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Forum Posts

Troubleshooting reset causes using RCC->CSR register

I am trying to determine the cause of resets happening in my application. It does not seem like the RCC->CSR register is working properly.I tested this out by manually grounding the NRST pin and setting a break point in my code before main(). The CSR...

Can somebody help me here. Interrupt handler routine is not getting Exit. Context Switch Not working back to the main task.

Hello, Technical Details: CMSIS- RTX based RTOS.STM32H7xx based MCU.Problem Description:I am trying to find the duty cycle of a incoming PWM. And my problem occurs when there is an interrupt and now the interrupt handler executes properly but It does...

Vmere.1 by Senior
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  • 6 replies
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Resolved! HAL_SAI_Transmit() does not stop the I2S clocks when complete

Hello,Some background:STM32CubeIDE 1.6.1MCU: STM32L4R9ZGJ6SDK: STM32Cube_FW_L4_V1.14.0 (Yes I know it's old ~ 2019) Project is too large to update at the moment.I am currently debugging external DAC audio issues. I reverted to using simple SAI blocki...

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DerekR by Senior
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  • 5 replies
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Hi, i use the stm32f405rgt6 and like to jump to the system memory 0x1fff0000. It never stays at DFU stm32_bootloader, it always starts application again.

I tryed two methodes, one just jumping to that address 0x1fff0000 via function pointer and second writing some magic numbers at 0x2001fffc and placing some asm code in the startup *.s file to jump branch to the system bootloader. I had to change cont...

MOtto.1 by Associate II
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  • 8 replies
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Resolved! STM32L052 - RTC with implausible or Zero - Content after RESET due to leaving the standby mode by recognizing of level LOW on RTC-TAMP1 (PC13)

The tamper contact RTC.TAMP1 on PC13 is used for entering and leaving the standby modus in tamper - level - detection - mode. The detection of low level on RTC-TAMP1 finishes the standby mode and restarts the controller. That is all OK. but in about ...

FEber.1 by Associate III
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  • 8 replies
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How to stop receive data in this code? or How to stop a get char? I used Interrupt to scan WiFi Information. I need only SSID. To input a buffer (Ring or FIFO) but it keeps bringing inform.

  void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { if(huart->Instance == USART2) { RX_Data[Rx_Index] = RXD; Rx_Index++; HAL_UART_Receive_IT(&UART2_WIFI,&RXD,1);   }   }

wwgww by Associate II
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  • 1 replies
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STM32L073 RTC/LCD clock frequency

The RTC/LCD clock can be derived from HSE (prescaled). In this case, the prescaler must be chosen appropriately so as to get an RTC/LCD frequency within the admissible range.Using CubeMX, when the limits are exceeded, the tooltip says:* (tooltip over...

SZano by Associate III
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