Re: More CPLD explorations

From: Jim Brain <>
Date: Tue, 25 Feb 2014 20:06:23 -0600
Message-ID: <>
On 2/25/2014 1:28 PM, wrote:
> Exactly - I called it “magic sequence” but it’s the same idea. And if 
> done well, it should be “robust enough” to prevent accidental 
> triggering. “Cannot" is rather incorrect but the chances are 
> negligible. […] 
I left the detail off the original question since I felt people would 
quickly jump to "how can we enable such things" and wouldn't answer the 
original question, which is: "is there anything worth the effort?"

> I very much like this approach. The only drawback is that the 
> switching code has to be relatively lengthy and placed properly before 
> running it.
I dunno, emulating SPI in asm doesn't sound like too much work.

On your second point, I would make it a requirement that each othhr mode 
would have something unique that could be checked right after the mode 


Jim Brain

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Received on 2014-02-26 03:00:07

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