Error trying to build SpeedTest.ino on Teensy 4.1 in Arduino 1.8.19: error: cannot convert 'volatile uint32_t* {aka volatile long unsigned int*}' to 'volatile unsigned char*' in initialization

[PaulMakesThings]

Description

When I try to build the speedTest.ino example I get the following error.

error: cannot convert 'volatile uint32_t* {aka volatile long unsigned int*}' to 'volatile unsigned char*' in initialization
#define portOutputRegister(pin) ((digital_pin_to_info_PGM[(pin)].reg + 0))**

More detail below.

Steps To Reproduce Problem

Install Arduino 1.8.19 and Teensyduino Version 1.56, on Windows 10 pro and attempt to build the SpeedTest.ino example under Teensy4.1>Encoder

Hardware & Software

Board
Teensy 4.1

Arduino IDE version
1.8.19

Teensyduino version (if using Teensy)
Version 1.56 for windows 7 and up (downloaded from teensyduino website today 3/22/2022)

Version info & package name (from Tools > Boards > Board Manager)
Teensy 4.1

Operating system & version
Windows 10 pro

Any other software or hardware?

Arduino Sketch

Using the included encoder>speedtest.ino

/* Encoder Library - SpeedTest - for measuring maximum Encoder speed
 * http://www.pjrc.com/teensy/td_libs_Encoder.html
 *
 * This example code is in the public domain.
 */


// This SpeedTest example provides a simple way to verify how much
// CPU time Encoder is consuming.  Connect a DC voltmeter to the
// output pin and measure the voltage while the encoder is stopped
// or running at a very slow speed.  Even though the pin is rapidly
// pulsing, a DC voltmeter will show the average voltage.  Due to
// software timing, it will read a number much less than a steady
// logic high, but this number will give you a baseline reading
// for output with minimal interrupt overhead.  Then increase the
// encoder speed.  The voltage will decrease as the processor spends
// more time in Encoder's interrupt routines counting the pulses
// and less time pulsing the output pin.  When the voltage is
// close to zero and will not decrease any farther, you have reached
// the absolute speed limit.  Or, if using a mechanical system where
// you reach a speed limit imposed by your motors or other hardware,
// the amount this voltage has decreased, compared to the baseline,
// should give you a good approximation of the portion of available
// CPU time Encoder is consuming at your maximum speed.

// Encoder requires low latency interrupt response.  Available CPU
// time does NOT necessarily prove or guarantee correct performance.
// If another library, like NewSoftSerial, is disabling interrupts
// for lengthy periods of time, Encoder can be prevented from
// properly counting the intput signals while interrupt are disabled.


// This optional setting causes Encoder to use more optimized code,
// but the downside is a conflict if any other part of your sketch
// or any other library you're using requires attachInterrupt().
// It must be defined before Encoder.h is included.
//#define ENCODER_OPTIMIZE_INTERRUPTS

#include <Encoder.h>
#include "pins_arduino.h"

// Change these two numbers to the pins connected to your encoder
// or shift register circuit which emulates a quadrature encoder
//  case 1: both pins are interrupts
//  case 2: only first pin used as interrupt
Encoder myEnc(5, 6);

// Connect a DC voltmeter to this pin.
const int outputPin = 12;

/* This simple circuit, using a Dual Flip-Flop chip, can emulate
   quadrature encoder signals.  The clock can come from a fancy
   function generator or a cheap 555 timer chip.  The clock
   frequency can be measured with another board running FreqCount
   http://www.pjrc.com/teensy/td_libs_FreqCount.html

