/*
* initialize the AVR device and prepare it to accept commands
*/
static int ft245r_initialize(PROGRAMMER * pgm, AVRPART * p) {
/* Apply power between VCC and GND while RESET and SCK are set to “0”. In some systems,
* the programmer can not guarantee that SCK is held low during power-up. In this
* case, RESET must be given a positive pulse of at least two CPU clock cycles duration
* after SCK has been set to “0”.
*/
set_sck(pgm, OFF);
ft245r_powerup(pgm);
set_reset(pgm, OFF);
usleep(5000); // 5ms
set_reset(pgm, ON);
usleep(5000); // 5ms
set_reset(pgm, OFF);
/* Wait for at least 20 ms and enable serial programming by sending the Programming
* Enable serial instruction to pin MOSI.
*/
usleep(20000); // 20ms
return ft245r_program_enable(pgm, p);
}
/*
* initialize the AVR device and prepare it to accept commands
*/
static int ft245r_initialize(PROGRAMMER * pgm, AVRPART * p)
{
return ft245r_program_enable(pgm, p);
}
