rx_buffer_size - size of the slave receive buffer rx_buffer - pointer to the slave receive buffer
match_any_addr - if true, the slave match address logic responds to all received addresses Unsigned char *rx_data, unsigned char rx_count) Unsigned char *tx_data, unsigned char tx_count, rx_count - number of bytes that must be received from the slave during the transaction rx_data - pointer to the buffer that holds the data received from the slave tx_count - number of bytes that must be transmitted to the slave during the transaction tx_data - pointer to the buffer that holds the data to be transmitted to the slave slave_addr - 7 bit address of the TWI slave with which the transaction must be performed function used for performing a TWI master transaction Void twi_master_init(unsigned int bit_rate) Function: Bit7=Out Bit6=Out Bit5=Out Bit4=Out Bit3=Out Bit2=Out Bit1=Out Bit0=OutĮxtern unsigned char twi_tx_index // data index in the transmit bufferĮxtern unsigned char twi_rx_index // data index in the receive bufferĮxtern unsigned char twi_result // holds the result of the last TWI transaction #define EEPROM_TWI_BUS_ADDRESS (0xA0 > 1) * 7 bit TWI bus slave address of the AT24C02B 2kbyte EEPROM */ Here is the code, i got it from cvAVR help: #include So I know the data successfully stored in eeprom.
I'm trying to write and read to external eeprom (AT24c02B) then show the data bytes that store in eeprom to LED in PORTB and or to LCD.
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