                        +5V
                         |        Quadrature Encoder Signal Emulator
 Clock                   |
 Input o----*--------------------------      ---------------------------o Output1
            |            |14           |    |
            |     _______|_______      |    |     _______________ 
            |    |    CD4013     |     |    |    |    CD4013     |
            |  5 |               | 1   |    |  9 |               | 13
        ---------|  D         Q  |-----|----*----|  D         Q  |------o Output2
       |    |    |               |     |         |               |
       |    |  3 |               |     |      11 |               |
       |     ----|> Clk          |      ---------|> Clk          |
       |         |               |               |               |
       |       6 |               |             8 |               |
       |     ----|  S            |           ----|  S            |
       |    |    |               |          |    |               |
       |    |  4 |            _  | 2        | 10 |            _  | 12
       |    *----|  R         Q  |---       *----|  R         Q  |----
       |    |    |               |          |    |               |    |
       |    |    |_______________|          |    |_______________|    |
       |    |            |                  |                         |
       |    |            | 7                |                         |
       |    |            |                  |                         |
        --------------------------------------------------------------
            |            |                  |
            |            |                  |
          -----        -----              -----
           ---          ---                ---
            -            -                  -
*/


void setup() {
  pinMode(outputPin, OUTPUT);
}

#if defined(__AVR__) || defined(TEENSYDUINO)
#define REGTYPE unsigned char
#else
#define REGTYPE unsigned long
#endif

void loop() {
  volatile int count = 0;
  volatile REGTYPE *reg = portOutputRegister(digitalPinToPort(outputPin));
  REGTYPE mask = digitalPinToBitMask(outputPin);

  while (1) {
    myEnc.read();	// Read the encoder while interrupts are enabled.
    noInterrupts();
    *reg |= mask;	// Pulse the pin high, while interrupts are disabled.
    count = count + 1;
    *reg &= ~mask;
    interrupts();
  }
}

Errors or Incorrect Output

Arduino: 1.8.19 Hourly Build 2019/02/04 10:33 (Windows 10), TD: 1.56, Board: "Teensy 4.1, Serial, 600 MHz, Faster, US English"

In file included from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/core_pins.h:33:0,

                 from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/wiring.h:39,

                 from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/WProgram.h:45,

                 from C:\Users\name\AppData\Local\Temp\arduino_build_426018\pch\Arduino.h:6:

SpeedTest: In function 'void loop()':

C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/pins_arduino.h:149:75: error: cannot convert 'volatile uint32_t* {aka volatile long unsigned int*}' to 'volatile unsigned char*' in initialization

 #define portOutputRegister(pin)  ((digital_pin_to_info_PGM[(pin)].reg + 0))

                                                                           ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.ino:101:27: note: in expansion of macro 'portOutputRegister'

   volatile REGTYPE *reg = portOutputRegister(digitalPinToPort(outputPin));

                           ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.pde: At global scope:

SpeedTest:46: error: redefinition of 'Encoder myEnc'

 Encoder myEnc(5, 6);

              ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.ino:46:9: note: 'Encoder myEnc' previously declared here

 Encoder myEnc(5, 6);

         ^

SpeedTest:49: error: redefinition of 'const int outputPin'

 const int outputPin = 12;

           ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.ino:49:11: note: 'const int outputPin' previously defined here

 const int outputPin = 12;

           ^

SpeedTest: In function 'void setup()':

SpeedTest:89: error: redefinition of 'void setup()'

 void setup() {

      ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.ino:89:6: note: 'void setup()' previously defined here

 void setup() {

      ^

SpeedTest: In function 'void loop()':

SpeedTest:99: error: redefinition of 'void loop()'

 void loop() {

      ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.ino:99:6: note: 'void loop()' previously defined here

 void loop() {

      ^

In file included from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/core_pins.h:33:0,

                 from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/wiring.h:39,

                 from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/WProgram.h:45,

                 from C:\Users\name~1\AppData\Local\Temp\arduino_build_426018\pch\Arduino.h:6:

C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/pins_arduino.h:149:75: error: cannot convert 'volatile uint32_t* {aka volatile long unsigned int*}' to 'volatile unsigned char*' in initialization

 #define portOutputRegister(pin)  ((digital_pin_to_info_PGM[(pin)].reg + 0))

                                                                           ^

C:\Users\name~1\AppData\Local\Temp\arduino_modified_sketch_275677\SpeedTest.pde:101:27: note: in expansion of macro 'portOutputRegister'

   volatile REGTYPE *reg = portOutputRegister(digitalPinToPort(outputPin));

                           ^

redefinition of 'Encoder myEnc'



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