About SKana.5

SKana.5 · 2023-02-02

I'm using STM32F405RGT6 as a Main controller on the board for our product.When we flash the FW to STM32F405RGT6 via FT232RL, it fails to enter bootloader mode sometimes. Failling rate is around 40-50%. I observed signal behaviour about Reset(DTR) and...

SKana.5 · 2023-02-23

I probably found the cause of this.I'm using PB5/6 for CAN interface and Battery(Toshiba:FP01101MCB01A) is connected to it.Actually, when failing to enter bootloader via USART, STM32 detected some frame on CAN and went to CAN bootloader process. (ref...

SKana.5 · 2023-02-20

I tested flashing 20 times with several pattern. Chaning the Baudrate looks not working.. It still fails sometimes.No.1 (fail rate 25%)Baudrate is 230400 bpsR103:mounted, D110:unmountedNo.2 (fail rate 25%)Baudrate is 115200 bpsR103:mounted, D110:unmo...

SKana.5 · 2023-02-05

Hi Peter,Sorry for making you confused. D110 is not mounted. R103 (0ohm resistor) is mounted. Okay, I will try 115200 baudrate.BTW, I have a question. Now I am using 16MHz external clock for SMT32F4. If I use 8MHz external clock instead of 16MHz, are...

SKana.5 · 2023-02-03

I disabled internal WDT and tried entering bootloader but still it fails with same rate.I captured the datalink packet and found that FT232RL sends 0x7F and STM32 reply 0x79 in success case but FT232RL sends 0x7F and STM32 doesn"t reply anything in f...

SKana.5 · 2023-02-02

Hi JW, Thank you for your comment. Yes, we are using internal WDT in our firmware. We will try to enter bootloader and flashing firmware with disabling WDT.However, first of all, the problem is STM32 can not enter bootloader mode sometimes and tbh I'...

User statistics

User Activity

STM32F405RGT6 fails to enter bootloader sometimes

Re: STM32F405RGT6 fails to enter bootloader sometimes

Re: STM32F405RGT6 fails to enter bootloader sometimes

Re: STM32F405RGT6 fails to enter bootloader sometimes

Re: STM32F405RGT6 fails to enter bootloader sometimes

Re: STM32F405RGT6 fails to enter bootloader sometimes