117 lines
3.5 KiB
Plaintext
117 lines
3.5 KiB
Plaintext
The serialVFD-driver should work with all NEC FIPC8367 based VFDs:
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NEC FC20X2JA
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NEC FM20X2KB-AB
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NEC FC20X1SA-AB/AA
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...
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Tested only on: NEC FM20X2KB-AB
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The driver also works (tested) on "KD Rev 2.1" (an ATMEL AT90S....
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based FM20X2KB-AB replacement).
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Note: Above char. 128 the FIPC-displays and KD's charactersets
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are different.
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The driver may work or will be easy to get working on the following
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Displays / Controllers (not tested!).
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Display: Controller:
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FUTABA M204SD01AA FUTABA 5P00A016
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Noritake CU20026SCPB-T (microcontroller)
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Noritake CU20045SCPB-T28A ?
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... or compatible.
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(most Futaba/Noritake 7x5 dot VFDs with serial(rs232) interface
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(including serial(rs232)/parallel types))
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Maybe there are little changes in the commands to do to get all
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functions to work correctly. But because of the similarity of the
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protocols, it wont be much work.
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If you want to add a new device to the driver add a new section
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to the displaytype-switch-case in the init-function and fill it
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with the correct commands for the display.
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(Try which displaytype works best with your display, copy and modify
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it's section that is the easiest way I guess.)
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On this page I found pictures and datasheets from the VFD's:
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http://www.maltepoeggel.de/html/vfd/index.html
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It is possible to switch the display off and back on while the server is
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running. It may take a few minutes untill the next full refresh makes
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the display show everything correctly.
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To enable the bignumbers on 2-line displays (only this driver supports
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this yet) you have to edit "/clients/lcdproc/chrono.c" before compiling.
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In function "big_clock_screen" you have to replace the "4" by a "2" in
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this line: "if (lcd_hgt < 4)"
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This driver uses the serial mode of the displays.
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It is NOT possible to connect most of the displays directly to the
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serialport. The signal has to be inverted. I use the following
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circuit to do that job.
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Computer Display
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(signal)
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HDD Powerconnector
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color(Voltage)
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red(+5V) --------------------------------o----- +5V
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black(GND) --------------------o |
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| R
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| R 10k
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Serial(SUB-D 9Pin female) V* R
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pin(signal) |
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3(TxD) --RRRR--o--o o-----------------o----- RxD
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10k | | |
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| | C|
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| | ----- BC547c (or similar NPN)
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R | B| / |
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10k R o--|-| |
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R | \ |
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| --->- A*
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| E| |
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5(GND) --------o----------o----o----------------- GND
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Shield ------------------------------------------
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optional
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*connect near display
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The pins on the different displays vary.
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FM20X2KB-AB:
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CN1:
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Pin 33 <--- RxD
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(Testmode: connect pins 25 & 26 then power up)
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CN2:
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Pin 1 <--- +5V
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Pin 2 ---- GND
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KD Rev 2.1:
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blue connector (6pin in a row) (the important one!):
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--------------------------------
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| +5V +5V RxD GND GND GND |
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--------------------------------
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NOTE: hold the display in that position where you can read
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the "KD Rev 2.1" marking normally!
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gray connector (10pin 2 rows):
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Do not use. (the ATMEL ISP connector I guess)
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The two jumpers next to the gray connector:
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Normally not used.
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You can activate two different testmodes with them.
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