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Re: $10 O-Scope revisited

Posted: Thu Apr 20, 2017 1:38 pm
by ahull
efftek wrote:@Andy Hull, I would like to send one of my boards to you so you can play with it and see what you can come up with using a TFT shield rather than a SPI TFT. If you would be interested, please PM me. I'll fit the components, you just need a screen.


Board received, thanks. :D Blinkenlights are a-blinking, so it appears to be working. I'll pop a display and a button cell on it as soon as I get a chance.

Re: $10 O-Scope revisited

Posted: Thu Apr 20, 2017 2:25 pm
by ahull
BW is there a schematic? Although it looks pretty self explanatory, it might avoid me making any smoke releasing assumptions.

Re: $10 O-Scope revisited

Posted: Thu Apr 20, 2017 3:31 pm
by efftek
ahull wrote:BW is there a schematic? Although it looks pretty self explanatory, it might avoid me making any smoke releasing assumptions.


There is, but I don't have access as I'm at my daughters house. However, the pins marked 5V And 0V on the board are all correct as are the labels next to the blue pill and the analog input pins. It's just the digital pin numbering I cocked up on the silk screen and they are only in the reverse order. I'll put a schematic on here tomorrow.

Happy playing.

Steve.

Re: $10 O-Scope revisited

Posted: Thu Apr 20, 2017 10:44 pm
by ahull
.rorrim eht ni ti ta kool ot evah ot gnitcepxe t'nsaw I ,ddo tib a s'taht lleW

Image

.. also placing the bluepill on the same side of the board as the display... you are right.. it was not a good move.

Other than those two issues.. its working fine. :D

Re: $10 O-Scope revisited

Posted: Fri Apr 21, 2017 2:03 am
by Rick Kimball
I guess you weren't named Leonardo in a past life : )

Re: $10 O-Scope revisited

Posted: Fri Apr 21, 2017 8:28 am
by rexnanet
ThunderOwl wrote:Hello again here.
Today I did some fancy thing I was planning for some time. Replaced chip on one of my "BluePill" boards with STM32F303 microcontroller.
Sure I am not the first one doing that, I know. Many have thoughts that would be nice if chinese manufacturers would make cheap "F303 Pills", but there are none (AFAIK). So, we can make one, pinouts are the same as F103. Here my pictures:
http://bildites.lv/a/pjuhvaf5#6jv5nwen
One of pics shows this board running tomeko.net "MiniScope v2d" firmware.
I thought, maybe that is something to consider here in our "O-Scope" variations. If someone write code for F303 (better ADCs, etc), with such BluePill conversion we have "drop-in, pin-compatible" hardware.
Technically, I did "blow off" old chip with hot air pistol, and soldered STM32F303CBT6 in place.
Thoughts, anyone? :)


Just got my brand new F303's :)
Have to desolder ( "blow off" :D or X-acto cut) the F103's and solder the new ones :)

I haven't checked yet but is there "arduino" support for the F303?

P.S. I've also got the F429's soldered on an adapter to start messing with them :D but that's another story :)

Re: $10 O-Scope revisited

Posted: Sun Apr 23, 2017 3:08 pm
by efftek
Pin config for the GP Board (with correct labels). If my memory was bigger than 32k, Id have remembered to do it on Friday!

Steve

GP01 pins.jpg
GP01 pins.jpg (164.99 KiB) Viewed 93 times

Re: $10 O-Scope revisited

Posted: Sun Apr 23, 2017 7:25 pm
by CrtSuznik
Hey guys. I'm having problems uploading to my board via stlink. (I'm new to the whole st-link thing...and the stm32 too for that matter)

I've got a generic "blue pill", the recommended display and a st-link v2.
I've previously uploaded the original sketch to the board with a TTL thingy (i've no idea what it's actually called, new to this, remember?)
But the problem was I couldn't give the oscilloscope comands through the Serial monitor in the Arduino IDE. That's why I got a ST-Link V2

Now however when I plug in the stlink and the board into it (I think I have the proper drivers since it does show up in Device manager on windows 7)
I can't seem to select a port

I've read that to upload via the ST-link I don't even need to select it, but...how can I give it commands if I can't open the Serial monitor because I can't select a port?

Please help, I'm lost here :(

Re: $10 O-Scope revisited

Posted: Sun Apr 23, 2017 7:38 pm
by Rick Kimball
Why do people here constantly pollute the threads with non related questions? It is getting ridiculous now.

... Looks around for a moderator control panel and the delete post button ...

Re: $10 O-Scope revisited

Posted: Tue Apr 25, 2017 9:20 pm
by efftek
Rick Kimball wrote:Why do people here constantly pollute the threads with non related questions? It is getting ridiculous now.


Who are you referring to Rick?