mikroElektronika mikromedia for ARM User manual

user's guide to
mikrome ia
board for ARM
Compact development system rich with on-board peripherals for
all-round multimedia development on LPC2148 ARM7 device

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I want to express my thanks to you for being interested in our products and for having
condence in Mikroelektronika.
The primary aim of our company is to design and produce high quality electronic products
and to constantly improve the performance thereof in order to better suit your needs.
The Microchip, Atmel, NXP and CYPRESS name, logo and products names are trademarks of Microchip, Atmel, NXP and CYPRESS Inc. in the U.S.A and other countries.
TO OUR VALUED CUSTOMERS
Nebojsa Matic
General Manager

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Introduction to mikromedia for ARM 4
Related material 5
Key Features 6
System Specication 7
1. USB power supply 8
2. Battery power supply 9
3. Programing with In-System Programer 10
Settings 12
Flash magic software
step 1 – Choose Device 14
step 2 – Choose COM port 15
step 3 – Select baud rate 15
step 4 – Specify oscillator freq. 16
step 5 – Browse for .hex le 16
step 6 – Erase Flash 17
step 7 – Start Programming 18
step 8 – Finished! 18
4. LPC2148 Microcontroller 19
Key microcontroller features 19
5. Programing with JTAG programmer/debugger 20
6. microSD Card Slot 22
7. Accelerometer 23
8. Touch Screen 24
9. Audio Module 26
10. USB connection 28
11. Pads 30
12. Pinout 31
13. Dimensions 32
Table of Contents

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Introduction to mikromedia for ARM
The mikromedia for ARM is a compact
development system with lots of on-board
peripherals which allow development of
devices with multimedia contents. The
central part of the system is a 32-bit ARM7
microcontroller LPC2148. The mikromedia
for ARM features integrated modules such
as stereo MP3 codec, TFT 320x240 touch
screen display, accelerometer, two USB
connectors: one for communication with the
microcontroller one and for ISP programming,
MMC/SD card slot and other. Mikromedia is
compact and slim, and perfectly ts in the
palm of the hand, which makes it convenient
platform for mobile devices.

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Related material
01 02
04 05
03
06
Damage resistant
protective box
mikromedia for ARM
development system
mikromedia for ARM
user’s guide
mikromedia for ARM
schematic
DVD with documentation
and examples
USB cable
schematic
Compact development system rich with on-boardperipherals for
all-round multimedia development on LPC2148 microcontroller
mikrome ia
board for ARM

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Key Features
01
02
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Connection Pads
TFT 320x240 display
USB MINI-B programmer connector
LI-Polymer battery connector
USB MINI-B device connector
3.5mm headphone connector
Power supply regulator
FTDI USB Uart controller
VS1053 Stereo mp3 coder/decoder
Power indicator LEDs
Accelerometer
LPC2148 microcontroller
RESET button
MicroSD Card Slot
JTAG connector

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System Specication
power supply
Over a USB cable (5V DC)
board dimensions
8 x 6cm (3.14 x 2.36 inch)
weight
~50g (0.11 lbs)
power consumption
50mA in idle state
(when on-board modules are o)
03
06
07
08
09
11
10
12
13
14
15
04 05

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1. USB power supply
You can provide power supply to the
board using either of the two miniUSB
connectors. On board voltage regulator
will make sure to generate the
appropriate voltage levels to each part
of the board. Power LED will indicate the
presence of power supply.
Figure 1-1:
Powering your
mikromedia board
with USB cables

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Development system can be provided with power supply
using Li-Polymer battery, via on-board battery connector.
On-board battery charger circuit MCP73832 enables you
to charge the battery over USB power supply. Charging
current value is ~250mA and charging voltage is 4.2V DC.
VCC-5V
VCC-5V
VCC-BAT
R52
4K7
R53
3K9
LD3
VSS
PROG
STAT
VDD
VBAT
U6
STAT
MCP73832
D3
MBRS140T3
C35
2.2uF
VCC-5V VCC-BAT
E3
10uF
VCC-BAT
HDR3
M1X2
for Charging Current
approx. 250mA
Figure 2-2:
Li-polymer battery
connected to
mikromedia
2. Battery power supply
Figure 2-1: Battery charger connecting schematic

