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make touch sensor edge based to avoid approving >1 transaction

cap_button_delay
Conor Patrick 2019-08-23 13:33:34 +08:00
rodzic 3b53537077
commit b3ac739a35
1 zmienionych plików z 24 dodań i 13 usunięć
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37
targets/stm32l432/src/device.c
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@ -60,6 +60,29 @@ static int is_touch_button_pressed()
int (*IS_BUTTON_PRESSED)() = is_physical_button_pressed;
static void edge_detect_touch_button()
{
static uint8_t last_touch = 0;
uint8_t current_touch = 0;
if (is_touch_button_pressed == IS_BUTTON_PRESSED)
{
current_touch = IS_BUTTON_PRESSED();
// 1 sample per 25 ms
if ((millis() - __last_button_bounce_time) > 25)
{
// Detect "touch / rising edge"
if (!last_touch && current_touch)
{
__last_button_press_time = millis();
}
__last_button_bounce_time = millis();
last_touch = current_touch;
}
}
}
void request_from_nfc(bool request_active) {
_RequestComeFromNFC = request_active;
}
@ -78,19 +101,7 @@ void TIM6_DAC_IRQHandler()
}
}
if (is_touch_button_pressed == IS_BUTTON_PRESSED)
{
if (IS_BUTTON_PRESSED())
{
// Only allow 1 press per 25 ms.
if ((millis() - __last_button_bounce_time) > 25)
{
__last_button_press_time = millis();
}
__last_button_bounce_time = millis();
}
}
edge_detect_touch_button();
#ifndef IS_BOOTLOADER
// NFC sending WTX if needs