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34 lines
1.2 KiB
C++
34 lines
1.2 KiB
C++
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#include "configuration.h"
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#ifdef _VARIANT_HELTEC_WIRELESS_TRACKER
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#include "GPS.h"
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#include "GpioLogic.h"
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#include "graphics/TFTDisplay.h"
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// Heltec tracker specific init
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void lateInitVariant()
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{
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// LOG_DEBUG("Heltec tracker initVariant\n");
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#ifdef VEXT_ENABLE
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GpioPin *hwEnable = new GpioHwPin(VEXT_ENABLE);
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GpioVirtPin *virtGpsEnable = gps ? gps->enablePin : new GpioVirtPin();
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// On this board we are actually using the backlightEnable signal to already be controlling a physical enable to the
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// display controller. But we'd _ALSO_ like to have that signal drive a virtual GPIO. So nest it as needed.
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GpioVirtPin *virtScreenEnable = new GpioVirtPin();
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if (TFTDisplay::backlightEnable) {
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GpioPin *physScreenEnable = TFTDisplay::backlightEnable;
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GpioPin *splitter = new GpioSplitter(virtScreenEnable, physScreenEnable);
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TFTDisplay::backlightEnable = splitter;
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// Assume screen is initially powered
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splitter->set(true);
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}
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// If either the GPS or the screen is on, turn on the external power regulator
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new GpioBinaryTransformer(virtGpsEnable, virtScreenEnable, hwEnable, GpioBinaryTransformer::Or);
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#endif
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}
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#endif
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