Lawrence Quizon / DEMOBOARD

Headers for MAX32630FTHR Demo Board sample programs

generalinterface.cpp@0:a6a8578e95af, 2019-07-30 (annotated)

Committer:
Lugs
Date:
Tue Jul 30 02:44:30 2019 +0000
Revision:
0:a6a8578e95af
actually working header-using version of mini piano player

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Lugs 0:a6a8578e95af 1 #include "generalinterface.h"
Lugs 0:a6a8578e95af 2
Lugs 0:a6a8578e95af 3 Serial daplink(P2_1,P2_0);
Lugs 0:a6a8578e95af 4 USBSerial microUSB;
Lugs 0:a6a8578e95af 5 SDBlockDevice bd(P0_5, P0_6, P0_4, P0_7);
Lugs 0:a6a8578e95af 6 FATFileSystem fs("fs");
Lugs 0:a6a8578e95af 7 USBMSD_BD msd(&bd);
Lugs 0:a6a8578e95af 8
Lugs 0:a6a8578e95af 9 void clearSerialStream()
Lugs 0:a6a8578e95af 10 {
Lugs 0:a6a8578e95af 11 char c;
Lugs 0:a6a8578e95af 12 while(daplink.readable()) {
Lugs 0:a6a8578e95af 13 c = daplink.getc();
Lugs 0:a6a8578e95af 14 wait_ms(1);
Lugs 0:a6a8578e95af 15 }
Lugs 0:a6a8578e95af 16 }
Lugs 0:a6a8578e95af 17
Lugs 0:a6a8578e95af 18 bool getInput(int maxSize,char *inputArray)
Lugs 0:a6a8578e95af 19 {
Lugs 0:a6a8578e95af 20 int i;
Lugs 0:a6a8578e95af 21 char c;
Lugs 0:a6a8578e95af 22 clearSerialStream();
Lugs 0:a6a8578e95af 23 for(i=0; i<maxSize && c!='\r'; i++) {
Lugs 0:a6a8578e95af 24 c = daplink.getc();
Lugs 0:a6a8578e95af 25 daplink.putc(c);
Lugs 0:a6a8578e95af 26 inputArray[i] = c;
Lugs 0:a6a8578e95af 27 }
Lugs 0:a6a8578e95af 28 if(i == maxSize) {
Lugs 0:a6a8578e95af 29 return 0;
Lugs 0:a6a8578e95af 30 } else {
Lugs 0:a6a8578e95af 31 return 1;
Lugs 0:a6a8578e95af 32 }
Lugs 0:a6a8578e95af 33 }
Lugs 0:a6a8578e95af 34
Lugs 0:a6a8578e95af 35 void startFileSystem()
Lugs 0:a6a8578e95af 36 {
Lugs 0:a6a8578e95af 37 printf("\f---STARTING FILESYSTEM...---\r\n");
Lugs 0:a6a8578e95af 38
Lugs 0:a6a8578e95af 39 Thread::wait(100);
Lugs 0:a6a8578e95af 40
Lugs 0:a6a8578e95af 41 // Try to mount the filesystem
Lugs 0:a6a8578e95af 42 printf("Mounting the filesystem... ");
Lugs 0:a6a8578e95af 43 fflush(stdout);
Lugs 0:a6a8578e95af 44 int err = fs.mount(&bd);
Lugs 0:a6a8578e95af 45 printf("%s\r\n", (err ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 46 if (err) {
Lugs 0:a6a8578e95af 47 // Reformat if we can't mount the filesystem
Lugs 0:a6a8578e95af 48 // this should only happen on the first boot
Lugs 0:a6a8578e95af 49 printf("No filesystem found, formatting... ");
Lugs 0:a6a8578e95af 50 fflush(stdout);
Lugs 0:a6a8578e95af 51 err = fs.reformat(&bd);
Lugs 0:a6a8578e95af 52 printf("%s\r\n", (err ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 53 }
Lugs 0:a6a8578e95af 54
Lugs 0:a6a8578e95af 55 // Open the numbers file
Lugs 0:a6a8578e95af 56 printf("Opening \"/fs/numbers.txt\"... ");
Lugs 0:a6a8578e95af 57 fflush(stdout);
Lugs 0:a6a8578e95af 58 FILE *f = fopen("/fs/numbers.txt", "r+");
Lugs 0:a6a8578e95af 59 printf("%s\r\n", (!f ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 60 if (!f) {
Lugs 0:a6a8578e95af 61 // Create the numbers file if it doesn't exist
Lugs 0:a6a8578e95af 62 printf("No file found, creating a new file... ");
Lugs 0:a6a8578e95af 63 fflush(stdout);
Lugs 0:a6a8578e95af 64 f = fopen("/fs/numbers.txt", "w+");
Lugs 0:a6a8578e95af 65 printf("%s\r\n", (!f ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 66
Lugs 0:a6a8578e95af 67 for (int i = 0; i < 10; i++) {
Lugs 0:a6a8578e95af 68 printf("\rWriting numbers (%d/%d)... ", i, 10);
Lugs 0:a6a8578e95af 69 fflush(stdout);
Lugs 0:a6a8578e95af 70 err = fprintf(f, " %d\r\n", i);
Lugs 0:a6a8578e95af 71 if (err < 0) {
Lugs 0:a6a8578e95af 72 printf("Fail :(\r\n");
Lugs 0:a6a8578e95af 73 }
Lugs 0:a6a8578e95af 74 }
Lugs 0:a6a8578e95af 75 printf("\rWriting numbers (%d/%d)... OK\r\n", 10, 10);
Lugs 0:a6a8578e95af 76
Lugs 0:a6a8578e95af 77 printf("Seeking file... ");
