Boot

• There will be two ways to boot into SprinterOS
  • Normal boot (booting from FLASH)
  • Serial boot (booting from UART) - more info on this coming soon

System Clock

• System clock will run at 100MHz when we are normally operating
  • to avoid over-drive mode in the power management, which will save us some work and leave the 216MHz stuff for later
• Other power management schemes will be designed when we get to that task later down the line

UART

• Set the GPIO pins as a AF Mode first
• Then run UART init function
  • This takes the GPIO pins (TX RX) we set up in AF mode and configures it as UART