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builderpages:plasmo:cpldtil [2019/11/06 07:29]
plasmo created
builderpages:plasmo:cpldtil [2019/11/06 07:47] (current)
plasmo
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 CPLDTIL is a RC2014-compatible 6-digit LED display; each digit is made of 20 individual 0603 LEDs. CPLDTIL is a RC2014-compatible 6-digit LED display; each digit is made of 20 individual 0603 LEDs.
 +
 +{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​plasmo/​cpldtil/​dsc_50821106.jpg?​direct&​600x421}}
 +
 +===== Features =====
 +
 +  * RC2014 compatible
 +  * 6 digits with individual 0603 LEDs
 +  * Programmable functionalities with EPM7128S
 +  * 5 user definable programmable I/O
 +  * Operate with 22MHz Z80
 +
 +{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​builderpages/​plasmo/​cpldtil/​dsc_50801106.jpg?​direct&​600x401}}
 +
 +===== Function =====
 +
 +The CPLDTIL is driven by an Altera EPM7128S which is in-situ programmable. ​ Current firmware allocate I/O locations 0xE8 to first two digits; location 0xE9 to the middle two digits, and location 0xEA to last 2 digits.
 +
 +===== Design Information =====
 +
 +{{:​builderpages:​plasmo:​cpldtil:​cpldtil_r2_scm.pdf|Schematic}}
 +
 +PC board {{:​builderpages:​plasmo:​cpldtil:​cpldtil_r2.zip|photoplots}}
 +
 +{{:​builderpages:​plasmo:​cpldtil:​cpldtil_cpld_release_11_6_19.zip|CPLD equations}}
  
  
builderpages/plasmo/cpldtil.txt · Last modified: 2019/11/06 07:47 by plasmo
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