Download User`s Manual

Evaluation Board for
MMnet02
User’s
Manual
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Contents
1 INTRODUCTION ....................................................................................................................................... 3
FEATURES .................................................................................................................................................... 3
2
THE BOARD.......................................................................................................................................... 4
PLACEMENT OF ELEMENTS ON THE BOARD ................................................................................................. 4
ARRANGEMENT ON LEAD-OUTS ................................................................................................................... 5
BOARD SUPPLY ............................................................................................................................................ 6
LED DIODES ................................................................................................................................................. 6
PUSH-BUTTONS ............................................................................................................................................ 7
LCD DISPLAY ............................................................................................................................................... 7
POTENTIOMETERS........................................................................................................................................ 8
BUZZER ........................................................................................................................................................ 8
RESET BUTTON .......................................................................................................................................... 9
RS-232 INTERFACE ..................................................................................................................................... 9
1-W IRE INTERFACE .................................................................................................................................... 10
CONNECTION TO THE ETHERNET NETWORK ............................................................................................. 11
ISP AND JTAG CONNECTORS ................................................................................................................... 12
3
TECHNICAL ASSISTANCE ............................................................................................................. 13
4
GUARANTEE ...................................................................................................................................... 13
5
BOARD LAYOUT AND DIMENSIONS ........................................................................................... 14
6
SCHEMATICS ..................................................................................................................................... 14
1 Introduction
The EVBnet02 board was created with the aim of providing a hardware base for a designer of
systems relying on the MMnet02 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 interface, 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 source codes of the Nut/OS together with the TCP/IP stack as
well as demonstration software.
The EVBnet02 along with the MMnet02 minimodule can be also used in didactic laboratories of
informatics colleges and universities, illustrating aspects of co-operation of electronic circuits with
the Ethernet/Internet networks. 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 EVBnet02 board and the
Mmnet02 minimodule.
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Socket for the MMnet02 module
Connector with all terminals of the MMnet02 module
Connectors of all peripherals accessible on board
Power supply (supplying power is taken from a standard socket or supplied through the Ethernet
cable)
Power switch
RJ45 Ethernet socket with transformer
RS232 port
1-Wire connector
Connector for In System Programming
Multiplexer separating the ISP connector from the rest of the system
JTAG connector for in system programming and debugging
(1)
2x16 LCD display
8 LED diodes
4 push-buttons
2 potentiometers
Buzzer
Prototype design area
Notice: 1. Mounted optionally
3
2 The Board
Placement of elements on the board
The block schematic diagram of the MMnet02 is shown in the drawing:
Figure 1 Placement of elements on the EVBnet02 board.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Prototype area
Connector with led-out MMnet02 module terminals
1-Wire connector
RJ45 Ethernet connector
RS232 connector
Supply connector
Power switch
Programming connector in the JTAG system
Programming/emulation connector in the JTAG system
LCD display
LED diodes
Push-buttons
Potentiometers
RESET button
Peripheral connectors
Buzzer
MMnet02 module
4
Arrangement on lead-outs
Numbering of terminals is in accord with the numeration in the MMnet02 minimodule. The terminals of Ethernet controller
TPIN, TUPOT have not been led out to a connector.
Function in MMnet02
Name
Name
Function in MMnet02
+5V
1
2
GND
+3.3V
3
4
GND
Vbat
5
6
GND
LEDLINK
11
12
LEDACT
#RESET
13
14
LEDDF
#WR
15
16
#RD
PD7/T2
17
18
PD6/ T1
PD5
19
20
PD4/ IC1
PD3/#INT3/TxD1
21
22
PD2/#INT2/RxD1
PD1/#INT1/SDA
23
24
#INT0/SCL
RTC – SCL
PB7/ OC2/PWM2
25
26
OC1B/PWM1B
DataFlash2 - #CS
PB5/ OC1A/PWM1A
27
28
OC0/PWM0
PB3/ MISO
29
30
MOSI
PB1/ SCK
31
32
PB0/#SS
AD7
1
2
AD6
AD5
3
4
AD4
AD3
5
6
AD2
AD1
7
8
AD0
A1
9
10
A0
SEL2
11
12
SEL1
RTL8019AS interrupt
PE7/ INT7
13
14
PE6/ INT6
RTL8019AS int. (opt.)
