[dpi, verilator]: Upgrade SPI DPI implementation#28803
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rivos-eblot wants to merge 1 commit intolowRISC:masterfrom
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[dpi, verilator]: Upgrade SPI DPI implementation#28803rivos-eblot wants to merge 1 commit intolowRISC:masterfrom
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* use a new protocol, incompatible with the legacy implementation * the new protocol is much simpler and exposes existing SPI DPI device signals: * host-to-device: SCK, SDI, CS * device-to-host: SDO, SDO_EN * there is no longer a limitation (32 bits) on transaction size * use an ASCII protocol to ease debugging (no overhead) * use environment variable to select whether to generate log files, and their kind: * `M` for "monitor" file, which are very verbose * `P` for "protocol" file, more compact to trace communication with SPI host * tested with JEDEC_ID, SFDP, PAGE_PROGRAM, READ, and HW config commands. Signed-off-by: Emmanuel Blot <[email protected]>
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Mfor "monitor" file, which are very verbosePfor "protocol" file, more compact to trace communication with SPI host