Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

How to choose device : CPLD or FPGA ?

I want to implement a polynomial function to continuously process a digital temperature signal and output a variable based on such evaluation. What device to look out for ? CPLD or FPGA ?

How can I decide that this implementation would need this much LEs ?

Please help in this regard.

13 Replies

Show More
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    --- Quote Start ---

    I intend to use a fast ( bare ) thermocouple whose response time is 0.3 sec, such that the entire calculation wouldn't cross 0.5 seconds in giving output.

    --- Quote End ---

    At speed you also have other options than a CPLD or FPGA ...
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Well , I think of going ahead with MAX V CPLD having 570 LEs.

    Board cost is also very cheap.