HALE UMC32+ Manuel utilisateur

UMC32+ DIY USB-MIDI Controller

USER MANUAL

Firmware v3.1.0 / Hardware v1.1

UMC32+ DIY USB-MIDI User Manual

Product Description

The UMC32+ is an OEM/DIY product that allows Electronic Musicians, Multimedia Artists and Experimenters the ability to create

custom user interfaces to control any software application that supports the MIDI protocol. The UMC32+ provides the essential core

(microcontroller, power supply, USB functionality) to allow the user to easily implement their choice of control elements (example:

switches, pots and or faders). The UMC32+ will also translate data from your MIDI host application into logic levels for driving LEDs,

Relays and more.

Easy to implement with little or no electronics experience.

32 individually configurable inputs or outputs that send or receive user defined MIDI data with any MIDI host application.

64 I/O‟s can be achieved by linking two UMC32+‟s together using the UMC-Linker board (sold separately).

Multiple units can co-exist on the USB bus.

Small printed circuit board (1.7” x 3.3”) allows creating portable end devices

True plug-and-play (USB-MIDI class compliant drivers are provided by the operating system)

Compatible with all versions of Mac OS X, Windows 7 / Vista / XP / 2000

USB bus powered. A single USB cable handles power and data.

No programming is necessary (No code to write).

Upgradeable firmware via USB using Windows XP bootloader utility (32 bit only).

Using extended MIDI commands, complex MIDI mappings can be realized including:

oIndividual selection of each I/O‟s corresponding MIDI channel (1 to 16)

oIndividual selection of each I/O‟s corresponding MIDI message value

oIndividual selection of each I/O‟s corresponding MIDI message type(s):

Note On

Poly Pressure

Controller

Individual selection of each I/O‟s corresponding hardware type including:

oDigital Input with pull-up (active low) - For use with SPST tactile switches

oDigital Input (active low) - For receiving messages from sensors with active low TTL outputs

oDigital Input (active hi) - For receiving messages from sensors with active high TTL outputs

oAnalog Input - For connection to potentiometers, joysticks, faders etc.

oAnalog Input (Inverted) - Same as above, except that MIDI data is inverted.

oDigital Output (Active High) –For driving LED‟s, Relays, or high power FETs etc.

oLED Output with Blink –For blinking of status LED's (see manual for details).

The new “plus” version incorporates the following enhancements over original UMC32.

oA redesigned PCB with dedicated GND and VCC planes for enhanced signal integrity.

oI/O Configuration is now handled entirely by the configuration utility.

oConnector for external status LED, on board status LED is now blue.

oUSB connector is now the standard TYPE B and is much more secure.

oMounting holes (#4 screw) close to USB connector make for a near bulletproof installation.

oAUX I/O block for future expansion (TBD)

oImproved Firmware Boot loader

oLinkable with the original UMC32

oRoHS Compliant (lead Free), manufactured to IPC-A-610 Rev. B, Class II.

* Please note that that the new UMC32+ firmware is not compatible with the original UMC32.

Before proceeding it is strongly recommended that you read and understand the precautions

section of this manual. Please pay attention to the section discussing the safe handling and

how to avoid electrostatic discharge (ESD). Failure to observe the recommendations may

result in damage to your UMC32+ and void your warranty.

UMC32+ DIY USB-MIDI User Manual

Status Indicator LED (CN11)

The indicator LED (LED1) can be found next to the USB

connector. This LED provides information about the state of the

UMC. When connected, your computer will recognize the UMC

and load the class compliant USB-MIDI class device driver that

is provided by your operating system. The LED will stay on until

communication with your host application begins. At this point

the LED will flicker when MIDI traffic between the host

application and the UMC occurs.

The UMC32+ also provides a 2 pin header + (Anode) and –

(Cathode) for connecting to an external LED. It is important to

remember that in an addition to the LED itself, you will need to

provide a current limiting resistor in series with your LED (Less

than 20mA is recommended at 5V dc).

Boot Loader / Shift Pin (CN9)

When the UMC is plugged into the USB port it first checks the

state of the shift pin, if it is pulled low (your switch is being held)

then the UMC will enter bootloader mode and prepare to accept

a firmware update. Information regarding firmware updates will

be made available on our website at http://www.halemicro.com

In response to customer requests there have been many

revisions to the UMC firmware. It is important that you ensure

that you are reviewing the correct manual that corresponds with

the firmware version of your device.

