); |
| DavidGilesHitex | 0:35c1800c59e6 | 44 | |
| DavidGilesHitex | 0:35c1800c59e6 | 45 | User_Led1 = LED_OFF; |
| DavidGilesHitex | 0:35c1800c59e6 | 46 | User_Led2 = LED_OFF; |
| DavidGilesHitex | 0:35c1800c59e6 | 47 | User_Led3 = LED_OFF; |
| DavidGilesHitex | 0:35c1800c59e6 | 48 | User_Led4 = LED_OFF; |
| DavidGilesHitex | 0:35c1800c59e6 | 49 | |
| DavidGilesHitex | 0:35c1800c59e6 | 50 | while(1) |
| DavidGilesHitex | 0:35c1800c59e6 | 51 | { |
| DavidGilesHitex | 0:35c1800c59e6 | 52 | pointer1 = file_name_with_root_and_path; /* set pointer1 to point at the complete name and path array */ |
| DavidGilesHitex | 0:35c1800c59e6 | 53 | strcpy(pointer1, "/sd/"); /* Start to build the root, directory and file name of the file we want to examine */ |
| DavidGilesHitex | 0:35c1800c59e6 | 54 | |
| DavidGilesHitex | 0:35c1800c59e6 | 55 | pointer2 = input_file_name; /* set pointer2 to point at an empty string array to take the user input file name */ |
| DavidGilesHitex | 0:35c1800c59e6 | 56 | pc.printf("Enter the file name you wish to check\n\r"); |
| DavidGilesHitex | 0:35c1800c59e6 | 57 | |
| DavidGilesHitex | 0:35c1800c59e6 | 58 | scanf("%s", pointer2); /* Get the file name into an array called 'input_file_name', pointed to by a pointer called pointer2 */ |
| DavidGilesHitex | 0:35c1800c59e6 | 59 | strcat(pointer1, pointer2); /* Add on the entered file name to the root direcotry */ |
| DavidGilesHitex | 0:35c1800c59e6 | 60 | |
| DavidGilesHitex | 0:35c1800c59e6 | 61 | pc.printf("Opening the file: %s\n\r", file_name_with_root_and_path); /* Print the name including the root and path of the file */ |
| DavidGilesHitex | 0:35c1800c59e6 | 62 | wavfile = fopen(file_name_with_root_and_path,"r"); /* Attempt to open the file for read only*/ |
| DavidGilesHitex | 0:35c1800c59e6 | 63 | |
| DavidGilesHitex | 0:35c1800c59e6 | 64 | if (wavfile == 0 ) |
| DavidGilesHitex | 0:35c1800c59e6 | 65 | { |
| DavidGilesHitex | 0:35c1800c59e6 | 66 | /* Problems - can not open the file whos name we just inputed */ |
| DavidGilesHitex | 0:35c1800c59e6 | 67 | pc.printf("Unable to open wav file '%s'\n\r", file_name_with_root_and_path); |
| DavidGilesHitex | 0:35c1800c59e6 | 68 | pc.printf("Please try again\n\r"); |
| DavidGilesHitex | 0:35c1800c59e6 | 69 | } |
| DavidGilesHitex | 0:35c1800c59e6 | 70 | else{ |
| DavidGilesHitex | 0:35c1800c59e6 | 71 | /* ok file is now open - lets print the header file */ |
| DavidGilesHitex | 0:35c1800c59e6 | 72 | wave_file_check(wave_array, wavfile); |
| DavidGilesHitex | 0:35c1800c59e6 | 73 | } |
| DavidGilesHitex | 0:35c1800c59e6 | 74 | |
| DavidGilesHitex | 0:35c1800c59e6 | 75 | |
| DavidGilesHitex | 0:35c1800c59e6 | 76 | /* you can now access all of the .WAV header file information in a global structure called 'wave_file_info' */ |
| DavidGilesHitex | 0:35c1800c59e6 | 77 | /* the structure provides you with all the necessary information to manage sample rates and timings etc */ |
| DavidGilesHitex | 0:35c1800c59e6 | 78 | /* eg */ |
| DavidGilesHitex | 0:35c1800c59e6 | 79 | /* sample_rate = wave_file_info.samples_per_second; */ |
| DavidGilesHitex | 0:35c1800c59e6 | 80 | /* stereo_or_mono = wave_file_info.number_of_channels */ |
| DavidGilesHitex | 0:35c1800c59e6 | 81 | |
| DavidGilesHitex | 0:35c1800c59e6 | 82 | fclose(wavfile); /* Close the file */ |
| DavidGilesHitex | 0:35c1800c59e6 | 83 | } |
| DavidGilesHitex | 0:35c1800c59e6 | 84 | } |
| DavidGilesHitex | 0:35c1800c59e6 | 85 |