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DISPLAY - Allow FC to boot normally if OLED display is not connected at

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boot.  FC can detect when the display is unplugged and recovers after
display I2C timeouts.
This commit is contained in:
Dominic Clifton 2015-04-18 20:13:16 +01:00
parent a5c2c70541
commit ebd5475a55
3 changed files with 32 additions and 14 deletions
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23
src/main/io/display.c
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@ -73,6 +73,7 @@ controlRateConfig_t *getControlRateConfig(uint8_t profileIndex);
#define PAGE_CYCLE_FREQUENCY (MILLISECONDS_IN_A_SECOND * 5)
static uint32_t nextDisplayUpdateAt = 0;
static bool displayPresent = false;
static rxConfig_t *rxConfig;
@ -136,7 +137,7 @@ typedef struct pageState_s {
static pageState_t pageState;
void resetDisplay(void) {
ug2864hsweg01InitI2C();
displayPresent = ug2864hsweg01InitI2C();
}
void LCDprint(uint8_t i) {
@ -211,11 +212,6 @@ void showTitle()
void handlePageChange(void)
{
// Some OLED displays do not respond on the first initialisation so refresh the display
// when the page changes in the hopes the hardware responds. This also allows the
// user to power off/on the display or connect it while powered.
resetDisplay();
i2c_OLED_clear_display_quick();
showTitle();
}
@ -533,9 +529,22 @@ void updateDisplay(void)
}
if (pageState.pageChanging) {
handlePageChange();
pageState.pageFlags &= ~PAGE_STATE_FLAG_FORCE_PAGE_CHANGE;
pageState.nextPageAt = now + PAGE_CYCLE_FREQUENCY;
// Some OLED displays do not respond on the first initialisation so refresh the display
// when the page changes in the hopes the hardware responds. This also allows the
// user to power off/on the display or connect it while powered.
resetDisplay();
if (!displayPresent) {
return;
}
handlePageChange();
}
if (!displayPresent) {
return;
}
switch(pageState.pageId) {