ok connect pin 17 and 18 connect headphone to 18 joy up to record joy down to playback
Dependencies: FatFileSystem MSCFileSystem SDHCFileSystem mbed wavfile
Fork of SimpleWaveRecorderPlayer by
main.cpp@1:8604a6be9da1, 2014-03-14 (annotated)
- Committer:
- avnisha
- Date:
- Fri Mar 14 03:41:37 2014 +0000
- Revision:
- 1:8604a6be9da1
- Parent:
- 0:1a515b688b8c
ok
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
avnisha | 1:8604a6be9da1 | 1 | |
shintamainjp | 0:1a515b688b8c | 2 | |
shintamainjp | 0:1a515b688b8c | 3 | #include "mbed.h" |
avnisha | 1:8604a6be9da1 | 4 | #include "MSCFileSystem.h" |
shintamainjp | 0:1a515b688b8c | 5 | #include "wavfile.h" |
shintamainjp | 0:1a515b688b8c | 6 | |
avnisha | 1:8604a6be9da1 | 7 | DigitalIn record(p13); |
avnisha | 1:8604a6be9da1 | 8 | DigitalIn playback(p16); |
avnisha | 1:8604a6be9da1 | 9 | AnalogOut Aout(p18); |
avnisha | 1:8604a6be9da1 | 10 | AnalogIn pot1(p19); |
avnisha | 1:8604a6be9da1 | 11 | Timeout genTime; |
avnisha | 1:8604a6be9da1 | 12 | int genOn; |
avnisha | 1:8604a6be9da1 | 13 | |
avnisha | 1:8604a6be9da1 | 14 | |
avnisha | 1:8604a6be9da1 | 15 | float i = 0; |
avnisha | 1:8604a6be9da1 | 16 | void tickgen(void) |
avnisha | 1:8604a6be9da1 | 17 | { |
avnisha | 1:8604a6be9da1 | 18 | Aout = i; |
avnisha | 1:8604a6be9da1 | 19 | i = i + 0.1; |
avnisha | 1:8604a6be9da1 | 20 | if (i > 1.0) i = 0.0; |
avnisha | 1:8604a6be9da1 | 21 | } |
avnisha | 1:8604a6be9da1 | 22 | |
avnisha | 1:8604a6be9da1 | 23 | |
avnisha | 1:8604a6be9da1 | 24 | void genTimeout() { |
avnisha | 1:8604a6be9da1 | 25 | genOn = 0; |
avnisha | 1:8604a6be9da1 | 26 | } |
avnisha | 1:8604a6be9da1 | 27 | |
avnisha | 1:8604a6be9da1 | 28 | void generate() |
avnisha | 1:8604a6be9da1 | 29 | { |
avnisha | 1:8604a6be9da1 | 30 | while(genOn) { |
avnisha | 1:8604a6be9da1 | 31 | for(float i=0.0; i<1.0; i+=0.1) { |
avnisha | 1:8604a6be9da1 | 32 | Aout = i; |
avnisha | 1:8604a6be9da1 | 33 | wait(0.00001+(0.0001*pot1.read())); |
avnisha | 1:8604a6be9da1 | 34 | } |
avnisha | 1:8604a6be9da1 | 35 | } |
avnisha | 1:8604a6be9da1 | 36 | } |
avnisha | 1:8604a6be9da1 | 37 | |
avnisha | 1:8604a6be9da1 | 38 | |
shintamainjp | 0:1a515b688b8c | 39 | #define RAM_TOTAL 0x1000 |
shintamainjp | 0:1a515b688b8c | 40 | |
shintamainjp | 0:1a515b688b8c | 41 | AnalogOut dacout(p18); |
avnisha | 1:8604a6be9da1 | 42 | AnalogIn adcin(p17); |
shintamainjp | 0:1a515b688b8c | 43 | DigitalOut led_play_ok(LED1); |
shintamainjp | 0:1a515b688b8c | 44 | DigitalOut led_rec_ok(LED2); |
