vincenzo di capua / Mbed OS HelloWorld_CCA01M1_mbedOS

funzionicchia

Dependencies:   Freetronics_16x2_LCD

Fork of HelloWorld_CCA01M1_mbedOS by STarks

main.cpp@12:d847a3c0cf76, 2018-01-10 (annotated)

Committer:
vidica94
Date:
Wed Jan 10 10:34:40 2018 +0000
Revision:
12:d847a3c0cf76
Parent:
7:94e3191477c5
Child:
14:244ec24ee6dd
d

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nikapov 0:8d09369ca839 1 #include "mbed.h"
vidica94 12:d847a3c0cf76 2 #include "FATFileSystem.h"
vidica94 12:d847a3c0cf76 3 #include "SDBlockDevice.h"
vidica94 12:d847a3c0cf76 4 #include <stdio.h>
vidica94 12:d847a3c0cf76 5 #include <errno.h>
vidica94 12:d847a3c0cf76 6 #include "freetronicsLCDShield.h"
nikapov 0:8d09369ca839 7 /* Helper header files. */
nikapov 0:8d09369ca839 8 #include "DevI2C.h"
nikapov 0:8d09369ca839 9
nikapov 0:8d09369ca839 10 /* Component specific header files. */
davide.aliprandi@st.com 5:ac729170df5f 11 #include "STA350BW.h"
nikapov 0:8d09369ca839 12
nikapov 0:8d09369ca839 13 /* My song header file. */
nikapov 0:8d09369ca839 14 #include "my_song.h"
nikapov 0:8d09369ca839 15
vidica94 12:d847a3c0cf76 16 SDBlockDevice bd(PA_7, PA_6, PA_5, PA_8);
vidica94 12:d847a3c0cf76 17 FATFileSystem fs("fs");
vidica94 12:d847a3c0cf76 18 freetronicsLCDShield lcd(D8, D9, D4, D5, D6, D2, D3, A0);
nikapov 0:8d09369ca839 19
nikapov 0:8d09369ca839 20 #define PLAY_STOP_EVENT (0x1)
nikapov 0:8d09369ca839 21
nikapov 0:8d09369ca839 22
nikapov 0:8d09369ca839 23 /* Variables -----------------------------------------------------------------*/
nikapov 0:8d09369ca839 24
nikapov 0:8d09369ca839 25 /* Initialization parameters. */
Davidroid 7:94e3191477c5 26 STA350BW_init_t init =
nikapov 0:8d09369ca839 27 {
nikapov 0:8d09369ca839 28 32000, /* Default Sampling Frequency [Hz]. */
nikapov 0:8d09369ca839 29 100 /* Default Volume. */
nikapov 0:8d09369ca839 30 };
nikapov 0:8d09369ca839 31
nikapov 0:8d09369ca839 32 /* Sound Terminal Component. */
nikapov 0:8d09369ca839 33 STA350BW *sound_terminal;
nikapov 0:8d09369ca839 34
nikapov 0:8d09369ca839 35 /* Thread to manage I2S peripherals. */
nikapov 0:8d09369ca839 36 static rtos::Thread i2s_bh_daemon;
nikapov 0:8d09369ca839 37
nikapov 0:8d09369ca839 38 /* Threads. */
nikapov 0:8d09369ca839 39 Thread *play_stop_thread;
nikapov 0:8d09369ca839 40
nikapov 0:8d09369ca839 41 /* User button handling. */
nikapov 0:8d09369ca839 42 InterruptIn event(USER_BUTTON);
nikapov 0:8d09369ca839 43
nikapov 0:8d09369ca839 44
nikapov 0:8d09369ca839 45 /* Functions -----------------------------------------------------------------*/
nikapov 0:8d09369ca839 46
nikapov 0:8d09369ca839 47 /**
nikapov 0:8d09369ca839 48 * @brief User button handler function.
nikapov 0:8d09369ca839 49 * @param None.
nikapov 0:8d09369ca839 50 * @retval None.
