tools: verilate.py: add a SPI device bridge (QEMU / Verilator)
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Configuring the timeout is required when dealing with another emulation platform such as Verilator which is much slower than QEMU Signed-off-by: Emmanuel Blot <[email protected]>
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note: Running unit tests with Verilator led to better understand the behavior of the SPI device, see also lowRISC/opentitan#28806 |
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Signed-off-by: Emmanuel Blot <[email protected]>
…ommand variants Signed-off-by: Emmanuel Blot <[email protected]>
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AlexJones0
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Dec 2, 2025
Pick command opcode 0xE9 which seems to be never used in most SPI device command sets. Signed-off-by: Emmanuel Blot <[email protected]>
Move it to a dedicated class Signed-off-by: Emmanuel Blot <[email protected]>
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Note: I've added a reference to lowRISC/opentitan#28803 to |
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I have not carefully reviewed the exact details of the SPI protocol implementation, as I think they should be broadly correct if this is working locally. Thanks for adding the references and comments, they're helpful to understand what is going on.
Create a TCP server that supports the QEMU SPI device protocol. Converts QEMU-compliant SPI device protocol into a simplified version of Verilator SPI DPI, using the Verilator SPI PTY communication channel. Signed-off-by: Emmanuel Blot <[email protected]>
Signed-off-by: Emmanuel Blot <[email protected]>
Python 3.10 is the current oldest non-EOL'ed supported version. Signed-off-by: Emmanuel Blot <[email protected]>
Signed-off-by: Emmanuel Blot <[email protected]>
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Create a TCP server that supports the QEMU SPI device protocol.
Converts QEMU-compliant SPI device protocol into a simplified version of Verilator SPI DPI, using the Verilator SPI PTY communication channel.
Designed to work with the reworked/simplified Verilator SPI DPI protocol implemented in lowRISC/opentitan#28803