FIGURE 14: AUDIO AND GPIO INTERFACE.................................................................................... 20
FIGURE 15: EVB AND ACCESSORY EQUIPMENT ......................................................................... 21
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SCOPE
This document give the usage of SIM5218 EVB, user can get useful information about the
SIM5218 EVB quickly through this document.
The Debug board is designed for custom to design their applications by using the 3G module
SIM5218 easily.
All the functions of the SIM5218 can be used by this board. One can use UART, USB interface to
communicate with the SIM5218, and can design their camera phone by SIM5218. There is one
UART interface, one USB 2.0 interface, one SIM card interface, one T-FLASH card interface,
three camera interfaces, and four audio interfaces on the board and expand I/O interfaces.
One can connect the UART and the USB interface to a computer directly.
Key features
FeatureImplementation
Power supply 1: DC 6.0V~9.0V
2: 3.6V~4.2V at J19
3: USB 5.0V power supply
functions UART interface
USB2.0 interface
SIMCARD interface
TFLASH interface
Three sensor interface
IIC interface
Audio/ADC interface
Onkey/Resetkey/Intkey
RF Control switch/UART Control switch
Expanded I/O interface
This document is subject to change without notice at any time.
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1 SIM5218 EVB
Figure 1: EVB view
A: SIM5218 module interface
B: headset interface
C: USB interface
D: USB power DC-DC
E: GPIO led
F: UART interface for AT command transmitting, data exchanging
G: DC power in
H: RF control switch
I: Serial port shutdown switch
J: Camera interface
K: IIC expand IO interface
L: headset interface
M: Audio & GPIO test interface
N: Power on/off of SIM5218
O: RESET key
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P: GPIO0 key
Q: Sim5210 module interface
R: DC-DC LM317
S: Power select jumper
T: Capacity
U: RS232 chip
V: SD & SIM card interface
All hardware interfaces that connect SIM5218 to the customers’ cellular application platform are
through a 70-pin 0.5mm pitch board-to-board connector. Sub-interfaces included in this
board-to-board connector are described in detail in following chapters.
Figure 2: EVB Mark view
No Name Description
1 J1 70PIN B to B connector, connect to SIM5210 module
2 J2 RGB sensor connector(24pin), An OV2640 2.0M sensor can be used
3 J3 Extern DC input connector
4 J4 No use
5 J5 YUV sensor connector(34pin)
6 J6 USB connector
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7 J7 DC-DC out test point, connect this pin to J19 when use a external
DC power supply, you can use a 3.6V~4.2V DC supply to J19
when you not use a external DC supply
8 J8 70PIN B to B connector, connect to SIM5218 module
9 J9 Audio interface connector, MIC, receiver, speaker and line in are in
this connector, also the Phone on and a GPIO pin are in this
connector.
10 J10 USIM and T-FLASH card holder.
11 J11 DB9 UART interface. This can be connect to a PC directly
12 J12 LDO out test point, USB power source, connect to USB with the J19
together.
13 J13 IIC extend IO connector
14 J14 RGB sensor connector(24pin), An OV7670 0.3M sensor can be used
15 J15 no use
16 J16 RF control : Flight Mode switch
17 J17 Connect to DB9 connector DSR of J11
18 J18 Audio jack, for headset use.
19 J19 VABT input, if you don’t use the DC-DC circuit, you can supply a
3.5V~4.3V DC supply to this pin directly
20 J20 UART on/off switch
21 J21 RS232 Level shift IC test point
22 J22 no use
23 J23 no use
24 J24 Headphone interface
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2 EVB accessory
A: antenna
B: antenna transmit line
C: headset
D: 6V DC source adapter
E: serial port line
Figure 3: EVB accessory
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3 Accessory Interface
3.1 Power Interface
Figure 4: Power Interface
If using connector 1 to power on, the connector 2 should be connected.
J7 is the DC-DC out, J19 (3.8V) is connected to J7 through a jump, if one want to use a battery to
supply the circuit, the jump can be removed and connect the battery + to J19.
This board could be powered by USB bus. You should connect the USB pin. J12 is the USB
power out, if you want to use USB VBUS to power up the module, please connect J12 with J19
and disconnect J7.
Pin Signal I/O Description
1 Adapter input I 6V/2A DC source input
2 Adapter input I 3.8V/2A DC source input
3 USB power input I 3.8V/0.5A DC source input
4 VBat I DC source input
NOTE: when you use USB power, be sure that the resistant of the USB cable line MUST not be
too big, otherwise the voltage on J19 will be pulled down and the module may be shutdown
automatically.
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3.2 Audio Interface
Figure 5: Audio Interface
J18 is the headset interface. J24 is the handset interface.
NOTE: The MIC’s polarity must be correct.
Headset interface:
Pin Signal I/O Description
1 GND Ground
2 HEADSET_MIC+ I Headset microphone input
3 HPH_L O Negative microphone output
4 HPH_R O Positive microphone output
Earphone interface:
Pin Signal Input/Output Description
5 MIC1P I Positive microphone input
6 EAR1Q_P O Positive receiver output
7 EAR1Q_N O Negative receiver output
8 MIC1N I Negative microphone input
Speaker interface:
Please refer Figure 14. Pin 1 and Pin 5 is the SPK_M and SPK_P.
