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src/fas_arch/test_probe.h

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+#ifndef TEST_PROBE_H
+#define TEST_PROBE_H
+// #define TEST_MODE
+//  test mode in rmt:
+//    code to investigate rmt module functioning
+
+// #define ESP32_TEST_PROBE
+// #define ESP32C3_TEST_PROBE
+
+// in rmt:
+//   TEST_PROBE_1  on startQueue and queue stop, with double toggle at
+//   startQueue TEST_PROBE_2  end interrupt, when rmt transmission hits buffer
+//   end TEST_PROBE_3  threshold interrupt, after first buffer half transmission
+//   is complete
+
+#ifdef ESP32_TEST_PROBE
+#define TEST_PROBE_1 18
+#define TEST_PROBE_2 5
+#define TEST_PROBE_3 4
+#endif
+
+#ifdef ESP32C3_TEST_PROBE
+#define TEST_PROBE_1 1
+#define TEST_PROBE_2 2
+#define TEST_PROBE_3 3
+#endif
+
+#ifdef TEST_PROBE_1
+#define PROBE_1(x) digitalWrite(TEST_PROBE_1, x)
+#define PROBE_1_TOGGLE           \
+  pinMode(TEST_PROBE_1, OUTPUT); \
+  digitalWrite(TEST_PROBE_1, digitalRead(TEST_PROBE_1) == HIGH ? LOW : HIGH)
+#else
+#define PROBE_1(x)
+#define PROBE_1_TOGGLE
+#endif
+#ifdef TEST_PROBE_2
+#define PROBE_2(x) digitalWrite(TEST_PROBE_2, x)
+#define PROBE_2_TOGGLE           \
+  pinMode(TEST_PROBE_2, OUTPUT); \
+  digitalWrite(TEST_PROBE_2, digitalRead(TEST_PROBE_2) == HIGH ? LOW : HIGH)
+#else
+#define PROBE_2(x)
+#define PROBE_2_TOGGLE
+#endif
+#ifdef TEST_PROBE_3
+#define PROBE_3(x) digitalWrite(TEST_PROBE_3, x)
+#define PROBE_3_TOGGLE           \
+  pinMode(TEST_PROBE_3, OUTPUT); \
+  digitalWrite(TEST_PROBE_3, digitalRead(TEST_PROBE_3) == HIGH ? LOW : HIGH)
+#else
+#define PROBE_3(x)
+#define PROBE_3_TOGGLE
+#endif
+
+#endif