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Revision to Duet 2 Maestro Hardware Overview

Ian A-S

The main hardware features of the Duet 2 Maestro are listed below
-* Powerful 32 Bit Processor: [https://www.microchip.com/wwwproducts/en/ATSAM4S8C|SAM4S8C]: 120MHz ARM Cortex-M4 microcontroller, 1024Kb memory, 128Kb RAM and many peripherals.
+* Powerful 32 Bit Processor: [https://www.microchip.com/wwwproducts/en/ATSAM4S8C|SAM4S8C]: 120MHz ARM Cortex-M4 microcontroller, 512Kb memory, 128Kb RAM and many peripherals.
* Dedicated Ethernet module: Low level networking is handled by a separate module, this leaves the main processor free to do precise stepper pulse timing and implement other advanced features.
* Super quiet [https://www.trinamic.com/products/integrated-circuits/details/tmc2224-la/|TMC2224] stepper drivers: SPI controlled and capable of up to 256 microstepping with optional interpolation from any lower microstepping setting to x256.
* Beta support for the Duet3d Filament Monitor both [[Duet3dFilamentMonitor RotatingMagnetVersion|magnetic]] and [[Duet3dFilamentMonitor LaserVersion|laser]] versions.
+== Operating limits ==
+
+See [[The_Duet_family_of_motion_control_electronics|Duet comparison table]] to compare with other Duet models.
+
+{table
+|width=100%
+|format=40%
+|! Notes
+| Duet 2 Maestro discontinued June 2020
+|--
+|! Processor
+| ATSAM4S8C
+|--
+|! Processor features
+| 120MHz ARM Cortex M4, 512Kb flash, 128Kb RAM, DMA
+|--
+|! Networking
+| 10BaseT/100BaseTX Ethernet
+|--
+|! Support for attached Raspberry Pi or other Single Board Computer (SBC)
+| No
+|--
+|! Stepper drivers on-board
+| 5 x TMC2224
+|--
+|! Stepper driver features
+| Up to 1.6A peak current, microstep interpolation from any setting to x256, stealthChop2
+|--
+|! Stepper driver expansion
+| Up to 2 additional TMC2208 or TMC2224 stepper drivers
+|--
+|! External stepper driver support
+| None
+|--
+|! Heater outputs
+| Bed heater (up to 18A TBC), 2 x extruder heater (up to 6A each)
+|--
+|! Thermistor/PT1000 inputs
+| 4, optimised for 100K thermistors and PT1000 sensors
+|--
+|! PT100 and thermocouple daughter board support
+| 2 boards (4 channels) - second board available only if I2C expansion pins are not used
+|--
+|! Heater/thermistor expansion
+| None
+|--
+|! Endstop or filament monitor inputs
+| 5 on-board (STP pins are 30V-tolerant)
+|--
+|! Endstop status LEDs
+| No
+|--
+|! Z probe connector
+| 5-pin with IN/GND/MOD/3V3/5V pins (IN pin is 30V-tolerant)
+|--
+|! Fan outputs
+| 3 controlled fans, 1 always-on fan connector, voltage selectable between VIN, 5V or external supply in 2 banks
+|--
+|! Servo support
+| 1 servo output on board with 5V drive (shares the output with the Z probe MOD pin and the diagnostic LED)
+|--
+|! Input power voltage
+| 11V to 28V
+|--
+|! Power monitoring
+| VIN voltage
+|--
+|! LCD support
+| PanelDue colour touch screen, 12864 mono graphics display using ST7920 controller (5V signal levels)
+|--
+|! LED strip support
+| No
+|--
+|! Other expansion
+| 2 pins usable as analog inputs, GPIO, or UART; 2 pins usable as I2C or GPIO
+|--
+|! SD card interface speed
+| 15Mbytes/sec
+|--
+|! RepRapFirmware versions available
+| 2.0 series, 3.0 series
+}
+
== Wiring and pinout ==
* CPU family: Cortex M4
* Clock speed: 120 MHz
-* Flash space: 1024 kb
+* Flash space: 512 kb
* RAM size: 128 kb
* Operating voltage: 3.3 V

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