Propox EVBsam7s User manual




      
            
      
Evaluation Board for MMsam7s minimodule
User
Guide
REV 0.8
rterKitsEmbeddedWebServ
e
PICmicrocontrollersSt
a
-
sfor‘51,AVR,S
T
,
ationBoar
d
Evalu
rsPrototypingBoardsMinimod
-
Microprocesorsystems,PCB
AVR,PIC,STmicrocontrollers
edInSystemprogrammersfor
netcontrollers,RFIDHighSpe
-
ulesformicrocontrollers,ether-
designingEvaluationBoardsfo
r
ethernetcontrollers,RFIDHigh
nimodulesformicrocontrollers,
ServersPrototypingBoardsmi
-
lersStarterKitsEmbeddedWe
b
‘51,AVR,ST,PICmicrocontrol-
SpeedInSystemsprogramme-
rocontrollersStarterKitsEmbe
-
ardsfor`
51,AVR,ST,PICmic-
PCBdesigningEvaluationBo-
ollersMicroprocesorsystems,
rsforAVR,PIC,STmicrocontrl
-
ddedWebSerwersPrototyping
mersforAVR,PIC,STmicroco
-
HighSpeedInSystemprogra
m
-
controllers,ethernetcontrollers
,
BoardsMinimodulesformicro-
c
ontrollersMicroprocesor
B
oards
n
ingEvaluatio
n
S
ystems,PCBDesig
-
R
Many ideas one solution

Contents
1 INTRODUCTION ....................................................................................................................................... 3
F EATURES .................................................................................................................................................... 3
2THE BOARD.......................................................................................................................................... 4
P LACEMENT OF ELEMENTS ON THE BOARD ................................................................................................. 4
A RRANGEMENT OF LEAD - OUTS .................................................................................................................... 5
B OARD CONFIGURATION .............................................................................................................................. 5
B OARD SUPPLY ............................................................................................................................................ 7
LED DIODES ................................................................................................................................................. 7
P USH - BUTTONS ............................................................................................................................................ 8
LCD DISPLAY ............................................................................................................................................... 8
P OTENTIOMETERS ........................................................................................................................................ 9
B UZZER ........................................................................................................................................................ 9
RESET BUTTON ........................................................................................................................................ 10
RS-232 INTERFACES ................................................................................................................................. 10
USB INTERFACE ........................................................................................................................................ 11
1-W IRE INTERFACE .................................................................................................................................... 12
JTAG CONNECTOR .................................................................................................................................... 12
3TECHNICAL ASSISTANCE ............................................................................................................. 13
4GUARANTEE ...................................................................................................................................... 13
5BOARD LAYOUT AND DIMENSIONS ........................................................................................... 14
6SCHEMATIC........................................................................................................................................ 14

3
1 Introduction
The EVBlpc213x board was created with the aim of providing a hardware base for a designer of
systems relying on the MMlpc213x minimodule, allowing to realize and verify quickly one’s own
ideas. Having this in mind, the board has been designed in such a way that the user has access
to all terminals of the module which are led out to connectors. The board houses also such
peripherals as: LEDs, push-buttons, potentiometers, a LCD display, a RS232 interfaces, and a 1-
Wire connector. All these elements are accessible through pin connectors, permitting their
connection with any processor port. The board has also a large prototype area which permits the
designer to connect other elements in any configuration. Due to the incision (v-cut) between the
prototype area and the rest of the board, the prototype part can be broken off. The board contains
also a power supply which relieves the user from the need to provide a regulated supply voltage.
Together with the board, we deliver GCC compiler as well as demonstration software.
The EVBlpc213x along with the MMlpc213x minimodule can be also used in didactic laboratories
of informatics colleges and universities. It can be also used to build circuits realizing thesis
projects.
We wish you nothing but success and a lot of satisfaction in designing and
developing new electronic equipment based on the EVBlpc213x board and
the MMlpc213x minimodule.
Features
•Socket for the MMlpc213x module
•Connector with all terminals of the MMlpc213x module
•Connectors of all peripherals accessible on board
•Power supply
•Power switch
•USB connector
•Two RS232 ports
•1-Wire connector
•JTAG connector for in system programming and debugging
•connector for 2x16 LCD display
•8 LED diodes
•4 push-buttons
•2 potentiometers
•Buzzer
•Prototype design area

4
2 The Board
Placement of elements on the board
Figure 1 Placement of elements on the EVBlpc213x board.
1. Prototype area
2. Connector with led-out MMlpc213x module terminals
3. USB connector
4. RS232 0 connector
5. RS232 1 connector
6. Supply connector
7. Power switch
8. JTAG connector for in system programming/debugging
9. LCD display
10. LED diodes
11. Push-buttons
12. Potentiometers
13. RESET button
14. 1-Wire connector
15. Peripheral connectors
16. Buzzer
17. MMlpc213x module

