Hardware build instructions

video-terminal/Display.h

@@ -33,6 +33,8 @@
     Custom ladders can be used by tweaking colorMinValue and colorMaxValue
 */
 
+#define COMPOSITE_VIDEO_PIN 25 // hardcoded, this pin has a HW DAC
+
 #include <ESP32Lib.h>
 #include <Ressources/Font6x8.h>
 #include <Ressources/CodePage437_8x8.h>
@@ -43,7 +45,7 @@
 #define FONT CodePage437_8x8
 
 //pin configuration for DAC
-const int outputPin = 25;
+const int outputPin = COMPOSITE_VIDEO_PIN;
 // A) B)
 CompositeGrayDAC videodisplay;
 // C) D)

video-terminal/video-terminal.ino

@@ -9,6 +9,15 @@
  * and modified by Peter Scargill.
  */
 
+#define SERIAL_KBD_BAUDRATE   4800 // hardcoded LK201 baud rate
+#define SERIAL_KBD_RX_PIN     16 // hardcoded in Serial2
+#define SERIAL_KBD_TX_PIN     17 // hardcoded in Serial2
+
+#define SERIAL_TTY_BAUDRATE   9600 // configurable, depends on the TTY
+#define SERIAL_TTY_CONFIG     SERIAL_8N1 // configurable, depends on the TTY
+#define SERIAL_TTY_RX_PIN     18 // configurable
+#define SERIAL_TTY_TX_PIN     19 // configurable
+
 #include <SPI.h>
 
 #include <Adafruit_GFX.h>
@@ -110,14 +119,12 @@ void setup() {
   Serial.println("Running!");
 
   // TTY host
-  SerialTty.begin(9600, SERIAL_8N1, 18, 19, false, 100);
+  SerialTty.begin(SERIAL_TTY_BAUDRATE, SERIAL_TTY_CONFIG, SERIAL_TTY_RX_PIN, SERIAL_TTY_TX_PIN, false, 100);
 
   // LK201 keyboard connected to pins 16 and 17
-  SerialKbd.begin(4800);
+  SerialKbd.begin(SERIAL_KBD_BAUDRATE);
   
   display.setup();
-  //uint16_t tftID = tft.readID();
-  //tft.begin(tftID);
 
   input_init();