MattairTech MT-X1 User manual

MT-X1 Manual
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MT-X1 Manual
Table of Contents
Table of Contents
Overview........................................................................................................................3
Introduction.......................................................................................................................................3
MT-X1 Features................................................................................................................................3
ATxmega128a1 Features..................................................................................................................4
MT-X1 Hardware............................................................................................................6
Solder Jumpers.................................................................................................................................6
Headers / Pin Descriptions................................................................................................................7
Buttons / Jumper...............................................................................................................................8
Power / Status LEDs.........................................................................................................................9
Power Supply....................................................................................................................................9
Clock Sources / RTC.........................................................................................................................9
USB Serial Bridge...........................................................................................................................10
MicroSD Card..................................................................................................................................11
32KB SPI SRAM.............................................................................................................................11
Audio Amplifier................................................................................................................................11
1.25V Precision Reference..............................................................................................................11
Temperature Sensor.......................................................................................................................12
8-channel Lowside / Relay Driver....................................................................................................12
Windows Installation..................................................................................................13
Atmel Studio (AVR Studio) / AVRISP mkII driver.............................................................................13
WinAVR / AVRDUDE......................................................................................................................14
MT-X1 Driver / Serial Configuration.................................................................................................15
Terminal Emulator...........................................................................................................................15
Linux Installation........................................................................................................16
AVRISP mkII Compatible PDI Programmer..............................................................17
Using Atmel Studio (AVR Studio)....................................................................................................17
Using AVRDUDE............................................................................................................................21
Serial Bridge................................................................................................................22
Configuration..............................................................................................................24
XMEGA Demo Program..............................................................................................25
Firmware Updates.......................................................................................................26
Troubleshooting / FAQ...............................................................................................29
Support Information...................................................................................................29
Schematic....................................................................................................................30
Legal Notices...............................................................................................................31
Appendix A: Precautions...........................................................................................33
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MT-X1 Manual
Overview
Overview
Introduction
The MT-X1 is a flexible USB development board for the Atmel ATxmega128a1 microcontroller.
Included is a MicroSD card slot, 32KB SPI SRAM, audio amplifier, lowside / relay driver, temperature
sensor, 4 buttons, 4 LEDs, and an onboard 1.25V precision reference for the ADC. This reference is
setup to work with the XMEGA errata. The XMEGA can be programmed over USB using the onboard
AVRISP mkII compatible PDI programmer. The XMEGA can communicate with a computer using the
onboard USB to serial bridge. Speeds up to 2Mbps are supported in synchronous mode (1Mbps in
asynchronous mode). The Atmel AT90USB162 USB AVR, which provides these features, will
automatically sleep when USB is disconnected. The board can be powered via USB or an external
header. Voltage is regulated by a 3.3V, 1A LDO regulator. There are several clock options available
onboard, including a 32.768KHz crystal, an external clock, an external HC49 crystal landing, and
several internal clock options. Most XMEGA pins are routed to headers. The included peripheral
devices are connected to the XMEGA via solder jumpers, which allows use of the pins if the device is
not used. A demo program is preinstalled on the XMEGA demonstrating use of each peripheral
device, as well as demonstrating sleep mode. Additionally, an Atmel Studio 6 ASF template is
provided. All software used on both the XMEGA and USB AVR is open-source.
MT-X1 Features
●Atmel XMEGA 128A1 (chip rev. H), 128KB flash, 8KB RAM
●Onboard USB PDI programmer (no external programmer needed)
●AVRISPmkII compatible
●Program flash, EEPROM, fuses, lock bits, and more
●Works with AVR Studio 4 and 5, Atmel Studio 6, AVRDUDE, Codevision, and BASCOM
●USB - Serial Bridge
●Up to 2MHz baud rate (1MHz async)
●Synchronous or asynchronous operation
●Optional USB ready signal
●3.3V, 1A LDO regulator
●Powered via USB or external header
●32.768KHz crystal connected to TOSC (RTC) pins
●8MHz external clock available from USB AVR
●HC49 crystal landing connected to XTAL pins
●Most pins routed to headers (Port A through Port K)
●Solder jumpers can be used to disconnect devices when not used (frees up header pin)
●MicroSD card slot with push-push spring action
●32KB SPI SRAM chip
●8 channel lowside / relay driver with kickback protection
●Up to 70mA per channel
●5V or 3.3V devices (relays, LCD backlights, etc.)
