Good catch, 3,
Yeah, having J16 shorted there would definitely ruin your measurements. We’re measuring current into the microcontroller via the voltage drop across a shunt resistor (across SHUNTH and SHUNTL), so shorting those two mostly removes your ability to calculate current.
As for why the LEDs are off, the STM32F4 HAL doesn’t actually configure the LED pins, so they’re still the default high impedance. If you want to use the LEDs, you should be able to include stm32f4xx_hal_gpio.h and use similar code to the trigger setup:
void trigger_setup(void)
{
GPIO_InitTypeDef GpioInit;
GpioInit.Pin = GPIO_PIN_12;
GpioInit.Mode = GPIO_MODE_OUTPUT_PP;
GpioInit.Pull = GPIO_NOPULL;
GpioInit.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOA, &GpioInit);
}
void trigger_high(void)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_12, SET);
}
void trigger_low(void)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_12, RESET);
}
(LEDs are active low here though)
Alex