Search found 147 matches

by XMatt
Fri Feb 19, 2016 1:45 pm
Forum: Q&A
Topic: First xSCOPE function call
Replies: 3
Views: 5902

Re: First xSCOPE function call

The workaround for this until the new tools release is,

1. Use the xscope_core_bytes() function, this does not have the issue
or
2. Use the xscope_bytes() function but always pad your data to at least 8 bytes.
by XMatt
Tue Apr 07, 2015 10:49 am
Forum: XMOS Devices
Topic: xcore-200 JTAG
Replies: 7
Views: 8855

Re: xcore-200 JTAG

So the 2 TAP's have now been combined into 1 at the top level in the device, this makes things quite a bit simpler. There is a new instruction in the top level TAP for booting from JTAG and setting the PLL. SET_TEST_MODE 0x8 - Load chip test mode register with DR · The chip test mode control registe...
by XMatt
Fri Apr 03, 2015 8:55 am
Forum: XMOS Devices
Topic: xcore-200 JTAG
Replies: 7
Views: 8855

Re: xcore-200 JTAG

Apologies, the JTAG section still requires updates as there have been some changes. As far as I know yours are the only other tools that require this information. The changes that you will need are, - The JTAG ID is 0x5633 - There is only one top level tap (rather than the 2 in XS1) - The same instr...
by XMatt
Mon Mar 23, 2015 4:57 pm
Forum: XMOS Devices
Topic: New XMOS chips??!
Replies: 57
Views: 76073

Re: New XMOS chips??!

Folknology wrote:Thanks Xmatt

Does the boot actually use QSPI to improve performance as well as overlays?
Yes QSPI boot, the embedded flash parts have QSPI flash internally.
by XMatt
Mon Mar 23, 2015 3:21 pm
Forum: XMOS Devices
Topic: New XMOS chips??!
Replies: 57
Views: 76073

Re: New XMOS chips??!

- The links are fully compatible with the XS1-L/U/A series of devices.
- MSEL is not needed on xCORE-200, JTAG boot mode is selected via an internal register in the top level JTAG TAP.
by XMatt
Fri Dec 12, 2014 1:26 pm
Forum: Q&A
Topic: XTAG issues on Windows 7 (64 bit) and USB 3 ports
Replies: 3
Views: 12888

Answer 2998

<t>There is a long standing issue with windows 7 and USB 3 drivers, USB 3 was not supported by microsoft with their own driver until windows 8, this means that every machine has to use the manufacturers windows usb 3 driver. There seems to be a problem in that some of them do not exhibit spec compli...
by XMatt
Fri Dec 12, 2014 1:18 pm
Forum: Q&A
Topic: XTAG issues on Windows 7 (64 bit) and USB 3 ports
Replies: 3
Views: 12888

XTAG issues on Windows 7 (64 bit) and USB 3 ports

All versions of the XTAG (XTAG-2 / XTAG-3 / XTAG-Pro / startKIT) have issues enumerating on 64 bit windows 7 when used with USB 3 ports.

Is there anything that can be done to make them work correctly?

by XMatt
Mon Oct 20, 2014 2:48 pm
Forum: Q&A
Topic: XC-1A not showing in xTimeComposer
Replies: 1
Views: 2063

Answer 2875

<r>Have you followed these instructions?<br/> <br/> <URL url="http://www.xcore.com/questions/2099/how-do-i-enable-xmos-boards-ftdi-deb"><LINK_TEXT text="http://www.xcore.com/questions/2099/how ... s-ftdi-deb">http://www.xcore.com/questions/2099/how-do-i-enable-xmos-boards-ftdi-deb</LINK_TEXT></URL>....
by XMatt
Thu Jul 24, 2014 3:36 pm
Forum: startKIT
Topic: Max usb tranfer speed on Startkit?
Replies: 5
Views: 5500

Re: Max usb tranfer speed on Startkit?

There is an library for implementing the communication with xscope host applications here if you want to see how to parse the data from the socket interface from xrun.

https://github.com/xcore/sc_xscope_support
by XMatt
Mon Jul 14, 2014 2:41 pm
Forum: Development Tools and Programming
Topic: JTAG write to Node Config registers?
Replies: 10
Views: 6615

Re: JTAG write to Node Config registers?

The node configuration registers are read only via JTAG.

The only registers that can be written directly via JTAG are those used for interaction with the debug ROM and to put the device into debug by generating a debug interrupt.