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MT-X1 Manual
●Can be used as general-purpose lowside driver
●Audio amplifier connected to XMEGA DAC
●Temperature sensor with low-power operation
●1.25V precision voltage reference
●Works with XMEGA ADC errata
●Use for signed differential conversions from 0V to ~2.5V at the pin
●Routed to both reference inputs via solder jumpers
●4 buttons
●4 LEDs
●Available 1MB low power external SRAM (see http://www.mattairtech.com/)
●JTAG (XMEGA), PDI (XMEGA)*, and ISP (USB AVR) headers
●4 boot modes selectable via jumper and button
●Serial bridge (default)
●AVRISP mkII compatible PDI programmer
●Configuration (uses terminal emulator)
●DFU bootloader (to update firmware on USB AVR via USB)
●Boot button can be used to toggle between the PDI programmer and the serial bridge
●Entire board can consume down to 75uA or less in sleep mode
●Atmel Studio 6 ASF (Atmel Software Framework) template to get started quickly
●Preloaded demo program demonstrates onboard peripheral devices as well as sleep mode
●PCB measures 10cm x 5cm
●Compatible with Windows XP/Vista/7/8 and Linux
●All firmware is open-source (MIT license)
●Uses LUFA USB library and AVRISP mkII clone by Dean Camera
(http://www.fourwalledcubicle.com/)
ATxmega128a1 Features
●High-performance, Low-power 8/16-bit AVR®XMEGA Microcontroller
●Non-Volatile Program and Data Memories
128K Bytes of In-System Self-Programmable Flash
8K Bytes Boot Section with Independent Lock Bits
2 KB EEPROM
8 KB Internal SRAM
External Bus Interface for up to 16M bytes SRAM
External Bus Interface for up to 128M bit SDRAM
●Peripheral Features
Four-channel DMA Controller with support for external requests
Eight-channel Event System
Eight 16-bit Timer/Counters
4 Timer/Counters with 4 Output Compare or Input Capture
4 Timer/Counters with 2 Output Compare or Input Capture
High-Resolution Extension on all Timer/Counters
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MT-X1 Manual
Advanced Waveform Extension on two Timer/Counters
Eight USARTs
IrDA modulation/demodulation for one USART
Four 2-Wire Interfaces w/ dual address match (I2C and SMBus)
Four SPI (Serial Peripheral Interface) peripherals
AES and DES Crypto Engine
16-bit Real Time Counter with separate Oscillator
Two Eight-channel, 12-bit, 2 Msps Analog to Digital Converters
Two Two-channel, 12-bit, 1 Msps Digital to Analog Converters
Four Analog Comparators with Window compare function
External Interrupts on all General Purpose I/O pins
Watchdog Timer with Separate On-chip Ultra Low Power Oscillator
●Special Microcontroller Features
Power-on Reset and Programmable Brown-out Detection
Internal and External Clock Options with PLL and Prescaler
Programmable Multi-level Interrupt Controller
Sleep Modes: Idle, Power-down, Standby, Power-save, Ext. Stby.
Advanced Programming, Test and Debugging Interfaces
JTAG (IEEE 1149.1 Compliant)
PDI (Program and Debug Interface)
●I/O and Packages
78 Programmable I/O Lines
100 - lead TQFP
●Operating Voltage (MT-X1 operates at 3.3V)
1.6 - 3.6V
●Speed performance (MT-X1 can operate at 0-32MHz)
0 - 12 MHz @ 1.6 - 3.6V
0 - 32 MHz @ 2.7 – 3.6V
Bottom View
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MT-X1 Manual
MT-X1 Hardware
MT-X1 Hardware
Solder Jumpers
Jumper Description
J1 USB Shield to gnd (not connected by default)
J2 ~5V to relay driver (5V header pin and kickback diodes common cathode)
J3 DACA0 (pin A2) to amplifier audio input
J4 AREF B (pin B0) to 1.25V reference
J5 AREF A (pin A0) to 1.25V reference
J6 ADCA1 (pin A1) to temperature sensor output
J7 External clock input (pin R1) to CLKO from AT90USB162 (8 MHz)
J8 SPI D SS (pin D4) to SRAM chip select (external pullup)
J9 SPI D MOSI (pin D5) to SRAM SI (external pullup)
J10 SPI D SCK (pin D7) to SRAM clock input (external pullup)
J11 SPI D MISO (pin D6) to SRAM SO (external pulldown)
J12 Pin D0 to LED_1
J13 Pin D1 to LED_2
J14 Pin D2 to LED_3
J15 Pin D3 to LED_4
J16 SPI F SCK (pin F7) to relay driver clock input
J17 SPI F MOSI (pin F5) to relay driver SI input
J18 USART F0 RXD (pin F2) to AT90USB162 USART TX
J19 USART F0 TXD (pin F3) to AT90USB162 USART RX (shared with PDI_DATA)
J20 USART F0 XCK (pin F1) to AT90USB162 USART XCK (also USB ready signal)
J21 SPI E MISO (pin E6) to SD card SO (must enable XMEGA pullup)
J22 SPI E SCK (pin E7) to SD card clock input (external pullup)
J23 SPI E MOSI (pin E5) to SD card SI (external pullup)
J24 SPI E SS (pin E4) to SD card chip select (external pullup)
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MT-X1 Manual
Headers / Pin Descriptions
Pin Description
External Power Header Under the default configuration, 5V should be supplied to this pin. Lower
voltages may be used down to around 4V (or lower if using less current).
