
FAA20 Embedded NEXCOM Vocoder
Board Manual
This manual has been prepared for the Federal Aviation Administration.
FA100-00107 (March 2004) – Rev 1.0.0 Page 80
8.3.15 FLASH
The FLASH command accesses the three parameters that are stored in the
protected flash boot block: the serial number, the analog receive calibration
value, and the analog transmit calibration value. These parameters are
configured at the factory and cannot be changed without a JTAG
programming cable.
Table 26: FLASH Command Syntax
ATTRIBUTE DESCRIPTION
SYNTAX FLASH [fparam | [data]]
fparam Protected Flash Parameters
SN = FAA20 Serial Number
CALRX = Receive Audio Interface Calibration Value
CALTX = Transmit Audio Interface Calibration Value
PARAMETERS
data Data to write. The SN data is entered as a decimal value.
The CALRX/CALTX data is entered as a Q3.12 format
hexadecimal value.
FLASH NO
EXAMPLES Print protected flash parameters.
COM1: flash
> FLASH SN = 601
> FLASH CALRX = 1887
> FLASH CALTX = 0D39
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