skydarc meneldoll / Mbed OS test_TFT_11_v5

test st7735 on lpc1768 with mbed v5. bug with spi frequency...

TAR/tar.cpp@2:2946f9eefcae, 2020-04-08 (annotated)

Committer:
skydarc
Date:
Wed Apr 08 15:00:13 2020 +0000
Revision:
2:2946f9eefcae
Parent:
1:121b61eeffe7 
v2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
skydarc 1:121b61eeffe7 1 #include "mbed.h"
skydarc 1:121b61eeffe7 2 #include "tar.h"
skydarc 1:121b61eeffe7 3
skydarc 1:121b61eeffe7 4 FILE* fopenTar(char *tarfile, char *namefile) {
skydarc 1:121b61eeffe7 5
skydarc 1:121b61eeffe7 6 int i;
skydarc 1:121b61eeffe7 7 char buf[32];
skydarc 1:121b61eeffe7 8 char sizeStr[12];
skydarc 1:121b61eeffe7 9 char *valExit = "error";
skydarc 1:121b61eeffe7 10 int size, offset = 0;
skydarc 1:121b61eeffe7 11
skydarc 1:121b61eeffe7 12 FILE *Tar = fopen(tarfile, "r");
skydarc 1:121b61eeffe7 13
skydarc 1:121b61eeffe7 14 while(!feof(Tar)) {
skydarc 1:121b61eeffe7 15 for(i=0; i <= strlen(namefile); i++) buf[i] = fgetc(Tar);
skydarc 1:121b61eeffe7 16
skydarc 1:121b61eeffe7 17 if(!strcmp(buf, namefile)) {
skydarc 1:121b61eeffe7 18 valExit = "";
skydarc 1:121b61eeffe7 19 break;
skydarc 1:121b61eeffe7 20 }
skydarc 1:121b61eeffe7 21
skydarc 1:121b61eeffe7 22 fseek(Tar , 124+offset , SEEK_SET);
skydarc 1:121b61eeffe7 23 for(i=0; i < 12; i++) sizeStr[i] = fgetc(Tar);
skydarc 1:121b61eeffe7 24 //printf("size string: %s; octal: %d; dec.: %x\n", sizeStr, atoi(sizeStr), oct2dec(atoi(sizeStr)) );
skydarc 1:121b61eeffe7 25
skydarc 1:121b61eeffe7 26 size = oct2dec(atoi(sizeStr));
skydarc 1:121b61eeffe7 27 if(offset % 512 != 0) offset += (size/512 + 2)*512;
skydarc 1:121b61eeffe7 28 else offset += (size/512 + 1)*512;
skydarc 1:121b61eeffe7 29
skydarc 1:121b61eeffe7 30 fseek(Tar , offset , SEEK_SET);
skydarc 1:121b61eeffe7 31 }
skydarc 1:121b61eeffe7 32
skydarc 1:121b61eeffe7 33 if(valExit == "error") {
skydarc 1:121b61eeffe7 34 printf("file \"%s\" not find in tar\n", namefile);
skydarc 1:121b61eeffe7 35 return NULL;
skydarc 1:121b61eeffe7 36 } else {
skydarc 1:121b61eeffe7 37 fseek(Tar, offset+512 , SEEK_SET);
skydarc 1:121b61eeffe7 38 return Tar;
skydarc 1:121b61eeffe7 39 }
skydarc 1:121b61eeffe7 40 }
skydarc 1:121b61eeffe7 41
skydarc 1:121b61eeffe7 42 int oct2dec(int n) /* Function to convert octal to decimal */
skydarc 1:121b61eeffe7 43 {
skydarc 1:121b61eeffe7 44 int decimal=0, i=0, rem;
skydarc 1:121b61eeffe7 45 while (n!=0)
skydarc 1:121b61eeffe7 46 {
skydarc 1:121b61eeffe7 47 rem = n%10;
skydarc 1:121b61eeffe7 48 n/=10;
skydarc 1:121b61eeffe7 49 decimal += rem*pow(8.0,i);
skydarc 1:121b61eeffe7 50 ++i;
skydarc 1:121b61eeffe7 51 }
skydarc 1:121b61eeffe7 52 return decimal;
skydarc 1:121b61eeffe7 53 }