SWO on startup
Hello,after POR, but before a "switch to SWD" sequence has been sent to the debug unit, what function is PB3? Is is only "Jtag dataout" are can it alreadt transfer SWO data.
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Unable to get bootloader access over CANBUS. No response from STM32 over CANBUS.
I am trying to flash code over CANBUS on Nucleo-F446. I am referring this application noteshttps://www.st.com/resource/en/application_note/cd00264321-can-protocol-used-in-the-stm32-bootloader-stmicroelectronics.pdfSo according to it in Boot mode the ...
Resolved! STM32G474RE TIM4 Rotary Encoder
Hi,Greetings!I have a Bourns Rotary encoder https://www.bourns.com/docs/product-datasheets/pec11r.pdfconnected to PA11(ENCA)/TIM4_CH1 and PA12(ENCB)/TIM4_CH2.Trying to use the encoder as a input control for user input.This is what I am doing: static...
How to read Data with UART circular DMA and byte-by-byte Data and use two Buffer ? with stm32f407 ? without FreeRTOS and realtime !!
Hello Friendsi'm new in STM32 i wanna know how to Read Data Byte-by-Byte from uart Rx Circular Dma and save this data in a buffer ? and my challenge is i do not know my input data length and type of that (hex, bin, ascii ,...)theres any sample code ?...
ADC freezes on power up
I have a project using an STM32L412. It works fine on my bench power supply, but I made it to run on a piece of modular equipment which has a different power supply - this supply is slower starting. On this supply the board seems to work fine except ...
Nucleo-F446RE - CAN Bus not initializing.
Hello!I have been trying to get the CAN system on this to work unsuccessfully for some time now, and in trying to debug the code have added some SWV ITM console printf's. In running the code, the HAL_CAN_Init, HAL_CAN_ConfigFilter, HAL_CAN_ActivateNo...
How to add support for STM32G serie to IAR for ARM V7.8 ?
Hello everybody!I am wondering how it would be possible to add support for the STM32G serie to the older version 7.8 of the EWARM IDE?Please advice.Regards,Konstantin
Resolved! CAN interrupt is not called
Hello,I am trying to set up a CAN interrupt base communication system and it seems that IRQ handler is never called.Debugger goes through the CAN1_TX and then back to main function, so IRq is never called.USART output:[2020-12-08_21:19:01:191] A...
Resolved! Issues with SPI comms between two STM32s
I'm trying out simple SPI comms between two STM32s. The TX is STM32F407 and the RX is STM32G070. The data that I seem to be receiving is different from what I'm sending. What am I missing here?For the RX, I've set the NSS to software. I've configured...
What's the lowest power way of using a Timer to divide by 2 ?
I need to divide a 24.576 MHz signal down to 12.288 MHz for a low power ADC so thought a timer would do this easily. But either I'm missing something or I have to put a value of 1 in the compare register and reload the counter all the time which see...
