Memory Upgrade

Idea: Go faster, More storage, adaptable size based on mission

Meant to be a test board already

Timelines might be missed harder adding this

Hardware

CON: Bigger on footprint

CON: special wiggly signals need good routing

CON: might not work

CON: More pins from STM (6 > 4)

• CMD

• CK

• D0, D,1, D2, D3

Compared to 4 for flash chip (CS, SCK, MISO, MOSI)

Pro: Don’t need to pay for big flash chip

CON: dont know g rating of sd card connector

CON: would have to reroute UART5 (conflict over special pin)

Software

PRO: Go faster (built in SDMMC controller) frees up main CPU for thinking

PRO: Frees up spi controller

PRO: Frees up general purpose DMAs

PRO: adapt flash size to mission

PRO: easy to get data off

CON: never done it before, could have implementation issues