Lugs 0:a6a8578e95af 78 fflush(stdout);
Lugs 0:a6a8578e95af 79 err = fseek(f, 0, SEEK_SET);
Lugs 0:a6a8578e95af 80 printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 81 }
Lugs 0:a6a8578e95af 82
Lugs 0:a6a8578e95af 83 // Go through and increment the numbers
Lugs 0:a6a8578e95af 84 for (int i = 0; i < 10; i++) {
Lugs 0:a6a8578e95af 85 printf("\rIncrementing numbers (%d/%d)... ", i, 10);
Lugs 0:a6a8578e95af 86 fflush(stdout);
Lugs 0:a6a8578e95af 87
Lugs 0:a6a8578e95af 88 // Get current stream position
Lugs 0:a6a8578e95af 89 long pos = ftell(f);
Lugs 0:a6a8578e95af 90
Lugs 0:a6a8578e95af 91 // Parse out the number and increment
Lugs 0:a6a8578e95af 92 int32_t number;
Lugs 0:a6a8578e95af 93 fscanf(f, "%d", &number);
Lugs 0:a6a8578e95af 94 number += 1;
Lugs 0:a6a8578e95af 95
Lugs 0:a6a8578e95af 96 // Seek to beginning of number
Lugs 0:a6a8578e95af 97 fseek(f, pos, SEEK_SET);
Lugs 0:a6a8578e95af 98
Lugs 0:a6a8578e95af 99 // Store number
Lugs 0:a6a8578e95af 100 fprintf(f, " %d\r\n", number);
Lugs 0:a6a8578e95af 101 }
Lugs 0:a6a8578e95af 102 printf("\rIncrementing numbers (%d/%d)... OK\r\n", 10, 10);
Lugs 0:a6a8578e95af 103
Lugs 0:a6a8578e95af 104 // Close the file which also flushes any cached writes
Lugs 0:a6a8578e95af 105 printf("Closing \"/fs/numbers.txt\"... ");
Lugs 0:a6a8578e95af 106 fflush(stdout);
Lugs 0:a6a8578e95af 107 err = fclose(f);
Lugs 0:a6a8578e95af 108 printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 109
Lugs 0:a6a8578e95af 110 // Display the root directory
Lugs 0:a6a8578e95af 111 printf("Opening the root directory... ");
Lugs 0:a6a8578e95af 112 fflush(stdout);
Lugs 0:a6a8578e95af 113 DIR *d = opendir("/fs/");
Lugs 0:a6a8578e95af 114 printf("%s\r\n", (!d ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 115
Lugs 0:a6a8578e95af 116 printf("root directory:\r\n");
Lugs 0:a6a8578e95af 117 while (true) {
Lugs 0:a6a8578e95af 118 struct dirent *e = readdir(d);
Lugs 0:a6a8578e95af 119 if (!e) {
Lugs 0:a6a8578e95af 120 break;
Lugs 0:a6a8578e95af 121 }
Lugs 0:a6a8578e95af 122 printf(" %s\r\n", e->d_name);
Lugs 0:a6a8578e95af 123 }
Lugs 0:a6a8578e95af 124
Lugs 0:a6a8578e95af 125 printf("Closing the root directory... ");
Lugs 0:a6a8578e95af 126 fflush(stdout);
Lugs 0:a6a8578e95af 127 err = closedir(d);
Lugs 0:a6a8578e95af 128 printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 129
Lugs 0:a6a8578e95af 130 // Display the numbers file
Lugs 0:a6a8578e95af 131 printf("Opening \"/fs/numbers.txt\"... ");
Lugs 0:a6a8578e95af 132 fflush(stdout);
Lugs 0:a6a8578e95af 133 f = fopen("/fs/numbers.txt", "r");
Lugs 0:a6a8578e95af 134 printf("%s\r\n", (!f ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 135
Lugs 0:a6a8578e95af 136 printf("numbers:\r\n");
Lugs 0:a6a8578e95af 137 while (!feof(f)) {
Lugs 0:a6a8578e95af 138 int c = fgetc(f);
Lugs 0:a6a8578e95af 139 printf("%c", c);
Lugs 0:a6a8578e95af 140 }
Lugs 0:a6a8578e95af 141
Lugs 0:a6a8578e95af 142 printf("\rClosing \"/fs/numbers.txt\"... ");
Lugs 0:a6a8578e95af 143 fflush(stdout);
Lugs 0:a6a8578e95af 144 err = fclose(f);
Lugs 0:a6a8578e95af 145 printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 146
Lugs 0:a6a8578e95af 147
Lugs 0:a6a8578e95af 148
Lugs 0:a6a8578e95af 149
Lugs 0:a6a8578e95af 150 // Switch to MSD
Lugs 0:a6a8578e95af 151 // printf("Unmounting... ");
Lugs 0:a6a8578e95af 152 // fflush(stdout);
Lugs 0:a6a8578e95af 153 // err = fs.unmount();
Lugs 0:a6a8578e95af 154 // printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 155
Lugs 0:a6a8578e95af 156
Lugs 0:a6a8578e95af 157 printf("Starting MSD... ");
Lugs 0:a6a8578e95af 158 msd.disk_initialize();
Lugs 0:a6a8578e95af 159 err = msd.connect();
Lugs 0:a6a8578e95af 160 printf("%s\r\n", (err < 0 ? "Fail :(" : "OK"));
Lugs 0:a6a8578e95af 161 }