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In my calculation, an EPCS4 image (4 MBit) has a size of 512 kB. The *.pof or *.jic file, although using compression, will be filled up with 0xff up to the image size.
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How much time will it take to load the content of EPCS4 into FPGA if payload is only ~2Mbit and the rest is filled up with 0xff ?
The case is that EP4CGX22 is in "40 Mhz internal oscillator mode".
There are to possible versions:
1). 4,000,000 bits x 25 ns / 1 bit = 100 ms
2). ~2,000,000 bits x 25 ns / 1 bit = ~50 ms
25 ns = 1/40MHz.
Which one is correct?
P.S. How to calculate decompression time by EP4CGX22?
Honored Contributor