PE5/ INT5
15
16
PE4/ INT4
PE3/ AC-
17
18
PE2/ AC+
PE1/ PDO/TPD
19
20
PE0/ PDI/RxD
PF7/ ADC7/TDI
21
22
PF6/ ADC6/TDO
PF5/ ADC5/TMS
23
24
PF4/ ADC4/TCK
PF3/ADC3
25
26
PF2/ ADC2
PF1/ ADC1
27
28
PF0/ ADC0
AREF
29
30
AGND
A+5V
31
32
AGND
RTC – SDA
DataFlash1 – #CS
DataFlash1/2 – MISO
DataFlash1/2 – SCK
DataFlash1/2 - MOSI
5
Board supply
The EVBnet02 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.
Through the J5 Ethernet connector. The terminals of
the connector to which the supplying power is
applied should conform to the Power over Ethernet
802.3af standard (however, the applied voltage
should not be higher than 12V AC !). In order to
apply power through the RJ45 connector, the board
should be provided with JP1 jumpers.
•
The regulated + 5 V voltage is led out to the J1 connector (+
5V) and J14 (GND).
Both supply methods should not be used simultaneously.
J5 RJ-45
2
4
8
7
6
5
4
3
2
1
D2
1
3
2
JP1
LAN_GND
J3
1
2
3
4
BR1
RB152
+
-
1N4148
SW1
1
+
3
ZASILANIE
C8
470u/25V
C13
100n
Vin Vout
GND
U4
7805
+5V
C12
100n
+
C11
47u/16V
GND
Figure 2 Implementation of the power supply on the EVBnet02 board.
LED diodes
The EVBnet02 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 mA.
6
+5V
LEDn
1
3
5
7
2
4
6
8
J10
D10
LED0
R15 1k
D9
LED1
R14 1k
D8
LED2
R13 1k
D7
LED3
R12 1k
D6
LED4
R11 1k
D5
LED5
R10 1k
D4
LED6
R9 1k
D3
LED7
R8 1k
Figure 3 Implementation of LED diodes.
Push-buttons
The EVBnet02 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.
+5V
R19 R18 R17 R16
10k 10k 10k 10k
1
3
SWn
SW0
2
4
SW1
J12
SW2
SW3
GND
Figure 4 Implementation of push-buttons.
LCD display
The LCD display is connected to the data bus of the microcontroller. The connection method permits only the
write operation to the display, which is, however, sufficient for its operation. The SEL1 output should be
configured as a write strobe. The display is seen in the address space from 0xFF04 to 0xFF05, the choice
between the instruction register and the data register of the display is executed by means of the A0 address
line:
0xFF04 – data register
0xFF05 – instruction register
The contrast voltage of the LCD is set by the voltage divider R4 and R5.
7
+5V
R4
7k5
J11
GND
+5V
R5
620
C15
100n
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A0
GND
#SEL1
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
LCD 16x2
Figure 5 Connection of the LCD display to the microcontroller bus.
Potentiometers
EVBnet02 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....REF range.
1
3
2
4
3
AREF
3
J13
2
2
1
1
R20
10k
POT1
R21
10k
POT0
GND
Figure 6 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.
8
1
3
2
4
J13
+5V
R6
Q1
BC 857
10k
LS1
C17
CAP
GND
GND
BUZZER
Figure 7 Implementation of the Buzzer
RESET button
The MMnet02 board has a led-out RESET signal which can be used as the output to reset external circuits
and as the input to reset the module, e.g. through the RESET push-button. The EVBnet02 board is equipped
with an on-board resetting button; by pressing it we force a low state on the RESET terminal of the module.
+5V
R7
4k7
#RESET
SW6
RESET
GND
C16
100n
GND
Figure 8 Implementation of the RESET push-button.
RS-232 interface
The EVBnet02 board has one port for serial RS232
transmission with a DB-9 connector. The lead-outs
TxD, RxD, RTS, CTS are applied to the jumpers
through a MAX232 level converter. The DSR and DTR
signals have been shorted.
Applying jumpers causes the connection of TxD and
RxD to the USART0 port of the microcontroller and of
CTS and RTS signals to line PE2 and PE3,
respectively. Signals of the RS232 port can be
connected also to any lead-outs of the microcontroller
by means of cables.
9
Attention: if flow control has not been
implemented, signals CTS and RTS should be
connected to each other by means of a jumpers
(as shown in the figure) in order to assure proper
communication.