shintamainjp | 0:1a515b688b8c | 45 | |
shintamainjp | 0:1a515b688b8c | 46 | Timer timer; |
shintamainjp | 0:1a515b688b8c | 47 | Timer iometer; |
shintamainjp | 0:1a515b688b8c | 48 | Ticker ticker; |
avnisha | 1:8604a6be9da1 | 49 | Ticker tickgenerate; |
avnisha | 1:8604a6be9da1 | 50 | MSCFileSystem fs("fs"); |
shintamainjp | 0:1a515b688b8c | 51 | |
shintamainjp | 0:1a515b688b8c | 52 | float buffer[RAM_TOTAL]; |
shintamainjp | 0:1a515b688b8c | 53 | int rp = 0; |
shintamainjp | 0:1a515b688b8c | 54 | int wp = 0; |
shintamainjp | 0:1a515b688b8c | 55 | int dropout = 0; |
shintamainjp | 0:1a515b688b8c | 56 | |
shintamainjp | 0:1a515b688b8c | 57 | #define WAVFILE_ERROR_PRINT(RESULT) \ |
shintamainjp | 0:1a515b688b8c | 58 | do { \ |
shintamainjp | 0:1a515b688b8c | 59 | WavFileResult R = RESULT; \ |
shintamainjp | 0:1a515b688b8c | 60 | if (R != WavFileResultOK) { \ |
shintamainjp | 0:1a515b688b8c | 61 | char wavfile_error_print_text[BUFSIZ]; \ |
shintamainjp | 0:1a515b688b8c | 62 | wavfile_result_string(R, wavfile_error_print_text, sizeof(wavfile_error_print_text)); \ |
shintamainjp | 0:1a515b688b8c | 63 | printf("%s (code=%d)\r\n", wavfile_error_print_text, R); \ |
shintamainjp | 0:1a515b688b8c | 64 | return 1; \ |
shintamainjp | 0:1a515b688b8c | 65 | } \ |
shintamainjp | 0:1a515b688b8c | 66 | } while(0) |
shintamainjp | 0:1a515b688b8c | 67 | |
shintamainjp | 0:1a515b688b8c | 68 | void tickdummy(void) |
shintamainjp | 0:1a515b688b8c | 69 | { |
shintamainjp | 0:1a515b688b8c | 70 | } |
shintamainjp | 0:1a515b688b8c | 71 | |
shintamainjp | 0:1a515b688b8c | 72 | void tickplay(void) |
shintamainjp | 0:1a515b688b8c | 73 | { |
shintamainjp | 0:1a515b688b8c | 74 | /* |
shintamainjp | 0:1a515b688b8c | 75 | * Check the play underflow |
shintamainjp | 0:1a515b688b8c | 76 | */ |
shintamainjp | 0:1a515b688b8c | 77 | if (rp != wp) { |
shintamainjp | 0:1a515b688b8c | 78 | dacout = buffer[rp]; |
shintamainjp | 0:1a515b688b8c | 79 | rp = (rp + 1) & (RAM_TOTAL - 1); |
shintamainjp | 0:1a515b688b8c | 80 | } else { |
shintamainjp | 0:1a515b688b8c | 81 | dropout++; |
shintamainjp | 0:1a515b688b8c | 82 | } |
shintamainjp | 0:1a515b688b8c | 83 | led_play_ok = !led_play_ok; |
shintamainjp | 0:1a515b688b8c | 84 | } |
shintamainjp | 0:1a515b688b8c | 85 | |
shintamainjp | 0:1a515b688b8c | 86 | void tickrec(void) |
shintamainjp | 0:1a515b688b8c | 87 | { |
shintamainjp | 0:1a515b688b8c | 88 | /* |
shintamainjp | 0:1a515b688b8c | 89 | * Check the rec overflow |
shintamainjp | 0:1a515b688b8c | 90 | */ |
