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Data from a sensor must be copied in limited time to SDRAM. If I allow IRQs then I don't receive all the data from sensor. In this time any other master access on the SDRAM leads to loss of data.
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So in your case the IRQ issue would be present even if you didn't use TCM and mapped the code into sdram, sram or anything else. Right? I tried with irq disable and infact this is not my case.
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How do you create the tc_code section? The TCM section I'm using has the same name like the SOPC component (onchip_ram).
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That's what I did.
I still have the same problem: simple function in TCM works, complete function hangs.
- simple function: for loop which sums the first n integers, where n is the function parameter; 0x2C bytes code
- complete function: 0xbc bytes code; this function works perfectly if I map it into sdram
- tc_code : 8kbytes space
I will try now to progressively increase the size of the simple test function in order to find out if the problem is with code size or with function content
Cris
Honored Contributor
