2pipo
Joined: 07 Mar 2017
Posts: 2
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| SD file error |
 Posted: Sat Apr 22, 2017 8:57 am |
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Hi there
I'm creating a project in which I save data into a SD card. I'm using PIC 18f2685 and 4.104 version of the CCS.
I also use a system to communicate from the 5V pic to the 3.3V SD.
I'm using the libraries from CCS (fat.c and mmcsd.c)
The problem that i have is that I have a maximum size of file which is about 450 characters. Do you know how can I solve it?
Here is the code:
| Code: |
/*
Coses a fer:
Preparar per rebre dades des de portàtil==> Fet
Crear arxiu nou diferent cada cop==> Fet
Optimització sistema guardar dades
*/
#include "C:\Users\pau_v\Dropbox\Pau\Estudis\Formula Student 2016-2017\TFG\programa_final\main.h"
#define CAN_USE_EXTENDED_ID FALSE
#include <can-18xxx8.c>
#use rs232(baud=115200, UART1)
char mystring[20];
char myss[15];
int i = 0,alta = 1,alta_ant=0,transmetre = 0;
int k = 0;
int kk=0;
int16 num = 0;
int8 index=0,indexx=0;
unsigned int16 cobid=0;
unsigned int8 lengthCAN=0;
//char filleName[15] = "file.txt";
long long mylong;
char *fileName;
unsigned int8 array[10][150];
unsigned int Total_v=0,Min_v=0,Max_v=0,Min_t=0,Max_t=0,Min_l=0,Max_l=0,Throtle_1=0,Throtle_2=0,Brake=0,Steering=0,Sus_d_e=0,Sus_d_d=0,Sus_r_e=0,Sus_r_d=0,Shut_1=0,Vel_d_d=0,Vel_d_e=0;
char g_CWD[2] = "/";
int m = 0;
char nume;
int1 variable;
int t=0;
int ttt = 0;
int counter_msg=0;
int1 can0x80=0;
int1 can0x91=0;
#int_canrx0
void canrx0_int ( ) {
k++;
cobid=((unsigned int16)RXB0SIDH << 3)|((RXB0SIDL & 0xE0)>>5);
lengthCAN = (unsigned int8)RXB0DLC & 0xF;
array[0][k]=cobid;
array[1][k]=lengthCAN;
array[2][k]=RXB0D0;
array[3][k]=RXB0D1;
array[4][k]=RXB0D2;
array[5][k]=RXB0D3;
array[6][k]=RXB0D4;
array[7][k]=RXB0D5;
array[8][k]=RXB0D6;
array[9][k]=RXB0D7;
if(cobid == 0x80){
ttt=1;
can0x80=1;
kk=1;
index++;
indexx++;
if(indexx >= 20){
indexx =0;
}
if(index >= 10){
index = 0;
}
variable = RXB0D0;
//delay_ms(8);
}
if(cobid == 0x91){//Votatge
can0x91=1;
Min_v=make16(RXB0D0,RXB0D1);
Max_v=make16(RXB0D2,RXB0D3);
Total_v=make32(RXB0D4,RXB0D5,RXB0D6,RXB0D7);
}
if(cobid == 0x92){//Sensors pedals i direcció
Throtle_1 = make16(RXB0D0,RXB0D1);
Throtle_2 = make16(RXB0D2,RXB0D3);
Brake = make16(RXB0D4,RXB0D5);
Steering = make16(RXB0D6,RXB0D7);
}
if(cobid == 0x93){//Sensors suspensió i velocitat
Sus_d_d = make16(RXB0D0,RXB0D1);
Sus_d_e = make16(RXB0D2,RXB0D3);
Vel_d_d = RXB0D4;
Vel_d_e = RXB0D5;
}
if(cobid == 0x94){//Shutdown i info inversors
Shut_1 = RXB0D0;
}
//if(cobid == 0x95)//Accelerometre, giro, susp darrera
if(cobid == 0x97){//Temp package, current
Min_t = make16(RXB0D0,RXB0D1);
Max_t = make16(RXB0D2,RXB0D3);
Min_l = make16(RXB0D4,RXB0D5);
Max_l = make16(RXB0D6,RXB0D7);
}
if(cobid == 0x90)//engegar alta,guardar o transmetre
if(cobid == 0x96){//Susp rera
Sus_r_d = make16(RXB0D0,RXB0D1);
Sus_r_e = make16(RXB0D2,RXB0D3);
}
RXB0CON.RXFUL = 0;
}
#include <stdlib.h> // for atoi32
//meda library, a compatable media library is required for FAT.
