Hardware Drivers (Bottom Level Code)

[jillianmalherbe]

Motivation ⛰️

There are several electrical components aboard the OBC Daughterboard which the Raspberry Pi 4 needs to be able to interface with. These include:

• Real Time Clock
• Temperature Sensor
• Micro SD Card Connector
• Current Monitor
• Voltage Monitor

Next Steps 🚶

• [ ] Read the datasheets associated which each of the components listed to figure out what communication protocol is needed to interface with each.
• [ ] Research examples online of people using Raspberry Pi's to to interface with similar components.
• [ ] Write drivers to interface with each of the components listed. The Micro SD Card Connector Driver in particular will be interesting because we will also be sending data to this component to be saved. (Again, there should be numerous examples online to help with this)
• [ ] Once we get the daughterboard PCB ordered and assembled, the next step would be to start integrating software with our custom hardware. This is when the driver's will be tested and any bugs can be eliminated.

Supporting Material and Resources 📖

• OBC Design Document
• Datasheets for components used in each of these circuits can be found in the team's BOM.

Definition of Done 💯

Driver's which allow the Raspberry Pi to interface with the OBC's custom circuits can be found in the obc-Rpi-software repository. These functions have been thoroughly tested using the team's custom hardware. All requirements listed in the Design Document have been satisfied.

Tags

cc: @SeanTedesco @emmapaczkowski @jillianmalherbe

[HarrisonMKG]

First we need to identify the exact pieces of hardware for each device in order to figure out which datasheet to pull information from. After we should also do a bit of digging to see if there are already libraries out there that can help us interface with the specific hardware we wish to use in order to ensure we are not wasting time creating an already developed interface.