Please write a C language file that will write a group of numbers into eeprom as a digital IC designer. I hope this C language file is general and detaile
时间: 2024-01-26 20:02:47 浏览: 42
Sure, here's an example C program that demonstrates how to write a group of numbers into the EEPROM memory using the I2C protocol. This code is written for the ATmega328P microcontroller, but it can be easily adapted for other microcontrollers.
```c
#include <avr/io.h>
#include <util/delay.h>
#include <avr/eeprom.h>
#include <avr/interrupt.h>
#define SLAVE_ADDR 0xA0 // Slave device address
void i2c_init(void) {
TWSR = 0x00; // Set prescaler to 1
TWBR = ((F_CPU / 100000UL) - 16) / 2; // Set bit rate generator
TWCR = (1 << TWEN); // Enable I2C module
}
void i2c_start(void) {
TWCR = (1 << TWINT) | (1 << TWSTA) | (1 << TWEN);
while (!(TWCR & (1 << TWINT)));
}
void i2c_stop(void) {
TWCR = (1 << TWINT) | (1 << TWSTO) | (1 << TWEN);
}
void i2c_write(uint8_t data) {
TWDR = data;
TWCR = (1 << TWINT) | (1 << TWEN);
while (!(TWCR & (1 << TWINT)));
}
void eeprom_write(uint16_t addr, uint8_t data) {
i2c_start();
i2c_write(SLAVE_ADDR | ((addr >> 8) & 0x07));
i2c_write(addr & 0xFF);
i2c_write(data);
i2c_stop();
_delay_ms(10);
}
int main(void) {
uint16_t addr = 0x0000; // Starting address in EEPROM
uint8_t data[] = {0x01, 0x02, 0x03, 0x04, 0x05}; // Data to be written
cli(); // Disable interrupts
i2c_init(); // Initialize I2C module
for (int i = 0; i < sizeof(data); i++) {
eeprom_write(addr++, data[i]); // Write data to EEPROM
}
sei(); // Enable interrupts
return 0;
}
```
In this code, the `i2c_init()` function initializes the I2C module, `i2c_start()` and `i2c_stop()` functions send start and stop signals respectively, `i2c_write()` function writes data to the I2C bus, and `eeprom_write()` function writes a byte of data to the EEPROM memory at a specified address.
You can modify this code to write any group of numbers to the EEPROM memory. Just update the `data` array with your desired numbers and adjust the `addr` variable to point to the starting address in EEPROM where you want to write the data.