nikapov 0:8d09369ca839 51 */
nikapov 0:8d09369ca839 52 void pressed(void)
nikapov 0:8d09369ca839 53 {
nikapov 0:8d09369ca839 54 /* Signal to play/stop handler thread. */
nikapov 0:8d09369ca839 55 play_stop_thread->signal_set(PLAY_STOP_EVENT);
nikapov 0:8d09369ca839 56 }
nikapov 0:8d09369ca839 57
nikapov 0:8d09369ca839 58 /**
nikapov 0:8d09369ca839 59 * @brief Play/stop handler function.
nikapov 0:8d09369ca839 60 * @param None.
nikapov 0:8d09369ca839 61 * @retval None.
nikapov 0:8d09369ca839 62 */
davide.aliprandi@st.com 5:ac729170df5f 63 void play_stop_handler(void)
nikapov 0:8d09369ca839 64 {
nikapov 0:8d09369ca839 65 while (true)
nikapov 0:8d09369ca839 66 {
nikapov 0:8d09369ca839 67 static bool stop = true;
nikapov 0:8d09369ca839 68
nikapov 0:8d09369ca839 69 /* Waiting for play/stop events. */
nikapov 0:8d09369ca839 70 play_stop_thread->signal_wait(PLAY_STOP_EVENT);
nikapov 0:8d09369ca839 71
nikapov 0:8d09369ca839 72 if (stop)
davide.aliprandi@st.com 5:ac729170df5f 73 sound_terminal->stop();
nikapov 0:8d09369ca839 74 else
davide.aliprandi@st.com 5:ac729170df5f 75 sound_terminal->play((int16_t *) my_song, (uint16_t) sizeof(my_song), true);
nikapov 0:8d09369ca839 76 printf("--> %s\r\n", stop ? "Stop." : "Playing...");
nikapov 0:8d09369ca839 77
nikapov 0:8d09369ca839 78 stop = !stop;
nikapov 0:8d09369ca839 79 }
vidica94 12:d847a3c0cf76 80 }
vidica94 12:d847a3c0cf76 81
vidica94 12:d847a3c0cf76 82
vidica94 12:d847a3c0cf76 83
vidica94 12:d847a3c0cf76 84 void return_error(int ret_val){
vidica94 12:d847a3c0cf76 85 if (ret_val)
vidica94 12:d847a3c0cf76 86 printf("Failure. %d\r\n", ret_val);
vidica94 12:d847a3c0cf76 87 else
vidica94 12:d847a3c0cf76 88 printf("done.\r\n");
nikapov 0:8d09369ca839 89 }
nikapov 0:8d09369ca839 90
vidica94 12:d847a3c0cf76 91 void errno_error(void* ret_val){
vidica94 12:d847a3c0cf76 92 if (ret_val == NULL)
vidica94 12:d847a3c0cf76 93 printf(" Failure. %d \r\n", errno);
vidica94 12:d847a3c0cf76 94 else
vidica94 12:d847a3c0cf76 95 printf(" done.\r\n");
vidica94 12:d847a3c0cf76 96 }
vidica94 12:d847a3c0cf76 97
vidica94 12:d847a3c0cf76 98 int main() {
vidica94 12:d847a3c0cf76 99
vidica94 12:d847a3c0cf76 100 /*----- Initialization. -----*/
nikapov 0:8d09369ca839 101
nikapov 0:8d09369ca839 102 /* Initializing I2C bus. */
Davidroid 4:6bb9e11d322b 103 DevI2C *dev_i2c = new DevI2C(PB_9, PB_8);
nikapov 0:8d09369ca839 104
nikapov 0:8d09369ca839 105 /* Initializing Sound Terminal Component. */
nikapov 0:8d09369ca839 106 #ifndef USE_I2S2
nikapov 0:8d09369ca839 107 sound_terminal = new STA350BW(PA_10, STA350BW_ADDRESS_1, *dev_i2c, PB_15, PB_13, PB_12, NC, PC_6);
nikapov 0:8d09369ca839 108 #else
nikapov 0:8d09369ca839 109 sound_terminal = new STA350BW(PA_10, STA350BW_ADDRESS_2, *dev_i2c, PC_12, PC_10, PA_4, NC, PC_7);
nikapov 0:8d09369ca839 110 #endif
davide.aliprandi@st.com 5:ac729170df5f 111 if (sound_terminal->init(&init) != COMPONENT_OK)
