Re: [casper] Possible CASPER workshop lecture topic

2013-07-23 Thread Jack Hickish
On 22 Jul 2013 18:00, John Ford jf...@nrao.edu wrote: Hi Rich, In hoping to get a yellow block tutorial up and running (there is a tutorial Dave George wrote a few years ago which I'll use as a starting point), probably based around a bidirectional gpio block. But if you (or anyone

Re: [casper] strange problem in the FFT

2013-07-23 Thread Andrew Martens
Hi Dave Thanks for sending your test model. Since it was saved using a newer Simulink version, I had to simulate it using a newer toolflow version. Sorry about that. Doing so did indeed show the FFT problem you described. I then re-simulated my test model in the newer Simulink version

[casper] Idea for speeding up CASPER build times

2013-07-23 Thread Ryan Monroe
Hey all, So I just finished a ROACH2 build, and everything from copy base package through bitgen took almost 2 hours. It looks like this is because I have 48 shared memories, plus about another 20 snapshots. The tools seem to be synthesizing each of these separately. I would expect that

Re: [casper] Idea for speeding up CASPER build times

2013-07-23 Thread Andrew Martens
Hi Ryan So I just finished a ROACH2 build, and everything from copy base package through bitgen took almost 2 hours. It looks like this is because I have 48 shared memories, plus about another 20 snapshots. The tools seem to be synthesizing each of these separately. I would expect

Re: [casper] strange problem in the FFT

2013-07-23 Thread David MacMahon
Hi, Andrew, On Jul 23, 2013, at 7:54 AM, Andrew Martens wrote: The only way that the script could generate logic that would result in correct data would be correct if; 1. The Relational block could get a latency of 1 when no latency was specified i.e default operation has latency of 1 in

[casper] what is the power up option?

2013-07-23 Thread Tom Kuiper
Greetings all! The ActelFusion MMS subsystem on the ROACH-1 boards has a power up on reset option. During some testing a week or so ago, this option was turned off on one of our ROACHes. So I was not surprised that I could not program the FPGA with firmware. However, I was surprised to see

Re: [casper] strange problem in the FFT

2013-07-23 Thread Andrew Martens
Hi Dave The only way that the script could generate logic that would result in correct data would be correct if; 1. The Relational block could get a latency of 1 when no latency was specified i.e default operation has latency of 1 in that toolflow version. You're right! That's exactly the

Re: [casper] strange problem in the FFT

2013-07-23 Thread David MacMahon
Hi, Andrew, On Jul 23, 2013, at 10:03 PM, Andrew Martens wrote: Well, I am certainly glad that there is a rational explanation. Me, too! So the FFT has not been broken for ~2 years or so, just since anyone upgraded their tools. Yes, it only affects people using the 14.x System Generator