From ed99cbe7d8643f88d548d90fc3428474e377eabf Mon Sep 17 00:00:00 2001
From: Rob French <scrape@sdf.org>
Date: Mon, 14 Mar 2022 07:30:27 -0500
Subject: [PATCH] Updated to whatever I was doing...

---
 ubitx_20/ubitx.h         |  5 ++++-
 ubitx_20/ubitx_keyer.cpp | 25 ++++++++++++++++++++-----
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/ubitx_20/ubitx.h b/ubitx_20/ubitx.h
index 6465aa4..2b7e677 100644
--- a/ubitx_20/ubitx.h
+++ b/ubitx_20/ubitx.h
@@ -214,7 +214,10 @@ extern byte I2C_LCD_SECOND_ADDRESS;     //only using Dual LCD Mode
 #define ENC_A         (A0)
 #define ENC_B         (A1)
 #define FBUTTON       (A2)
-#define PTT           (A3)
+#define PTT           (A3)  // 8?
+#define DIGITAL_KEY   (A3)  // 8?
+#define DIGITAL_DOT   (12)
+#define DIGITAL_DASH  (11)
 #define ANALOG_KEYER  (A6)
 #define ANALOG_SPARE  (A7)
 #define ANALOG_SMETER (A7)  //by KD8CEC
diff --git a/ubitx_20/ubitx_keyer.cpp b/ubitx_20/ubitx_keyer.cpp
index 9b52a37..9043746 100644
--- a/ubitx_20/ubitx_keyer.cpp
+++ b/ubitx_20/ubitx_keyer.cpp
@@ -20,6 +20,8 @@ extern unsigned long sideTone;
 extern int cwSpeed;
 extern volatile bool inTx;
 //extern volatile int ubitx_mode;
+extern char isUSB;
+extern char cwMode;
 
 extern volatile unsigned char keyerControl;
 extern volatile unsigned char keyerState;
@@ -54,6 +56,18 @@ extern bool txCAT;
 #define MODE_CWR  3
 #define ubitx_mode (cwMode == 0 ? (isUSB == 0) : ((cwMode == 1) + 2))
 
+/* KC4UPR:  Temporary holding ground for definitions etc that may need to get moved to other files. */
+//#define DIGITAL_PTT   (A3)
+//#define DIGITAL_DOT   (D11)
+//#define DIGITAL_DASH  (D12)
+
+/*
+    Arduino Pin   MC Pin    Interrupt   Mask
+    A3/D17        PC3       PCINT[11]   PCMSK1/bit 3
+    D11           PB3       PCINT[3]    PCMSK0/bit 3
+    D12           PB4       PCINT[4]    PCMSK0/bit 4
+ */
+
 /**
  * Starts transmitting the carrier with the sidetone
  * It assumes that we have called cwTxStart and not called cwTxStop
@@ -271,7 +285,13 @@ ISR(TIMER1_OVF_vect) {
 void Connect_Interrupts(void) {
     keyerControl = 0;
     cli();
+
+    PCMSK0 |- 0b00011000;     // turn on dot/dash pins PB3/PB4, physical D11/D12
+    PCMSK1 |= 0b00001000;     // turn on PTT and Handkey pin PC3, physical A3
+    PCICR  |= 0b00000011;     // turn on ports B and C
+
     TIMSK1 |= (1<<TOIE1);
+
     sei();
 }
 
@@ -334,8 +354,3 @@ void sendmsg(char *str) {
     delay(650);
     stopTx();
 }
-
-
-
-
-