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by ahull
Thu Jan 19, 2017 11:59 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 521
Views: 26361

Re: $10 O-Scope revisited

OK that is a much smarter way of doing this I suspect. :D
by ahull
Thu Jan 19, 2017 10:53 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 521
Views: 26361

Re: $10 O-Scope revisited

There are quite a number of ways to do this, some more accurate and some quicker than others. If you want a little light bed time reading ;) -> https://en.wikipedia.org/wiki/Hilbert%E2%80%93Huang_transform https://en.wikipedia.org/wiki/Fourier_transform https://en.wikipedia.org/wiki/Instantaneous_ph...
by ahull
Tue Jan 17, 2017 11:10 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 382

Re: Setup of STM32F103CBT6 (Maple Mini) board

I had the same issue. Turns out the vendor had locked the flash page of the boot loader.
I wonder how easy it would be to add an unlock instruction to the sketch (Roger?!)
by ahull
Tue Jan 17, 2017 10:52 pm
Forum: Libary request
Topic: IRlib on STM32?
Replies: 32
Views: 1585

Re: IRlib on STM32?

You can cheat a bit if you want to send and receive serial data over IR. -> http://www.ebay.com/itm/5V-IR-Infrared-Remote-Decoder-Encoding-Transmitter-Receiver-Wireless-Module-/381593359339?hash=item58d8bc93eb:g:OOEAAOSwGYVXBLQW For what its worth, here is ST's take on the problem -> http://www.st.c...
by ahull
Tue Jan 17, 2017 3:28 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 382

Re: Setup of STM32F104CBT6 board

If you have a USB to Serial converter, you can flash the bootloader using that, instead of the sketch. But, the sketch always worked for me. But perhaps some vendors started to lock the bootloader flash pages. One of my recent Bluepills did have the bootloader flash locked, I used my ST-Link clone ...
by ahull
Mon Jan 16, 2017 11:44 pm
Forum: Generic STM32F103
Topic: Setup of STM32F103CBT6 (Maple Mini) board
Replies: 31
Views: 382

Re: Setup of STM32F104CBT6 board

Can I ask, the title of the post is "Re: Setup of STM32F104CBT6 board" am I correct in saying it should actually be "Re: Setup of STM32F103CBT6 board"?
by ahull
Mon Jan 16, 2017 1:24 pm
Forum: General discussion
Topic: TFT Pins
Replies: 4
Views: 96

Re: TFT Pins

The image in the Ali Express link does appear to show a device with integrated touch panel. The small fpc connector to the left that runs from the screen to the main fpc connector looks like a touch panel connection to me, however the pictures are not very clear so I can't be certain, and obviously ...
by ahull
Sun Jan 15, 2017 4:12 pm
Forum: Projects
Topic: $10 O-Scope revisited
Replies: 521
Views: 26361

Re: $10 O-Scope revisited

I've not tried a "headless" version. In the unlikely event that I get a spare moment in the next week or so, I may give it a go. I can't think why the code will particularly care , so long as you comment out all of the bits that output anything to the screen (the graticule, plot, credits, ...
by ahull
Sun Jan 15, 2017 4:08 pm
Forum: Off topic
Topic: DIY Oscilloscopes - List and Discussions
Replies: 11
Views: 257

Re: DIY Oscilloscopes - List and Discussions

Nice... as I believe I may have said before, you can never have too many oscilloscopes.. or multi-meters.
I suspect you may however have just provided the catalyst to increased the "clutter" in the ahull household. I'm not sure my wife will approve. :lol:
by ahull
Sun Jan 15, 2017 3:59 pm
Forum: Generic STM32F103
Topic: Changing Timer1 frequency will effect UART ?
Replies: 6
Views: 99

Re: Changing Timer1 frequency will effect UART ?

so UART has its own timer other than tim1 ? The peripheral clocks are, so far as I recall not directly related to the timers. They do however depend on the system clock and its divider. Full details here -> http://www.st.com/content/ccc/resource/technical/document/reference_manual/59/b9/ba/7f/11/af...

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