Voltages greater than 5.5V require J2 to be disconnected. Disconnecting J2
will disable the 5V output pin and inductive kickback protection of the relay
driver. But it will allow voltages up to ~7.5V. This header is reverse polarity
protected using a schottky diode.
3.3V output headers (x4) There are four 2-pin power output headers next to each port header group. The
header next to the analog ports (ports A and B) comes from the analog 3.3V rail.
Note that if these headers are installed, there will not be enough room to plug in
IDC connectors next to each other.
Relay Header 3.3V This can be used for the positive 3.3V side of a relay or other device.
Relay Header 5V This can be used for the positive 5V side of a relay or other device. This is also
the common cathode of the kickback diodes in the relay driver. Both of these are
disabled when J2 is diconnected.
Relay Header 1-8 These are the 8 relay driver outputs. They are open-drain active low. When
enabled, the output is connected to ground. When disabled, the pin is in a high
impedance state. When driving inductive loads, like relays, free-wheeling diodes
provide kickback protection (when J2 connected). Non-inductive loads can also
be connected (ie: LCD backlight). Each output is capable of sinking 70mA.
Outputs can be combined.
Audio Header This is the singe channel output from the audio amplifier. It can drive 8 ohm
loads. 4 ohm loads may also be connected, but under some conditions,
distortion or automatic thermal shutdown may occur.
JTAG Header JTAG header for the XMEGA which can be used for programming, debugging,
and JTAG boundary scans. Disable JTAG to gain access to the four underlying
analog/GPIO pins.
PDI Header PDI header for the XMEGA which can be used for programming or debugging.
Note that an onboard programmer is already provided. When using this header,
J19 MUST be disconnected. This is due to the fact that RX and PDI_DATA are
shared. This means that the XMEGA serial TX won't be connected to the USB
AVR RX. This doesn't affect programming, but may present a problem in certain
situations when debugging. If serial TX is required when debugging, the JTAG
header can be used. Alternatively, an external USB-serial bridge can be
connected.
ISP Header ISP header for the USB AVR which can be used for programming or debugging.
The USB AVR can be programmed over USB using the DFU bootloader.
Port A All pins are routed to headers. The 1.25V precision reference can be connected
to pin A0 (Vref input) through a solder jumper. The temperature sensor output
and audio amplifier input are also connected to this port.
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MT-X1 Manual
Port B All pins are routed to headers. The 1.25V precision reference can be connected
to pin B0 (Vref input) through a solder jumper. Note that JTAG is connected to
pins B4 – B7. JTAG must be disabled to use these pins for other purposes like
the ADC.
Port C All pins are routed to headers. No peripheral devices are connected to this port.
Port D All pins are routed to headers. This port also connects to the LEDs and 32KB
SPI SRAM memory through solder jumpers.
Port E All pins are routed to headers. This port also connects to the buttons and the
MicroSD card slot through solder jumpers.
Port F All pins are routed to headers. This port also connects to the USART of the USB
AVR (RX, TX, and optionally, XCK) as well as the SPI inputs of the relay driver
(MOSI and SCK) through solder jumpers. To minimize power consumption. TX
should be tristated before entering sleep.
