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IE · 2023-12-12

Hello,We encountered a problem with the internal Bootloader of the STM32G0B1KBU6 MCU.ConditionsFirst, the option bytes are set with an STLINK-V3 programming adapter (SWD interface) and CubeProgrammer (2.15.0) according to Pattern 11 of AN2606:nBoot_S...

IE · 2024-02-06

We have finally found the root of the problem. Pin 23 (PA12[PA10]), which is responsible for the DFU bootloader, was not defined up until now.If this is set to GND via 10kOhm and a reset is carried out via the reset pin, the I2C clock can occasionall...

IE · 2024-01-17

Hello,the problem still occurs. MCUs were programmable on PCB board via I2C and stm32flashtool before assembling. After the protective coating of the circuit board and the assembly of the product, we receive I2C write error messages on the bus as so...

IE · 2023-12-19

For debugging I use I2C-tools of a Raspberry Pi 3. It is wired to the I2C-line of the PCB, which makes the signal not that gorgeous.

IE · 2023-12-19

The clock stretching begins even with no-stretch commands. The erase fail.png attached is captured after sending the first two bytes. I use i2ctransfer command to send these two bytes to address 0x5d as follows:i2ctransfer 1 w2@0x5d 0x45 0xBAAs I sa...

IE · 2023-12-18

It is definitely an error case caused by the microcontroller. As soon as SCL is broken by reading/writing at address 0x5d and the master is removed, it does not recover. The Clock only recovers after a power cycle. Even if a read command (i2cget) is ...

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Flash via I2C bootloader problem for STM32G0B1KBU6

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Re: Flash via I2C bootloader problem for STM32G0B1KBU6

Re: Flash via I2C bootloader problem for STM32G0B1KBU6

Re: Flash via I2C bootloader problem for STM32G0B1KBU6

Re: Flash via I2C bootloader problem for STM32G0B1KBU6