Hi-Link HLK-RM08S Manuale utente
SHENZHEN HI-LINK ELECTRONIC CO.,LTD
HLK-RM08S USER MANUAL
Version：V1.0 Issuing date：2017-2-17 copy right@Hi-Link
CONTENTS
1. BRIEF INTRODUCTION............................................................................................................................................ 1
1.1. BASIC PARAMETERS.................................................................................................................................... 1
2. BLOCK DIAGRAM...................................................................................................................................................... 2
2.1. TYPICAL APPLICATION..............................................................................................................................3
2.2. SPECIFICATIONS........................................................................................................................................ 4
3. ELECTRICAL CHARACTERISTICS ..........................................................................................................................4
3.1. INPUT VOLTAGE.......................................................................................................................................... 4
3.2. RF CHARECTERISTICS................................................................................................................................ 5
3.2.1. 802.11B 11M.................................................................................................................................. 5
3.2.2. 802.11G 54M.................................................................................................................................. 5
3.2.3. 802.11N MCS7(HT20)....................................................................................................................6
3.2.4. 802.11N_MCS7(HT40)....................................................................................................................6
4. PINS DEFINITION.................................................................................................................................................. 7
4.1. PINS DIFINITION DIAGRAM......................................................................................................................7
4.2. DEFAULT PINS DIFINITION......................................................................................................................8
5. DIMENSIONS.......................................................................................................................................................... 10
1
HLK-RM08S
1. Brief Introduction
HLK-RM08S based on MT7688KN is a low cost and low power consumption IOT module developed by
Hi-Link.The module has rich interfaces and powerful processor and could be widely used in smart devices and
cloud service applications.
1.1. Basic parameters
High data processing ability，MCU frequency 580MHz
150M Mbps
Support 802.11b/g/n mode
20/40 channel bandwidth
Support 802.11v
Support AP,STA and AP,STA mixed
Fifth 10/100M adaptive com port
One USB2.0 host interface
Multiple interfaces SPI/SD-XC/eMMC
Rich peripheral interfaces，SPI,I2C,I2S,PCM,UART,JTAG,GPIO
Widely used in IOT
Inbuilt powerful PMU
Support 16 Multiple BSSID
Support multiple encryption WEP64/128, TKIP, AES, WPA, WPA2, WAPI
Support QoS，WMM，WMM-PS
2
HLK-RM08S
2. Block diagram
HLK-RM08S Block Diagram
EINT
Ethernet
UART
GPIO
PWM
USB_HOST
SPI
SPIS
I2C
I2S
JTAG
SDXC
MT7688KN
3.3V
40MHz
SPI Flash(32MB)
IPEX Connector
3
HLK-RM08S
2.1. Typical application
HLK-RM08S typical peripheral interfaces diagram
HLK-RM08S
4
HLK-RM08S
2.2. Specification
Item
Parameter
Model
HLK-RM08S
Main Chip
MT7688KN
I-Cache，D-Cache
64KB,32KB
Kernel
MIPS24KEc
Main frequency
580MHz
RAM
64Mb
Flash
32Mb
RF
1T1R 802.11n 2.4GHz
USB2.0
1
UART
2
Temperature
Environmental temperature：-40℃~85℃
Humidity
working：10~95%（noncondensing）
Storage：5~95%（noncondensing）
Size
17.4mm×25.8mm×2.8mm
3. Electrical characteristics
3.1. Input voltage
Name
Function
Min voltage（V）
Typical
voltage（V）
Max Voltage
（V）
VBAT
Supply voltage
3.2
3.3
3.4
I/O
I/O Voltage
3.2
3.3
3.4
5
HLK-RM08S
3.2. RF Characteristics
3.2.1. 802.11b 11M
802.11b Transmit (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Tx Power Level
DQPSK
18
20
22
dBm
Frequency Tolerance
-15
0
15
ppm
Spectral Mask
11MHz→22MHz
40
dBr
＞22MHz
53
dBr
Modulation Accuracy
All Data Rate
15
%
802.11b Receiver (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Min. Input
11Mbps PER<8%
-91.5
-89.5
-87.5
dBm
3.2.2. 802.11g 54M
802.11g Transmit (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Tx Power Level
OFDM
15
17
19
dBm
Frequency Tolerance
-15
0
15
ppm
Modulation Accuracy
All Data Rate
-31
-28
%
802.11g Receiver (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Min. Input
54Mbps PER<10%
-78.0
-76.0
-74.0
dBm
6
HLK-RM08S
3.2.3. 802.11n MCS7(HT20)
802.11n_HT20 Transmit (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Tx Power Level
OFDM
15
17
19
dBm
Frequency Tolerance
-15
0
15
ppm
Modulation Accuracy
All Data Rate
-31
-28
dB
802.11n_HT20 Receiver (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Min. Input
MCS7 PER<10%
-76.5
-74.5
-72.5
dBm
3.2.4. 802.11n_MCS7(HT40)
802.11n_HT40 Transmit (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Tx Power Level
OFDM
15.0
17.0
19.0
dBm
Frequency Tolerance
-15
0
15
ppm
Modulation Accuracy
All Data Rate
-31
-28
dB
802.11n_HT40 Receiver (Conductive)
Item
Condition
Min.
Typ.
Max.
Unit
Frequency Range
Channel 1
Channel 13
Min. Input
MCS7 PER<10%
-76.5
-74.5
-72.5
DBM
7
HLK-RM08S
4. PINS DEFINTION
4.1. Pins definition diagram
HLK-RM08S Default pins definition diagram
8
HLK-RM08S
4.2. Default pins definition
Pin
Name
（ Function
1）
Function 2
Function 3
Function 4
GPIO
Note
1
I2S_DI
PCMDRX
GPIO0
2
I2S_WS
PCMCLK
GPIO2
3
I2S_DO
PCMDTX
GPIO1
4
I2S_CLK
PCMFS
GPIO3
5
SPI_CS1
REF_CLKO
GPIO6
6
SPI_MOSI
GPIO8
7
SPI_CLK
GPIO7
8
SPI_MISO
GPIO9
9
UART_TXD0
GPIO12
Default is serial port
TR
10
UART_RXD0
GPIO13
Default is serial port
TR
11
GPIO0
REF_CLKO
PERST_N
GPIO11
12
MDI_RP_P0
GPIO24
13
MDI_RN_P0
GPIO23
14
MDI_TP_P0
GPIO22
15
MDI_TN_P0
GPIO21
16
MDI_TP_P1
SPIS_CS
PWM_CH0
GPIO14
17
MDI_TN_P1
SPIS_CLK
PWM_CH1
GPIO15
18
MDI_RP_P1
SPIS_MISO
UART_TXD2
GPIO16
19
MDI_RN_P1
SPI_MOSI
UART_RXD2
GPIO17
20
MDI_RP_P2
eMMC_D7
PWM_CH0
GPIO18
21
MDI_RN_P2
eMMC_D6
PWM_CH1
GPIO19
22
MDI_TP_P2
UART_TXD2
eMMC_D5
PWM_CH2
GPIO20
23
MDI_TN_P2
UART_RXD2
eMMC_D4
PWM_CH3
GPIO21
24
MDI_TP_P3
SD_WP
eMMC_WP
GPIO22
25
MDI_TN_P3
SD_CD
eMMC_CD
GPIO23
26
MDI_RP_P3
SD_D1
eMMC_D1
GPIO24
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