Development board: L072CZ-LRWAN board
Development Environment: KEIL (Free License)
Hello
We are currently developing LoRaWAN's end device.
Before connecting JP9 1-2 to control TCXO,
I tried to check if the output is coming from PA12, but only the voltage of mV is detected.
I gave all the settings of GPIO to HIGH, but I checked that all except PA12, PA11 PB13.
I'd appreciate it if you could tell me what I did wrong!
Below is the code.
void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, LED_G_Pin|LED_B_Pin|LED_R2_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, TCXO_VCC_Pin|LED_R1_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : PBPin PBPin PBPin */
GPIO_InitStruct.Pin = LED_G_Pin|LED_B_Pin|LED_R2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
//**//
GPIO_InitStruct.Pin = GPIO_PIN_All;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pins : PAPin PAPin */
GPIO_InitStruct.Pin = TCXO_VCC_Pin|LED_R1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : PtPin */
GPIO_InitStruct.Pin = push_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(push_GPIO_Port, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI0_1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(EXTI0_1_IRQn);
}
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_RTC_Init();
MX_USART2_UART_Init();
/* USER CODE BEGIN 2 */
HAL_GPIO_WritePin(TCXO_VCC_GPIO_Port,GPIO_PIN_All,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_All,GPIO_PIN_SET);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
/* USER CODE END 3 */
}
PS: I disconnected STLINK by removing SB37 to get the minimum current flowing on the development board.
In addition, SB6, SB14, SB17, SB18, SB19.
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