shintamainjp | 0:1a515b688b8c | 91 | int np = (wp + 1) & (RAM_TOTAL - 1); |
shintamainjp | 0:1a515b688b8c | 92 | if (np != rp) { |
shintamainjp | 0:1a515b688b8c | 93 | buffer[wp] = adcin; |
shintamainjp | 0:1a515b688b8c | 94 | wp = np; |
shintamainjp | 0:1a515b688b8c | 95 | } else { |
shintamainjp | 0:1a515b688b8c | 96 | dropout++; |
shintamainjp | 0:1a515b688b8c | 97 | } |
shintamainjp | 0:1a515b688b8c | 98 | led_rec_ok = !led_rec_ok; |
shintamainjp | 0:1a515b688b8c | 99 | } |
shintamainjp | 0:1a515b688b8c | 100 | |
shintamainjp | 0:1a515b688b8c | 101 | int play(const char *filename) |
shintamainjp | 0:1a515b688b8c | 102 | { |
shintamainjp | 0:1a515b688b8c | 103 | WavFileResult result; |
shintamainjp | 0:1a515b688b8c | 104 | wavfile_info_t info; |
shintamainjp | 0:1a515b688b8c | 105 | wavfile_data_t data; |
shintamainjp | 0:1a515b688b8c | 106 | |
shintamainjp | 0:1a515b688b8c | 107 | WAVFILE *wf = wavfile_open(filename, WavFileModeRead, &result); |
shintamainjp | 0:1a515b688b8c | 108 | WAVFILE_ERROR_PRINT(result); |
shintamainjp | 0:1a515b688b8c | 109 | WAVFILE_ERROR_PRINT(wavfile_read_info(wf, &info)); |
shintamainjp | 0:1a515b688b8c | 110 | |
avnisha | 1:8604a6be9da1 | 111 | //printf("[PLAY:%s]\r\n", filename); |
avnisha | 1:8604a6be9da1 | 112 | //printf("\tWAVFILE_INFO_AUDIO_FORMAT(&info) = %d\r\n", WAVFILE_INFO_AUDIO_FORMAT(&info)); |
avnisha | 1:8604a6be9da1 | 113 | //printf("\tWAVFILE_INFO_NUM_CHANNELS(&info) = %d\r\n", WAVFILE_INFO_NUM_CHANNELS(&info)); |
avnisha | 1:8604a6be9da1 | 114 | //printf("\tWAVFILE_INFO_SAMPLE_RATE(&info) = %d\r\n", WAVFILE_INFO_SAMPLE_RATE(&info)); |
avnisha | 1:8604a6be9da1 | 115 | //printf("\tWAVFILE_INFO_BYTE_RATE(&info) = %d\r\n", WAVFILE_INFO_BYTE_RATE(&info)); |
avnisha | 1:8604a6be9da1 | 116 | //printf("\tWAVFILE_INFO_BLOCK_ALIGN(&info) = %d\r\n", WAVFILE_INFO_BLOCK_ALIGN(&info)); |
avnisha | 1:8604a6be9da1 | 117 | //printf("\tWAVFILE_INFO_BITS_PER_SAMPLE(&info) = %d\r\n", WAVFILE_INFO_BITS_PER_SAMPLE(&info)); |
shintamainjp | 0:1a515b688b8c | 118 | |
shintamainjp | 0:1a515b688b8c | 119 | const int interval_us = 1000000 / WAVFILE_INFO_SAMPLE_RATE(&info); |
shintamainjp | 0:1a515b688b8c | 120 | |
shintamainjp | 0:1a515b688b8c | 121 | rp = 0; |
shintamainjp | 0:1a515b688b8c | 122 | wp = 0; |
shintamainjp | 0:1a515b688b8c | 123 | dropout = 0; |
shintamainjp | 0:1a515b688b8c | 124 | ticker.attach_us(tickplay, interval_us); |
shintamainjp | 0:1a515b688b8c | 125 | while (1) { |
shintamainjp | 0:1a515b688b8c | 126 | int np = (wp + 1) & (RAM_TOTAL - 1); |
