Tait TP9100, Руководство по обслуживанию, Страница: 33 / 326

TP9100 Service Manual
Description 33
© Tait Electronics Limited May 2005
Software Start-Up
When the radio is turned on, the following processes are carried out on the
main board:
Note
This process describes the normal software start-up into normal
radio operation mode.
1. The FPGA image, which includes the RISC processor and the cus-
tom logic, is loaded from the serial flash to the FPGA.
2. The RISC processor executes the boot code, which carries out an
initialization and auto-calibration, and—in case of a fault—generates
an error code for radio display.
3. Normal radio operation starts with:
■
the RISC processor executing the radio application code,
including application software for the analog and/or digital modes
■
the DSP executing the DSP code for processing of digital signals
in analog and digital mode
■
the custom logic executing addition digital signal processing
Software Shutdown
On shutdown, the programming and calibration data is stored in the
database, and power is removed from the radio.
Important
On power loss, any changes made to the programming or
calibration data may be lost.
Programming and
Calibration Files
One of the servicing tasks is the downloading and uploading of
programming and calibration files to the database. For more information,
refer to
“Servicing Procedures” on page 127 and the online help of the
programming and calibration applications.
Software Upgrades
During servicing it may become necessary to upload software to a
replacement main board using the
Tools > Options > Download
command of
the programming application. For more information, refer to the online
help of the programming application and to the technical notes
accompanying the software files.