Hi all, I need to implement a simple file system for flash eprom in 24LC256 and up. I though before I started reinventing the wheel I'd ask if anyone has done...
Hi Folks, I managed to swing a fortnight's holidays from work, and I thought I'd tackle Mick's Z180 board again. Once more, I 'scoped 68 pins of Z180, all the...
... Don't you just love the technical description. BTW - have you check the caps on the Crystal Oscillator? This would also be a plausible explanation as to...
... Exactly the same as I when I 'scoped the signals. ... Looks like I'm a mong also then as I just assumed the 'new' CPU was fine and come to think of it,I...
... back ... They don't call it a wigglescope for nothing, yaknow!! ... be ... The crystal oscillator (Xin Xout, pins 3 and 4) works on both CPU's..... It's...
... clocking ... back ... one, ... Or, noting that it's not quite compatible with a real Z180 (although possibly defaults to "normal Z180" mode on powerup) it...
... I'll go through these docs again but I see nothing that would stop the S version working inplace of the standard version. The extended options all seem to...
... definitively ... just ... That's my take on it too, but I can't see Zilog shipping faulty "Super whizzbang you really ought to upgrade to these parts"...
... Ahhh but you forget it's ZiLOG we're talking about here..You know, the company that loves to release working silicon, ship a few thousand units and then...
Does anyone have access to a calibrated frequency and/or time source? I picked up a really nice HP Universal Counter off eBay for peanuts and I want to check...
... I have a DS32KHz chip, which is supposed to be 32000.00000000000000000000000000Hz (or something). Check the d/sheet. If it's any good to ya, I could loan...
... That would be nice, better yet though, you could bring it along to a meeting and anyone who's interested could bring their counter/scope/DMM/whatever and...
... is? That mightn't happen for a couple months yet... I'm away on holidays for the August meeting, and possibly away on business for the September one..... ...
Question for the AVR savvy out there. I seem to be having a software issue with an AVR program I'm working on. Anyone remember anything semi-broken about AVR...
Tottally uneducated guess here. assumption 1. AVR uses switched capacitor network for a2d assumption 2. Your problem is caps are retaining charge guess =...
I'm a PIC guy not an AVR guy so cut me some slack :-) When doing A/D conversion on a PIC you must first select the channel, then delay for a setting time (to...
... That's what it sounded like to me too, but nowhere in the docs does it say anything about that. The S/hold bit is done automagically within the 26 ...
Aaaaaaaaaarrrrrrrrgggggggghhhhhhhhh My bro-in-law has been playing around with keyboard mapping code. Mapped the "enter" key to the "ctrl-enter" key.........
... and ... nasty ... Now that you mention it.... I _knew_ something about this whole mess (of mine) was familiar!! *sigh* Same old wheels, same old punctures....
Hi Folks, Well, it seems like if I scan each input twice, the values are rock steady, and not the slightest bit interdependent (other than the fact that two of...
I am sure you will find the problem was the settling time which is dependant on the size of the internal hold capacitor, the input impedance of the port and...
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