initial check in based on SVN revision 575

source/taps.h

@@ -0,0 +1,37 @@
+/*
+ * taps.h
+ *
+ *  Created on: Mar 16, 2023
+ *      Author: Keith.Lloyd
+ */
+
+#ifndef TAPS_H_
+#define TAPS_H_
+
+#define	LF_TAPS 	0
+#define	HF_TAPS		1
+
+#define	TAP_HF_ON1	0x00
+#define	TAP_HF_ON2	0x04
+
+#define	TAP1D	0x18
+#define	TAP2D	0x17
+#define	TAP3D	0x08
+#define	TAP4D	0x00
+
+#define TAPS_OFF_MASK 0b11100111
+#define	TAP1_LF_ON	0b00011000
+#define	TAP2_LF_ON	0b00010000
+#define	TAP3_LF_ON	0b00001000
+#define	TAP4_LF_ON	0b00000000
+
+#define	TAP102_HF_OFF 0b11111011
+#define	TAP102_HF_ON  0b00000100
+
+void Check_Taps(void);
+void Set_taps_LF(void); // D' Type Amplifier
+void Set_taps_HF(void);
+
+void Set_Taps(uint8_t Tap, uint8_t Xfmr);
+bool Hys_Taps(void);
+#endif /* TAPS_H_ */