Hello, I am using an STM32F303CC MCU and I am able to successfully upgrade the Internal Flash, but any time I try applying the update to the Option Bytes I get the following error: "Target 01: Unable to find data for that device/target from the file..."
Target 01 is the Option Bytes, according to Dfuse Demo.
Things I have tried
Apply a firmware file without Option Bytes - WORKS
Apply a firmware file to Option Bytes, and not Internal Flash - ERROR (Target 01: ...)
Select/Deselect "Verify after download" - ERROR
Select/Deselect "Optimize Upgrade duration" - ERROR
All of the above with .dfu .bin and . hex - SAME RESULTS
Tools I have tried
DfuSe Demo
CUBE Programmer
dfu-util
(and about a dozen forks of these found around GitHub)
I went into the assembly file we are using to generate the .dfu and found the part relevant to the Option Bytes Read Protection and am pasting it. I did not make this, i was generated by someone else from some of your tools. I believe the issue to be in this section of the code, but I do not know assembly.
;// <e> Flash Option Bytes
FLASH_OPT EQU 1
; // <h> Flash Read Protection
; // <i> Read protection is used to protect the software code stored in Flash memory
; // <o0> Read Protection Level
; // <i> Level 0: No Protection
; // <i> Level 1: Read Protection of Memories (debug features limited)
; // <i> Level 2: Chip Protection (debug and boot in RAM features disabled)
; // <0xAA=> Level 0 (No Protection)
; // <0xA5=> Level 1 (Read Protection of Memories)
; // <0xCC=> Level 2 (Chip Protection. It's no more possible to go back to level 1 or 0!)
; // </h>
RDP EQU 0xA5
nRDP EQU RDP:EOR:0xFF
Any sort of help you could provide would be greatly appreciated. Please let me know if there is any other information you need to assist me. 🙂