5
Arrangement of lead-outs
Function in MMsam7s
Name Name
Function in MMsam7s
USBDP
1 2 USBDN
DataFlash – #CS
PA31
3 4 PA0
PA1
5 6 PA2
PA3
7 8 PA30
PA29
9 10 #RESET
PA28
11 12 PA27
PA4
13 14 PA5
PA6
15 16 PA7
PA8
17 18 UDP_PUP
ADVREF
19 20 AD4
AD5
21 22 AD6
AD7
23 24 PA17
PA18
25 26 PA21
PA19
27 28 PA22
PA23
29 30 PA20
PA16
31 31 PA15
DataFlash – SCK
PA14
33 34 PA13
DataFlash - MOSI
PA24
35 36 PA25
PA26
37 38 PA12
DataFlash – MISO
PA11
39 40 PA10
+3.3v
41 42 PA9
+5v
43 44 GND
Board configuration
EVBlpc213x board has nine configuration jumpers. Correct jumper settings are necessary for proper board
operation. Placement of jumpers on the board and their description is shown below.

6
Figure 2 Placement of configuration jumpers.
Jumpers description:
No Default
setting Description
JP11 Closed
+5V supply voltage for MMlpc213x minimodule.
This jumper allows measurement of current drawn by minimodule.
During normal operation this jumper should be closed.
JP1 Opened Board +5V power supply from USB bus. More details in “USB interfaced section”.
JP2
JP3
JP4
JP5
Opened
Opened
Opened
Opened
Jumpers connecting RxD (JP2), TxD (JP3), RTS (JP4) and CTS (JP5) lines of
RS232 1 transceiver with microcontrollers PA5, PA6, PA7 and PA8 lines
(microcontrollers UART0 port).
JP8
JP7
JP6
Closed
Closed
Closed
Jumpers connecting RxD (JP8) and TxD (JP7) lines of RS232 DBGU transceiver
with microcontrollers PA5, PA6, PA7 and PA8 lines (microcontrollers DBGU port).
JP6 jumper can by closed to make loop on RTS and CTS lines, or when jumper is
opened, these lines can be connected to any microcontrollers pins with wires.
JP10 Opened
JTAG mode selection:
Jumper opened – In Circuit Emulation mode.
Jumper closed – Boundary Scan mode.
J1 +5V supply voltage for external use.
J15 +3.3V supply voltage for external use.
J14 Ground.

7
Board supply
The EVBlpc213x board can be supplied in two ways:
•From an external power supply with an output of 7-12 V AC or 9-15 V DC, having a standard plug with
a bolt diameter of 2.1 mm, connected to supply socket J3. In case of a DC supply voltage its polarity
is irrelevant.
•From USB connector. In this case JP1 jumper should be closed.
Regulated +5V and +3.3V voltages are led to J1 (+5V) and J15 (+3.3V) connectors, ground to J14.
Caution: Both supply methods should not be used simultaneously!
+
C8
470u/25V
D2
1N4148
C13
100n
C12
100n
-+
2
1
3
4
BR1
RB152
1
2
3
J3
POWER
Vin Vout
GND
7805U4
+5V
+
C11
47u/16V
SW1
D11
PWR
R22
470R
GND
Figure 3 Implementation of the power supply on the EVBlpc213x board.
Solution with JP1 jumper allows drawing up to 100mA from USB bus. To draw higher current (up to 500mA),
accordingly to USB 1.1 or 2.0 specifications, power switch should be used. Software should turn on this power
switch after successful enumeration. Example of power switch is shown below (it is not implemented on the
board).
2
1
7, 8
100nF
+5V_USB
1k
VCC_USB
USB_PWR_EN
Figure 4 Optional USB power switch.
LED diodes
The EVBlpc213x has 8 LED diodes which play the role of the simplest interface between the system and the
user. The board is constructed in such a way that it allows any connection between the diodes and
microcontroller leads. A diode lights up when a low signal level is applied to appropriate leads. The LED
current flowing into the microcontroller pin is about 3.5mA.

