mtm_computer: set DAC gain 2x

todbot · todbot · commit a20f1f940151 · 2026-03-25T09:17:18.000-07:00
diff --git a/ports/raspberrypi/boards/mtm_computer/board.c b/ports/raspberrypi/boards/mtm_computer/board.c
@@ -20,7 +20,7 @@ static mp_obj_t board_dac_factory(void) {
         &pin_GPIO18,   // clock (SCK)
         &pin_GPIO19,   // mosi (SDI)
         &pin_GPIO21,   // cs
-        1);            // gain 1x
+        2);            // gain 2x
     return MP_OBJ_FROM_PTR(dac);
 }
 MP_DEFINE_CONST_FUN_OBJ_0(board_dac_obj, board_dac_factory);

Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ static mp_obj_t board_dac_factory(void) {`
`20`	`20`	`&pin_GPIO18, // clock (SCK)`
`21`	`21`	`&pin_GPIO19, // mosi (SDI)`
`22`	`22`	`&pin_GPIO21, // cs`
`23`		`- 1); // gain 1x`
	`23`	`+ 2); // gain 2x`
`24`	`24`	`return MP_OBJ_FROM_PTR(dac);`
`25`	`25`	`}`
`26`	`26`	`MP_DEFINE_CONST_FUN_OBJ_0(board_dac_obj, board_dac_factory);`