Need Help on UnSecure MCU

[Fred]

The board may have some parasitic capacitance. This could mean that you need less than the manufacturer recommends. Though, I found it worked fine with 15- 30pf on my random crystal. I don't think that they're THAT touchy, though yours might be.

Good move on USBDM

[Kennybug]

my finding today:

1st jaguar board :
- load caps changed to 18pF -- no effect
- changed crystal to another brand with same 18pF -- no effect
- Hiwave still able to read MCU memory but the connection is not stable
- not able unsecure MCU

2nd jaguar board :
- connection is better, 50% chance able to connect with ack sync speed.
- can unsecured MCU with a low speed 10.3xMhz with the original 22pf load cap
- loaded s19 SM to MCU but not yet tested.

3rd board still not completed soldering, will get it done and test again by weekend.

i believe my cheap TBDML is bad one.

now a new USBDM under shipping to my office

[Kennybug]

I read the TBDML documents again.
My cheap tbdml still using 1.0 firmware
may have the below limitation:

[Fred]

:-(

[Kennybug]

my China USBDM

can sync the MCU very fast and unsecure seamlessly

way better than old TBDML

[Fred]

Cost? Link? Seller? :-) Great news!

[Kennybug]

http://item.taobao.com/item.htm?id=12474117467

around 9 USD with shipping to my ShenZhen office.

sorry that google translate dont work on the damx taobao.com website.

[Spudmn]

Hi Kennybug

What is the part number of the micro that is used on the USBDM? I would like to know if I can update the software on it.

[Fred]

See Deuce's project for same thing diy style :-)

[Spudmn]

I was going to do that. But at that price and if it is the same thing it might be easier to just buy one.