shintamainjp | 0:1a515b688b8c | 127 | while (np == rp) { |
shintamainjp | 0:1a515b688b8c | 128 | wait_us(1); |
shintamainjp | 0:1a515b688b8c | 129 | } |
shintamainjp | 0:1a515b688b8c | 130 | WAVFILE_ERROR_PRINT(wavfile_read_data(wf, &data)); |
shintamainjp | 0:1a515b688b8c | 131 | if (WAVFILE_DATA_IS_END_OF_DATA(&data)) { |
shintamainjp | 0:1a515b688b8c | 132 | break; |
shintamainjp | 0:1a515b688b8c | 133 | } |
shintamainjp | 0:1a515b688b8c | 134 | buffer[wp] = WAVFILE_DATA_CHANNEL_DATA(&data, 0); |
shintamainjp | 0:1a515b688b8c | 135 | wp = np; |
shintamainjp | 0:1a515b688b8c | 136 | } |
shintamainjp | 0:1a515b688b8c | 137 | ticker.detach(); |
shintamainjp | 0:1a515b688b8c | 138 | dacout = 0.5; |
shintamainjp | 0:1a515b688b8c | 139 | led_play_ok = 0; |
shintamainjp | 0:1a515b688b8c | 140 | printf("\t-- Play done. (dropout=%d) --\r\n", dropout); |
shintamainjp | 0:1a515b688b8c | 141 | |
shintamainjp | 0:1a515b688b8c | 142 | WAVFILE_ERROR_PRINT(wavfile_close(wf)); |
shintamainjp | 0:1a515b688b8c | 143 | return 0; |
shintamainjp | 0:1a515b688b8c | 144 | } |
shintamainjp | 0:1a515b688b8c | 145 | |
shintamainjp | 0:1a515b688b8c | 146 | int rec(const char *filename, const int nsec) |
shintamainjp | 0:1a515b688b8c | 147 | { |
shintamainjp | 0:1a515b688b8c | 148 | WavFileResult result; |
shintamainjp | 0:1a515b688b8c | 149 | wavfile_info_t info; |
shintamainjp | 0:1a515b688b8c | 150 | wavfile_data_t data; |
shintamainjp | 0:1a515b688b8c | 151 | |
shintamainjp | 0:1a515b688b8c | 152 | WAVFILE_INFO_AUDIO_FORMAT(&info) = 1; |
shintamainjp | 0:1a515b688b8c | 153 | WAVFILE_INFO_NUM_CHANNELS(&info) = 1; |
shintamainjp | 0:1a515b688b8c | 154 | WAVFILE_INFO_SAMPLE_RATE(&info) = 11025; |
shintamainjp | 0:1a515b688b8c | 155 | WAVFILE_INFO_BYTE_RATE(&info) = 22050; |
shintamainjp | 0:1a515b688b8c | 156 | WAVFILE_INFO_BLOCK_ALIGN(&info) = 2; |
shintamainjp | 0:1a515b688b8c | 157 | WAVFILE_INFO_BITS_PER_SAMPLE(&info) = 16; |
shintamainjp | 0:1a515b688b8c | 158 | |
shintamainjp | 0:1a515b688b8c | 159 | WAVFILE *wf = wavfile_open(filename, WavFileModeWrite, &result); |
shintamainjp | 0:1a515b688b8c | 160 | WAVFILE_ERROR_PRINT(result); |
shintamainjp | 0:1a515b688b8c | 161 | WAVFILE_ERROR_PRINT(wavfile_write_info(wf, &info)); |
shintamainjp | 0:1a515b688b8c | 162 | |
avnisha | 1:8604a6be9da1 | 163 | //printf("[REC:%s]\r\n", filename); |
avnisha | 1:8604a6be9da1 | 164 | //printf("\tWAVFILE_INFO_AUDIO_FORMAT(&info) = %d\r\n", WAVFILE_INFO_AUDIO_FORMAT(&info)); |
