AGFA Avantra 36/44 Service Manual page 91

Avantra 36/44 Service Manual
Next, the OCP is taken out of reset. SPI communication tests execute between the
DIAG and the OCP. If the tests are successful, the OCP firmware and loader revi-
sion levels appear on the control panel, and the DIAG tells the OCP to update the
progress bar.
A dial-out icon appears in the middle of the display. This icon displays only during
the time a manual dial-out can be performed, then it disappears. Pressing this icon
key forces the system to perform a manual dial-out to a specific remote diagnostic
center that has been previously programmed into the system.
The DIAG micro-controller core tests execute. The OCP updates the progress bar
as the tests pass.
The 3600 and 2400 dpi correction table checksums are computed and displayed.
The configuration register initializes, and the correction tables load into SRAM.
Next, the DSP micro-controller is taken out of reset. SPI communication tests exe-
cute between the DIAG and DSP. The DSP firmware revision appears on the OCP.
The DSP core tests are executed. The OCP updates the progress bar as the tests
pass.
Next, the DEC-K4 micro-controller is taken out of reset. SPI communication tests
execute between the DIAG and DEC-K4. The DEC firmware revision appears on
the OCP. The DEC core tests execute. The OCP updates the progress bar as the
tests pass.
The DIAG tells the DSP to turn on the spinner motor. After the spinner motor is up
to speed and the OCP progress bar updates, the DIAG switches to slave mode
operation and relinquishes the SPI bus mastership roll to the DEC-K4.
The DEC-K4 SPI register and DSP handshake tests execute next. The OCP updates
the progress bar as the tests pass. The DEC-K4 subsystem tests execute and
progress is reported to the OCP. Next the DSP coefficient tables load. Finally the
DEC-K4 switches to slave mode operation and relinquishes the SPI bus mastership
roll to the OCP. The boot sequence has now been completed, and the OCP appli-
cation firmware loads. Processing of remote APIS commands can now take place.
3-4 Diagnostics