Getting started resources for MAX 7000

Question

Hi,I am starting to develop with CPLDs, and​ when looking for basic MAX 7000 circuits, I don't find anything on the net. Is there a sample basic circuit for integrating a MAX 7000A into a schematic? Showing which connections have to be made for it to work? Or is there a schematics of a simple development board that I could copy from?  I am using it in combinatorial mode without clock, with 3V3 inputs, and I would like to program it in-circuit using an ARM microcontroller that is part of the same circuit or external JTAG programmer connected via pin header. I am using altium 16.I will be using the 7032 or 7064 version with PLCC 1.27MM pitch package, as I am soldering the prototypes myself. Any link to beginners resources will be greatly appreciated. Especially to circuit design for integrating those CPLDs.Thanks and best regards,Chris (Germany)​​

ak6dn · Answer

Well, have you seen this:  https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ds/m7000a.pdf

anandraj_s_intel · Answer

Hi chris,Unfortunately, we not have any MAX 7000 dev kits anymore. We can find datasheets and pin-out tables from below link.https://www.intel.com/content/www/us/en/programmable/support/literature/lit-m7k.htmlYou can find other CPLD kit information from below linkhttps://www.intel.com/content/www/us/en/programmable/products/boards_and_kits/all-development-kits.htmlRegardsAnand

chess4 · Answer

Hi, thank you, there are no schematics in that document. Where can I find sample schematics with power supply and in circuit programmability, ideally by a microcontroller?

ak6dn · Answer

Well the datasheet has all the info you need. It lists the VCC and GND pins and the VCC power supply requirements (ie, 3.3V +/- 10%). Programming is via JTAG pins TCK, TMS, TDI, TDO which would connect to GPIO pins on a microcontroller and/or a connector for use with an Altera ByteBlaster programming adapter. All the other I/Os are 5V tolerant and connect to whatever devices you want. I don't know what else a schematic could show you?

chess4 · Answer

Then I guess it is easier than I thought… I am integrating it into a PCB without being able to test it on a breadboard first. Still, it is redundant to the 74xx logic I have on the board already, so it is not a catastrophy if it doesn’t work in the next PCB version.

If I’m using it for combinatorial mode, I don’t need an oscillator, right, and apart from the decoupling caps (0.1µF) I just need standard protection for IO and take care about fanout and current limits I guess.

Is there a way to have 5V output with 7000A? I am using 3V3 mostly but have WS2812b LEDs that need 5V for data. Until now I’m using a level shifter (74LS245).

Do I need to connect JTAG to an UART / SPI / I2C port of my µC (STM32) or will any GPIO ports do?

Thanks for your help

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Getting started resources for MAX 7000

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