Ports H, J, and K All pins are routed to headers. No peripheral devices are connected to these
ports. They can be used for GPIO or for use with external memory.
Pins Q0 and Q1 The 32.768KHz crystal is connected to these pins, which serve as the TOSC
input pins of the RTC.
Pins Q2 and Q3 Pin Q2 is routed to the chip select pin of the relay driver. Pin Q3 is routed to the
audio amplifier power-down pin. Neither pin is routed to a header.
Pins R0 and R1 Both of these pins are routed to an HC49 crystal footprint. A 22pF capacitor is
also connected to each line. Additionally, R1 can be connected to the USB AVR
8MHz clock output (CLKO) through solder jumper J7.
Buttons / Jumper
There are four modes of operation which are selected using the PROG button and JMP
jumper. The button and jumper are sampled when powering up or pressing reset. Additionally, the MT-
X1 can be switched between the AVRISP mkII programmer and the serial bridge during runtime by
pressing the PROG button. This is useful, for example, to program the XMEGA, then switch to the
serial bridge for printf() debugging. The reset button resets the USB AVR, which will in turn reset the
XMEGA when it boots. The following table lists the mode selection during power-up and reset.
Mode Selection During Power-up and Reset
PROG Button JMP Jumper Mode
Pressed Installed DFU Bootloader
Not Pressed Installed Configuration Mode
Pressed Not Installed AVRISP mkII PDI Programmer
Not Pressed Not Installed USB Serial Bridge
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MT-X1 Manual
Power / Status LEDs
There are two green LEDs that are used to indicate USB status, the mode of operation,
communication activity, programmer status, and more. The following table lists LED functionality in
each mode. Both LEDs are turned off in sleep mode.
LED Functionality
Mode STS LED PWR LED
AVRISP mkII Programmer Programmer Activity PWM pulsing
Configuration Mode On On
USB Serial Bridge RX Activity TX Activity
DFU Bootloader On Off
Power Supply
The MT-X1 can be powered via USB or via an external header. Both sources are connected to
the input of a 1A, 3.3V LDO linear regulator through Schottky diodes rated at 2A each (2A was chosen
also to keep the dropout voltage low throughout the range of current). The diodes provide reverse-
polarity protection as well as ensuring that current will not flow from one source to the other. For
example, if the external header has a greater voltage than the USB VBUS voltage, the diode prevents
VBUS from rising to the level of the external voltage. Note that there is a minimum load of 100uA
for this regulator. The MT-X1 can consume less than 75uA in the deepest sleep modes. Use an
external load resistor between 3.3V and Gnd to ensure that this requirement is met. A MicroSD card
inserted may consume enough to meet the specification without the resistor.
The 3.3V regulator has thermal protection and foldback current limiting. There is a 10uF
capacitor on both the input and output. Note that 10uF is the maximum allowed by the USB
specification. When using the external header, additional capacitance may be needed with higher
impedance voltage sources (ie: batteries, long cable runs). The regulator input can also be routed
through J2 to the header pin labeled 5V (near the relay driver). Voltages greater than 5.5V on the
external power input header require J2 to be disconnected, which will disable the relay driver kickback
protection.
Clock Sources / RTC
By default, a 32.768KHz crystal is installed and connected to the TOSC pins of the XMEGA
(R0 and R1). An HC49 crystal landing is available as well, with 22pF load capacitors preinstalled. An
external clock can also be connected to pin R1. There are several internal clock options as well. The
demo program makes use of the 32MHz internal RC oscillator. This oscillator is configured to be auto-
calibrated by a DFLL, which uses the 32.768KHz crystal as input. The crystal is also the source for the
RTC. A 2MHz RC oscillator and two different 32KHz oscillators are also available. A PLL and
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MT-X1 Manual
prescalers can be used to obtain the various clocks. Be aware that the ATxmega128a1 requires both
the 2MHz and 32MHz oscillators to be running and both DFLLs to be enabled for either DFLL to
operate due to errata. Atmel ASF (Atmel Software Framework) does not support this arrangement, but
the example code shows how to set this up. Also note that the DFLL calibrated oscillators will still not
be as accurate as an external high speed crystal. If using an external crystal, it must be 0.4MHz to
16MHz. The PLL can be used to obtain higher clock speeds.
