STM32 MCUs Products

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Resolved! STM32H743 CANBus TX Timing

Hi all, I have what's probably a niche problem but a problem (seemingly) nonetheless. I'm making a CANBus application that I'd like to use DAR (Disable Auto-Retransmit) mode for. I'm running into an issue where, after a certain amount of time while t...

joh06937 by Associate II
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  • 3 replies
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Resolved! Combine USART and USB for bootloader selection?

I had a passing thought. I have two pins that I can connect to a PC in my enclosure. I'd like to use USB OR USART. I'd like the PC to select.My idea was to tie the pins together and let the bootloader's selection process pick the correct one on the c...

MBC_0-1696549765205.png
MBC by Associate III
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  • 2 replies
  • 1 kudos

Interrupt fires multiple times on EXTI9-5

hi, I'm working on a STM32F303CC. on this mcu I'm using 6 buttons as interrupts. 5 of these buttons are connected to EXTI15-10 and one to EXTI9-5. the buttons on EXTI15-10 are working perfectly fine. although, the button on EXTI9-5 fires an incredibl...

ROtte by Associate
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  • 3 replies
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PWM Generation CH1 CH1N doesnt work?

Hi, I have STM32F091RCTx and want to send PWM generated signals on 2 PIN's.//... HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNEL_1, (uint32_t*)LedData, LED_DATA_LENGTH); //...   void HAL_TIM_PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim) { if (htim ==...

JBond.1 by Senior
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  • 2 replies
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Resolved! All EXTIs triggered at same time

I configured the EXTIs for 16 inputs from PD0 to PD15, rising and falling edge, IRQ1 for PD0, IRQ2 por PD1, and so on as must be for groups 5-9 and 10-15 IRQ Handler. I debug the program with a breakpoint in each EXTI_IRQ_HANDLER and all of them are ...