SX Microcontroller Input / Output Methods

Ubicom Virtual Peripherals Library and App Notes

• Ports Serial (RS232 RS485 USB I2C IR ), Parallel, Mouse, Keyboard, Pins, Edge Detect
• Peripherals: Steppers, Motors, Printers, Switches, Encoders, Video, LCD, LED, Modems, Clocks, Cameras
  Sensors
• Physical Layer - Analog Signal Generation and Detection - OSI 1
  • DFS, Digital Frequency Synthesis
  • PWM, Pulse Width Modulation
  • A2D, ADC, Analog to Digital Conversions
  • DAC, Digital to Analog Conversion
  • PWC, Pulse Width Capture
  • Also: DSP, Digital Signal Processing, Sensors
• Data Link - Busses and Com Standards - OSI 2
  • CRC, Cyclic Redundancy Checks
    • CRC16 By Nikolai Golovchenko super fast!
    • CRC-16 Super fast and tiny! 17 instructions by Scott Dattalo +
    • CRC16 by Charles Ader with matching CRC routines for PIC, 8051, and x86
    • CRC16 and 32 by Dr. Imre Bartfai
  • USB, FTDI
  • I2C, IIC
  • IR, IrDA
  • RS-232, Async Serial
• Networks - OSI 3
  • TCP/IP and UDP/IP (internet)
  • Telephone, DTMF
  • RS-485

Also: General Input / Output (not SX specific)

NewsLetter

(Under construction from here down)

• Peripherals

  • ,
  • Mechanical
  • • Keyboards

• OSI 3 - Networks

  • Scott Dattalo DTMF Decoding, DTMF@
  • Denis Petrov's wwwPic The first free source web server in a PIC.
  • http://kyllikki.fluff.org/hardware/wwwpic2/ expands on Denis Petrov's work
  • http://www.mycal.net/wsweb/design/ 16F84 via a Seiko S7600A  (sources 1) embedded TCP/IP stack chip.

• OSI 2 - Data Link - Busses and Com Standards

  • Ken Websters PIC16C74 serial port multiplexer. This includes a complete SRAM interface and a packet system with addressing, control, checksums, etc... Actually almost a network (OSI 3) system.
  • http://www.hamradio-online.com/1999/feb/mdecoder.html PIC16F84 Morse Code Reader.
  • CW RF TX useing an 8 pin PIC, crystal oscillator generate variable width pulses
  • USB: Michael Hetherington's USB Keyboard demo

• OSI 1 - Physical layer - interfacing

  • Scott Dattalo: Tweaking a PIC for debounce, vertical counters, pwm32 and pwm256. Also ADC
  • PIC Microcontroller IO Routine Pulse Width Modulation from Scott Dattalo
  • http://www.jameco.com/Jameco/images/cc-images/jeff114.pdf Function generator
  • http://www3.mistral.co.uk/brian.clewer/ - i/o and interfaceing
  • ByteCraft: A Touch Sensitive Circuit, Software A/D and D/A Converters, Non-Linear Data Transformations
  • Temperature with the Watch Dog Timer?, http://www.myke.com/PICMicro/thermo.htm
  • Analog Output with jumper settings for voltage and current ranges
  • Pulse Width: 3 instruction resolution and 19 bit range http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/examples/14bit/pulse_measure.asm?rev=1.1&content-type=text/plain&cvsroot=gpsim

• Also: General Input / Output (not SX specific)

Comments:

• c.tallisKILLspam at virgin.net

  Has anyone managed to get the morse code reader to work? After many hours of fruitless effort I have not managed to get it to work properly. A hex file would have been helpful.

  James Newton replies: Are you refferring to the above link for http://www.hamradio-online.com/1999/feb/mdecoder.html ? If so, I would suggest you contact the author (Lawrence Foltzer, KE6UDL, photonsu at sonic,net) or the webmaster of the hamradio-online site.+

  +

See also:

• http://www.cdarc.co.uk/forum/viewtopic.php?t=39 Updated and documented code for the morse code reader can be found at:
  http://www.cdarc.co.uk/forum/viewtopic.php?t=39+

Questions:

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