DIRECT_MODE_OUTPUT in OneWire not working?

[DrOldies]

Using some of the OneWire Teensy3 code in my project, DIRECT_MODE_OUTPUT is not working. I'm using a Teensy 3.1 and OneWire from the Arduino 1.65 release, but the DIRECT_MODE_OUTPUT macro has not changed in quit a while. To test I extracted the macros into a simple sketch and tested against pinMode (pin, OUTPUT). Here is my test sketch. flag controls the 3 scenarios // 0 = digital write, 1 = OneWire w/DIRECT_MODE_OUTPUT, 2 = OneWire w/pinMode. Is it me or the macro?

/*
 * I extracted the Onewire code line for the Teensy3 and included them here. 
 * If pinMode OUTPUT is used in OneW, pin 13 lights the LED
 * DIRECT_MODE_OUTPUT the LED does not light
 */

#define flag 1      // 0 = digital write, 1 = OneWire w/DIRECT_MODE_OUTPUT, 2 = OneWire w/pinMode 
uint8_t pinA = 13;

//oneWire.h extracted to here
#define PIN_TO_BASEREG(pin)             (portOutputRegister(pin))
#define PIN_TO_BITMASK(pin)             (1)
#define IO_REG_TYPE uint8_t
#define IO_REG_ASM
#define DIRECT_READ(base, mask)         (*((base)+512))
#define DIRECT_MODE_INPUT(base, mask)   (*((base)+640) = 0)
#define DIRECT_MODE_OUTPUT(base, mask)  (*((base)+640) = 1)
#define DIRECT_WRITE_LOW(base, mask)    (*((base)+256) = 1)
#define DIRECT_WRITE_HIGH(base, mask)   (*((base)+128) = 1)

IO_REG_TYPE bitmask;
volatile IO_REG_TYPE *baseReg;
IO_REG_TYPE mask = bitmask;

void setup() {
    baseReg = PIN_TO_BASEREG(pinA);
    bitmask = PIN_TO_BITMASK(pinA);
}

void loop() {

  #if flag == 1
    DIRECT_MODE_OUTPUT(baseReg, bitmask);     //1
    OneW();
  #elif flag == 2
    pinMode (pinA,OUTPUT);  //2
    OneW();
  #else
    dig();
  #endif
  
}

void dig(void){
  pinMode (pinA,OUTPUT);
  digitalWrite(pinA,HIGH);
  delay(2);
  digitalWrite(pinA,LOW);
}

void OneW(void){
    DIRECT_WRITE_HIGH(baseReg, bitmask);
    delay(500);
    DIRECT_WRITE_LOW(baseReg, bitmask);
    delay(500);
}

 

[PaulStoffregen]

By default, pins on Teensy 3.1 are disabled. Those macros only work on pins after they've been configured. You can use pinMode() or you can write directly to the port config register.