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Feature #3856

Use SAMD21 instead of SAMD11

Added by laforge 3 months ago. Updated 27 days ago.

Status:
Resolved
Priority:
Normal
Assignee:
Target version:
Start date:
03/24/2019
Due date:
% Done:

100%


Description

The SAMD11 is a bit too constraining when it comes to computing the PLL parameters / register values for the Si5351C. Let's upgrade to a SAMD21 to get more flash + RAM.

History

#1 Updated by laforge 3 months ago

  • Target version set to hw-v2

#2 Updated by laforge 3 months ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 10

Likely candidate ATSAMD21E18A-MUT in QFN32

#3 Updated by laforge about 2 months ago

  • Status changed from In Progress to Stalled
  • Assignee changed from laforge to mschramm

I have an incomplete branch in laforge/wip branch, but won't have time to continue this at the moment. Asking mschramm to take over

#4 Updated by mschramm about 1 month ago

  • Status changed from Stalled to In Progress
  • % Done changed from 10 to 30

SAM D21E inserted, proper supply connections ongoing. UEXT UART is now different from the one on the debug header (UEXT on SERCOM1; 2.5mm jack and TagConnect UART on SERCOM3) - I think we must go on with a 4-layer-PCB, given the requested features #3858 and esp. #3857. #3905 only needs more PCB space and a header but must follow the other tasks, as the pins needed for #3857 have priority.

#5 Updated by mschramm 27 days ago

  • Status changed from In Progress to Resolved
  • % Done changed from 30 to 100

design of v2 done

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