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main.c
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main.c
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/*
I forked from here.
https://github.com/0xJoey/Arduino_93C46
93C46 cc -o main main.c 93Cx6.c -lwiringPi -DC46 [-DWORD/-DBYTE]
93C56 cc -o main main.c 93Cx6.c -lwiringPi -DC56 [-DWORD/-DBYTE]
93C66 cc -o main main.c 93Cx6.c -lwiringPi -DC66 [-DWORD/-DBYTE]
93C76 cc -o main main.c 93Cx6.c -lwiringPi -DC76 [-DWORD/-DBYTE]
93C86 cc -o main main.c 93Cx6.c -lwiringPi -DC86 [-DWORD/-DBYTE]
*/
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <wiringPi.h>
#include "93Cx6.h"
#define pCS 10
#define pSK 14
#define pDI 12 // MOSI
#define pDO 13 // MISO
void dump(char * title, int bits, uint16_t *dt, uint16_t n) {
int clm = 0;
uint16_t data;
uint16_t saddr =0;
uint16_t eaddr =n-1;
printf("-------------------- [%s] --------------------\n", title);
uint16_t addr;
for (addr = saddr; addr <= eaddr; addr++) {
data = dt[addr];
if (clm == 0) {
printf("%05x: ",addr);
}
if (bits == 8) printf("%02x ",data);
if (bits == 16) printf("%04x ",data);
clm++;
if (bits == 8 && clm == 16) {
printf("\n");
clm = 0;
}
if (bits == 16 && clm == 8) {
printf("\n");
clm = 0;
}
}
printf("-------------------- [%s] --------------------\n", title);
}
void org8Mode(struct eeprom * dev, int bytes) {
uint16_t mem_addr;
uint16_t data;
uint16_t rdata[128];
int i;
// erase/write enable
eeprom_ew_enable(dev);
// erase all memory
eeprom_erase_all(dev);
// write same data
eeprom_write_all(dev, 0x00);
#if 0
// read first blcok 8bit mode
memset(rdata, 0, sizeof(rdata));
for(i=0;i<128;i++) {
mem_addr = i;
rdata[i] = eeprom_read(dev, mem_addr);
}
dump("8bit:address 0-128", 8, rdata, 128);
#endif
// write first blcok 8bit mode
for(i=0;i<128;i++) {
mem_addr = i;
data = i;
eeprom_write(dev, mem_addr, data);
}
// read first blcok 8bit mode
memset(rdata, 0, sizeof(rdata));
for(i=0;i<128;i++) {
mem_addr = i;
rdata[i] = eeprom_read(dev, mem_addr);
}
dump("8bit:address 0-128", 8, rdata, 128);
// write last blcok 8bit mode
for(i=0;i<128;i++) {
mem_addr = bytes - i;
data = 128-i;
eeprom_write(dev, mem_addr, data);
}
// read last blcok 8bit mode
memset(rdata, 0, sizeof(rdata));
for(i=0;i<128;i++) {
mem_addr = bytes - i;
rdata[i] = eeprom_read(dev, mem_addr);
}
char title[64];
sprintf(title,"8bit:address %d-%d", bytes-128, bytes);
//dump("8bit:address 0-128", 8, rdata, 128);
dump(title, 8, rdata, 128);
}
void org16Mode(struct eeprom * dev, int bytes) {
uint16_t mem_addr;
uint16_t data;
uint16_t rdata[128];
int i;
// erase/write enable
eeprom_ew_enable(dev);
// erase all memory
eeprom_erase_all(dev);
// write same data
eeprom_write_all(dev, 0x00);
#if 0
// read first blcok 16bit mode
memset(rdata, 0, sizeof(rdata));
for(i=0;i<64;i++) {
mem_addr = i;
rdata[i] = eeprom_read(dev, mem_addr);
}
dump("16bit:address 0-64", 16, rdata, 64);
#endif
// write first blcok 16bit mode
for(i=0;i<64;i++) {
mem_addr = i;
data = i + 0xFF00;
eeprom_write(dev, mem_addr, data);
}
// read last blcok 16bit mode
memset(rdata, 0, sizeof(rdata));
for(i=0;i<64;i++) {
mem_addr = i;
rdata[i] = eeprom_read(dev, mem_addr);
}
dump("16bit:address 0-64", 16, rdata, 64);
// write first blcok 16bit mode
for(i=0;i<64;i++) {
mem_addr = i;
data = 0xFFFF - i;
eeprom_write(dev, mem_addr, data);
}
// read last blcok 16bit mode
memset(rdata, 0, sizeof(rdata));
for(i=0;i<64;i++) {
mem_addr = i;
rdata[i] = eeprom_read(dev, mem_addr);
}
char title[64];
sprintf(title,"16bit:address %d-%d", bytes-64, bytes);
//dump("16bit:address 0-64", 16, rdata, 64);
dump(title, 16, rdata, 64);
}
int main(int argc, char *argv[])
{
// set EEPROM memory size
int eeprom_model = 0;
#ifdef C46
eeprom_model = 46;
#endif
#ifdef C56
eeprom_model = 56;
#endif
#ifdef C66
eeprom_model = 66;
#endif
#ifdef C76
eeprom_model = 76;
#endif
#ifdef C86
eeprom_model = 86;
#endif
//printf("eeprom_model=%d\n",eeprom_model);
if (eeprom_model == 0) {
printf("EEPROM model not found\n");
return 1;
}
// set EEPROM organization
int eeprom_org = EEPROM_MODE_8BIT;
int bits = 8;
#ifdef BYTE
eeprom_org = EEPROM_MODE_8BIT;
bits = 8;
#endif
#ifdef WORD
eeprom_org = EEPROM_MODE_16BIT;
bits = 16;
#endif
// start wiringPi
if (wiringPiSetup() == -1) {
printf("wiringPiSetup Error\n");
return 1;
}
// open device
struct eeprom dev;
int eeprom_bytes = eeprom_open(eeprom_model, eeprom_org, pCS, pSK, pDI, pDO, &dev);
if (eeprom_org == EEPROM_MODE_8BIT) {
printf("EEPROM chip=93C%02d, %dBit Organization, Total=%dBytes\n",eeprom_model, bits, eeprom_bytes);
} else {
printf("EEPROM chip=93C%02d, %dBit Organization, Total=%dWords\n",eeprom_model, bits, eeprom_bytes);
}
if (eeprom_org == EEPROM_MODE_8BIT) org8Mode(&dev, eeprom_bytes);
if (eeprom_org == EEPROM_MODE_16BIT) org16Mode(&dev, eeprom_bytes);
}