TransCore 05716 Manuel D’Utilisation
General Software Information
5-5
Power Fail
The system maintains a power fail flag. The host transmits command #520 Display
Power Fail Bit to determine if a power down has occurred. This flag is cleared by both
command #63 Reset Reader and command #65 Reset Power Fail Bit.
Power Fail Bit to determine if a power down has occurred. This flag is cleared by both
command #63 Reset Reader and command #65 Reset Power Fail Bit.
Program Download
Program download stores the MPRR applications software into the reader’s flash
memory. Program download is used to install program upgrades, add features, and to
recover from corrupted program data.
memory. Program download is used to install program upgrades, add features, and to
recover from corrupted program data.
Note: Program download is a hosted process. Exercise caution so that you don’t inad-
vertently enter download mode.
vertently enter download mode.
Download Considerations
You should consider the following factors when performing program download:
•
The MPRR does not process tags while in download mode.
•
The MPRR does not accept any program data unless a successful erase of flash
memory has been performed before transmitting the data. Erasing the flash mem-
ory typically takes two seconds.
memory has been performed before transmitting the data. Erasing the flash mem-
ory typically takes two seconds.
•
Exiting from download mode re-executes startup. If the new software has been
loaded without errors, the MPRR comes up in data mode. If a flash checksum
error is detected, the MPRR reenters download mode and transmits a sign-on mes-
sage with a boot version of 0.00x and without a serial number.
loaded without errors, the MPRR comes up in data mode. If a flash checksum
error is detected, the MPRR reenters download mode and transmits a sign-on mes-
sage with a boot version of 0.00x and without a serial number.
Note: The MPRR uses default communications parameters when operating in down-
load mode
load mode
–
38400 baud, 8 data bits, 1 stop bit, no parity, basic protocol
–
and does
not echo commands.
Download Procedures
If TransCore releases a new version of the MPRR software or if the MPRR seems not
to be working properly, you may need to download the software to the MPRR. Con-
tact technical support or your TransCore MPRR sales representative.
to be working properly, you may need to download the software to the MPRR. Con-
tact technical support or your TransCore MPRR sales representative.
Startup
Upon startup, MPRR transmits a sign-on message or a boot ROM failure message.