diff options
Diffstat (limited to 'firmware/notes')
| -rw-r--r-- | firmware/notes | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/firmware/notes b/firmware/notes new file mode 100644 index 0000000..3795e63 --- /dev/null +++ b/firmware/notes @@ -0,0 +1,9 @@ +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_GS,HIGH = 12.4 - 12.4 * (100 / (100 + 10)) = 1.13 V + +Default stdio driver flushes after newline. May sleep for 50ms +when the tx fifo is full, but generally unbuffered. |