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= Protocol =
= Protocol =
The communication protocol for normal PXI commands is documented below. The size of cmd_buf is calculated from the cmd_hdr. With newer FIRM the total size for command header + buffer must be at most 0x40 bytes, otherwise Process9 will panic.
The communication protocol for normal PXI commands is documented below. The size of cmd_buf is calculated from the cmd_hdr. With newer FIRM the total size for command header + buffer must be at most 0x40 words, otherwise Process9 will panic.
Each pxi_id corresponds to a Process9 PXI [[PXI_Services|command-handler]] thread which handles the actual command processing. With newer FIRM the pxi_id must be in a certain range.
Each pxi_id corresponds to a Process9 PXI [[PXI_Services|command-handler]] thread which handles the actual command processing. With newer FIRM the pxi_id must be in a certain range.