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3.3 SIM card and SD card interface
Figure 6: SIM/SD card interface
J3 is a two connector in one package. The upstairs is SIMCARD holder, and the downstairs is
T-FLASH card holder.
:
NOTE
the Pin No isn’t in sequence, detail description is in follow table.
A---SD card socket
Pin Signal Input/Output Description
V_USIM
1
O
USIM Card Power output automatic
output on USIM mode,one is
3.0V±10%, another is 1.8V±10%.
Current is about 10mA.
2 USIM_RESET O USIM Card Reset
3 USIM_CLK O USIM Card Clock
4 GND Ground
5 SIM_VPP O VREG_USIM
6 USIM_DATA I/O USIM Card data I/O
B---SIM card socket
Pin Signal Input/Output Description
7 SD-DATA2 I/O Data line 2
8 SD-DATA3 I/O Data line 3
9 SD-CMD O Command line
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10 SD-VDD O VDD
11 SD-CLK O Clock line
12 GND Ground
13 SD-DATA0 I/O Data line 0
14 SD-DATA1 I/O Data line 1
15 SW1 NC
16 SW2 NC
3.4 Antenna Interface
Figure 7: Antenna Hole
1---this is an antenna hole on the EVB board, the antenna connector is on the main board –
SIM5218 module.
This is mainly used for SIM5210.
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3.5 RS232 Interface
Figure 8: Serial Port
J11 is 9 PINs standard RS232 UART interface. It can be connected to a PC directly
Serial Interface:
Pin Signal I/O Description
1 DCD O Data carrier detection
2 TXD O Transmit data
3 RXD I Receive data
4 DTR I Data Terminal Ready
5 GND Ground
6 NC
7 RTS I Request to Send
8 CTS O Clear to Send
9 RI O Ring Indicator
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3.6 Operating Status LED
Figure 9: StatusLED
Pin Signal I/O Description
1 ACC_DETECT/GPIO0 O LED indicator
Working state of status LED as list:
State Module function
Off Module is not running
On
800ms On/ Off
200ms On/ Off
Pin Signal I/O Description
2 GPIO5 O LED indicator
Module is running, or call is connected
Module find the network and registered
GPRS/WCDMA communication
3 GPIO3 O LED indicator
4 IIC_LED/IIC_IO0 O LED indicator
5 T-FLASH_LED/IIC_IO1 O LED indicator
6 CAMERA_LED/IIC_IO4 O LED indicator
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3.7 Camera interface
Figure 10: Camera Interface
Camera interface A: J14 socket has 24 Pin,
this 24PIN B to B socket is used to connect a RGB
sensor, the socket is made by HRS.
Pin Signal I/O Description
1
2 GND
NC
Ground/DGND
3 IIC_SDA I/O IIC data line
4 VDD2.5V
VDD/ AVDD
5 IIC_SCL I IIC clock line
6 CAMIF_RESET O Reset signal
7 CAMIF_VSYNC O Vertical synchronize
8 CAMIF_STDBY O Standby signal
9 CAMIF_HSYNC O Horizon synchronize
10 VDD1.3V
11 VDD2.8V
VDD/DVDD
VDD/ IOVDD
12 CAMIF_D9 I/O Camera data line 9
13 CAMIF_P0 O Main clock
14 CAMIF_D8 I/O Camera data line 8
15 GND Ground
16 CAMIF_D7 I/O Camera data line 7
17 CAMIF_PCLK I Pixel clock
18 CAMIF_D6 I/O Camera data line 6
19 CAMIF_D2 I/O Camera data line 2
20 CAMIF_D5 I/O Camera data line 5
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21 CAMIF_D3 I/O Camera data line 3
22 CAMIF_D4 I/O Camera data line 4
23 CAMIF_D1 I/O Camera data line 1
24 CAMIF_D0 I/O Camera data line 0
Camera interface B: J5 socket has 34 Pins, J5 is a 34pin B to B connector which produced by
NAIS, the PART NO is AXK834145WG.
Pin Signal I/O Description
1 GND Ground/ DGND
2 CAMIF_PCLK I Pixel clock
3-4,6-7
NC
5 CAMIF_RESET O Reset signal
8 IIC_SDA I/O IIC data line
9 IIC_SCL I IIC clock line
10-12
NC
13 CAMIF_STDBY O Standby signal
14
15 VDD2.8V
16 VDD2.5V
17 VDD1.8V
NC
VDD/ IOVDD
VDD/ AVDD
VDD/ DVDD
18 CAMIF_VSYNC O Vertical synchronize
19 CAMIF_HSYNC O Horizon synchronize
20 GND
Ground/ AGND
21 CAMIF_P0 O Main clock
22
NC
23 CAMIF_D2 I/O Camera data line 2
24 CAMIF_D3 I/O Camera data line 3
25 CAMIF_D4 I/O Camera data line 4
26 CAMIF_D5 I/O Camera data line 5
27 CAMIF_D6 I/O Camera data line 6
28 CAMIF_D7 I/O Camera data line 7
29 CAMIF_D8 I/O Camera data line 8
30 CAMIF_D9 I/O Camera data line 9
31-34
NC
Camera interface C: J2 socket has 24 Pin,
this 24PIN B to B socket is used to connect a YUV
sensor, and the socket is made by HRS. This is designed to connect a sensor with 0.3M resolution
for our platform using the high 8 data lines for 0.3M sensor only.
