About Zephyr S

Zephyr S · 2020-09-21

Hello,I am using a STM32L432KC to control the UART bootloader of a STM32F446RE.First, I am sending Get and Get ID command to check if I get the recquired answer. It works, but not as I wish.To begin I Initialize the bootloader sending 0x7F and that w...

Zephyr S · 2020-06-16

Hello,I am trying to communicate with the UART bootloader (NUCLEO64 F446E) using a second board (NUCLEO32 L432KC).I am using USART1 (PA_9, PA_10), on which I am trying to send the 0x7F frame to activate UART bootloader (after having activated bootloa...

Zephyr S · 2020-06-11

My problem is that when I want to debug my firmware, i get a message saying " 'Launching <MyProgram> Debug' has encountered a problem. Failed to execute MI command : <C://____/MyProgram.binary: No such file or directory."That is true I have not a .bi...

Zephyr S · 2019-07-19

Hi all, I use 2 STM32F446RE boards. They communicate with a CAN bus.I get a little code that allows my boards to enter boot mode when it receives a frame with a specific ID.When one enters in boot mode, using a third board, I send a frame with ID 0x7...

Zephyr S · 2019-04-17

I get few questionning:The STLINK does not detect any target voltage on the T_CAN_VCC pin, whereas I put 3.3V from my STM32 on it. What can I do ?The documentation says to put BOOT0 high and BOOT1 low. that's what I did. But connection's still imposs...

Zephyr S · 2020-09-23

I don't think so because as I told you, I have to send twice the init command (0x7F) too which is built by only one byte.The system can't take one byte from the first request and one from the second as it's the same byte in both and the system only n...

Zephyr S · 2020-09-21

That's what I should send concerning Get command.Then I don't understand why neither,but if I send 0x00+0xFF it doesn't work, I have to send 0xFF+0x00... Exactly the same thing for the GetID command, I have to send 0xFD+0x02 (not 0x02+0xFD).As it wo...

Zephyr S · 2020-06-11

I get a .bin, but when I used Atollic TrueStudio instead of CubeIDE (on another computer I have not anymore) I got a .binary.The fact is that CubeIDE want me to get a .binary...I tried to change some parameters. It is on a .elf by default in my "debu...

Zephyr S · 2019-03-27

Hey,I'm using the NUCLEO64 F446RE and I disabled the MCO signal by desoldering SBs and cut both part of the board. I only want to keep the STM32F4 part. Then I soldered a 8MHz osc on X3 (and added the corresponding capacitors and resistors), but it d...

Zephyr S · 2019-01-28

Hello Clive,First, thanks for your answer.My goal is to save time. Why couldn't I use fonctions that are implemented by ST ? like the bootloader and their soft ? They're here for that.Then, I don't understand. If I use the CAN mode with a ST-LINK V3,...

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Why do I have to send a UART bootloader command twice to get an answer ?

Is there a specific manipulation to do to communicate with UART bootloader using a second microcontroller as host ?

Hello, I get a problem debugging my program and I don't know how I can resolve it as my parameters seems good. I am using a NUCLEO32-L432KC with STM32CubeIDE.

I can't program my STM32 through bootloader on a CAN Network, even though it works with a single target connected on the bus.

Hello, I try to upload my STM32 F446RE using bootloader through CAN. I get the STLINK V3SET and the utility STM32CuebeProgrammer. But the connection with the target is impossible.

Re: Why do I have to send a UART bootloader command twice to get an answer ?

Re: Why do I have to send a UART bootloader command twice to get an answer ?

Re: Hello, I get a problem debugging my program and I don't know how I can resolve it as my parameters seems good. I am using a NUCLEO32-L432KC with STM32CubeIDE.

Re: STM32F4 HSE clock frequency without HSE

Re: Hello, I would like to update my board firmware using bootloader CAN. Could the STLINK-V3 allow me to flash my board using bootloader CAN ? otherwise, which kind of board should I use as a host PC ?