#use fast_io(c)
#include "mmcsd.c"
#include "fat.c"
#include <input.c>
//////////////////////
/// ///
/// Useful Defines ///
/// ///
//////////////////////
#define COMMAND_SIZE 10
#define NUM_COMMANDS 13*/
////////////////////////
/// ///
/// Global Variables ///
/// ///
////////////////////////
//Make file
void MakeFile(char *fileName)
{
printf("\r\nMaking file '%s': ", fileName);
if(mk_file(fileName) != GOODEC)
{
printf("Error creating file");
return;
}
printf("OK");
}
// Print file
void PrintFile(char *fileName){
FILE stream;
if(fatopen(fileName, 'r', &stream) != GOODEC)
{
printf("\r\nError opening file");
return;
}
printf("\r\n");
fatprintf(&stream);
fatclose(&stream);
}
//Display la info
void DisplayDirectory(char *dir)
{
disp_folder_contents(dir);
}
void main(){
disable_interrupts(GLOBAL);
can_init();
can_set_mode(CAN_OP_CONFIG);
BRGCON1.brp=1;
BRGCON1.sjw=1;
BRGCON2.prseg=2;
BRGCON2.seg1ph=7;
BRGCON2.sam=FALSE;
BRGCON2.seg2phts=FALSE;
BRGCON3.seg2ph=6;
BRGCON3.wakfil=FALSE;
CIOCON = 0x20;
can_set_mode(CAN_OP_NORMAL);
delay_ms(1000);
char fileName[25];
int i; // pointer to the buffer
i = fat_init();
if (i){
printf("\r\n\nERROR INITIALIZING FAT\r\n\n");
output_low(PIN_A5);
}
else{
printf("\r\n\n FAT INITIALIZED\r\n\n");
output_high(PIN_A5);
}
DisplayDirectory(g_CWD);
//m=23;
sprintf(nume,"%u",m);
//fileName = "file";
strcpy(mystring,g_CWD);
//strcat(mystring,fileName);
strcat(mystring,nume);
/*fileName=".txt";
strcat(mystring,fileName);*/
FILE stream;
MakeFile(mystring);
enable_interrupts(int_canrx0);
enable_interrupts(GLOBAL);
while(true){
output_bit(PIN_A2,variable);
if(transmetre == 1){
PrintFile(mystring);
}
if(indexx=8 && can0x80==1 && can0x91==1){
can0x80=0;
can0x91=0;
}
alta_ant=alta;
if(index == 9 & alta == 1 & kk==1){//en l'instant 9 guarda les dades que han passat durant tot el mig segon
kk=0;
can0x80=0;
can0x91=0;
t=1;
counter_msg++;
if(fatopen(mystring, "a", &stream) != GOODEC){
printf("Error opening file");
return;
}
else{
printf("Open");
}
for(i=0;i<k;i++){
for(num = 0; num<=9; num++){
sprintf(myss,"%u",array[num][i]);
fatputs(myss, &stream);
fatputs(",", &stream);
array[num][i]=0;
}
fatputs("\r\n", &stream);
}
sprintf(myss,"%u",counter_msg);
fatputs(myss, &stream);
fatputs("\r\n", &stream);
k=0;
/*fileName = "file";
strcpy(mystring,g_CWD);
strcat(mystring,fileName);
strcat(mystring,nume);
fileName=".txt";
strcat(mystring,fileName);*/
}
if((index == 0 | (alta==0 & alta_ant==1 )) & kk==1 & t==1){//al començar el següent segon tanca l'arxiu. Aixó es fa perque duri menys de 50 ms tota l'operació de guardar dades.
kk=0;
can0x80=0;
can0x91=0;
if(fatclose(&stream) != GOODEC)
{
printf("Error closing file");
return;
}
printf("Close");
}
if(ttt==1){
printf("%u",alta);
printf(",");
printf("%u",k);
printf(",");
printf("%u",index);
printf(",");
printf("%u",kk);
printf(",");
printf("%u",can0x80);
printf(",");
printf("%u",can0x91);
printf(",");
printf("%u",array[2][k]);
printf("\r\n");
ttt=0;
}
}
}
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