Merge pull request firmata#451 from jimsynz/add-teensy-40

Add support for Teensy 4.0.

Author: soundanalogous

Boards.h

@@ -536,6 +536,36 @@ writePort(port, value, bitmask):  Write an 8 bit port.
 #define PIN_TO_PWM(p)           PIN_TO_DIGITAL(p)
 #define PIN_TO_SERVO(p)         (p)
 
+// Teensy 4.0
+#elif defined(__IMXRT1062__)
+#define TOTAL_ANALOG_PINS       14
+#define TOTAL_PINS              40
+#define VERSION_BLINK_PIN       13
+#define PIN_SERIAL1_RX          0
+#define PIN_SERIAL1_TX          1
+#define PIN_SERIAL2_RX          7
+#define PIN_SERIAL2_TX          8
+#define PIN_SERIAL3_RX          15
+#define PIN_SERIAL3_TX          14
+#define PIN_SERIAL4_RX          16
+#define PIN_SERIAL4_TX          17
+#define PIN_SERIAL5_RX          21
+#define PIN_SERIAL5_TX          20
+#define PIN_SERIAL6_RX          25
+#define PIN_SERIAL6_TX          24
+#define PIN_SERIAL7_RX          28
+#define PIN_SERIAL7_TX          29
+#define IS_PIN_DIGITAL(p)       ((p) >= 0 && (p) < TOTAL_PINS)
+#define IS_PIN_ANALOG(p)        ((p) >= 14 && (p) <= 27)
+#define IS_PIN_PWM(p)           (((p) >= 0 && (p) <= 16) || ((p) >= 18 && (p) <= 19) || ((p) >= 22 && (p) <= 25) || ((p) >= 28 && (p) <= 29)|| ((p) >= 33 && (p) <= 39))
+#define IS_PIN_SERVO(p)         ((p) >= 0 && (p) < MAX_SERVOS)
+#define IS_PIN_I2C(p)           ((p) == 18 || (p) == 19)
+#define IS_PIN_SERIAL(p)        (((p) >= 0 && (p) <= 1) || ((p) >= 7 && (p) <= 8) || ((p) >= 14 && (p) <= 17) || ((p) >= 20 && (p) <= 21) || ((p) >= 24 && (p) <= 25) || ((p) >= 28 && (p) <= 29))
+#define PIN_TO_DIGITAL(p)       (p)
+#define PIN_TO_ANALOG(p)        ((p) - 14)
+#define PIN_TO_PWM(p)           (p)
+#define PIN_TO_SERVO(p)         (p)
+
 
 // Leonardo
 #elif defined(__AVR_ATmega32U4__)

utility/SerialFirmata.h

@@ -65,7 +65,7 @@
 #define HW_SERIAL4                  0x04
 #define HW_SERIAL5                  0x05
 #define HW_SERIAL6                  0x06
-// extensible up to 0x07
+#define HW_SERIAL7                  0x07
 
 #define SW_SERIAL0                  0x08
 #define SW_SERIAL1                  0x09
@@ -90,6 +90,8 @@
 #define RES_TX5                     0x0b
 #define RES_RX6                     0x0c
 #define RES_TX6                     0x0d
+#define RES_RX7                     0x0e
+#define RES_TX7                     0x0f
 
 // Serial command bytes
 #define SERIAL_CONFIG               0x10
@@ -142,6 +144,10 @@ namespace {
   #if defined(PIN_SERIAL6_RX)
     if (pin == PIN_SERIAL6_RX) return RES_RX6;
     if (pin == PIN_SERIAL6_TX) return RES_TX6;
+  #endif
+  #if defined(PIN_SERIAL7_RX)
+    if (pin == PIN_SERIAL7_RX) return RES_RX7;
+    if (pin == PIN_SERIAL7_TX) return RES_TX7;
   #endif
     return 0;
   }
@@ -192,6 +198,12 @@ namespace {
         pins.rx = PIN_SERIAL6_RX;
         pins.tx = PIN_SERIAL6_TX;
         break;
+  #endif
+  #if defined(PIN_SERIAL7_RX)
+      case HW_SERIAL7:
+        pins.rx = PIN_SERIAL7_RX;
+        pins.tx = PIN_SERIAL7_TX;
+        break;
   #endif
       default:
         pins.rx = 0;