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| author | Louis Burda <quent.burda@gmail.com> | 2024-11-09 00:56:31 +0100 |
|---|---|---|
| committer | Louis Burda <quent.burda@gmail.com> | 2024-11-09 00:56:31 +0100 |
| commit | 188b65034fa91ed692ef698602f005bece581272 (patch) | |
| tree | abbe81d033b1b085d8b0e15d3785ae06dba91233 /firmware/notes | |
| parent | c0f8b7f02f08653953fd200d0676cdbad2b01ebc (diff) | |
| download | desk-andon-188b65034fa91ed692ef698602f005bece581272.tar.gz desk-andon-188b65034fa91ed692ef698602f005bece581272.zip | |
Add test mode
Diffstat (limited to 'firmware/notes')
| -rw-r--r-- | firmware/notes | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/firmware/notes b/firmware/notes index 3795e63..1296a35 100644 --- a/firmware/notes +++ b/firmware/notes @@ -1,9 +1,13 @@ V_GS,LOW = V_DD - (V_DD - V_CC - V_TVS) * (R2 / (R1 + R2)) V_GS,HIGH = V_DD - V_DD * (R2 / (R1 + R2)) -V_DD = 0.6 * (1 + R1 / R2) = 0.6 * (1 + 100 / 5.1) = 12.4 -V_GS,LOW = 12.4 - (12.4 - 5 - 0.7) * (100 / (100 + 10)) = 0.6 V +V_TVS ~= 6.3 V + +V_DD = 0.6 * (1 + R1 / R2) = 0.6 * (1 + 100 / 5.1) = 12.4 V +V_GS,LOW = 12.4 - ((12.4 - V_TVS) * (100 / (100 + 10)) + V_TVS) = 0.55 V V_GS,HIGH = 12.4 - 12.4 * (100 / (100 + 10)) = 1.13 V +V_GS,TH = 0.6-0.7 + Default stdio driver flushes after newline. May sleep for 50ms when the tx fifo is full, but generally unbuffered. |