avnisha | 1:8604a6be9da1 | 165 | //printf("\tWAVFILE_INFO_NUM_CHANNELS(&info) = %d\r\n", WAVFILE_INFO_NUM_CHANNELS(&info)); |
avnisha | 1:8604a6be9da1 | 166 | //printf("\tWAVFILE_INFO_SAMPLE_RATE(&info) = %d\r\n", WAVFILE_INFO_SAMPLE_RATE(&info)); |
avnisha | 1:8604a6be9da1 | 167 | //printf("\tWAVFILE_INFO_BYTE_RATE(&info) = %d\r\n", WAVFILE_INFO_BYTE_RATE(&info)); |
avnisha | 1:8604a6be9da1 | 168 | //printf("\tWAVFILE_INFO_BLOCK_ALIGN(&info) = %d\r\n", WAVFILE_INFO_BLOCK_ALIGN(&info)); |
avnisha | 1:8604a6be9da1 | 169 | //printf("\tWAVFILE_INFO_BITS_PER_SAMPLE(&info) = %d\r\n", WAVFILE_INFO_BITS_PER_SAMPLE(&info)); |
shintamainjp | 0:1a515b688b8c | 170 | |
shintamainjp | 0:1a515b688b8c | 171 | const int interval_us = 1000000 / WAVFILE_INFO_SAMPLE_RATE(&info); |
shintamainjp | 0:1a515b688b8c | 172 | const unsigned int samples_for_nsec = WAVFILE_INFO_SAMPLE_RATE(&info) * nsec; |
shintamainjp | 0:1a515b688b8c | 173 | |
shintamainjp | 0:1a515b688b8c | 174 | rp = 0; |
shintamainjp | 0:1a515b688b8c | 175 | wp = 0; |
shintamainjp | 0:1a515b688b8c | 176 | dropout = 0; |
shintamainjp | 0:1a515b688b8c | 177 | unsigned int count = 0; |
shintamainjp | 0:1a515b688b8c | 178 | ticker.attach_us(tickrec, interval_us); |
shintamainjp | 0:1a515b688b8c | 179 | WAVFILE_DATA_NUM_CHANNELS(&data) = 1; |
shintamainjp | 0:1a515b688b8c | 180 | while (1) { |
shintamainjp | 0:1a515b688b8c | 181 | while (rp == wp) { |
shintamainjp | 0:1a515b688b8c | 182 | wait_us(1); |
shintamainjp | 0:1a515b688b8c | 183 | } |
shintamainjp | 0:1a515b688b8c | 184 | |
shintamainjp | 0:1a515b688b8c | 185 | WAVFILE_DATA_CHANNEL_DATA(&data, 0) = buffer[rp]; |
shintamainjp | 0:1a515b688b8c | 186 | rp = (rp + 1) & (RAM_TOTAL - 1); |
shintamainjp | 0:1a515b688b8c | 187 | WAVFILE_ERROR_PRINT(wavfile_write_data(wf, &data)); |
shintamainjp | 0:1a515b688b8c | 188 | |
shintamainjp | 0:1a515b688b8c | 189 | count++; |
shintamainjp | 0:1a515b688b8c | 190 | if (count > samples_for_nsec) { |
shintamainjp | 0:1a515b688b8c | 191 | break; |
shintamainjp | 0:1a515b688b8c | 192 | } |
shintamainjp | 0:1a515b688b8c | 193 | } |
shintamainjp | 0:1a515b688b8c | 194 | ticker.detach(); |
shintamainjp | 0:1a515b688b8c | 195 | led_rec_ok = 0; |
shintamainjp | 0:1a515b688b8c | 196 | printf("\t-- Rec done. (dropout=%d) --\r\n", dropout); |
shintamainjp | 0:1a515b688b8c | 197 | |
shintamainjp | 0:1a515b688b8c | 198 | WAVFILE_ERROR_PRINT(wavfile_close(wf)); |
shintamainjp | 0:1a515b688b8c | 199 | return 0; |
shintamainjp | 0:1a515b688b8c | 200 | } |