Programming Headers
The PDI header has the standard 6-pin layout. Because an onboard programmer is provided,
an external programmer is not necessary. However, debugging requires use of an external debugger
connected to the PDI header or the JTAG header. Because the XMEGA TX pin (USB AVR RX/D pin)
is connected to the XMEGA PDI_DATA pin, the debugger cannot be used when using TX as this
would cause contention. However, solder jumper J19 can be disconnected to avoid contention, but TX
will then be disconnected from the USB module. TX will still available on the header pin, so you can
connect to an external serial bridge if debugging requires it. Alternatively, the JTAG header can be
used for debugging. When using an external debugger or programmer on the PDI header, the USB
AVR should be in any mode other than the PDI programmer. An ISP header is available for
programming the USB AVR. It can also be programmed over USB (see Firmware Updates).
Solder Jumpers / USB Shield
There are many solder jumpers on the PCB connecting XMEGA pins to the onboard peripheral
devices. This allows unused devices to be disconnected, freeing up the XMEGA pin, which is also
routed to a header, to be used for other purposes. External pull resistors are installed to keep the
peripheral pins at a defined state during boot or when the peripheral is disconnected. They pull chip
select lines to the deselected state to minimize power consumption. Most solder jumpers are
connected by default. To disconnect for the first time, a small trace connecting the two jumper pads
must be cut. To reconnect, create a solder bridge across the pads. Jumper J1 can be soldered to
connect the USB shield to ground. The USB specification calls for the USB shield to be connected to
ground on the host side only. However, it may be desired to ground this on the device side. An 0603
SMT component may be soldered on the solder jumper pads as well.
USB Serial Bridge
The USB Serial bridge allows the XMEGA to communicate with a computer over USB by
simply using a USART. There is no need to learn the USB protocol or utilize a USB library. All USB
functionality is handled by the USB AVR (AT90USB162). It simply relays bytes between the XMEGA
and the host. The MT-X1 uses two pins on USART F (RX and TX) in asynchronous mode and three
pins (adding XCK) in synchronous mode. Optionally, a USB ready signal is available on the XCK pin.
To minimize power consumption. TX should be tristated before entering sleep. This is due to the
sharing of PDI_DATA and TX. PDI_DATA has a pulldown active, which will consume current when TX
is set to output high. All three pins can be disconnected from the USB AVR using the solder jumpers.
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MT-X1 Manual
MicroSD Card
The MicroSD card slot has a spring-loaded mechanism that locks the card in place when
inserted (push-in, push-out). The contacts are gold-plated. It is connected to SPI E using four pins. All
pins have external 47Kohm pullups installed, except for MISO, which requires the internal pullup to
be enabled. All four pins can be disconnected from the MicroSD card slot using the solder jumpers.
Note that when in the deepest sleep modes and a card is installed, it will likely consume the most
current. Since the minimum load required by the regulator is 100uA, and the rest of the onboard
components may consume less than 75uA, having a card installed may allow disconnection of the
minimum load resistor (solder jumper), which itself consumes 100uA.
32KB SPI SRAM
The 32KB SPI SRAM is the 23K256-I/SN from Microchip. It has a very simple protocol, and
can be quite fast operating at 16MHz with sequential access (ie: data capture). It is less suitable for
storage that requires random access. It is connected to SPI D using four pins, all of which have
47Kohm external pull resistors. All four pins can be disconnected using the solder jumpers. A simple
driver is provided in the ASF template. More more information, consult the datasheet.
Audio Amplifier
The audio amplifier is the LM4889MM/NOPB from National Semiconductor. It is a single
channel, class AB, 400mW @ 3.3V amplifier with depop and thermal protection. It is connected to the
XMEGA DAC A0 on pin A2, which can be disconnected using a solder jumper. The shutdown pin is
routed to pin Q3 and has a 47 Kohm pull resistor to keep the IC in shutdown when Q3 is not driven.
The differential gain is set to 2, so the internal 1V reference or the external 1.25V reference can be
used. An 8ohm or 16ohm speaker can be connected to the output which is routed to a two pin header.
A 4ohm load can also be connected, but the amplifier may enter thermal shutdown if using a higher
voltage reference and the signal magnitude remains large for a long enough period of time. For more
information on this IC, please consult the datasheet.
