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https://github.com/DCC-EX/CommandStation-EX.git
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more explanations to motor driver definitions and more conservative max current limit
This commit is contained in:
Harald Barth
parent
a9ce9101e6
commit
3c706926c5
@ -39,37 +39,52 @@
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#define UNUSED_PIN 127 // inside int8_t
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#endif
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// The MotorDriver definition is:
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//
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// MotorDriver(byte power_pin, byte signal_pin, byte signal_pin2, int8_t brake_pin, byte current_pin,
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// float senseFactor, unsigned int tripMilliamps, byte faultPin);
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//
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// If the brakePin is negative that means the sense
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// power_pin: Turns the board on/off. Often called ENABLE or PWM on the shield
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// signal_pin: Where the DCC signal goes in. Often called DIR on the shield
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// signal_pin2: Inverse of signal_pin. A few shields need this as well, can be replace by hardware inverter
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// brake_pin: When tuned on, brake is set - output shortened (*)
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// current_pin: Current sense voltage pin from shield to ADC
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// senseFactor: Relation between volts on current_pin and actual output current
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// tripMilliamps: Short circuit trip limit in milliampere, max 32767 (32.767A)
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// faultPin: Some shields have a pin to to report a fault condition to the uCPU. High when fault occurs
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//
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// (*) If the brake_pin is negative that means the sense
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// of the brake pin on the motor bridge is inverted
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// (HIGH == release brake)
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//
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// Arduino standard Motor Shield
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#if defined(ARDUINO_ARCH_SAMD)
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// PMA - Setup for SAMD21 Sparkfun DEV board
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// senseFactor for 3.3v systems is 1.95 as calculated when using 10-bit A/D samples,
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// and for 12-bit samples it's more like 0.488, but we probably need to tweak both these
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#define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 1.95, 2000, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 1.95, 2000, UNUSED_PIN)
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#elif defined(ARDUINO_ARCH_ESP32)
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#define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(25/* 3*/, 19/*12*/, UNUSED_PIN, 13/*9*/, 36/*A4*/, 0.57, 2000, UNUSED_PIN), \
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new MotorDriver(23/*11*/, 18/*13*/, UNUSED_PIN, 12/*8*/, 39/*A5*/, 0.57, 2000, UNUSED_PIN)
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#else
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#define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 2.99, 2000, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 2.99, 2000, UNUSED_PIN)
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#endif
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// Setup for SAMD21 Sparkfun DEV board using Arduino standard Motor Shield R3 (MUST be R3 for 3v3 compatibility!!)
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// senseFactor for 3.3v systems is 1.95 as calculated when using 10-bit A/D samples,
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// and for 12-bit samples it's more like 0.488, but we probably need to tweak both these
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#define SAMD_STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 1.95, 2000, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 1.95, 2000, UNUSED_PIN)
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// Arduino STANDARD Motor Shield, used on different architectures:
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#if defined(ARDUINO_ARCH_SAMD)
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// Setup for SAMD21 Sparkfun DEV board using Arduino standard Motor Shield R3 (MUST be R3
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// for 3v3 compatibility!!) senseFactor for 3.3v systems is 1.95 as calculated when using
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// 10-bit A/D samples, and for 12-bit samples it's more like 0.488, but we probably need
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// to tweak both these
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#define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 1.95, 1500, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 1.95, 1500, UNUSED_PIN)
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#define SAMD_STANDARD_MOTOR_SHIELD STANDARD_MOTOR_SHIELD
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#elif defined(ARDUINO_ARCH_ESP32)
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// STANDARD shield on an ESPDUINO-32 (ESP32 in Uno form factor). The shield must be eiter the
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// 3.3V compatible R3 version or it has to be modified to not supply more than 3.3V to the
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// analog inputs. Here we use analog inputs A4 and A5 as A0 and A1 are wired in a way so that
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// they are not useable at the same time as WiFi (what a bummer). The numbers below are the
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// actual GPIO numbers. In comments the numbers the pins have on an Uno.
