STM32F103VFT6 99CBK 93 A MYS 99 322

[FLast.14]

Hi 

Since almost 10 years I'm working with STM32F103VF microcontroller with KEIL IDE, and I don't have any problem. But yesterday I received the last batch from my PCB manufacturer, and it installs that reference STM32F103VFT6 as always, but I can't debug with KEIL. And I don't understand why. 

I erased all sectors, and with ST-link Utility I can program my device successfully, but I can't debug with KEIL. 

Is anything to take into account to debug it? 

If I check the completely name writted in the microcontroller I can see: STM32F103VFT6 99CBK 93 A MYS 99 322

Is this batch the problem?

Regards, 

[STOne-32]

Dear @FLast.14 ,

Can you provide a picture of top marking ? Also using ST-link utility to have the UniqueID in that device .

how many parts are impacted ? And finally what means You can not debug ? If possible to provide more details with MDK Keil ?  Most probably it is not a genuine ST product and please check with you PCB manufacturer on their sources .

Cheers,

STOne-32

[FLast.14]

Dear @STOne-32 

The picture of uC is:

I do the follow steps:

1) Open the keil and compile. Press "Start Debug Session"

2) The following messages appear:

3) then I open St-link Utillity, and connect the target. The go to Target menu > Option bytes, I DON'T change anything, only "apply" the current options:

4) Then go to Keil again, and press "Start Debug" and it

5) But the cursor do not is in "main" function. 

6) If I burn this part of the project with the St-link utility, there is no problem and the code progresses and the device works fine. So, I can't debug. 

My project has three parts: Bootloader, a Module, and application part.  From bootloader the code jumps to application part, and it when is working the device does some queries to Module part and it answers. 

About Keil + St-link:

What do you think can be happening?

Thanks

[FLast.14]

When I do the same with old board:

There is no problem, I can debug:

[STOne-32]

Hi @FLast.14 ,

The marking of the device shows it is not an ST genuine Part as we never split the STM32F103VFT and then 6 on new line .

as shown in the working MCU .

please contact your manufacturer/supplier 

Ciao ,

STOne-32

[FLast.14]

Thank you, I will contact with my manufacturer.... 

[FLast.14]

Hi

I've contacted with my components supplier, this is an official distributor from ST in Spain, and they say:

@STOne-32 do you have any other answer?

Regards, 

[Tesla DeLorean]

What version of the Keil tools and ST DLLs are you using here?

They might need update.

[STOne-32]

Hi @FLast.14 ,

Yes, now the right path is to Open an official Ticket on our Online support, you will be in touch first with our regional team : Technical and Quality for follow-up of this unusual strange case indeed .

Cheers,

STOne-32.

[Tesla DeLorean]

Not addressing your specific issue, but here are Keil's most recent versions

https://developer.arm.com/documentation/ka005381/latest/

Notionally living in C:\Keil\ARM\STLink depending on your install.

You could also install a current version of the MDK and move files, but just be aware the MDK 5.3x doesn't ship with the version 5 compiler, but only version 6, and that might take some rework of code/projects if they are old.

The newer / alternate mask sets should be very similar, but would check the errata, and whatever @STOne-32 can offer in regards to deltas and differences, and differences in System Loader placed in the devices.