Pin Signal I/O Description
1
NC
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2 GND
Ground
3 IIC_SDA I/O IIC data line
4 VDD2.5V
VDD/AVDD
5 IIC_SCL I IIC clock line
6 CAMIF_RESET O Reset signal
7 CAMIF_VSYNC O Vertical synchronize
8 CAMIF_STDBY O Standby signal
9 CAMIF_HSYNC O Horizon synchronize
10 VDD1.3V
11 VDD2.8V
VDD/DVDD
VDD/IOVDD
12 CAMIF_D9 I/O Camera data line 9
13 CAMIF_P0 O Main clock
14 CAMIF_D8 I/O Camera data line 8
15 GND Ground/AGND
16 CAMIF_D7 I/O Camera data line 7
17 CAMIF_PCLK I Pixel clock
18 CAMIF_D6 I/O Camera data line 6
19 CAMIF_D2 I/O Camera data line 2
20 CAMIF_D5 I/O Camera data line 5
21 CAMIF_D3 I/O Camera data line 3
22 CAMIF_D4 I/O Camera data line 4
23 CAMIF_D1 I/O NC
24 CAMIF_D0 I/O NC
3.8 USB interface
Figure 11: USB Interface
USB interface: It is a normal 4Pin USB connector.
Pin Signal I/ODescription
1 USB_VBUS I 5V
2 USB_DM I/OD+ line
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3 USB_ DP I/OD- line
4 GND
3.9 Switch interface
Ground
Figure 12: Switch Interface
Pin Signal I/ODescription
1 ONLINE I 3V UART
2 GPIO4 I 2.5V RF switch
3 SHUTDOWN I 3V UART
4 PWR_ON I Power on the module
5 RESET I Reset the module
6 GPIO0 I A key for interrupt
Input Port with interrupt,
Use AT Command to set interrupt
triggering mechanism & polarity .
4 PWR_ON I Power On/off
6
14
GND
GPIO5
O
Ground
General Purpose Output Port (default
value: Low Level)
12
GPIO4
I
RF Control Interrupt : Flight Mode
Switch
10
GPIO3
O
General Purpose Output Port (default
value: Low Level)
8
GPIO2
I
General Purpose Input Port without
interrupt.
16
GPIO1
O
General Purpose Output Port without
interrupt. Status Led indication.
18 EAR1Q_N O Negative receiver output
20 EAR1Q_P O Positive receiver output
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4 EVB and accessory equipment
At normal circumstance, the EVB and its accessory are equipped as the Figure below.
Figure 15: EVB and accessory equipment
5 Illustration
5.1 Running
(1) Connect the SIM5218 module to the 70pins connector on SIM5218 EVB, inserting 6V direct
current source adapter, you should connect J7 and J19 pin on the board;
(2) Insert a valued SIM card and check the antenna is connected;
(3) Press the on/off switch for about 1 second, and then SIM5218 module begins running.
You can see the light on the EVB flashing at a certain frequency. By the state, you can judge
whether the EVB and SIM5218 can run or not. No function and test can be executed when we
have not connected necessary accessories.
NOTE: This EVB board supports USB power on when you connect J12 and J19 together.
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5.2 Connecting Net and calling
(1) Connect the serial port line to the serial port, open the HyperTerminal (AT command windows)
on your Personal computer, the location of the HyperTerminal in windows2000 is
START→accessory→communication→HyperTerminal. Set correct Baud Rate and COM number.
The Baud Rate of SIM5218 is 115200, and the COM number based on which USB port your serial
port line insert in, you should select such as COM1 or COM2 etc.
(2) Connect the antenna to the SIM5218 module using an antenna transmit line, insert SIM card
into the SIM card interface, and insert headphones or headset into its interface.
(3) Act on the step of running which mentioned above, power on the system, typing the AT
command in the HyperTerminal, and then the SIM5218 module will execute its corresponding
function.
(4) If you want to use USB port, you should setup the drivers for the USB modem, after that, you
will see 3 virtual serial ports in device list in windows system. Now you can connect the device
following step 1~3. The performance of the virtual serial port is as same as the serial port.
5.3 Downloading
Connect the USB port line to the USB port, connect the direct current source adapter, run the
download program, select the Diag port on USB interface (such as COM3,COM4,etc), and choose
the correct image, press the start button on the program to enter downloading mode.
NOTE: You should enter download mode using AT command AT+CSWITCHTEST=1. Please
refer ATC specification for more information.
5.4 Turns off
Press the PWRKEY for about 1 second, SIM5218 module will be turned off.
NOTE: If you use USB to power on the module, just disconnect the USB cable to turn off.