Theres only really one thing that upsets me about picaxe

[Coyoteboy]

The slow ADC read speed. Theres so much more i could do with them if I could get ~500sps out of them

 

[Brietech]

Where are you storing them? I2C EEPROM? I thought that the ADC reads actually could go pretty quickly (i.e. greater than 500 samples/sec).

 

[Coyoteboy]

Using normal ram, i was under the impression from previous posts(and hence not tried!) that it takes up to 250ms to do a conversion?

 

[Brietech]

readadc time is closer to .75 milliseconds or so.

 

[Coyoteboy]

Better than i thought I admit...

 

[BeanieBots]

Doing a search of the forum for “Command Timing” with “Search for all the words together” selected, will show that the readadc command takes around 250uS.
Admittedly, there have been many firmware upgrades since these tests so probably worth a re-visit.

<A href='http://www.rev-ed.co.uk/picaxe/forum/Topic.asp?topic_id=1157&amp;forum_id=9&amp;Topic_Title=timing%2Bof%2Bbasic%2Bcommands&amp;forum_title=No+new+posts+please%21+4 ' Target=_Blank>External Web Link</a>

<A href='http://www.rev-ed.co.uk/picaxe/forum/Topic.asp?topic_id=647&amp;forum_id=7&amp;Topic_Title=PICAXE%2BInstruction%2BTiming&amp;forum_title=No+new+posts+please%21+2 ' Target=_Blank>External Web Link</a>

Hopefully the links now work.

Edited by - beaniebots on 10/04/2007 15:33:18

 

[lbenson]

BeanieBots--there seems to be a problem with these links.

 

[jodicalhon]

&lt;br&gt;http// has somehow been added after the http://.