Nonpareil status

[teenix]

I was just going over old notes and matching up the HP code flow with scope traces and the following seems logical, but not 100%

Code:



crc 560                 Function: Is card inserted?
                        Yes, s3 = 1
Prep code
CRC 1700                Function: Flush Out Buffer ???
                        no s3 test
CRC 260                 Motor ON 
CRC 100                 Function: Reset Logic ???
                        no s3 test

45 instruction loop     14mS delay
CRC 100                 Function: Flag next CRC100 waits for HDS ???
                                  Flag next CRC1700 tests for WPS ???
                                  no s3 test
CRC 100                 loop and wait for HDS to close
                        when closed, s3 = 1
CRC 1700                if write protected, s3 = 1

37 instruction loop     12mS delay
CRC 100                 Function: Set Start bit on WA WB
                                  Set CRC100 CRC1700 to write mode
                                  no s3 test
80 instruction loop     25mS delay
CRC 1700                Function: Flush Out Buffer ???
                        no s3 test

84 instruction loop     25mS delay
start writing status data checksum

cheers

Tony