Forum Discussion

CBlow's avatar
CBlow
Icon for Occasional Contributor rankOccasional Contributor
5 years ago
Solved

JAM/JBC file size increase from Quartus 16 to 20

Hello, A 10M04SCE144I7N design compiled in Quartus 16.1 generates JAM and JBC files that are 178KB and 357KB respectively. When the same design is compiled in Quartus 20.1, the JAM and JBC files ...
  • JohnT_Altera's avatar
    JohnT_Altera
    5 years ago

    Hi,


    You will need to use the command below to include the real-time ISP.


    quartus_cpf -c <name>.pof <name>.jam -o background_programming=on


JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Thanks for providing me the file. In order to have smaller size, you need to enable the Real-Time ISP. In Quartus 16.1, it is automatically enable which cause the size to be smaller than 20.1.


The reason that the size is bigger when real-time ISP is not enabled is because that it will include programming the Max 10 before updating the flash while when you are using real-time ISP features, it is will directly programmed the flash without the need to program the Max 10 device.


CBlow's avatar
CBlow
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

John,

Thanks for the reply. I was able to create a smaller JAM file with the 20.1 programmer with the real-time ISP box checked.

The goal is to make this scripted with command lines. With the real-time ISP box checked, I saved the 20.1 CDF and then ran this from the command line

quartus_cpf -c v20_chain.cdf test20.jam

The test20.jam is still large. The real-time ISP information was not included in the CDF when running command line.

I was unable to find the parameter to make this work. how do I save the smaller JAM file from the command line?