nikapov 0:8d09369ca839 112 {
nikapov 0:8d09369ca839 113 error("Initialization of the Sound Terminal Expansion Board failed.\r\n");
nikapov 0:8d09369ca839 114 exit(EXIT_FAILURE);
nikapov 0:8d09369ca839 115 }
nikapov 0:8d09369ca839 116
nikapov 0:8d09369ca839 117 /* Starting a thread to manage I2S peripherals. */
nikapov 0:8d09369ca839 118 Callback<void()> i2s_bh_task(&I2S::i2s_bh_queue, &events::EventQueue::dispatch_forever);
nikapov 0:8d09369ca839 119 i2s_bh_daemon.start(i2s_bh_task);
nikapov 0:8d09369ca839 120
nikapov 0:8d09369ca839 121 /* Scheduling the play/stop function. */
nikapov 0:8d09369ca839 122 play_stop_thread = new Thread();
davide.aliprandi@st.com 5:ac729170df5f 123 osStatus status = play_stop_thread->start(play_stop_handler);
nikapov 0:8d09369ca839 124 if (status != osOK)
nikapov 0:8d09369ca839 125 printf("Could not start the play/stop handler thread.\r\n");
nikapov 0:8d09369ca839 126 event.fall(&pressed);
nikapov 0:8d09369ca839 127
nikapov 0:8d09369ca839 128 /* Setting Sound Terminal Component's parameters. */
davide.aliprandi@st.com 5:ac729170df5f 129 sound_terminal->set_frequency(MY_SONG_AUDIO_FREQUENCY);
davide.aliprandi@st.com 5:ac729170df5f 130 sound_terminal->set_volume(STA350BW_CHANNEL_MASTER, 60);
nikapov 0:8d09369ca839 131
nikapov 0:8d09369ca839 132 /* Printing to the console. */
nikapov 0:8d09369ca839 133 printf("Sound Terminal Application Example\r\n\n");
nikapov 0:8d09369ca839 134
vidica94 12:d847a3c0cf76 135
vidica94 12:d847a3c0cf76 136
vidica94 12:d847a3c0cf76 137
vidica94 12:d847a3c0cf76 138
vidica94 12:d847a3c0cf76 139
vidica94 12:d847a3c0cf76 140
vidica94 12:d847a3c0cf76 141
vidica94 12:d847a3c0cf76 142
vidica94 12:d847a3c0cf76 143
vidica94 12:d847a3c0cf76 144 // turn on the back light (it's off by default)
vidica94 12:d847a3c0cf76 145 lcd.setBackLight(true);
vidica94 12:d847a3c0cf76 146
vidica94 12:d847a3c0cf76 147 int error = 0;
vidica94 12:d847a3c0cf76 148 printf("Welcome to the filesystem example.\r\n"
vidica94 12:d847a3c0cf76 149 "Formatting a FAT, RAM-backed filesystem. ");
vidica94 12:d847a3c0cf76 150 //error = FATFileSystem::format(&bd);
vidica94 12:d847a3c0cf76 151 return_error(error);
nikapov 0:8d09369ca839 152
vidica94 12:d847a3c0cf76 153 printf("Mounting the filesystem on \"/fs\". ");
vidica94 12:d847a3c0cf76 154 error = fs.mount(&bd);
vidica94 12:d847a3c0cf76 155 return_error(error);
vidica94 12:d847a3c0cf76 156
vidica94 12:d847a3c0cf76 157 printf("Opening a new file, numbers.txt.");
vidica94 12:d847a3c0cf76 158 FILE* fd = fopen("/fs/numbers.txt", "w");
vidica94 12:d847a3c0cf76 159 errno_error(fd);
vidica94 12:d847a3c0cf76 160
vidica94 12:d847a3c0cf76 161 for (int i = 0; i < 20; i++){
vidica94 12:d847a3c0cf76 162 printf("Writing decimal numbers to a file (%d/20)\r", i);
vidica94 12:d847a3c0cf76 163 fprintf(fd, "%d\r\n", i);
vidica94 12:d847a3c0cf76 164 }
