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by Pito
Sun Jul 23, 2017 6:31 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX speed problem
Replies: 9
Views: 173

Re: [STM32GENERIC/HAL] SerialUSB TX speed problem

It seems my above results (the tables with speeds) were wrong.. :evil: The Teraterm does not receive all 1mil chars with larger cdc buffer, but a fraction of it. The larger the buffer in CDC the smaller amount of data I get. Therefore the total time for TX was smaller and the TX speed was higher. I'...
by Pito
Sun Jul 23, 2017 12:13 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX speed problem
Replies: 9
Views: 173

Re: [STM32GENERIC/HAL] SerialUSB TX speed problem

The bigger buffers are fast, but TX looses the data :( While running the Tek demo against TeraTerm Tek emulator http://www.stm32duino.com/viewtopic.php?f=18&t=2336&start=20#p31835 the buffer sizes larger than 256 bytes show corruptions in the picture.. The libmaple usb works, not sure on the buffer ...
by Pito
Sun Jul 23, 2017 12:08 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 21
Views: 379

Re: TEK 4010/4014 Vector Graphics terminal DEMO

Another demo you may try or add to the library.
by Pito
Sun Jul 23, 2017 10:44 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 21
Views: 379

Re: TEK 4010/4014 Vector Graphics terminal DEMO

@Roger: Thanks! The next improvements could be: 1. introducing ie Tekplotv and Tekploth - vertical and horizontal lines with short addressing 2. Tekbox with short addressing 4. introducing the 12bit mode 5. when talking "a perfect library" - the most difficult part would be to create a mechanism for...
by Pito
Sun Jul 23, 2017 9:58 am
Forum: General discussion
Topic: Blue Pill that kills
Replies: 1
Views: 41

Re: Blue Pill that kills

What might the problem be? Bad voltage regulator? Bad pull up? I've checked visually for obvious things like shorts or bridged tracks, etc and can't see anything. Double check the component's values like resistor and capacitors, they could be shorted as well (or wrong values deployed, like 0ohm ins...
by Pito
Sat Jul 22, 2017 4:05 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 21
Views: 379

Re: TEK 4010/4014 Vector Graphics terminal DEMO

While deleting lines by overwriting them with the background ink works perfectly, overwriting the chars is leaving a weak artifacts like here Font Artifacts.JPG Interesting. Maybe ClearType related? Otherwise it works. No Tekcls() and static objects redraw is needed anymore :).. Update: no artifacts...
by Pito
Sat Jul 22, 2017 1:40 pm
Forum: Projects
Topic: Need advice: Metal detector with stm32f103
Replies: 50
Views: 2221

Re: Need advice: Metal detector with stm32f103

:lol:
How does it work under salty water? Is the signal of the same shape/timing as in the air?
by Pito
Sat Jul 22, 2017 1:29 pm
Forum: Projects
Topic: Need advice: Metal detector with stm32f103
Replies: 50
Views: 2221

Re: Need advice: Metal detector with stm32f103

The D15, S10, V10, B10 are the coordinates of the Treasure N.6 (of a large value ++) ? :P
by Pito
Sat Jul 22, 2017 12:48 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 21
Views: 379

Re: TEK 4010/4014 Vector Graphics terminal DEMO

This doc http://vt100.net/docs/vt3xx-gp/chapter13.html#S13.14 shows following table - how the Tek coordinates are sent, and how the "short version" of sending the coordinates works. The key message here is, the last byte (Low X) is the byte which triggers the actual beam on, and does the draw.. The ...
by Pito
Sat Jul 22, 2017 12:19 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 21
Views: 379

Re: TEK 4010/4014 Vector Graphics terminal DEMO

There are the updated routines in the first post. With defines for colors, fontsizes and line styles. Still the none_CLS way of updating the screen content has to be elaborated. My idea is to rewrite the dynamic information on the screen with the previous information but with black ink (with the bac...