During normal MIDI operation this pin can double the number of

software parameters you can control. See Hardware I/O Types

For more information

Multiple UMC’s using a USB Hub

For connecting more than 1 UMC32+ to the same computer it is

recommended that you install one of 8 available firmware

binaries on your UMC32+. First download the latest firmware

set from the Hale website. The zip file will contain multiple

firmware revisions with “.DLD” extensions. Next download and

install the UMC32+‟s firmware update utility, follow the

directions provided by the utility and select the appropriate

firmware. Each firmware binary is slightly different in that they

contain a unique USB product ID as well as a unique driver

name that allows the operating system to identify it on the USB

bus. As a rule of thumb it is recommended that when you are

configuring your device using the Configuration Utility you

dedicate one MIDI channel to each device (2 MIDI channels if

you are using the shift feature). As MIDI host applications and

operating system do not always load and assign UMCs in the

same order this method has proven to be a consistent way of

identifying each UMC that is connected to your system.

UMC32+ DIY USB-MIDI User Manual

Linking of two UMC’s for 64 IO’s (CN6)

You have the ability to link up to 2 (two) UMC32+s together using

the 5 pin aux port located at the far end of the board between

Bank2 (09-16) and Bank3 (17-24). The linking is achieved by

connecting the corresponding pins with jumpers or the “UMC

linker” board. Master / Slave operation is auto-detected making

the link hassle free. Please keep in mind that slaved units are not

accessible to the Configuration utility. Therefore each UMC must

be configured prior to being linked. The total current for both

devices must not exceed 500mA when utilizing USB bus power.

When using a UMC as a slave device the slave must have the

CN10 Jumper removed or the slave will not operate.

Setup for USB Power(CN10)

The factory default has CN10 fitted with a jumper to provide

power via the USB bus. This also provides a convenients means

for measuring the current consumption of your final build. The

only other cases where this jumper should be removed or off is

when a UMC is connected to a linker board and is being used as

a slave, or when external power is being used as a Master.

Aux Connector (An extra 8 inputs!)

This connector will provide a means for future expansion. It is

configured as a digital input with a 10mS debounce. The input

Type is NOT configurable and is fixed as Note On/Off Channel 1,

Note # 1 thru 8 if Master, and Notes # 9 thru 16 if a linked slave.

The shift pin also works here.

If a jumper is placed across Pin1 and Pin3 of the Aux Connector

(“A” and Ground - see Pin Diagram on Page 11), the UMC will

configure it‟s 32 I/O‟s as Digital Inputs. This test mode is useful

tor trouble shooting and diagnosis. It is also important to note that

this test mode will not overwrite any of your configuration settings

as only the configuration utility will do that.

UMC32+ DIY USB-MIDI User Manual

I/O setup using the configuration utility

To begin, download and install the UMC32+ configuration utility. It is recommended that your video display should be set at a minimum

screen resolution of 1024x768 or higher). The utility is available for download here.

How to configure (quick start):

1) Disconnect any wires, ribbon or usb cables from the UMC. Close any MIDI host applications that may be running as the

configuration utility needs exclusive access to the UMC‟s MIDI I/O.

2) Reconnect the UMC32+ to your PC with your USB cable. If this is the first time you have connected this device to your

computer please wait until Windows displays a message stating that your hardware/devices are ready to use.

3) After windows has installed and loaded the drivers for the device, launch the UMC32_Plus_ConfigUtil_v1xx application.

4) In the “MIDI Ports” section, select the IN Device, and the corresponding OUT device. If you are using Windows XP the

UMC32+ will show up as “USB Audio Device”, under Vista and Windows 7 it will show up as “UMC32+_D0x”, where x is the

device number. .. The device number you see will depend on the firmware that you have bootloaded into the UMC. All

devices are shipped from the factory as D01.

5) Click “Open” to open MIDI input and MIDI output ports.

6) Click “Read”. This will cause the application to grab all of the current configuration data for the selected device into the

application. The „Status‟ window should display the following:

“Status: UMC32+ read OK”

“Firmware: v3.x.x”

“Build Date: MM//DD//YY”

7) For each I/O channel select the Hardware I/O type, MIDI Channel, Message Type and message number.

8) When you are finished, click on “Write” to update the UMC with the changes you have made.

9) Exit/Quit the application.

10)Disconnect the USB cable from the UMC, then reconnect it to resume normal MIDI operations.

