PA3040
Advanced Member level 3
Dear All,
I am planning to design a project board which includes RTC EEPROM Temperature sensor LCD and keypad. RTC and EEPROM are communicating using I2C and LCD connected to PORTD (8bit mode) and keypad also connected to PORTD so my question is if we connect keypad to PORTD and then we press a key how we give priority to keypad to display desired characters
I can not connect keypad to PORTB because RB6 and RB7 use for debugging MY MCU is PIC16f877a
Please advice
I am planning to design a project board which includes RTC EEPROM Temperature sensor LCD and keypad. RTC and EEPROM are communicating using I2C and LCD connected to PORTD (8bit mode) and keypad also connected to PORTD so my question is if we connect keypad to PORTD and then we press a key how we give priority to keypad to display desired characters
I can not connect keypad to PORTB because RB6 and RB7 use for debugging MY MCU is PIC16f877a
Please advice