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Night Scan Chief
Revision 1
7-1
CHAPTER 7
SOFTWARE REVISIONS
7.1 INTRODUCTION
There are several circuit boards in the Chief system. Each has its own microcontroller with associated
software. A person may “query” the software revisions by simultaneously holding down both Remote
Control tilt buttons (up, down). The revision levels can then be viewed as they scroll across the
alphanumeric display. A typical display might be “1:4.3 2:4.2 3:4.2”. This would indicate that board 1
(the base board) has revision 4.3, board 2 (the RCP board) has revision 4.2, and board 3 (a Remote
Control board) has revision 4.2. To date, all software revisions are backward compatible, and require no
hardware changes.
Table 7-1. Software Revision Log
Board
Board
No.
Revision Comments
Compatibility
Issues
Base
1
4.3
Initial Release to production
None
RCP
2
4.2
Initial Release to production
None
HHRC
3
4.2
Initial Release to production
None
Base
1
4.4
Fix transceiver enable timing to prevent
intermittent power up timing problem
None
HHRC
3
4.4
Fix transceiver enable timing to prevent
intermittent power up timing problem
None
Base
1
4.5
Fix to SPI timing to prevent intermittent
analog input read failures
None