Please exercise care in selecting and connecting any sensors or controls to your UMC. It is

recommended that you triple check your wiring to and from the UMC. This is especially the

case when using Output Mode(s). It is quite easy to set a channel for output mode and mistake

it as an input when connecting your pots or switches causing a short circuit. If you are in doubt

about the hardware type of your control please post your compatibility question in the UMC32+

user forums located at http://forums.halemicro.com/.

UMC32+ DIY USB-MIDI User Manual

Configuration utility controls and settings

Hardware I/O Types:

I/O Disabled –Channel I/O is disabled and will not be processed. All unused channels should use this setting.

IN Digital w/pullup (2ms) –Channel is set for Digital (TTL) input with the microcontroller‟s internal pullup enabled. This type

is the same digital input mode when using the onboard DIP pack. This type of input is typically used to connect to a single

pole single throw switch. One end of the switch connects to ground the other will connect to this I/O channel. This type is also

useful for sensors that pull the line low (active low) when the sensor is actuated and release the line or place it in Hi-Z state

when the sensor is not actuated. The variations of this input type 2ms, 5ms, 10ms and 20ms denote the debounce delay

utilized when the switch is read. Higher values are useful for switches that generate unwanted noise when actuated.

IN Digital (Active Low) - Channel is set for Digital (TTL) input. This type is used when accepting a high or low signal from the

output of a powered sensor on/off type output. This is for sensors that pull the line low when the sensor is actuated and high

when it is not actuated.

IN Digital (Active High) - Channel is set for Digital (TTL) input. This type is used when accepting a high or low signal from

the output of a powered sensor with a on/off type output. This is for sensors that pull the line high when the sensor is actuated

and low when it is not actuated.

IN Analog Average - Channel is set for Analog (0v to 5volts) inputs. This is most commonly used for connection to

potentiometers, faders and joysticks. It can also accept the input from other sensors that output a voltage in the range of 0 to

5 volts. In this mode, an input of 5 volts will generate a message value of 127 (0x7F hex), whereas an input of 0 volts (ground)

will generate a message value of 0 (0x00 hex).

IN Analog Average w/Shift –Same as previous Type

IN Analog Average (Inverted) –Same as above however in this mode, an input of 5 volts will generate a message value of 0

(0x00 hex), whereas an input of 0 volts (ground) will generate a message value of 127 (0x7F hex). This mode is especially

useful if you happen to solder the +5V and Ground terminals on a potentiometer backwards. Instead of reopening your device

to correct the problem by resolder again, simply select this mode instead.

IN Analog Average (Inverted) –Same as previous Type

IN Analog Direct –This input type reports the raw value of the ADC and does not perform any averaging on the sampled

data. This mode is most useful for raw performance and is best used with so force sensing resistors or soft pots. You should

expect to see erroneous data from this type of input since filtering is disabled.

IN Analog Direct (Inverted) –Same as above however a value of 0 becomes 127, and 127 becomes 0. See above for more

information.

OUT Digital (Active High) –If a corresponding MIDI message is received by the UMC with a value of 0 then the output for

this channel will be low or 0 volts (ground). If the corresponding MIDI message is 127 (0x7F in hexadecimal) then the output

will be high or +5volts.

OUT LED Blink –This mode functions like the OUT Digital above however, values between 64 and 127 shall turn the LED on

values between 1 and 63 shall blink the LED. Zero value turns the LED off.

IN Analog Average (MIDI OFF) –This input type is used for internal testing and should not be used. The selected channel is

sampled however no data is transmitted.

MIDI channel shifting using the BtLdr/Shift pin

The configuration utility also provides variants of the above inputs types. These are post fixed as “with Shift”. When a button

connected to the shift pin is pressed data is transmitted on the base of the MIDI Channel plus 8. This effectively multiplies the number

of software parameters that you can manipulate with your controller. For example a button that ordinarily sends a “Note on, Note #24,

on MIDI Channel 1”, when Shifted instead sends “Note on, Note #24, MIDI Channel 9.” For types that are assigned with a base

channel of 9 thru 16, those are shifted down. For example a button that ordinarily sends a “Note on, Note #30, on MIDI Channel 10”,

when Shifted instead sends “Note on, Note #30, MIDI Channel 2.”

MIDI CH

Here you can select the desired MIDI Input or output channel that corresponds to the UMC32+‟s physical hardware I/O channel. Here

You can select 1 of 16 channels. When using multiple UMC32s on different ports of a USB hub it is recommended that you assign a

MIDI channel to a UMC and stick with it. As it is impossible to guarantee the order which multiple UMC32 will enumerate with

Windows a full proof way to consistently identify an assigned I/O is by its MIDI channel.

