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vondart
New Contributor
New ContributorCyclone IV E implementing SPI
I'm using EP4CE10 as a SPI Master to control LMX2820, then find the control words are not written correctly. Does the I/O pin selection and configuration has special requirement?
Hi,
Regarding the Pin Out, for your device is:
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/cyclone-iv/ep4ce10.pdf
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/cyclone-iv
We do not have any example on SPI for Cyclone IV.
Maybe you could check these out, see if it helps:
https://forum.digikey.com/t/spi-3-wire-master-vhdl/12743
vondartNew Contributor
New ContributorI've tried several spi_master code base, but none was able to program lmx2820 registers correctly. None of them give desired result. After reading register content back with official software TICS Pro, some registers show separate content other than written in. One example code repl https://github.com/halftop/Interface-Protocol-in-Verilog.git.
