step 1: initialize clockstep 2: set pins to outputstep 3: set corresponding 'set' bits to 1 in BSRR registerint main(){    //enable clock for necessary ports//clock for leds: port port B, pins 0, 1, 5RCC->AHB2ENR |= RCC_AHB2ENR_GPIOBEN;//RCC->AHB2ENR...