Parallel and serial High Voltage AVR Programmer
Most AVR fans probably use a simple AVR ISP programmer that can be built from a few electronic parts or even without them. But the fact is that simple ISP programmer has some limitations, like disabling Reset or SPI fuses. A High Voltage AVR Programmer is used for programming and configuring AVR microcontrollers that have been locked or otherwise rendered unresponsive due to incorrect fuse settings or code errors. When AVR microcontrollers are programmed, specific fuse settings need to be configured to ensure proper operation. If these settings are incorrect, the microcontroller can become unresponsive, preventing further programming or reconfiguration using standard programming methods. In this situation, a High Voltage AVR Programmer can be used to reset the fuse settings and reprogram the microcontroller, restoring its functionality. This is done by applying a high-voltage signal to the reset pin of the microcontroller, which allows the programmer to enter programming mode and reprogram the fuse settings and code. High Voltage AVR Programmers are typically used in situations where the microcontroller is not easily accessible or removable from the device it is…
