GPS Enhancments - Githubissues

RobertK66 / obc_1769_core

Implements hardware abstractions and Layer2(3) modules for usage of the OBC hardware in cubesat projects

GNU General Public License v3.0

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GPS Enhancments #15

Open RobertK66 opened 2 years ago

RobertK66 commented 2 years ago

[ ] add support for PPS pin
[ ] add power on/off support (enable pin)
[ ] add basic PMTK command support (Tx UART conection)
- [ ] get module type&version
- [ ] choose NMEA packets to use and the period of transmission
- [ ] make automatic Standby/On cycles available to use
[ ] optional use of fix pin ?

RobertK66 commented 1 year ago

@kodsurf : Does the 'flight'-GPS have a PPS pin? This is a GPIO pin giving the exact timing of the communicated UTC timestamp. To have accuracy down to more then some 10/100 ms (which the NMEA msg take over the UART and UART buffers the received Chars and ...) you have to take the time from the msg and then 'wait' for the GPIO to make its transition (best by IRQ)....

RobertK66 commented 1 year ago

@WolfgangTreb , @AndyFHWN: any new info about 'Flight GPS' available (Type, techn. Spec, ....)?

AndyFHWN commented 1 year ago

The decision on GPS is coupled with ADCS, because we do not need an extra module if GPS is integrated in future ADCS. Sorry, most likely this will be delayed.

RobertK66 commented 1 year ago

No Prob, I only try to make the issue list some sort of 'complete', because for the first time in this project my head has a approximate idea what a 'final OBC-Core' Firmware could look like 😄

RobertK66 commented 1 year ago

And I use the 'question' tag now to indicate the ones we (OBC developer) have to wait for info....