Change FINDA from ADC to digital

Fix rebase issues

src/config/config.h

@@ -2,6 +2,10 @@
 #include <stdint.h>
 #include "axis.h"
 
+/// Define Debug mode to add additional serial output
+
+//#define DEBUG_FINDA
+
 /// Wrangler for assorted compile-time configuration and constants.
 namespace config {
 

src/main.cpp

@@ -171,6 +171,15 @@ void ReportCommandAccepted(const mp::RequestMsg &rq, mp::ResponseMsgParamCodes s
 }
 
 void ReportFINDA(const mp::RequestMsg &rq) {
+    #ifdef DEBUG_FINDA
+        using namespace hal;
+        hu::usart1.puts("FINDA:");
+        if (hal::gpio::ReadPin(FINDA_PIN) == hal::gpio::Level::high) {
+            hu::usart1.puts(" TIRGGERED\n");
+        } else {
+            hu::usart1.puts(" NOT TRIGGERED\n");
+        }
+    #endif //DEBUG_FINDA
     uint8_t rsp[maxMsgLen];
     uint8_t len = protocol.EncodeResponseReadFINDA(rq, mf::finda.Pressed(), rsp);
     WriteToUSART(rsp, len);

src/modules/finda.cpp

@@ -1,6 +1,7 @@
 #include "finda.h"
-#include "../hal/adc.h"
 #include "timebase.h"
+#include "../hal/gpio.h"
+#include "../pins.h"
 
 namespace modules {
 namespace finda {
@@ -8,7 +9,8 @@ namespace finda {
 FINDA finda;
 
 void FINDA::Step() {
-    debounce::Debouncer::Step(mt::timebase.Millis(), hal::adc::ReadADC(config::findaADCIndex) > config::findaADCDecisionLevel);
+
+    debounce::Debouncer::Step(mt::timebase.Millis(), hal::gpio::ReadPin(FINDA_PIN) == hal::gpio::Level::high);
 }
 
 } // namespace finda

src/pins.h

@@ -25,3 +25,5 @@ static constexpr hal::gpio::GPIO_pin SELECTOR_STEP_PIN = { GPIOD, 4 };
 static constexpr hal::gpio::GPIO_pin IDLER_CS_PIN = { GPIOB, 7 };
 static constexpr hal::gpio::GPIO_pin IDLER_SG_PIN = { GPIOF, 0 };
 static constexpr hal::gpio::GPIO_pin IDLER_STEP_PIN = { GPIOD, 6 };
+
+static constexpr hal::gpio::GPIO_pin FINDA_PIN = { GPIOF, 6 };                  /// PF6     A1      ADC6/TDI