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oleg_kaa

Beginner

Date of registration: Feb 10th 2011

Posts: 3

1

Thursday, February 10th 2011, 1:48pm

JLink EDU vs J-LINK

Hello! There are exist difference in speed for J-LINK EDU and for J-LINK, for operation like a RAM memory dump?

SEGGER - Alex

Super Moderator

Date of registration: Dec 18th 2007

Posts: 1,516

2

Thursday, February 10th 2011, 2:05pm

Hi,

no, there should not be a difference in speed between the regular J-Link and a J-Link EDU.
In general, J-Link EDU is fully compatible to the regular J-Link, but may NOT be used to develop a product.

Terms of use:

You may use the J-Link EDU for non profit educational purposes only. Non-profit educational purposes means that you may not use the J-Link EDU and its J-Link software

* direct or indirect in or for a profit organization or business purposes or other undertaking intended for profit
* direct or indirect in any other commercial environment (e.g. office)
* to develop, debug, program or manufacturer a commercial product (or parts thereof)
* to use it to either earn money or reasonably anticipate the receipt of monetary gain from it.


Best regards
Alex

oleg_kaa

Beginner

Date of registration: Feb 10th 2011

Posts: 3

3

Thursday, February 10th 2011, 2:20pm

Hi,

no, there should not be a difference in speed between the regular J-Link and a J-Link EDU.
In general, J-Link EDU is fully compatible to the regular J-Link, but may NOT be used to develop a product.

I am use J LINK EDU for educational purposes only, for porting Linux on my Pocket PC device.

Speed test of memory dump:
Wiggler jtag(self assembled): 25 kbytes/s
jlink edu: 12 kbytes/s

This result am not expected :)

SEGGER - Alex

Super Moderator

Date of registration: Dec 18th 2007

Posts: 1,516

4

Thursday, February 10th 2011, 5:42pm

Hi,

In your original post you wrote:

Quoted

There are exist difference in speed for J-LINK EDU and for J-LINK


Did you also test it with a J-Link? Ist the J-Link EDU slower?
Which JTAG speed did you use when performing the memory read?
Which CPU do you use? (Core, Chip name, Chip manufacturer).

- Alex

oleg_kaa

Beginner

Date of registration: Feb 10th 2011

Posts: 3

5

Thursday, February 10th 2011, 7:27pm

Did you also test it with a J-Link?

No, only EDU version
Which JTAG speed did you use when performing the memory read?

For J-LINK EDU 100-12000 Khz, for Wiggler 500 Khz.
Which CPU do you use? (Core, Chip name, Chip manufacturer).

Intel/Marvell PXA272. I known, you tell XScale is not supported, but, you promised this in 2008(!):
XScale support is scheduled for later this year.

*i am use openocd server