CognitiveTPG B780 - Manual (Page 190)

Appendix C: Electronic Journal 178
A776 (B780) Programming Guide A776-PG00001 C 12/09
1F 0A C5 Return Journal Status
Returns one byte of status.
bit 0 = 0 >> Write to flash successful
bit 0 = 1 >> Write to flash fail
bit 1 = 0 >> RAM allocation for journal data successful
bit 1 = 1 >> RAM allocation for journal data fail
bit 2 = 0 >> Auto Journal Disabled
bit 2 = 1 >> Auto Journal Enabled
1F 0A C6 Return Journal Flash Size
Returns two 3-byte counts in hexadecimal notation, as n1 n2 n3 and m1 m2 m3.
Journal flash buffer total size = (n1 * 0x10000 + n2 * 0x100 + n3)
= (n1 * 65,536 + n2 * 256 + n3) decimal
Journal flash buffer used = (m1 * 0x10000 + m2 * 0x100 + m3)
= (m1 * 65,536 + m2 * 256 + m3) decimal
Journal flash buffer total size corresponds directly to this line on the diagnostics form:
Flash Journal Size : nnnn kbytes
Journal flash buffer used corresponds inversely to this line on the diagnostics form:
Journal Unused : mmmm kbytes
1F 0A C7 Write Journal RAM Data to Flash
Writes the journal data in RAM to Flash and marks it as a complete journal entry with two print commands: 0x0A
0x0A. Printer goes busy at the communication interface while the flash is being written. Application should not send
any further data or commands until printer goes not busy at the communication interface.