It feels realy good to see that SEGGER has offered a firmware running on the FRDM OpenSDA platform which makes OpenSDA compatible to J-Link lite, allowing users to take advantage of most J-Link features. It means we can do the same things with high-performance by using the low-cost OpenSDA platform.
1) How to do?
The J-Link firmware SEGGER offered is just an OpenSDA Application, so put the FRDM board into Bootloader mode and update the firmware, which is enclosed in the attached,just like other OpenSDA applications. Then put it into normal mode and the J-Link driver will be installed. Open the J-Link Commander, and we will see the diagram below.
In IAR IDE, some setup steps need to follow:
2) Why to do?
Most inland customers get used to J-Link to debug ARM based products since ARM7 time and the J-Link is realy good debugger by my experience, althougn the legal J-Link is expensive. So we can help the customer to develop and evaluata products with low-cost OpenSDA platform.
In addition, live watch in IAR, which can update the varibles in time, is only supported with J-Link engine, which is very important to customer.
May be used with ARM based Freescale devices only;
Only debugging on evaluation boards is allowed. Debugging on custom hardware is not supported and not allowed;
No production flash programming support;
Unlimited breakpoints in flash available for evaluation only;
No support is given.
OpenSDA is a very potential platform. USBDM has also released a firmware which is compatible to OpenSDA recently. So an open source OpenSDA release from P&E is expected and to help customer to custom their own debugger hardware, which can help us to extend our Kinetis products more convenient.