Difference between revisions of "HackLab.TO Timing Reference A"
From Hackstrich
| Line 7: | Line 7: | ||
= GPS Module = | = GPS Module = | ||
| − | * Will take up | + | * Will take up 3 slots |
* Motorola OnCore UT timing receiver | * Motorola OnCore UT timing receiver | ||
* 7-segment LED displays for: | * 7-segment LED displays for: | ||
** UTC Time (6 digits, red) | ** UTC Time (6 digits, red) | ||
| − | ** | + | ** Status code (1 digit, red) |
| + | ** 4x Tracked SV PRN displays (2 digits each, green) | ||
* LEDs | * LEDs | ||
** Power (green) | ** Power (green) | ||
** Comms (white) | ** Comms (white) | ||
| − | ** | + | ** 1 PPS (white) |
| − | ** | + | ** OK (blue) |
| + | ** Wait (yellow) | ||
** Fault (red) | ** Fault (red) | ||
== GPS Module Status == | == GPS Module Status == | ||
| + | * 2014-03-06: Tested w/ new antenna connected right to the GPS module, works fine. Likely a board issue with the pass-through, which we can just not use. Next step is to finish the DISP board. | ||
* 2013-11: Received and assembled, GPS communication works but GPS never locks. Need to troubleshoot this further, could be a setup issue, bad GPS board, or an issue with the RF pass-through. | * 2013-11: Received and assembled, GPS communication works but GPS never locks. Need to troubleshoot this further, could be a setup issue, bad GPS board, or an issue with the RF pass-through. | ||
* 2013-10-14: Main board sent to OSH Park for prototype. Display board will be done later. | * 2013-10-14: Main board sent to OSH Park for prototype. Display board will be done later. | ||
| Line 26: | Line 29: | ||
* 2013-05-13: Chassis is here now and has no PSU, just line voltage going to the cards. Redesigned the module to have a main board (which has the AC/DC converter and most logic on it) and a display board (which has the LED driver and displays on it, and goes on the front panel). Main board is schematicized and 50% laid out now. | * 2013-05-13: Chassis is here now and has no PSU, just line voltage going to the cards. Redesigned the module to have a main board (which has the AC/DC converter and most logic on it) and a display board (which has the LED driver and displays on it, and goes on the front panel). Main board is schematicized and 50% laid out now. | ||
* 2013-Early: Designed the module to go on the back of the front panel. | * 2013-Early: Designed the module to go on the back of the front panel. | ||
| − | |||
[[Category:Current Projects]] | [[Category:Current Projects]] | ||
Revision as of 04:11, 7 March 2014
This is the main timing reference for HackLab.TO (and tick.hacklab.to).
Project Overview
- Built into an American Data 800-series chassis (3U, 10 modules each with line voltage on an edge connector + space for a connector to the back panel)
- Chassis came with 10 AD805 distribution amplifiers (1 BNC in, 1 daisychain out, 6 amplified outputs)
- Will replace as many as required with other timing-related modules, remaining ones will be used to distribute timing references around
GPS Module
- Will take up 3 slots
- Motorola OnCore UT timing receiver
- 7-segment LED displays for:
- UTC Time (6 digits, red)
- Status code (1 digit, red)
- 4x Tracked SV PRN displays (2 digits each, green)
- LEDs
- Power (green)
- Comms (white)
- 1 PPS (white)
- OK (blue)
- Wait (yellow)
- Fault (red)
GPS Module Status
- 2014-03-06: Tested w/ new antenna connected right to the GPS module, works fine. Likely a board issue with the pass-through, which we can just not use. Next step is to finish the DISP board.
- 2013-11: Received and assembled, GPS communication works but GPS never locks. Need to troubleshoot this further, could be a setup issue, bad GPS board, or an issue with the RF pass-through.
- 2013-10-14: Main board sent to OSH Park for prototype. Display board will be done later.
- 2013-05-16: Main board checklisted, ready for CAM. Display board schematicized, routed. Needs to have mechanical design done and be checklisted.
- 2013-05-15: Main board completely laid out, just needs checklist run.
- 2013-05-13: Chassis is here now and has no PSU, just line voltage going to the cards. Redesigned the module to have a main board (which has the AC/DC converter and most logic on it) and a display board (which has the LED driver and displays on it, and goes on the front panel). Main board is schematicized and 50% laid out now.
- 2013-Early: Designed the module to go on the back of the front panel.
