ICS-Microprocessor-2020/Modbus_1_Deva4ki
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device address added

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This commit is contained in:
Лада Южакова 2023-03-28 14:44:10 +03:00
parent b140ceff68
commit baa98357c1
2 changed files with 50 additions and 0 deletions
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41
device_address.c Normal file
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#include "device_address.h"
#define DEFAULT_MODBUS_ADDRESS (32)
uint8_t EEPROM_ReadByte(uint8_t __eeprom*adr)
{
while (EECR & (1<<EEWE));
EEAR = (uint16_t)adr;
EECR |= (1<<EERE);
return EEDR;
}
void EEPROM_WriteByte(uint8_t __eeprom*adr, uint8_t value)
{
while (EECR & (1<<EEWE));
EEAR = (uint16_t)adr;
EEDR = value;
EECR |= (1<<EEMWE);
EECR |= (1<<EEWE);
}
uint8_t get_device_address(void)
{
return EEPROM_ReadByte(0);
}
void write_device_address(uint8_t address)
{
EEPROM_WriteByte(0, address);
EEPROM_WriteByte(1, ~address);
}
uint8_t get_default_address(void)
{
return DEFAULT_MODBUS_ADDRESS;
}
int is_valid_device_address(void)
{
return (EEPROM_ReadByte(0) ^ EEPROM_ReadByte(1) == 0xFF);
}

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device_address.h Normal file
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#ifndef DEVICE_ADDRESS_H
#define DEVICE_ADDRESS_H
uint8_t get_device_address(void);
void write_device_address(uint8_t address);
uint8_t get_default_address(void);
int is_valid_device_address(void);
#endif /*DEVICE_ADDRESS_H*/