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#include "common.h"
#include "protocol.h"
#include <inttypes.h>
#include <stdbool.h>
#include <avr/io.h>
#include <avr/eeprom.h>
#include <stdio.h>
#include "eeprom.h"
#include "debug.h"
#define EEPROM_READY() while(EECR & (1 << EEWE));
void eeprom_parser(char *buf)
{
uint16_t addr;
uint16_t length;
addr = ((uint16_t)buf[2]) +
((uint16_t)buf[3] << 8);
length = ((uint16_t)buf[4]) +
((uint16_t)buf[5] << 8);
debugf("eeprom_parser: length: %u, addr: %u\n", length, addr);
switch(buf[0])
{
case CMD_EEPROM_READ_BYTES:
eeprom_read_bytes_usb(addr, length);
break;
case CMD_EEPROM_WRITE_BYTES:
eeprom_write_bytes_usb(addr, &buf[6], length);
break;
default:
answer[0] = buf[0];
answer[1] = RSP_UNKOWN_CMD;
answer[2] = 0;
CommandAnswer(3);
}
}
void eeprom_read_bytes_usb(uint16_t addr, uint16_t length)
{
answer[0] = CMD_EEPROM_READ_BYTES;
answer[1] = eeprom_read_bytes(addr, (char *)&answer[2], length);
answer[2+length] = 0;
debugf("read: %s\n", &answer[2]);
CommandAnswer(3+length);
}
uint8_t eeprom_read_bytes(uint16_t addr, char * buf, uint16_t length)
{
uint8_t i;
if(addr > MAX_ADDR)
return RSP_ERROR;
// wait for eeprom
EEPROM_READY();
for(i = 0; i < length; i++)
{
buf[i] = eeprom_read_byte((uint8_t*) addr++);
// set addr
//EEAR = addr++;
//EECR |= (1 << EERE);
//buf[i] = EEDR;
//debug_SendHex(buf[i]);
}
return RSP_OK;
}
void eeprom_write_bytes_usb(uint16_t addr, char * buf, uint16_t length)
{
answer[0] = CMD_EEPROM_WRITE_BYTES;
answer[1] = eeprom_write_bytes(addr, buf, length);
answer[2] = 0;
debugf("written: %s\n", buf);
CommandAnswer(3);
}
uint8_t eeprom_write_bytes(uint16_t addr, char * buf, uint16_t length)
{
uint8_t i;
if(addr > MAX_ADDR)
return RSP_ERROR;
// wait for eeprom
EEPROM_READY();
for(i = 0; i < length; i++)
{
eeprom_write_byte ((uint8_t*) addr++, buf[i]);
//EEAR = addr++;
//EEDR = buf[i];
//EECR |= (1 << EEMWE);
//EECR |= (1 << EEWE);
}
eeprom_read_bytes(addr, buf, length);
return RSP_OK;
}
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