OpenOCD Stlink set read protection over STM32F103

Development Platforms
1

Hello,
I m searching how to set the read data protection on a stm32f103. I m using a stlink over SWD. Seems firmware is uploaded via OpenOCD.
I found how to set te RDP byte with these OpenOCD commands :

# Set RDP to level 1
init
reset halt
stm32f1x lock 0
reset halt
exit

But I don’t really kown how to modify configuration from platformio to pass this parameter to openOCD.
Could you drive me ? Thanks in advance.

regards,

Aurélien

2

So here is the solution if someone search it :
You have to use custom upload script as follow :

in your platformio.ini put :

extra_scripts = extra_script.py
upload_protocol = custom

Create file extra_script.py near platformio.ini which contains :

Import("env", "projenv")
platform = env.PioPlatform()
env.Prepend(
    UPLOADERFLAGS=["-s", platform.get_package_dir("tool-openocd")+"/scripts"]
)
env.Append(
    UPLOADERFLAGS=["-f", "interface/stlink.cfg"]
)
env.Append(
    UPLOADERFLAGS=["-c", "transport select hla_swd"]
)
env.Append(
    UPLOADERFLAGS=["-f", "target/stm32f1x.cfg"]
)
env.Append(
    UPLOADERFLAGS=["-c", "program {$SOURCE} verify reset;reset halt;stm32f1x lock 0;reset halt; shutdown"] 
)

env.Replace(
    UPLOADER="openocd",
    UPLOADCMD="$UPLOADER $UPLOADERFLAGS"
)
3

Sorry, i’m not an expert programmer and i’m new to stm platform… if i use this script firmware is loaded correctly (it seems) but it not start at all. I’m sure i’m missing something… Which are all the steps needed to have it working?

4

Ok solved! A complete off/on (POR) cycle was requested after programming with read protection. A normal reset with button is not enough.
I adjusted py files: there was wrong quotation marks, and added start memory address 0x08000000 to prevent “No flash bank found for address 0x00000000”

Import("env", "projenv")

platform = env.PioPlatform()

env.Prepend(

UPLOADERFLAGS=["-s", platform.get_package_dir("tool-openocd")+"/scripts"]

)

env.Append(

UPLOADERFLAGS=["-f", "interface/stlink.cfg"]

)

env.Append(

UPLOADERFLAGS=["-c", "transport select hla_swd"]

)

env.Append(

UPLOADERFLAGS=["-f", "target/stm32f1x.cfg"]

)

env.Append(

UPLOADERFLAGS=["-c", "program {$SOURCE} 0x08000000 verify reset;reset halt;stm32f1x lock 0;reset halt; shutdown"] 

)

env.Replace(

UPLOADER="openocd",

UPLOADCMD="$UPLOADER $UPLOADERFLAGS"

)