Hi,

I am facing a problem with the MCU model STM32F105RB. I am using it with the J-link EDU.

I use a custom hardware, which works properly with the STM32F205RB model. Now I am trying to use the same custom hardware with the model STM32F105RB, adding the two resistors as stated in the datasheet (see next figure).

[img]https://dl.dropboxusercontent.com/u/60356745/resistors.PNG[/img]


The problem is that when communicating with the MCU via the J-Link Commander, I am getting this error:

[img]https://dl.dropboxusercontent.com/u/60356745/commander.PNG[/img]


I have also read in this forum that to unlock the MCU it is also necessary to use first the J-Link STM32 Unlock, but it trhows the following error.

[img]https://dl.dropboxusercontent.com/u/60356745/unlock.PNG[/img]


Thanks in advance