+5V
2
+
6
J4
V-
C1C2+
GND
C4
100n
3
4
+ C5
100n
C214
7
13
8
T1 OUT
T2 OUT
R1 IN
R2 IN
MAX232
GND
GND
GND
1
T1 IN
T2 IN
R1 OUT
R2 OUT
PE1 (TXD0)
JP3
5
11
10
12
9
PE2
RS232_TXD
RS232_CTS
RS232_RXD
RS232_RTS
JP4
PE0 (RXD0)
JP2
PE3
JP5
15
5
9
4
8
3
7
2
6
1
C1+
+
C7
100n
+
GND
V+
VC C
U1
C6
100n
16
+5V
GND
DB9F
Figure 9 Connection of the RS-232 port to the MMnet02 board.
1-Wire Interface
The EVBnet02 board has a 1-Wire bus connector. This connector can be used to connect e.g. a digital
DS1820 thermometer or Dallas/Maxim iButton reader from. The data signal has been applied to the J13
connector and designated as 1-W. It can be connected to any microcontroller lead-out by means of the
attached cable.
V TG
DATA
GN D
+5V
1
1
3
2
4
J13
R2
2k2
+5V
J2
R1
100R
1
2
3
1-WIRE
GND
1WIRE
Figure 10 Connection of the 1-Wire connector.
10
Connection to the Ethernet network
The EVBnet02 board has an Ethernet RJ-45 socket. The lead-outs of the RJ-45 are connected with the
Ethernet RTL8019AS controller through a 10Base-T transformer. The maximum cable length between the
EVBnet02 board and the hub/switch is 100 meters.
AC1
2
4
AC2
1
3
JP1
U2
7
TPOUT-
6
11
5
12
4
13
3
14
2
1
TPOUT+
C10
10n
C9
10n
J5 RJ-45
10
XMIT
TPIN+
9
RCV
8
TPIN-
8
7
6
5
4
3
2
1
15
16
20F001N
C2
10n/2kV
C3
10n/2kV
JP6
GND
LAN_GND
LAN_GND
LAN_GND
Figure 11 Connection to he Ethernet through a transformer.
TX+
TXRX +
N/C
N/C
RX N/C
N/C
GND
Figure 12 RJ-45 connector pin description.
11
ISP and JTAG connectors
Programming of the module can be effected through the ISP or JTAG interfaces (the second one permits also
debugging in the system).
The ISP standard programmer communicates with the microcontroller through a three-wire SPI interface (plus
the RESET signal and power supply). The interface uses the I/O pins of the microcontroller (PE0, PE1 and
PB1) which, after programming, can perform usual functions. The LED signal controls the operation of
multiplexer U3 which disconnects, for the duration of the programming session, the ISP bus lines from the
peripheral circuits of the board, thus eliminating the possibility of an accidental writing operation into these
circuits. During the writing operation this line should be in the low state. The JP7 short allows manual control
of the multiplexer in case of using a programmer which is not serving this line.
JTAG is a four-lead interface permitting the takeover of control over the processor’s core and its internal
peripherals. The possibilities offered by this interface are, among others: step operation, full-speed operation,
equipment and program pitfalls, inspection and modification of contents of registers and data memories. Apart
from this, functions are available offered by ISP programmers: programming and readout of Flash, EEPROM,
fuse and lock bits.
J8
TCK ADC4
TDO ADC6
TMS ADC5
+5V
TDI ADC7
1
3
5
7
9
2
4
6
8
10
GND
+5V
#RESET
GND
JTAG
PE1
J6
GND
GND
GND
GND
+5V
10
8
6
4
2
9
7
5
3
1
PB1
#RESET
PE0
GND
ISP
+5V
R3
1k
D1
ISP
JP7
12
13
2
1
5
3
6
11
10
9
U3
X0
X1
Y0
Y1
X
Y
Z
14
15
4
PE1_M
PB1_M
PE0_M
Z0
Z1
INH
A
B
C
VDD
VSS
VEE
16
8
7
+5V
GND
GND
4053
ISP Enable
GND
Figure 13 Connection of the MMnet02 module with the JTAG connector.
12
1
MOSI
LED
RST
SCK
MISO
2
9 10
VCC
GND
GND
GND
GND
Figure 14 ISP connector.
TCK
TDO
TMS
VCC
TDI
1
2
9 10
GND
Vref
NSRST
NTRST
GND
Figure 15 JTAG connector.
