About anotherandrew

anotherandrew · 2023-10-22

I have an STM32H735G-DK and a sample CAN application that is working fine. I am now trying to use the CANFD ROM bootloader in system memory but cannot get any response from it. All the jumpers and solder bridges on the DK are at their default config...

anotherandrew · 2023-08-21

I'm using X-CUBE-CRYPTOLIB v4.1.0 on an STM32H735. I'm using the libSTM32Cryptographic_CM7.a static library supplied by the crypto library.I'm running into an interesting issue where the address that the binary library is using for the CRC peripheral...

anotherandrew · 2023-05-08

Using an STM32H735G-DK (MB1520-H735I-C02), I was using the HDP_Boot/HDP_Appli examples and I think I fat-fingered the SEC_AREA_START and SEC_AREA_END addresses, setting both to the same value which effectively secures all of internal flash. Neither t...

anotherandrew · 2022-07-13

I'm a little frustrated that there isn't a "Here's ST's Time of Flight sensor offering and which sensors have which features" kind of page. The sensor datasheets themselves also do not give any real comparison data to other (pin compatible) parts.Fro...

anotherandrew · 2022-07-07

I can see from the datasheets (VL53L4CD for example) that the emitter and sensor volume is represented as two cones that start at the sensor face and grow bigger as the distance from the sensor increases.If I am measuring the distance to a target tha...

anotherandrew · 2024-02-06

Replying to myself here.from my other post here , the steps I took to get responses from the bootloader:# configure the CANFD driver on Linux:sudo ip link set can0 up type can bitrate 250000 sample-point 0.75 sjw 16 dbitrate 1000000 dsample-point 0.7...

anotherandrew · 2024-02-06

I accidentally accepted your answer, but in hindsight that is fine.I think your error is that you are sending a CAN FD frame with BRS (Bit Rate Switch) cleared. If you use cansend can0 000##1I think you will have more success. Please see my other com...

anotherandrew · 2024-02-06

I have finally achieved success.# configure the CANFD driver on Linux:sudo ip link set can0 up type can bitrate 250000 sample-point 0.75 sjw 16 dbitrate 1000000 dsample-point 0.75 dsjw 4 fd on# monitor the CAN bus (in a different window/tab):candump ...

anotherandrew · 2023-10-28

Thank you for the quick reply!So 250k/1M, BSR and you're not sending anything as a "wakeup" (like the ID 0x079 used in the "classic" CAN bootloader app note AN3154)? Just boot to ROM bootloader and send 0x002 with DLC=0 and you get three CAN frames ...

anotherandrew · 2023-10-27

Please tell me how you are getting responses from the ROM bootloader on FDCAN1?! I have tried everything in AN5405 with no response. What is your CAN configuration (bit rate, data bit rate, etc.), what message are you sending to "wake up" the bootloa...

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STM32H735G-DK, cannot get response from CANFD ROM bootloader

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fat-fingered SEC_AREA_START/END, JTAG gone, can I recover?

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