Comtech EF Data SNM-1000 - Manual (Page 102)

SNM-1000 Node Control Modem Revision 3
Operation MN/SNM1000.IOM
3–60
The User port will display an error message for any errors that occur during the
programming sequence. Possible error message are listed in the following listing.
DAC FLASH WRITE FAILURE Failure in flash programming.
DAC FLASH ERASE FAILURE Failure in erasing a Flash sector.
DAC FLASH TIME OUT Flash part not responding with the correct
programming status.
DAC FLASH PROGRAMMING FAILURE An error was found in the upload data.
The download process can be terminated with a ‘CTRL C’.
3.7.13.3 PDREM Ram
To load a RAM-based version of a remote debugger, select menu option “F3” by entering
an ANSI F3.
3.7.13.4 Area1 Defaults
To cause the SNM-1000 to execute SNM-1000 code stored in FLASH AREA 1, select
menu option “F4” by entering an ANSI F4.
3.7.13.5 Area2 Defaults
To cause the SNM-1000 to execute SNM-1000 code stored in FLASH AREA 2, select
menu option “F5” by entering an ANSI F5.
3.7.13.6 Ram Test
To perform a write/read/compare operation on locations 70000H to 7FFFFH of
SNM-1000 DRAM with a 55AA pattern, select menu option “1”.
3.7.13.7 NOVRAM Cycle Power Test “2”
To test the SNM-1000 NOVRAM, perform the following steps.
1. Power up the SNM-1000.
2. Select menu option “2” (NOVRAM test). This test will fail due to the unknown
content of NOVRAM, and will store a pre-set pattern into NOVRAM.
3. Cycle the power and select menu option “2” again. If the test does not pass, the
SNM-1000 NOVRAM has failed.