1.25V Precision Reference
The 1.25V precision reference is the ISL60002DIH312Z-TK from Intersil. It is a low-power FGA
reference with a low 20ppm/C temperature coefficient. The initial accuracy is +/-5mV. Because each
MT-X1 board is intended to be calibrated individually, the initial accuracy was deemed less important
than the temperature coefficient. The reference is connected to both reference inputs, pins A0 and B0.
It can be disconnected using the solder jumpers. The reference voltage of 1.25V was chosen as a
workaround to the ADC errata of the ATxmega128a1. It is intended to be used with the ADC in
differential mode and with signed conversions. The voltage to be measured is connected to the
positive input, and the reference to the negative. This results in conversions in the ~0 to 2.5V range.
See the source code for example setup and usage. For more information on this IC, please consult
the datasheet.
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Temperature Sensor
The temperature sensor is the MCP9701AT-E/TT from Microchip. It is connected to pin A1,
and can be disconnected by using a solder jumper. It can sense from -10C to 125C, though the high
temperature is limited to the maximum PCB temperature. It has an accuracy of +/- 2C (max.) and it
outputs 19.5mV/C. It consumes only 6uA (typ.). For more information on this IC, please consult the
datasheet.
8-channel Lowside / Relay Driver
The 8-channel lowside / relay driver is the MAX4820 from Maxim. The outputs are open-drain.
Each channel can drive low at 70mA each. Channels can be connected together to increase the
current capability. All channels have kickback protection diodes, allowing them to driver relays. Note
that solder jumper J2 must be connected for kickback protection to be available. All eight outputs,
along with 3.3V (regulated Vcc) and ~5V (external voltage), are routed to a 10-pin header. Thus,
devices that use either 3.3V or 5V (ie: 5V relay, 5V LCD backlight) are supported. Voltages greater
than 5.5V on the external power input header require J2 to be disconnected, which will disable the relay
driver kickback protection. The IC is connected to SPI F and can be disconnected using the solder
jumpers. Note that MISO is not connected, so the XMEGA cannot read from the IC. Also note that the
SPI F SS line is not used as the chip select, but instead, Q2 is used. Thus, it is necessary to configure
the SS pin as an output, or enable the pullup and leave it as an input so that SPI will operate as a
master. The maximum operating speed is 2MHz. The protocol is very simple; essentially just a shift
register. A simple driver is provided in the ASF template. For more information on this IC, please
consult the datasheet.
LEDs
There are four LEDs connected to pins D0-D3, and can be disconnected by using the solder
jumpers. The LEDs are on when the outputs are high. The LEDs are connected to ground through 249
ohm series resistors.
External 1MB low-power SRAM (optional)
An external 1 MB low-power SRAM module is available separately.
* 8-Mbit (1024 x 8) static RAM
* Cypress CY62158EV30 IC
* 45ns
* 2.2V-3.6V
* 18mA (25mA max) @ max speed
* 2uA (8uA max) when not selected
* -40C to +85C
* 2 latches for address lines (20-bit)
* dedicated 8-bit data lines
* Measures 34.6mm x 25.0mm (1.36" x 0.98")
* Fits EBI header on MT-X1 development board
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MT-X1 Manual
Windows Installation
Windows Installation
Before plugging in the MT-X1 for the first time, the latest software and drivers must be
downloaded. The MT-X1 is supported under Windows XP, Vista (32 and 64 bit), and Windows 7 (32
and 64 bit). There is limited support for Windows 2000. The MT-X1 appears as three different devices
to the PC depending on which mode is selected by the button and jumper. These devices are the
AVRISP mkII compatible programmer, the DFU bootloader for firmware updates of the USB AVR, and
the USB CDC device (Virtual COM port) which is used for configuration mode and the USB Serial
bridge. Therefore, three drivers are required. The AVRISP mkII and DFU drivers are included with
software available on the Atmel website. The CDC driver is included with Windows, but requires an .inf
file available on the MattairTech website. The following table lists the minimum versions of the
required software. If the software provides a driver, is is listed as well. See the Firmware Updates
section for installation of the DFU bootloader driver.
