New Contributor
New Contributor1. For the Errata - I removed suggestion from previous post since I wrongly decoded the 2007 date code. It is never a bad thing to double check the issues from errata, though.
2. For the binary I would suggest to try recompile the project since it is possible for adjustments in silicon production to affect timings of the FPGA and thus lead to some issues, for instance. Synthesiser should be able to fix this if it is indeed the case.
3. Do you test the boards through all the product temperature range? For 33% not working could be some margin effects like capacitance change with temperature and not related to the FPGA at all.
Still don't understand what do you mean by "FPGA does not work at all at 20-25C room temperature".
For me it appears as if what you really mean by this is "FPGA doesn't fulfil the function that it is supposed to". But it doesn't mean that it does not work at all - the FPGA itself might be configured (let's call it "firmware running"), PLL generating clocks, input data handling but it could be at some dead end of the algorithm due to wrong timings, for instance.
BR, Matt.
New Contributor1. OK
2. We will hire an external FPGA consultant which will recompile the project and perform the necessary simulation and design verification and testing at different temperatures.
3. No, unfortunetly we currently do not. So, as per now, we only know that 33% of these boards fails their function test at 20-25C room temperature. If we were to lower the temperature below room temperature, we would expect an even higher persentage. We Will look into the capacitor issue.
Sorry about the unclear langue. And yes, I really mean "The FPGA doesn't fulfil its function at room temperature (and below)".
