Posts Tagged ‘microchip abierto atmega1280 microcontrolador bloqueado heximal’
Microchip ATmega1280 Locked Microcontroller Heximal Restoration
Microchip ATmega1280 Locked Microcontroller Heximal Restoration needs to unlock mcu atmega1280 flash memory and then read out firmware program from atmega1280 flash and eeprom memory;
Port H is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port H output buf- fers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port H pins that are externally pulled low will source current if the pull-up resistors are activated. The Port H pins are tri-stated when a reset condition becomes active, even if the clock is not running.
Port J is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port J output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port J pins that are externally pulled low will source current if the pull-up resistors are activated. The Port J pins are tri-stated when a reset condition becomes active, even if the clock is not running.
Port K is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port K output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port K pins that are externally pulled low will source current if the pull-up resistors are activated. The Port K pins are tri-stated when a reset condition becomes active, even if the clock is not running.