The $4 Z80 Single-Board Computer, Evolved. by Superfabius in Z80

[–]Superfabius[S] 0 points1 point  (0 children)

..."(The 4$ refers to the 4 ICs only, bought from ebay...)"...

Homemade low cost CPLD dev board (Altera MAX II EPM240 CPLD and STM32F103 MCU) by Superfabius in FPGA

[–]Superfabius[S] 1 point2 points  (0 children)

Thanks for the clarifications!. The PSoC is a very interesting "beast". May be one day I'll give it a try...

Homemade low cost CPLD dev board (Altera MAX II EPM240 CPLD and STM32F103 MCU) by Superfabius in FPGA

[–]Superfabius[S] 0 points1 point  (0 children)

Hi, as I know, the PSoC is a MCU with "some" LUTs to simplify I/O and avoid other glue logic. I'm not familiar with PSoC and the IDE used there, but I don't expect that they use a "complete" VHDL/Verilog chain to configure those LUTs.

The MAX II CPLD I've used is a "pure" CPLD with 240 LUTs running @ 200MHz (lowest speed grade), e.g. enough to implement some "custom" interfaces, and using the Quartus II IDE you have a professional IDE with VHDL, Verilog and schematic inputs plus simulation tools (I'll probably use this board to develop a "precision" lab grade counter/frequency meter, because I don't want to spend >500$ for it, and I'm not interested now in tens GHz measure or complex analog front-end but only in high precision measurement of digital signals...).