Name: QT251 (16 Serial Port 4 Network Port)
Brand: Hanshuntong Smart Technology Co., Ltd. (Hanshuntong Smart Technology Co., Ltd.)
Availability: InStock

Wuhan, Donghu High-tech District, 799 Gaoxin Avenue, Zhongjian Guang Valley Star Building I1, 13th floor

QT251 Product Specifications

A. Product overview

QT251N ee 32-bit MPU ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta ye kɔmpiuta. CPU ye ARMCortex-A8 ye cɔl system hierarchy chip, NEON Single Command Stream Majority Stream (SIMD) co-processing, 256KBL2 cache ye cɔl error correction code (ECC), ye cɔl frequency ye cɔl 1GHz. Sisitɛm ye RS458 / RS232 communication, wired network communication, CAN bus, ku ye optional wireless GPRS communication, with small size, low power consumption, high efficiency features, suitable for power concentrators, HMI、 Industrial control, gateway, etc. ye looi.

II. Karakteristik produk

1. Kä ye hardware looi

AM355xCPU:

32bitARMCorte-A8 architecture, main frequency 800MHz, 1.6MIPS/MHz, maximum main frequency 1GHz

32KBI-cache, 32KBD-cache, NeonSIMD coprocessor

Memory:

512MbyteDDR3, 64KB RAM ye looi

Flash:

512MbyteNANDFlash， 8Gbyte ye dɛmɛ

NAND, NOR, SRAM, ku FLASH

Kuen:

PRNG/DES/3DES/AES/SHA/HMAC encryption, up to 256 bit encryption mode

Dog keeper:

WDT cï gɔ̈ɔ̈r, kaam ye tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u

RTC:

High precision real time clock, built-in battery powered

Debug port:

1 serial port ye system console port ye. Porter rate: 115200, data bit: 8, stop bit: 1, check bit: none, flow control: none

RS485/RS232:

8 channel independent RS485 communication, internal isolation protection design

8 channel RS485/RS232 min time multiplex communication, can be used according to actual selection, internal all isolation protection design

B code ye gam:

1 channel RS485 receiver, dedicated to B code pairing when connected, automatic pairing when connected. 1 channel RS485 receiver, dedicated to B code pairing when connected. 1 channel RS485 receiver, dedicated to B code pairing when connected.

CAN:

1 CAN communication, built-in isolation protection design

Switch output input:

2-way dual knife dual throw relay output

2 waya switch volume input

Network:

4way 10M/100M adaptive industrial Ethernet, standard RJ45 interface

15KVTVS gël, gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël ë gël

Wireless function (optional) ye looi:

Radio frequency band 800/900/1800/1900MHz (optional 2/3/4G)

WIFI: AP wala AP

1 SIM kaar, 1 antenna kaar

Lɔ̈ɔ̈i de kɔc: Lɔ̈ɔ̈i de kɔc cï gam

SDCARD:

SD/MMC kaar tɔ̈u

Power:

Voltage: 220V, ye AC, DC kony

Kuɛl ye looi: <12W

Karakteristika mekanik

Käke metal

Dɔɔr: 1U

Gɛɛl: IP63

Tʋʋm

Luɔi tɛmɛ: -40 ℃ ~ + 85 ℃

Luɔi: 5% ~ 95%

2. Software Features

2.1 Sistɛm

QT251N ee Linux operating system TIAM335x, version 3.2.0. Application ye POSIX standard wala UNIX platform ye gam. Në hardware ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈k ye kɛ̈

QT251N ye software ye looi në 3 ye: Bootloader, Linux kernel, ku

rootfs。 Bootloader ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan Linux kernel ee tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë rootfs ye tɛ̈n yenë kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ

2.2 Luɔi kɛɛliw

Kɔmpaniɛ ye Ubuntu 10.04 ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye. Yɔɔd raan: work

Lɛ̈k: 123456

编译命令： arm-linux-gnueabihf-gcc-ofilenamefilename. c

Ajuiɛɛr: arm-linux-gnueabihf-4.7.tar.gz

Tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ

Na cɔl /opt/arm-linux-gnu, na cɔl environment variable:

exportPATH=$PATH:/opt/arm-linux-gnu/bin

Adres de download de compilation chain:

https://pan.baidu.com/s/1nv19D1Z#list/path=%2FWORK%2FCortex A8

2.3 Lɔ̈ɔ̈m

IP: eth0: 192.168.1.177eth1: 192.168.2.177eth2: 192.168.3.177eth3: 192.168.4.177

Lɛ̈k: root Lɛ̈k: root

3. Interface definition

1.Power Interface

2.RS485 interface

Lëk: RS485 channel 9-16 ye RS232 channel 9-16 ye multiplex channel ye.