UMC32+ DIY USB-MIDI User Manual

Message Type

Note On (0x90) –This is the recommended message type for input or output controls that are Boolean or ON/OFF. Such controls are

switches, or other sensors that output a logic level high or low. When this mode is selected for a channel there are certain conditions

that will cause a note off (0x80) message to be generated. Instead of generating a Note On with a velocity of zero the UMC will

generate a true note off message. This applies to IN Digital w/Pullup (active low), IN Digital (Active Low), IN Digital (Active High)

hardware Input types. For the hardware Output type(s), both note on velocity of 0 as well as Note off velocity zero are interpreted

correctly by the UMC.

Poly Pressure (0xA0) & Controller (0xB0): These message types are recommended for I/O‟s that are configured as Analog inputs.

Msg Num (Message Number)

Depending on the Message type the message number may be interpreted differently. The allowable range for this parameter is 0 to

127 (0x00 to 0x7F in hexadecimal). With regards to note on and poly pressure message types these values are indicative of note

numbers or keys on a piano keyboard. For instance C-1 is 0, C#4 is 61 and

G9 is 127.

Default:

This will initialize all controls to the following: IN Digital w/pull-up (active low), MIDI Channel X (where X = the device #), Note On,

message number 36 thru 67.

All Off:

This will initialize all controls to the following: I/O Disabled, MIDI Channel X (Where X = the device #), Note On, message number 36

thru 67.

General Precautions

The UMC is designed to protect against short circuits, over current conditions, transient voltages and electrostatic discharge. However,

we ask that you observe some simple guidelines when working with the UMC. Failure to do so may cause damage to your equipment

and/or void your product warranty.

oTreat the UMC32 as you would any modern computer RAM and observe best practices for Electrostatic Discharge

see: http://www.phys.cwru.edu/courses/p203/resources/ESDprocedure.pdf or

http://www.esda.org/esd_fundamentals.html

oDo not place a jumper or otherwise short circuit the ExtLED pins or the Ext 5V Power pins.

oDo not solder any wires or attempt to make any modifications to the UMC directly.

oDo not connect the “+V” (+5 Volts DC) terminal to G (Ground). When this occurs, it is commonly referred to as a

“short circuit”.

oAlways unplug the USB cable from the device before modifying connections on the UMC.

oAs with all electronic devices, observe proper ESD handling practices. Always handle the printed circuit board (PCB)

by the edges, never touch the top or bottom. Failure to make sure you are ground

oNever allow the UMC to touch a wet or conductive surface.

oDo not use any external voltage source to power devices that are connected to the UMC.

oThe maximum recommended current per channel is 8mA..

oYou may use the +5V and Ground pins off each bank to power other devices such as LED‟s however the maximum

recommended is 80mA.

oAs an additional precaution, we strongly recommend using a powered USB hub when experimenting with the device.

Once you have finalized your project, and are sure you do not have any short circuits then you may connect the UMC

directly to your computer‟s USB input. This is especially important when interfacing with a laptop, as damage to your

laptop could be substantial.

oThis product is offered to the end user in a non-enclosed OEM form, it is the responsibility of the end user of this

product to ensure that they comply with local regulations pertaining to unintentional radio frequency emissions. In the

United States, this pertains to FCC rules and regulations, Part 15, Section B.

UMC32+ DIY USB-MIDI User Manual

Example Connections

Although there are a seemingly infinite number of types of control elements (potentiometers, switches etc.) that you can connect to the

UMC, here are a few examples of how to connect the most common types.

* Please note that connection to +5V is not necessary for any SPST switch.

UMC32+ DIY USB-MIDI User Manual

UMC32+ I/O Pin Diagram

UMC32+ in picture above with attached ribbon cable

Ribbon cable kit sold separately (Part # RIB50)

UMC32+ DIY USB-MIDI User Manual

Two (2) UMC32+’s with 10 EXP8SC screw terminal boards for 64 channel inputs plus an additional 16 switches on the Aux inputs (8

from master, 8 from slave). This provides a total of 80 controls using a single bus powered USB connector. Linker board (in center)

connects the UMC’s together. Using multiple processors (a dedicated processor for every 32 I/O’s and 8 aux inputs) the UMC can

achieve a scan rate that is 2X faster than a single processor. It should be noted that the UMC that is connected to the USB bus is the

Master, while the linked UMC is the slave.

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