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The microcontroller can be programmed with In-System Programmer
supported in the hardware itself. Programmer USB connector is connected
to the microcontroller through USB-UART connection.
3. Programming with
In-System Programmer
Figure 3-1:
Connecting USB
cable to programming
connector
note You have to download and install drivers for your USB-UART
connection before programming. Drivers can be found on
FTDI website: http://www.ftdichip.com/FTDrivers.htm

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FP1
FERRITE
VCC-3.3
OSCI
DTR#
OSCO
TXD
TEST
VCC
RTS#
DSR#
AGND
RESET#
VCCIO
DCD#
NC
GND
RXD
CTS#
CBUS1
USBDM
GND
CBUS2
GND
USBDP
NC
CBUS3
CBUS0
3V3OUT
RI#
CBUS4
FT232RL
U2
VCC-FTDI
C19
100nF
VCC-3.3
C21
100nF
C20
C18
100nF
100nF
VCC-FTDI
E2
10uF
LPC2148
P1.27
P0.31
GND
P0.0
P1.31
P0.1
P0.2
VCC3
P1.26
GND
P0.3
P0.4
P1.25
P0.5
P0.6
P0.7
P1.24
VREF
XTAL1
XTAL2
P1.28
GNDA
P0.23
RESET
P1.29
P0.20
P0.19
P0.18
P1.30
VCC3
GND
VBAT
P0.21 P1.20
P0.17
P0.16
P0.15
P1.21
VCC3
GND
P0.14
P1.22
P0.13
P0.12
P0.11
P1.23
P0.10
P0.9
P0.8
P0.22
RTXC1
P1.19
RTXC2
GND
VCCA
P1.18
P0.25
D+
D-
P1.17
P0.28
P0.29
P0.30
P1.16
VCC3
D2
P0.1
MCU-RST#
P0.14
P0.0
R23 100
100
100
100
R24
R25
R26
MBRS340T3
CN3
USB-ID ID 4
GND 5
USBDP D+ 3
USBDM D- 2
VCC-USB VBUS 1
USB MINI-B
VCC-5V
VCC-FTDI
LD1
RED
R11
100
VCC-3.3
Figure 3-1: ISP programming lines are connected with USB-UART

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Device Manager on your PC contains informations on which COM
port is used for USB communication with the mikromedia board for
ARM. In this case the COM4 port is used.
01
Settings
01
02
03
03
From the drop menu select COM port on your PC.
02 Set Baud Rate to 19200.
Enter 12 in the Oscillator eld (if you use dierent oscillator
enter its value in MHz instead).
04
04 Right click on USB port, then on properties in the
drop-down list.
06
05 Select the Port Settings tab from pop-up window.
06 Click on the Advanced... button.
05

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07 In pop-up window uncheck the Serial Enumerator option and click OK.
07
note Steps 4 – 7 should be adjusted only once.

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Figure 3-2: Flash Magic window after installation
step 1 – Choose Device
Figure 3-3: Selecting target device
01 Click on Select device button and browse for LPC2148
microcontroller from ARM7 family of microcontrollers.
01
Programming is done using specialized programming
software called Flash Magic, which is available for download
from the mikromedia for ARM webpage.
Flash Magic software

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01 From the dropdown list select 19200 bps baudrate which
is the correct UART communication speed for mikromedia.
step 2 – Choose COM port step 3 – Select baud rate
Figure 3-4: Selecting COM Port
01 From the dropdown list choose the COM Port assigned
to your mikromedia board after connecting it to your PC
over USB cable.
01
Figure 3-5: Selecting baudrate

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Figure 3-6: Specifying oscillator frequency Figure 3-7: Browsing for HEX le
step 4 – Specify oscillator freq. step 5 – Browse for .hex le
01 01
Specify the value of on-board crystal oscillator 12.000 MHz Click on Browse and nd the HEX le you want to program
your mikromedia with. The path to the target le will be
shown in the edit eld.
01
01
01