Pin description
MOSI
Commands and data from programmer to target
LED
Multiplexer and LED diode driving signal
RST
RESET signal
SCK
Serial Clock, Controlled by programmer
MISO
Data from target AVR to programmer
VCC
Supply voltage to the programmer
GND
Ground
TCK
TDO
TMS
VCC
TDI
Vref
RST
GND
Pin description
Test Clock, clock signal from emulator to target
Test Data Output, data signal from target to emul.
Test Mode Select, mode select signal from
emulator to target
Supply voltage to the emulator
Test Data Input, data signal from emul. to target
Target voltage sense
RESET signal
Ground
Programmers which may be used with EVBnet02 and MMnet02 may be found on pages:
- ISPCable I: http://www.propox.com/products/t_77.html?lang=en
- ISPCable II: http://www.propox.com/products/t_78.html?lang=en
JTAG programmer/emulator may be found on page:
- JTAGCable I: http://www.propox.com/products/t_99.html?lang=en
3 Technical assistance
In order to obtain technical assistance please contact [email protected] . In the request please
include the following information:
•
•
•
Number of the board version (e.g. REV 2)
Setting of resistors
A detailed description of the problem
4 Guarantee
The MMnet02 minimodule is covered by a six-month guarantee. All faults and defects not caused by the user
will be removed at the Producer’s cost. Transportation costs are borne by the buyer.
The Producer takes no responsibility for any damage and defects caused in the course of using the MMnet02
module.
13
5 Board layout and dimensions
6 Schematics
14
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
A1
A0
#SEL2
#SEL1
PE7
PE6
PE5
PE4
PE3
PE2
PE1_M
PE0_M
ADC7
ADC6
ADC5
ADC4
ADC3
ADC2
ADC1
ADC0
AREF
AGND
A+5V
AGND
+5V
R4
7k5
J11
GND
+5V
R5
620
C15
100n
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A0
GND
#SEL1
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
LCD 16x2
J1_1
J1_2
J1_3
J1_4
J1_5
J1_6
J1_7
J1_8
J1_9
J1_10
J1_11
J1_12
J1_13
J1_14
J1_15
J1_16
J1_17
J1_18
J1_19
J1_20
J1_21
J1_22
J1_23
J1_24
J1_25
J1_26
J1_27
J1_28
J1_29
J1_30
J1_31
J1_32
M1
AD7
+5V
AD6
GND
AD5
+3.3V
AD4
GND
AD3
Vbat
AD2
GND
AD1
TPIN+
AD0
TPINA1
TPOUT+
A0
TPOUT#SEL2
LED_LINK
#SEL1
LED_ACTIV
PE7/INT7
#RESET
PE6/INT6
LED_DF
PE5/INT5
#WR
PE4/INT4
#RD
PE3/ACPD7/T2
PE2/AC+
PD6/T1
PE1/PDO/TxD0
PD5
PE0/PDI/RxD0
PD4/IC1
PF7/ADC7
PD3/INT3/TxD1
PF6/ADC6
PD2/INT2/RxD1
PF5/ADC5
PD1/INT1/SDA
PF4/ADC4
PD0/INT0/SCL
PF3/ADC3
PB7/OC2/PWM2
PF2/ADC2
PB6/OC1B/PWM1B
PF1/ADC1
PB5/OC1A/PWM1A
PF0/ADC0
PB4/OC0/PWM0
AREF
PB3/MISO
AGND
PB2/MOSI
A+5V
PB1/SCK
AGND
PB0/SS
J2_1