8
D9 LED1
D10 LED0
D8 LED2
D7 LED3
D6 LED4
D5 LED5
D4 LED6
D3 LED7
R15 470R
R13 470R
R14 470R
R12 470R
R11 470R
R10 470R
R9 470R
R8 470R
+3.3V
1 2
3 4
5 6
7 8
J10
LEDn
Figure 5 Implementation of LED diodes.
Push-buttons
The EVBlpc213x board is equipped with four microswitches which can be connected to any lead of the
microcontroller. Pushing a button causes a low state on any port terminal.
R19
10k
R18
10k
R17
10k
R16
10k
+3.3V
SW0
SW1
SW2
SW3
GND
1 2
3 4
J12
SWn
Figure 6 Implementation of push-buttons.
LCD display
MMlpc213x has place for standard 2x16 characters LCD display with HD44780 compatible controller. Display
terminals D4-D7, RS, E, contrast and backlight are led to LCD connector J7. LCD connector is designed in
this way, that it is possible to connect contrast signal to onboard potentiometer with use of jumpers, or with
use of wire to any microcontroller pin, that can generate PWM (through RC low pass filter, which can be built
on prototype area). Similarly, LCD backlight can be permanently turned on by closing jumper, or can be
controlled by any microcontroller pin.
Because LCD connector contains only higher part of display bus, it has to work 4-bit mode. Also, RW line is
permanently connected to ground, what allows only read operation, but it is sufficient to proper operation.
Such approach minimizes required microcontroller port pins to six.

9
Figure 7 Default LCD configuration
– backlight permanently turned on,
contrast regulated with R5
potentiometer.
C15
100n
GND
+5V
+5V
GND
R4
7k5 LCD_RS
LCD_RW
LCD_E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J11
LCD 2x16
Vc
D0
D1
D2
D3
D4
D5
D6
D7
GND
+5V
A
K
+5V
Q2
BC 817
GND
R24
1k
1 2
3 4
5 6
7 8
9 10
J7
+5V
R5
1k
CONTRAST
LGT
GND
Figure 8 Connection of LCD display on the board..
Potentiometers
EVBlpc213x has two potentiometers, POT0 and POT1. The potentiometers can be used to simulate the
outputs of analog circuits. The voltage across POTx terminals can be adjusted in the 0...3.3V range.
10k
1 3
2
R20
ADJ1
GND
10k
1 3
2
R21
ADJ0
1 2
3 4
J13
+3.3V
Figure 9 Implementation of potentiometers.
Buzzer
The board has a built-in acoustic signaler, controlled by a logic low state through a transistor. The base of the
transistor is connected to connector J13 as SPK.
LS1
BUZZER
Q1
BC 857
C17
100n
GNDGND
1 2
3 4
J13
R6
10k
R23
10k
+3.3V
Figure 10 Implementation of the Buzzer.

10
RESET button
The EVBlpc213x board is equipped with an on-board resetting button; by pressing it we force a low state on
the RESET terminal of the module.
#RESET
SW6
RESET
GND
Figure 11 Implementation of the RESET push-button.
RS-232 interfaces
EVBlpc213x has two RS232 ports with DB-9 connector. TxD and RxD lines are led to jumpers through
MAX3232 transceiver.
Stuffing jumpers causes connection of TxD and RxD signals to microcontrollers UART0 or UART1 ports.
RS232 signals can also be connected to microcontrollers remaining two UART ports with use of wires.
Drawing below shows implementation of RS232 ports and RS232 0 port connected to microcontrollers P0.8
and P0.9 pins (UART0).
13
10
11
8
12
9
14
7
C1+ 1
C2+ 4
GND 15
C1- 3
VCC
16
C2- 5
V-
6
V+
2
U1
MAX3232CSE
RX1
TX1
GNDGND
13
10
11
8
12
9
14
7
C1+ 1
C2+ 4
GND 15
C1- 3
VCC
16
C2- 5
V-
6
V+
2
U2
MAX3232CSE
RTS0
CTS0
RX0
TX0
RX0
CTS0
RTS0
TX0
GNDGND
1
6
2
7
3
8
4
9
5
J5
DB9F +3.3V+3.3V+3.3V+3.3V
+3.3V +3.3V
+3.3V
+3.3V
GND
GND
GND
1
6
2
7
3
8
4
9
5
J8
DB9F
GND
GND
GND
DBGURS-232 0
D15
CTS1
D16
RXD1
D17
RTS1
D18
TXD1
D13
RXD0
D14
TXD0
RS232_0_TXD
RS232_0_RTS
RS232_0_RXD
RS232_0_CTS
RS232_1_TXD
RS232_1_RXD
JP4
JP2
JP5
JP3
JP7
JP8
R27
220R
R28
330R
R29
220R
R30
220R
R31
330R
R32
330R
C9
100n
C6
100n
C7
100n
C5
100n
C4
100n
C2
100n
C3
100n
C1
100n
C10
100n
C14
100n
GND
GND
RTS1
CTS1
RX1
CTS1
RTS1
TX1
+3.3V+3.3V
D1
CTS0
D12
RTS0
RS232_1_RTS
RS232_1_CTS
JP6
R3
220R
R7
330R
PA9
PA10
PA5
PA6
PA7
PA8
Figure 12 Connection of RS-232 ports to MMlpc213x.