shintamainjp | 0:1a515b688b8c | 201 | |
shintamainjp | 0:1a515b688b8c | 202 | |
shintamainjp | 0:1a515b688b8c | 203 | |
shintamainjp | 0:1a515b688b8c | 204 | int main(void) |
shintamainjp | 0:1a515b688b8c | 205 | { |
avnisha | 1:8604a6be9da1 | 206 | //printf("\r\n\r\n"); |
avnisha | 1:8604a6be9da1 | 207 | //printf("=======================================================\r\n"); |
avnisha | 1:8604a6be9da1 | 208 | //printf(" A simple wave recorder & player on mbed \r\n"); |
avnisha | 1:8604a6be9da1 | 209 | //printf(" Copyright(C) 2012 Shinichiro Nakamura (CuBeatSystems) \r\n"); |
avnisha | 1:8604a6be9da1 | 210 | //printf("=======================================================\r\n"); |
shintamainjp | 0:1a515b688b8c | 211 | |
shintamainjp | 0:1a515b688b8c | 212 | ticker.attach_us(tickdummy, 100); |
shintamainjp | 0:1a515b688b8c | 213 | wait(1); |
shintamainjp | 0:1a515b688b8c | 214 | ticker.detach(); |
shintamainjp | 0:1a515b688b8c | 215 | |
avnisha | 1:8604a6be9da1 | 216 | static const char *target_filename = "/fs/rec-test.wav"; |
avnisha | 1:8604a6be9da1 | 217 | |
avnisha | 1:8604a6be9da1 | 218 | while (1) { |
avnisha | 1:8604a6be9da1 | 219 | |
avnisha | 1:8604a6be9da1 | 220 | if (record == 1) { |
avnisha | 1:8604a6be9da1 | 221 | /* |
avnisha | 1:8604a6be9da1 | 222 | * generate data |
shintamainjp | 0:1a515b688b8c | 223 | */ |
avnisha | 1:8604a6be9da1 | 224 | |
avnisha | 1:8604a6be9da1 | 225 | genOn = 1; |
avnisha | 1:8604a6be9da1 | 226 | printf("gen/rec on\n"); |
avnisha | 1:8604a6be9da1 | 227 | tickgenerate.attach_us(tickgen, 10); |
avnisha | 1:8604a6be9da1 | 228 | rec(target_filename, 10); |
avnisha | 1:8604a6be9da1 | 229 | tickgenerate.detach(); |
avnisha | 1:8604a6be9da1 | 230 | printf("gen/rec off\n"); |
avnisha | 1:8604a6be9da1 | 231 | } |
avnisha | 1:8604a6be9da1 | 232 | |
avnisha | 1:8604a6be9da1 | 233 | if (playback == 1) { |
avnisha | 1:8604a6be9da1 | 234 | |
shintamainjp | 0:1a515b688b8c | 235 | /* |
shintamainjp | 0:1a515b688b8c | 236 | * Play it! |
shintamainjp | 0:1a515b688b8c | 237 | */ |
avnisha | 1:8604a6be9da1 | 238 | printf("play on\n"); |
shintamainjp | 0:1a515b688b8c | 239 | if (play(target_filename) != 0) { |
shintamainjp | 0:1a515b688b8c | 240 | break; |
shintamainjp | 0:1a515b688b8c | 241 | } |
avnisha | 1:8604a6be9da1 | 242 | printf("play off\n"); |
shintamainjp | 0:1a515b688b8c | 243 | } |
shintamainjp | 0:1a515b688b8c | 244 | } |
shintamainjp | 0:1a515b688b8c | 245 | |
shintamainjp | 0:1a515b688b8c | 246 | return 0; |
shintamainjp | 0:1a515b688b8c | 247 | } |