3.RS232, CAN interface

Lëk: RS232 9-16 channel ye RS485 9-16 channel ye multiplex channel ye. Kä ye kek looi ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye kek ye

4. Switch volume output input

Note: Relay output ye double knife double throw switch, cït mɛn:

5. Intɛrnɛt

6.Debugging interface

Debug port configuration: Porter rate: 115200, data bit: 8, stop bit: 1, check bit: none, flow control: none

7.RS485/RS232 driver interface

A lëu ba driver interfaces tïŋ në /dev directory de manager.

4. Driver misal

A tɔŋ script file ye tɛ̈n yenë yen tɔ̈ɔ̈u thïn në /program directory de system, ka tɛ̈n yenë yen tɛ̈n yenë yen tɛ̈n yenë yen tɔ̈ɔ̈u thïn. O ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n Wɛ̈t cï gɔ̈t thïn, tïŋ appendix.

Appendix:

1, tɛ̈n yenë startup.sh tɔ̈u thïn:

#!/bin/sh

ln-sf/dev/ttyCH0/dev/ttyS1

ln-sf/dev/ttyCH1/dev/ttyS2

ln-sf/dev/ttyCH2/dev/ttyS3

ln-sf/dev/ttyCH3/dev/ttyS4

ln-sf/dev/ttyCH4/dev/ttyS5

ln-sf/dev/ttyCH5/dev/ttyS6

ln-sf/dev/ttyCH6/dev/ttyS7

ln-sf/dev/ttyCH7/dev/ttyS8

ln-sf/dev/ttyCH8/dev/ttyS9

ln-sf/dev/ttyCH9/dev/ttyS10

ln-sf/dev/ttyCH10/dev/ttyS11

ln-sf/dev/ttyCH11/dev/ttyS12

ln-sf/dev/ttyCH12/dev/ttyS13

ln-sf/dev/ttyCH13/dev/ttyS14

ln-sf/dev/ttyCH14/dev/ttyS15

ln-sf/dev/ttyCH15/dev/ttyS16

ln-sf/dev/ttyO1/dev/ttyS17

iplinksetcan0typecanbitrate100000

ifconfigcan0up

2、serial.c file content:

#include#include

#include

#definemax_buffer_size100/*buffersize*/

/*********************************/intfd1;

intflag_close;

intopen_serial ((intk,int*fd)

{

intsfd=-1; charstr[100];

sprintf ((str,"/dev/ttyS%d",k); printf("open%s/n",str);

sfd=open ((str,O_RDWR<unk>O_NOCTTY<unk>O_NONBLOCK); if ((sfd==-1) {

perror ((str); return-1;

}

ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye

*fd=sfd; return0;

}

/******************************************************************/intmain ((intargc,char*argv[])

{

time_ttNow,tOld; intport;

char

sbuf[]={"12345678901234567890123456789012345678901234567890/n"}; /* Lɔ̈k

Data ye tuɔɔk*/

charsbufrec[256]={0};

intsfd,retv,i,ncount=0,mcount=0; structtermiosopt;

intlength=sizeof ((sbuf);

/*****************************************************************

**/

if ((argc<2)

{

printf (("inputerro:serial<1~4>/n"); return0;

}

**/

port=atoi ((argv[1]); open_serial ((port, &fd1);

/*****************************************************************

printf (("readyforsendingdata.../n"); tcgetattr ((fd1,&opt); cfmakeraw ((&opt);

/*****************************************************************

cfsetispeed(&opt,B9600); /* Lɔ̈ɔ̈m ë 9600bps*/cfsetospeed (&opt,B9600);

/*******************************************************tcsetattr ((fd1,TCSANOW,&opt);

while ((mcount<5)

{

retv=write(fd1,sbuf,length); /*Lɔ̈k data*/if(retv==-1) {

//perror("write"); printf (("writeerror/n");

}

ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye

printf (("thenumberofcharsentis%d/n",retv);

}

ncount=0;

printf (("readyforreceivingdata.../n");

thaa ((&tOld); tNow=tOld; ncount=0;

while((((tNow-tOld) <2))/*设置接收超时*/

{

thaa (&tNow); retv=read ((fd2,&sbufrec[0],1); if ((retv==-1) {

//perror (("kuɛn");

//printf("errorread/n");

//printf("tOld=%d;tNow=%d/n",tOld,tNow);

}

ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye

printf (("%02x",sbufrec[0]); ncount+=1;

}

mcount+=1; printf (("/n");

}

flag_close=close ((fd1);

if(flag_close==-1) /*关闭口端口*/printf("ClosetheDevice1failur!/n");

return0;

}