Posted on March 28, 2018 at 01:05
Any ideas why this board consumes 3.3 mA in StandByMode even if there's nothing plugged in? I already desoldered the AMS1117 and the on board leds.
Same goes for the STM32F103C8T6 I have. Both using around 3-4mA even is they supposedly are in standbymode. Im pretty sure the MCU enters standbymode since I tested it with a blinking led. Once the MCU entered standby the blinking stopped. When running the code the current draw is around 6mA.
Here's the code im using to put it to standbymode:
__HAL_RCC_USART1_CLK_DISABLE();
__HAL_RCC_GPIOF_CLK_DISABLE(); __HAL_RCC_GPIOA_CLK_DISABLE
(); __HAL_RCC_GPIOB_CLK_DISABLE
(); HAL_PWR_EnableWakeUpPin(KeskB_Pin); HAL_PWR_EnterSTANDBYMode();Here's the GPIO init:
I configured all the unused pins as inputs and pulled them low.
void MX_GPIO_Init(void)
{GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE();/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0|GPIO_PIN_1|LED_Pin|GPIO_PIN_5|GPIO_PIN_9|GPIO_PIN_10,GPIO_PIN_SET);/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_RESET);/*Configure GPIO pins : PA0 PA1 PAPin PA5
PA9 PA10 */ GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|LED_Pin|GPIO_PIN_5 |GPIO_PIN_9|GPIO_PIN_10; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_PULLDOWN; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);/*Configure GPIO pin : PtPin */
GPIO_InitStruct.Pin = KeskB_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(KeskB_GPIO_Port, &GPIO_InitStruct);/*Configure GPIO pin : PtPin */
GPIO_InitStruct.Pin = Read_Pin; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(Read_GPIO_Port, &GPIO_InitStruct);/*Configure GPIO pin : PB1 */
GPIO_InitStruct.Pin = GPIO_PIN_1; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_PULLDOWN; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI4_15_IRQn, 0, 0); HAL_NVIC_EnableIRQ(EXTI4_15_IRQn);}