Required Downloads
Software Version Driver RL
AVR Studio /
Atmel Studio 4.19, 5.x, or 6.x AVRISP mkII http://www.atmel.com/tools/AVRSTUDIO4.aspx OR
http://www.atmel.com/tools/ATMELAVRSTUDIO.aspx
MT-X1 Driver latest CDC driver https://www.mattairtech.com/software/MattairTech_CDC_Driv
er_Signed.zip
Atmel Studio (AVR Studio) / AVRISP mkII driver
Atmel Studio (formerly AVR Studio) is a free IDE provided by Atmel that runs on Windows
operating systems. It includes an assembler, debugger, simulator, and an AVR chip programming
utility. As of June 2012, there are three main versions supported, the 4.x, 5.x, and 6.x series. The 4.x
series is mature and stable, and can run on older hardware, however, it requires the use of the
WinAVR gcc toolchain, which is out of date. It also lacks proper support for newer devices, like the
XMEGA microcontrollers, but is a good option for older devices. AVR Studio 4.x is also smaller and
less demanding on PC resources. If you choose to use the 4.x series, download version 4.19. You will
also need to download and install WinAVR 20100110 prior to installation of AVR Studio. Both AVR
Studio 5.x and Atmel Studio 6.x are supported by the MT-X1. They includes the compiler toolchain, as
well as the AVR Software Framework (ASF). Use of the 5.x or 6.x series is recommended for the best
support of the ATxmega128a1. Whichever version you choose, be sure to install the Jungo drivers
when asked, which include the AVRISP mkII driver needed by the MT-X1 AVR programmer.
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Once Atmel Studio is installed, remove jumper JMP and plug in or reset the MT-X1 while
holding down the PROG button. This will run the AVRISP mkII compatible PDI programmer. LED_STS
should be lit and LED_PWR should be PWM flashing on and off. You will then be prompted for the
AVRISP mkII driver. By default, this is located in the Program Files/Atmel/AVR Jungo USB directory.
Point the installer to the appropriate subdirectory for your PC architecture (usb32 or usb64) and install
the driver. Do not use the driver in the AVR Tools/usb directory. Once the driver is loaded, the device
will appear as the AVRISP mkII device under Jungo in the device manager.
WinAVR / AVRDUDE
WinAVR contains the GNU GCC compiler for C and C++, compiler tools, and libraries
(including AVR Libc). It also includes AVRDUDE for Windows, which is a command line tool for
transferring firmware to AVR microcontrollers. A graphical tool is included with AVR Studio. Download
WinAVR from http://sourceforge.net/projects/winavr/files/WinAVR/20100110/ and install it first. To use
AVRDUDE, you will need to download and install an update to libusb-win32 available at
http://sourceforge.net/projects/libusb-win32/files/libusb-win32-releases/. Choose the libusb-win32-
devel-filter-x.x.x.x.exe file. Do this only after installing AVR Studio. You will also need to change the
MT-X1 AVRISP mkII Programmer host configuration to AVRDUDE. Note that WinAVR is outdated. It
is not recommended for newer devices like the XMEGA series. AVRDUDE can also be installed
separately.
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MT-X1 Manual
MT-X1 Driver / Serial Configuration
Next, the MT-X1 CDC driver can be installed, which is used by the serial bridge and
configuration mode. This driver allows the board to appear as a COM port. The driver itself is included
with Windows, but an .inf file is needed to configure it. Download the .inf file from
https://www.mattairtech.com/software/MattairTech_CDC_Driver_Signed.zip. Note that Windows Vista
64-bit, Windows 7 64-bit and Windows 8 require the signed driver. Now, plug in or reset the MT-X1
with jumper JMP removed. This will run the USB-serial bridge. Both LEDs should be lit. Windows will
then prompt you for the MT-X1 CDC driver. Point the installer to the directory where you downloaded
the driver and install. Note that you may need to rename the driver in order for it to show up in the
installer. Windows may add the .txt extension to the file after downloading. Rename it so that it ends
with .inf. Ignore any warnings given by the installer (ie: unsigned driver). Once the driver is loaded, the
device will appear as the MT-X1 CDC device using a COM port in the device manager. There is no
need to configure serial port parameters. The buad rate, for example, is ignored. The MT-X1 will
always communicate with the computer at full speed (up to 2Mbps). If you experience any buffering
problems, for example, a delayed response to user input, then change both buffer sizes to 1.
Terminal Emulator
Finally, the terminal emulator can be configured. Windows XP includes HyperTerminal, which
has been tested with the MT-X1 and will be documented here. There are several other terminal
emulators available freely on the Internet. If you wish to use any of them, it should be no trouble to
adapt the instructions presented here.