J2_2
J2_3
J2_4
J2_5
J2_6
J2_7
J2_8
J2_9
J2_10
J2_11
J2_12
J2_13
J2_14
J2_15
J2_16
J2_17
J2_18
J2_19
J2_20
J2_21
J2_22
J2_23
J2_24
J2_25
J2_26
J2_27
J2_28
J2_29
J2_30
J2_31
J2_32
+5V
+5V
GND
+3.3V
GND
Vbat
GND
TPIN+
TPINTPOUT+
TPOUTLED_LINK
LED_ACTIV
#RESET
LED_DF
#WR
#RD
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PB7
PB6
PB5
PB4
PB3
PB2
PB1_M
PB0
1
3
5
7
2
4
6
8
J10
D10
LED0
R15 1k
D9
LED1
R14 1k
D8
LED2
R13 1k
D7
LED3
R12 1k
D6
LED4
R11 1k
D5
LED5
R10 1k
D4
LED6
R9 1k
D3
LED7
R8 1k
+5V
R19 R18 R17 R16
10k 10k 10k 10k
MMnet02 module
SW0
1
3
2
4
SW1
J12
SW2
J9
AD7
AD5
AD3
AD1
A1
#SEL2
PE7
PE5
PE3
PE1
ADC7
ADC5
ADC3
ADC1
AREF
A+5V
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
SW3
AD6
AD4
AD2
AD0
A0
#SEL1
PE6
PE4
PE2
PE0
ADC6
ADC4
ADC2
ADC0
AGND
AGND
GND
+5V
Header 16X2
+5V
+3.3V
Vbat
LED_LINK
#RESET
#WR
PD7
PD5
PD3
PD1
PB7
PB5
PB3
PB1
J8
2
4
6
8
10
GND
+5V
#RESET
1-WIRE
1
3
GND
2
4
J13
+5V
+5V
R7
4k7
PB1
#RESET
PE0
GND
ISP
R3
1k
D1
ISP
JP7
ISP Enable
2
1
5
3
6
11
10
9
X0
X1
Y0
Y1
X
Y
Z
14
15
4
INH
A
B
C
4053
10k
PE1_M
PB1_M
GND
+5V
VDD
VSS
VEE
16
8
7
#RESET
LS1
C17
CAP
PE0_M
Z0
Z1
Q1
BC 857
+5V
GND
GND
AREF
C14
100n
GND
2
2
R20
10k
POT1
R21
10k
POT0
GND
15
GND
C16
100n
GND
http://www.propox.com
email: [email protected]
Title: MMnetEVB
Size:
GND
BUZZER
GND
SW6
RESET
3
9
7
5
3
1
12
13
R6
U3
1
J6
+5V
1
2
3
100R
GND
PE1
10
8
6
4
2
J2
R1
Header 14X2
JTAG
GND
GND
GND
GND
+5V
GND
GND
GND
LED_ACTIV
LED_DF
#RD
PD6
PD4
PD2
PD0
PB6
PB4
PB2
PB0
3
1
3
5
7
9
2
4
6
8
10
12
14
16
18
20
22
24
26
28
1
TCK ADC4
TDO ADC6
TMS ADC5
+5V
TDI ADC7
1
3
5
7
9
11
13
15
17
19
21
23
25
27
+5V
R2
2k2
J7
Rev:
File:
Date: 28-06-2004
Sheet 1 of 4
1.00
+5V
+
GND
16
C1C2+
T1 OUT
T2 OUT
R1 IN
R2 IN
MAX232
GND
MH5
GND
GND
GND
GND
MH3
MH6
C4
100n
3
4
+ C5
100n
C214
7
13
8
MH4
1
+
V-
GND
GND
C1+
C7
100n
+
5
9
4
8
3
7
2
6
1
V+
T1 IN
T2 IN
R1 OUT
R2 OUT
PE1 (TXD0)
JP3
5
PE2
RS232_TXD
RS232_CTS
RS232_RXD
RS232_RTS
11
10
12
9
JP4
PE0 (RXD0)
JP2
PE3
JP5
15
GND
GND
VCC
2
6
J4
RS-232
U1
MH2
C1
100n
+5V
+5V
C6
100n
MH1
GND
DB9F
AC1
2
4
AC2
1
3
JP1
U2
TPIN+
TPOUT-
11
5
12
4
13
3
14
1
AC1
+12V
C10
10n
C9
10n
ZASILANIE
1
2
3
2
J3
4
BR1
RB152
+
-
+
C8
470u/25V
C13
100n
C2
10n/2kV
C3
10n/2kV
GND
LAN_GND
LAN_GND
LAN_GND
J14
SW1
Vin Vout
GND
U4
7805
16
JP6
GND
1N4148
1
8
7
6
5
4
3
2
1
15
20F001N
D2
3
POWER
AC2
J5 RJ-45
10
6
2
TPOUT+
9
LAN
7
XMIT
TPIN-
RCV
8
+5V
C12
100n
+
GND
GND
1
2
J1
C11
47u/16V
+5V
+5V
1
2
GND
http://www.propox.com
email: [email protected]
Title: MMnetEVB
Size:
Date: 28-06-2004
16
Rev:
File:
Sheet 2 of 4
1.00