STM32 MCUs Embedded software

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Resolved! RTC timing is slower up to 10 seconds every minute.

Hello,I run with eval board RTC_timestamp example:en.stm32cubeh7\STM32Cube_FW_H7_V1.3.0\Projects\STM32H743I_EVAL\Examples\RTC\RTC_TimeStamp\EWARMSurprisingly, there is a shift delay of ~9 to 10 seconds (!) every 60 seconds.I tested it as following:us...

ranran by Senior II
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  • 6 replies
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Resolved! custom bootloader - jump to specific address

Hello guys,I am trying to implement a custom bootloader based on stm32f103rb.I would like to jump in a flash address page e.g 0x8004000When i am calling the app_reset_handler(), debugger break at address 0xfffffffe with no debug information.I appreci...

TPrio.1 by Associate II
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  • 4 replies
  • 0 kudos

Hi I tested arm_rfft_fast_f32 function from CMSIS-DSP 1.4.5. i want to calculate frequency. whenver i am use arm_cmplx_mag_f32((float32_t *) FFT_Input_Array_1, FFT_Output_Array, Samples); this function given not proper calculate fft Result.

Hi I tested arm_rfft_fast_f32 function from CMSIS-DSP 1.4.5 i used external 16 bit adc to given input of the stm32f4 devlopment board using SPI DMA interface. This row count data from adc given to the input buffer that are given belowMy Problem is th...

Svish.3 by Associate
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  • 0 replies
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Read I2C on interrupt with DMA

Hi, I am trying to read I2C on interrupt (HAL_GPIO_EXTI_Callback) using HAL_I2C_Mem_Read_DMA function. How ever I get into HardFault_Handler. I suspect its because HAL_I2C_Mem_Read_DMA function uses HAL_GetTick() which causes crash?Is there any way a...

JBond.1 by Senior
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  • 1 replies
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Barcode Scaner in USBHID

I'm trying to use the stack usb hid to talk with a barcode scanner. When I connect the scanner it is classified as a keyboard, but does not generate the interrupt events. Does anybody know why?thanks!

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