vidica94 12:d847a3c0cf76 165 printf("Writing decimal numbers to a file (20/20) done.\r\n");
vidica94 12:d847a3c0cf76 166
vidica94 12:d847a3c0cf76 167 printf("Closing file.");
vidica94 12:d847a3c0cf76 168 fclose(fd);
vidica94 12:d847a3c0cf76 169 printf(" done.\r\n");
nikapov 0:8d09369ca839 170
vidica94 12:d847a3c0cf76 171 printf("Re-opening file read-only.");
vidica94 12:d847a3c0cf76 172 fd = fopen("/fs/campagnola.wav", "r");
vidica94 12:d847a3c0cf76 173 errno_error(fd);
vidica94 12:d847a3c0cf76 174 char a;
vidica94 12:d847a3c0cf76 175 char c;
vidica94 12:d847a3c0cf76 176 printf("Dumping file to screen.\r\n");
vidica94 12:d847a3c0cf76 177 int buff[160] = {0};
vidica94 12:d847a3c0cf76 178 while (!feof(fd)){
vidica94 12:d847a3c0cf76 179 for( int i=0;i<160;i++){
vidica94 12:d847a3c0cf76 180 // printf("inizo file to screen.\r\n");
vidica94 12:d847a3c0cf76 181 fscanf( fd , "%c" , & a ) ;
vidica94 12:d847a3c0cf76 182 fscanf( fd , "%c" , & c) ;
vidica94 12:d847a3c0cf76 183 int b=(((int)a*256)+((int )c));
vidica94 12:d847a3c0cf76 184 b=b-32768;
vidica94 12:d847a3c0cf76 185 printf("%d \r\n",b);
vidica94 12:d847a3c0cf76 186 //printf ( "%c-" , a[1]) ;printf ( "%c\r\n" , a[0]) ;
vidica94 12:d847a3c0cf76 187 //printf("--> Playing...\r\n");
vidica94 12:d847a3c0cf76 188 //lcd.printf ( "%d " , a ) ;
nikapov 0:8d09369ca839 189
vidica94 12:d847a3c0cf76 190 buff[i]=b;
vidica94 12:d847a3c0cf76 191
vidica94 12:d847a3c0cf76 192 }
vidica94 12:d847a3c0cf76 193 int size=160;
vidica94 12:d847a3c0cf76 194 // int size = fread(&buff[0], 1, 159, fd);
vidica94 12:d847a3c0cf76 195 //fwrite(&buff[0], 1, size, stdout);
vidica94 12:d847a3c0cf76 196
vidica94 12:d847a3c0cf76 197 sound_terminal->play((int16_t *) buff, (uint16_t) sizeof(buff), true );
vidica94 12:d847a3c0cf76 198 }
vidica94 12:d847a3c0cf76 199 printf("EOF.\r\n");
vidica94 12:d847a3c0cf76 200
vidica94 12:d847a3c0cf76 201 printf("Closing file.");
vidica94 12:d847a3c0cf76 202 fclose(fd);
vidica94 12:d847a3c0cf76 203 printf(" done.\r\n");
nikapov 0:8d09369ca839 204
vidica94 12:d847a3c0cf76 205 printf("Opening root directory.");
vidica94 12:d847a3c0cf76 206 DIR* dir = opendir("/fs/");
vidica94 12:d847a3c0cf76 207 errno_error(fd);
vidica94 12:d847a3c0cf76 208
vidica94 12:d847a3c0cf76 209 struct dirent* de;
vidica94 12:d847a3c0cf76 210 printf("Printing all filenames:\r\n");
vidica94 12:d847a3c0cf76 211 while((de = readdir(dir)) != NULL){
vidica94 12:d847a3c0cf76 212 printf(" %s\r\n", &(de->d_name)[0]);
vidica94 12:d847a3c0cf76 213 }
vidica94 12:d847a3c0cf76 214
vidica94 12:d847a3c0cf76 215 printf("Closeing root directory. ");
vidica94 12:d847a3c0cf76 216 error = closedir(dir);
vidica94 12:d847a3c0cf76 217 return_error(error);
vidica94 12:d847a3c0cf76 218 printf("Filesystem Demo complete.\r\n");
vidica94 12:d847a3c0cf76 219
vidica94 12:d847a3c0cf76 220 while (true) {}
vidica94 12:d847a3c0cf76 221 }