About JAlca

JAlca · 2023-11-11

Hi all!,I have 2 STM32F103C8T6 connected by CAN bus.Each STM32F103C8T6 has the same firmware.This firmware starts sending a message "RequestID" by the CAN bus.Is there a way to avoid send the "RequestID" in case another "RequestID" were detected on t...

JAlca · 2023-04-16

Hi all,Here is a CubeIde project for an external loader working over SPI interface (not QSPI).It runs over a BlackPill board with a W25Q32 flash (the BlackPill has a place reserved to solder the flash ic).https://github.com/JLuisAlcaraz/STM32F411CE_B...

JAlca · 2023-04-10

JAlca · 2021-03-16

Hi all,I'm learning about low power modes , and I'm testing the RTC wakeup timer function.Datasheet talks about to set the IRQs for WakeUp timer on EXTI(IRQ 19) and NVIC(IRQ 3), but I tested in my code, with and without set these IRQs and the wakeup ...

JAlca · 2021-03-11

Hi all,It is possible to wake up a STM32F3 series MCU, in stand by mode, from a tamper pin?

JAlca · 2023-05-26

I'm working with a custom board with STM32H7A.The custom external loader works properly from CLI, but cubeProgrammer fails to erase/flash/read external memory.But if...-Open CubeProgrammer.-Click "Connect"-After connected, go to "EL" and select your ...

JAlca · 2021-03-11

I did it, and its work well. But the wakeup pin is only rising edge active, and I need a falling edge (yes, I can use a NOT gate, but if is there a way to use tamper...)

JAlca · 2021-03-11

Yes, but in the same chapter, it says:--------------------------------------------------------------------Standby mode DescriptionMode entryWFI (Wait for Interrupt) or WFE (Wait for Event) while:– Set SLEEPDEEP in ARM® Cortex®-M4 System Control regis...

JAlca · 2021-03-10

Thank you very much for your explanation.Do you have an example of wakeup a MCU, from standby mode, using a tamper pin?

JAlca · 2021-01-20

Excellent!Thanks for the solution. I've been trying to solve the problem for 2 days.

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CAN question with STM32F103C8T6.

A CubeIDE project about SPI external loader for STM32F411CE and W25Q32.

Hi all, I'm triyng to learn about TouchGFX and custom board. In the case you use a MCU without QSPI, like the stm32f411, is it possible to set memory mapped mode?

WAKEUP from STANDBY mode and EXTI/NVIC IRQs

Wake up from stand by from a tamper pin.

Re: External loader fails to download

Re: Wake up from stand by from a tamper pin.

Re: Wake up from stand by from a tamper pin.

Re: About Tamper Protection.

Re: Hello, i try to use the SPI interface on STM32f3 DISCOVERYBOARD. My problem is that my clock toggles, even though the data transfer is complete. The busy flag is not yet reset either. What can that be? Ther is an Osziplot wich shows the Problem