diff options
Diffstat (limited to 'nuttx/configs/open1788/include/board.h')
| -rw-r--r-- | nuttx/configs/open1788/include/board.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/nuttx/configs/open1788/include/board.h b/nuttx/configs/open1788/include/board.h index 2283f93d2..641cc99fe 100644 --- a/nuttx/configs/open1788/include/board.h +++ b/nuttx/configs/open1788/include/board.h @@ -258,8 +258,10 @@ * OFF while sleeping */ /* Button definitions ***************************************************************/ -/* The Open1788 supports several buttons. All will read "1" when open and "0" - * when closed +/* The Open1788 supports several buttons. All must be pulled up by the Open1788. + * When closed, the pins will be pulled to ground. So the buttons will read "1" + * when open and "0" when closed. All except USER1 are capable of generating + * interrupts. * * USER1 -- Connected to P4[26] * USER2 -- Connected to P2[22] @@ -271,12 +273,13 @@ * JOY_B -- Connected to P2[26] * JOY_C -- Connected to P2[23] * JOY_D -- Connected to P2[19] - * JOY_CTR -- Connected to P0[14] + * JOY_CTR -- Connected to P0[14] (shared with SSP1 SSEL) * - * The switches are all connected to ground and should be pulled up and sensed - * with a value of '0' when closed. + * For the interrupting buttons, interrupts are generated on both edges (press and + * release). */ + #define BOARD_BUTTON_USER1 0 #define BOARD_BUTTON_USER2 1 #define BOARD_BUTTON_USER3 2 |