Search found 1259 matches

by Pito
Mon Jul 24, 2017 3:52 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 30
Views: 486

Re: TEK 4010/4014 Vector Graphics terminal DEMO

In this 25y+ old newsgroup board ftp://invisible-island.net/shuford/terminal/tektronix_news.txt I found some info on the GIN mode and mouse coordinates: There are 2 modes of reading the GIN co-ordinates, interactive and non-interactive. Interactive mode: the Xhair cursor is displayed, the operator m...
by Pito
Mon Jul 24, 2017 3:14 pm
Forum: Working / ported libraries
Topic: 433MHz RF remote control
Replies: 9
Views: 1176

Re: 433MHz RF remote control

First, you must see the rx output data pin "does something" when you press a button on the tx. On an o'scope you will see a pulse train with levels like near 0 up to 4V.
Then you may start to mess with software.
by Pito
Mon Jul 24, 2017 3:11 pm
Forum: Working / ported libraries
Topic: 433MHz RF remote control
Replies: 9
Views: 1176

Re: 433MHz RF remote control

Try 5V and measure the output signal level, it should not be bigger than 3.3V.
Or, put a 3k3/2k2 resistor divider in the series with Maple input.
by Pito
Mon Jul 24, 2017 3:06 pm
Forum: Working / ported libraries
Topic: 433MHz RF remote control
Replies: 9
Views: 1176

Re: 433MHz RF remote control

Do you power the MX-RM-5V from 5 or 3.3V?
by Pito
Mon Jul 24, 2017 2:56 pm
Forum: Working / ported libraries
Topic: 433MHz RF remote control
Replies: 9
Views: 1176

Re: 433MHz RF remote control

Did you get at least a 433.xx resonator on the Rx or Tx board (looks like a small smd crystal with 3 or 4 pins)?
If not, your rx or tx could be fully off the frequency..
Do you power the MX-RM-5V with 5 or 3.3V?
by Pito
Mon Jul 24, 2017 11:01 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 30
Views: 486

Re: TEK 4010/4014 Vector Graphics terminal DEMO

@Roger: here is the float2string code I used to use within our fpu exercise.. I have to double check as there is a davekw7x version floating around which has got a bug. http://www.stm32duino.com/viewtopic.php?f=39&t=2001&hilit=pito+fpu&start=60#p26771 This version below shall utilize the single prec...
by Pito
Mon Jul 24, 2017 10:22 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 30
Views: 486

Re: TEK 4010/4014 Vector Graphics terminal DEMO

This is a test of alpha terminal mode. // A simple TEK4010/4014 Vector terminal DEMO // You need TeraTerm or Xterm switched to TEK4010/14 Emulation // // Use fast Serial over USB for best experience // // Shows alpha terminal mode // // Provided as-is, no warranties of any kind are provided :) // by...
by Pito
Mon Jul 24, 2017 8:52 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 30
Views: 486

Re: TEK 4010/4014 Vector Graphics terminal DEMO

@Chris: mind the tek terminal is not well suited for drawing filled primitives, as there is not such command afaik.. Adafruit is pixel-oriented, tek is vector oriented with the "draw a line from A,B to C,D" as the only graphics primitive.. Rendering adafruits demos with tek emulation may work, but i...
by Pito
Mon Jul 24, 2017 8:24 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 30
Views: 486

Re: TEK 4010/4014 Vector Graphics terminal DEMO

I may just add tek.print and tek.println which just call serial.print and serial.println Yes, that is ok. There is one issue with Serial.print - it cannot print the scientific notation - like: -3.45E-6. So we have to use something instead, which can do.. PS: the Tek terminal, when in alpha mode (Te...
by Pito
Sun Jul 23, 2017 6:31 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX speed problem
Replies: 9
Views: 188

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'...