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Figure 3-8: Write program
Figure 3-8: Erasing Flash memory before programming
step 6 – Erase Flash
01
01
Click on the Erase Flash icon in the main toolbar.
Tick the rst checkbox to specify erasing the entire ash.
Click on Erase button to start erasing ash.
Click OK when Erasing is completed.
02
03
01
01
02 03

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Figure 3-10: Uploading is nishedFigure 3-9: Program uploading
step 7 – Start Programming step 8 – Finished!
01 01
We are now ready to program the microcontroller.
Click on Start button to start uploading your program.
When everything is completed, you will receive a message
in the status bar.
01
01

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The mikromedia for ARM development system comes with
the LPC2148 microcontroller. This high-performance 32-bit
microcontroller with its integrated modules and in combination
with other on-board modules is ideal for multimedia applications.
4. LPC2148 Microcontroller
Key microcontroller features
- 32-bit architecture;
- 512KB of program memory;
- 32KB of RAM memory;
- 64 pins;
- 128 bit wide interface enables
high speed 60 MHz operation
- USB 2.0 Full Speed compliant Device
- 2-UART, 2-SPI, 2-I2C; etc.
- 16-bit/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.
- 8 kB to 40 kB of on-chip static RAM and 32 kB to 512 kB of on-chip flash memory.
- 128-bit wide interface/accelerator enables high-speed 60 MHz operation.
- In-System Programming/In-Application Programming (ISP/IAP) via on-chip boot loader software.
Single flash sector or full chip erase in 400 ms and programming of 256 bytes in 1 ms.
- EmbeddedICE RT and Embedded Trace interfaces offer real-time debugging with theon-chip
RealMonitor software and high-speed tracing of instruction execution.
- USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM.
(In addition, the LPC2146/48 provides 8 kB of on-chip RAM accessible to USB by DMA).
- One or two (LPC2141/42 vs. LPC2144/46/48) 10-bit ADCs provide a total of 6/14 analog inputs,
with conversion times as low as 2.44 μs per channel.
- Single 10-bit DAC provides variable analog output (LPC2142/44/46/48 only).
- Two 32-bit timers/external event counters (with four capture and four compare channels each),
PWM unit (six outputs) andwatchdog.
- Low power Real-Time Clock (RTC) with independent power and 32 kHz clock input.
Key features
ARM7 Local Bus
LPC2148
FAST GENERAL
PURPOSE I/O
TEST DEBUG
INTERFACE PLL0
SYSTEM
FUNCTIONS
PLL1
ARM7TDMI-S
AHB BRIDGE
system
clock
USB
clock
AMBA AHB
(Advanced High-performance BUS)
VECTORED INTERRUPT
CONTROLLER
Internal SRAM
controller
8 kB/16 kB/
32 kB SRAM
32 kB/64 kB/128 kB/
256 kB/512 kB
FLASH
Internal FLASH
controller
AHB TO VPB
BRIDGE
VPB
DIVIDER
8 kB RAM
SHARED WITH
USB DMA(3)
AHB DECODER
DATA BUS VPB (VLSI peripheral bus)
EXTERNAL
INTERRUPT
CAPTURE/
COMPARE
(W/EXTERNAL
CLOCK)
TIMER 0/TIMER 1
D/A
CONVERTER
PWM0
USB 2.0 FULL-SPEED
DEVICE CONTROLLER
WITH DMA(3)
I2C-BUS SERIAL
INTERFACES 0 AND 1
SYSTEM
CONTROL
WATCHDOG
TIMER UART0/
UART1
SPI AND SSP
SERIAL
INTERFACES
A/D
CONVERTERS
0 AND 1(2)
GENERAL
PURPOSE I/O REAL-TIME
CLOCK

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Besides In-System programming mikromedia for ARM supports JTAG programming and
debugging interface. In order to use it, you have to solder 2x10 header to the JTAG connection
pads on the back side of your mikromedia board. It is also necessary to solder and set the JTAG jumper, located right next
to the JTAG connector (Figure 5-1), in order to enable this type of programming.
5. Programing with JTAG
programmer/debugger
Figure 5-1: Enabling
JTAG using jumper