Next, start HyperTerminal. Create a new connection. You will refer to this connection again, so
give it an appropriate name (after it is configured, you can copy it to your desktop). Select the MT-X1
COM port (ie: COM4) and continue. It is not necessary to configure the baud rate or any other serial
parameters. Now, click on the connect icon.
After connecting, you may see garbage on the terminal screen. If this is the case, click on the
configuration icon and change the emulation to ANSI (or ANSIW). The configuration mode requires an
ANSI terminal to allow drawing of the menu system. Normally, when first entering a mode that uses
the CDC driver, a message that reads “Press any Key” is printed periodically. If you do not see this
message, just press any key to continue. Note that it may not be possible to switch between modes
using the button until a key is pressed.
It is important to always click the disconnect icon before switching to the PDI programmer.
Then click the connect icon a couple seconds after returning. This is required because changing to the
AVRISP mkII driver unloads the CDC driver, then loads the AVRISP mkII driver. In order for the
terminal to use the same COM port as before, it must be disconnected when returning to the CDC
driver so that it does not assign a new COM port.
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MT-X1 Manual
Linux Installation
Linux Installation
Linux is supported as well. You must download and build the toolchain from the latest script
available at AVR Freaks on the AVR GCC Forum (Script for building AVR GCC sticky at
http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=42631). All firmware written
for the MT-X1S is developed under Linux using this toolchain.
Drivers
TODO (drivers should already be installed)
GCC Toolchain
TODO (see opening paragraph)
AVRDUDE
TODO (ie: avrdude -p x128a1 -c avrisp2 -P usb -U flash:w:"myfirmware.hex")
dfu-programmer
TODO (must use version 0.5.2 or higher)
Terminal Emulator
TODO (can use minicom, config port (ie: /dev/tty/ACM0), save config, run with minicom -o)
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MT-X1 Manual
AVRISP mkII Compatible PDI Programmer
AVRISP mkII Compatible PDI Programmer
The MT-X1 onboard PDI Programmer is based on the AVRISP mkII compatible programmer
written by Dean Camera (http://www.fourwalledcubicle.com/). AVR Studio 4.19, 5.x, Atmel Studio 6.x,
and AVRDUDE are supported.
Using Atmel Studio (AVR Studio)
Start Atmel Studio and open or create a new project. An example project, which can be used
as a template, is available for the MT-X1 at http://www.mattairtech.com/software/MT-X1/MT-
X1_Simple_Demo.zip. To install, click File->Import->Project Template. Once installed, open the
template by clicking File->New->Project and selecting the MT-X1_Simple_Demo. Once loaded, you
can read the main source file. Also have a look at the src/config and src/asf/xmega/boards/mt-x1
directories using the solution explorer pane. You may also wish to view the toolchain options with
Project->Properties.
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MT-X1 Manual
Next, build the project. Then, click on the Device Programming button. In the Device
Programming window, select the AVRISP mkII as the tool. If no tool appears, be sure that the MT-X1
is plugged in and in programming mode (STS LED will be pulsing). Select the ATxmega128A1 as the
device and PDI as the interface and click Apply. You should now be connected to the AVRISP mkII
compatible programmer with serial number 000200012345. Now click Read next to Device signature.
It should match the device if all is well. It is recommended to always perform this step first to verify the
connection. The target voltage will always read 3.3V.
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MT-X1 Manual
Next, select the Memories page. In the Flash section, a hex file can programmed into the
targets flash memory. Load your hex file, then click Program. The hex file for the MT-
X1_Simple_Demo is located in the Debug folder. You will need to erase the target first if you do not
have “Erase Flash before programming” checked. You should also verify the flash as well.
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MT-X1 Manual
Next, select the Fuses page. It is best to leave the fuse settings alone until you understand
what they do. In particular, do not set the BOD (Brown-out detection) voltage too close to 3.3V, as this
could cause the target to be held perpetually in reset. Due to errata, the BOD should not be enabled in
sampled mode when active or idle (BODACT). Sampled mode is OK for other sleep modes (BODPD).
Now you may wish to look at the other pages. Note that any firmware upgrade feature should
not be used. The MT-X1 PDI Programmer is not an actual AVRISP mkII, it just emulates one, so you
should not attempt to update the MT-X1 firmware using Atmel Studio. Any firmware updates will be
posted to the website and loaded using FLIP or dfu-programmer.
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