fleg
/
OpenRTX
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix input acquisition bug on MD-3x0

This commit is contained in:
Niccolò Izzo 2021-02-01 18:51:21 +01:00
parent 88387ee00d
commit ceb109946e
1 changed files with 25 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
platform/drivers/keyboard/keyboard_MDx.c
View File

@ -64,11 +64,33 @@ keyboard_t kbd_getKeys()
old_pos = new_pos; old_pos = new_pos;
} }
/* /*
* First of all, configure the row lines as inputs. Since they are in common * The row lines are in common with the display, so we have to configure
* with the display, their configuration can have been screwed up by display * them as inputs before scanning. However, before configuring them as inputs,
* driver among two subsequent calls of this function. * we put them as outputs and force a low logical level in order to be sure
* that any residual charge on both the display controller's inputs and in
* the capacitors in parallel to the Dx lines is dissipated.
*/ */
gpio_setMode(LCD_D0, OUTPUT);
gpio_setMode(LCD_D1, OUTPUT);
gpio_setMode(LCD_D2, OUTPUT);
gpio_setMode(LCD_D3, OUTPUT);
gpio_setMode(LCD_D4, OUTPUT);
gpio_setMode(LCD_D5, OUTPUT);
gpio_setMode(LCD_D6, OUTPUT);
gpio_setMode(LCD_D7, OUTPUT);
gpio_clearPin(LCD_D0);
gpio_clearPin(LCD_D1);
gpio_clearPin(LCD_D2);
gpio_clearPin(LCD_D3);
gpio_clearPin(LCD_D4);
gpio_clearPin(LCD_D5);
gpio_clearPin(LCD_D6);
gpio_clearPin(LCD_D7);
gpio_setMode(LCD_D0, INPUT_PULL_DOWN); gpio_setMode(LCD_D0, INPUT_PULL_DOWN);
gpio_setMode(LCD_D1, INPUT_PULL_DOWN); gpio_setMode(LCD_D1, INPUT_PULL_DOWN);
gpio_setMode(LCD_D2, INPUT_PULL_DOWN); gpio_setMode(LCD_D2, INPUT_PULL_DOWN);