Digilent 410-236P-BOARD Bedienungsanleitung PDF herunterladen (Seite 2)

FMC-HMI Reference Manual

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provides simultaneous playback and recording

capabilities to and from a variety of sources

through standard audio jacks. Users control

the audio with a standard two-wire interface

and an I²S compatible bus presents the digital

audio.

Note: For more information on the SSM2603

see ADI datasheets available online at:

http://www.analog.com/en/audiovideo-

products/audio-

codecs/ssm2603/products/product.html

Shanghai Tianma TM050RBH01

The Shanghai Tianma TM050RBH01 has a 5”

light emitting diode (LED) backlit thin film

transistor-liquid crystal display (TFT-LCD)

assembly that integrates a resistive touch

panel covering the whole active display area.

The TFT-LCD assembly arrives taped to the

printed circuit board (PCB) and connects

through a 45-pin FPC connector. The FPC

cable carries both the digital display interface

and analog touch panel signals.

The display interface is a straight-forward 24-

bit RGB pixel bus. The support circuitry on-

board the FMC-HMI provides backlight

intensity control with pulse width modulation.

The four analog signals, X+, X-, Y+, Y-

comprise the X and Y plate electrodes. To

determine the touch coordinates, users must

bias the plates and measure the resistive

divider formed by the electrically charged

resistive plates using an analog-to-digital

converter (ADC) count. When operators use

the Shanghai Tianma with system boards that

have XADC support, they can use the AMS

header to digitalize the analog touch panel

signals. An on-board analog multiplexer (MUX)

switch helps users select the correct panel

electrodes for measurement.

Note: For more information on the

TM050RBH01 consult the product details for

the VmodTFT - Color LCD Touch Screen

available online at:

http://digilentinc.com/Products/Detail.cfm?Nav

Path=2,648,979&Prod=VMOD-TFT

FMC support

The FMC-HMI uses a Samtec ASP-134604-01

low pin-count male connector as the main

connector for digital signals. Everything except

for the PCB dimension requirements conforms

to the VITA 57.1 specs. The connector

supports the full range of 1.8V-3.3V bank

supply voltages (VADJ).

AMS header

The AMS header is there to provide support for

the XADC feature of seven-series system

boards. Operators can use the AMS header

signals to bias the touch panel by selecting the

analog MUX inputs and carrying the differential

analog signal to the FPGA pins for

measurement.

12-pin Pmod header

A female double Pmod connector offers users

the option to connect various Pmods to the

system board. Operators can utilize the

ADG3308 auto-sensing bidirectional level

translator to level shift from 3.3V to VADJ. It is

important to note that due to its low drive

current this level translation prohibits the use of

strong pull resistors (<60kOhm) on data

signals.

Piezoelectric buzzer

A Kingstate Electronics Corp. KMTG1603-1 is

beneath the screen to provide audible

feedback for various frequencies.

Note: For more information on the KMTG1603-

1 see Kingstate product information at:

http://www.kingstate.com.tw/Products/Products

/ProductItem/tabid/186/rtab/187/Default.aspx?I

temId=399

1 2

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