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#define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(25/* 3*/, 19/*12*/, UNUSED_PIN, 13/*9*/, 36/*A4*/, 0.70, 1500, UNUSED_PIN), \
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new MotorDriver(23/*11*/, 18/*13*/, UNUSED_PIN, 12/*8*/, 39/*A5*/, 0.70, 1500, UNUSED_PIN)
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#else
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// STANDARD shield on any Arduino Uno or Mega compatible with the original specification.
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#define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"), \
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new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 2.99, 1500, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 2.99, 1500, UNUSED_PIN)
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#endif
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// Pololu Motor Shield
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#define POLOLU_MOTOR_SHIELD F("POLOLU_MOTOR_SHIELD"), \
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@ -87,9 +102,13 @@
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// See Pololu dial_mc33926_shield_schematic.pdf and truth table on page 17 of the MC33926 data sheet.
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// Pololu Dual TB9051FTG Motor Shield
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// This is the shield without modifications which means
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// no HA waveform and no RailCom on an Arduino Mega 2560
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#define POLOLU_TB9051FTG F("POLOLU_TB9051FTG"), \
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// This is the shield without modifications. Unfortunately the TB9051FTG driver chip on
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// the shield makes short delays when direction is switched. That means that the chip
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// can NOT provide a standard conformant DCC signal independent how hard we try. If your
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// Decoders tolerate that signal, use it by all mean but it is not recommended. Without
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// modifications it uses the following pins below which means no HA waveform and no
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// RailCom on an Arduino Mega 2560 but the DCC signal is broken anyway.
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#define POLOLU_TB9051FTG F("POLOLU_TB9051FTG"), \
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new MotorDriver(2, 7, UNUSED_PIN, -9, A0, 10, 2500, 6), \
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new MotorDriver(4, 8, UNUSED_PIN, -10, A1, 10, 2500, 12)
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@ -105,17 +124,17 @@
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// FunduMoto Motor Shield
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#define FUNDUMOTO_SHIELD F("FUNDUMOTO_SHIELD"), \
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new MotorDriver(10, 12, UNUSED_PIN, 9, A0, 2.99, 2000, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 2000, UNUSED_PIN)
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new MotorDriver(10, 12, UNUSED_PIN, 9, A0, 2.99, 1500, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 1500, UNUSED_PIN)
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// IBT_2 Motor Board for Main and Arduino Motor Shield for Prog
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#define IBT_2_WITH_ARDUINO F("IBT_2_WITH_ARDUINO_SHIELD"), \
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new MotorDriver(4, 5, 6, UNUSED_PIN, A5, 41.54, 5000, UNUSED_PIN), \
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new MotorDriver(11, 13, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 2000, UNUSED_PIN)
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new MotorDriver(11, 13, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 1500, UNUSED_PIN)
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// YFROBOT Motor Shield (V3.1)
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#define YFROBOT_MOTOR_SHIELD F("YFROBOT_MOTOR_SHIELD"), \
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new MotorDriver(5, 4, UNUSED_PIN, UNUSED_PIN, A0, 2.99, 2000, UNUSED_PIN), \
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new MotorDriver(6, 7, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 2000, UNUSED_PIN)
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new MotorDriver(5, 4, UNUSED_PIN, UNUSED_PIN, A0, 2.99, 1500, UNUSED_PIN), \
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new MotorDriver(6, 7, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 1500, UNUSED_PIN)
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// Makeblock ORION UNO like sized board with integrated motor driver
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// This is like an Uno with H-bridge and RJ12 contacts instead of pin rows.
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@ -132,7 +151,7 @@
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// to an NANO EVERY board. You have to make the connectons from the shield to the board
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// as in this example or adjust the values yourself.
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#define NANOEVERY_EXAMPLE F("NANOEVERY_EXAMPLE"), \
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new MotorDriver(5, 6, UNUSED_PIN, UNUSED_PIN, A0, 2.99, 2000, UNUSED_PIN),\
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new MotorDriver(9, 10, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 2000, UNUSED_PIN)
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new MotorDriver(5, 6, UNUSED_PIN, UNUSED_PIN, A0, 2.99, 1500, UNUSED_PIN),\
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new MotorDriver(9, 10, UNUSED_PIN, UNUSED_PIN, A1, 2.99, 1500, UNUSED_PIN)
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#endif
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