Search found 203 matches

by rexnanet
Sat Oct 07, 2017 6:24 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 683
Views: 86128

Re: $10 O-Scope revisited

I think that it might be kind of "2 separate channel interleaving". You might get ADC2 samples on the second 16 bits of every 32bit block. But channel 2 will not be sampled at the same time as channel 1. It will be offset by 7 ADC clocks. If setting ADC2 to pinB works, than the what I said before sh...
by rexnanet
Sat Oct 07, 2017 6:05 pm
Forum: Projects
Topic: DLO-138 OScope
Replies: 95
Views: 4738

Re: DLO-138 OScope

I'm not receiving e-mail notifications... Didn't notice that stuff was going on here :) Also a week of vacations meanwhile :) I've been able to get the basic wiring from your setup (@mausimick) (LCD and one encoder) and seems that it's working "OK". There are some glitches on D1 and D2, the selectio...
by rexnanet
Fri Sep 08, 2017 5:42 pm
Forum: Projects
Topic: DLO-138 OScope
Replies: 95
Views: 4738

Re: DLO-138 OScope

Ok, I'll take a look during this weekend. Today is a "no go" :)
by rexnanet
Fri Sep 08, 2017 9:47 am
Forum: Projects
Topic: DLO-138 OScope
Replies: 95
Views: 4738

Re: DLO-138 OScope

As a final resource, I can provide the libs I use that are from the early tests and "worked".
by rexnanet
Fri Sep 08, 2017 8:45 am
Forum: Projects
Topic: DLO-138 OScope
Replies: 95
Views: 4738

Re: DLO-138 OScope

Rexanet, now I have big problems - I think with the Adafruit_ILI9341_STM - lib. The SPI graphic functioned, but I can't activate other SPI devices like MCP6S91/92 or MCP4822 (DAC). I reduced the speed to 9MHz and back to 36MHz, but with no success. I tested it with "blue-Pill" and Maple-Mini - the ...
by rexnanet
Mon Sep 04, 2017 8:16 am
Forum: Projects
Topic: DLO-138 OScope
Replies: 95
Views: 4738

Re: DLO-138 OScope

Rexanet, I think , the preamp in DSO203 is very complex , is much work. Perhaps It's easier to take a LTC6912-1 (2 channel ,gain: 0,1,2,5,10,20,100) or an LTC6912-2 with gain 01,2,4,8,16,32,64), and you need only a input stage(for dividing and protection with clamp-diodes) and a voltage spltter to ...
by rexnanet
Fri Sep 01, 2017 10:18 am
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 683
Views: 86128

Re: $10 O-Scope revisited

Thanks :)
Maybe we should migrate this talk to the other post... :)
by rexnanet
Fri Sep 01, 2017 8:59 am
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 683
Views: 86128

Re: $10 O-Scope revisited

I don't have a video of it right now, but I can make a video or some screenshots with certain frequencies displayed some next days. Here are screens of my weird construction, but there are no pics that would show performance: http://bildites.lv/a/sfkqpxdx#tjbrytfu A video of it working would be gre...
by rexnanet
Thu Aug 31, 2017 4:41 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 683
Views: 86128

Re: $10 O-Scope revisited

Thanks ThunderOwl!

Do you have a video of the F303 oscilloscope version from that forum ("Murzik")?
by rexnanet
Thu Aug 31, 2017 1:44 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 683
Views: 86128

Re: $10 O-Scope revisited

RogerClark wrote:
Wed Aug 30, 2017 9:12 pm
rexnanet wrote:
Wed Aug 30, 2017 12:45 pm

Is there support for F303'duino?
Use STMs Core or STM32GENERIC
Thanks!
I'll give it a try when I solder the F303 on the BluePill board.