Chain XS1-l4 with XS1-l8

[countbadger]

Hi, I am trying to chain two custom XMOS boards together using a fast xlink between channels X0LB on both boards. Building a simple xn file for the application however always seems to return "error: architectures cannot be mixed (XS1-L4A-64/XS1-L8A-64)". Does this imply that the XS1-L4 and XS1-L8 cannot be chained together in the same application? I cant seem to find documentation relating to compatibility of architectures. I have attached the related XN file so if anyone has some insight into this issue, help would be greatly appreciated.

[Guest]

Ideally, you should be able to chain L4 device to an L8 device without any issues. Only thing I can see from the XN file is that both the devices are running at different system frequencies. I guess this might be the reason you are seeing the error (not 100% sure though).

[srinie]

Check if this is helpful? One of the similar posts earlier debugged by Sethu @

http://www.xcore.com/forum/viewtopic.php?f=8&t=2520

 

[countbadger]

Hi guys, thank you for the responses. I tried lowering the core frequency of both chips to the same speed but alas i still have the same error. I tried going through pasaru's question but the resolution there seems to be to replace the XS-L4 with XS-L8 in the xn file. I attempted this earlier and the code compiles but have not tried running it on the boards yet. Ill test it as soon as i get home and update with the results. 
 
I have continued to dig but still have no new information on XMOS architecture types or their compatibility with each other. 

[countbadger]

Just an update. I tried replacing XS1-L4 with XS1-L8 in the xn file, which allows the device to build without error. Now however, i get "xrun: First stage multi-node boot failed, please check XN file and Xmos link connectivity" when trying  to program the device.