Differences

This shows you the differences between two versions of the page.

bongofish:penenabled [2016/05/12 14:27]
bernard
bongofish:penenabled [2018/01/13 20:30] (current)
bernard
Line 80: Line 80:
| 1  | +3.3vdc  |  | test point markings says +3vdc  -- mA never seen above ~25mA @3.3v | | 1  | +3.3vdc  |  | test point markings says +3vdc  -- mA never seen above ~25mA @3.3v |
| 2  | RXD      | Tablet -> Host | Serial data packets - runs at 19200 baud N-8-1 | | 2  | RXD      | Tablet -> Host | Serial data packets - runs at 19200 baud N-8-1 |
-| 3  | TXD      | Host <- Tablet | Serial data (commands & queries) |+| 3  | TXD      | Tablet <- Host | Serial data (commands & queries) |
| 4  | ?        |  | No clear output activity. When applying VCC: weird behavior (current draw goes down to 0mA then jumps to 46mA, sounds illegal/scary) | | 4  | ?        |  | No clear output activity. When applying VCC: weird behavior (current draw goes down to 0mA then jumps to 46mA, sounds illegal/scary) |
| 5  | ?        |  | No clear output activity. When applying VCC or Ground makes no behavior difference. Ugly signal on pin when applying VCC. | | 5  | ?        |  | No clear output activity. When applying VCC or Ground makes no behavior difference. Ugly signal on pin when applying VCC. |