RC7620 Can not use FTP

IoT Modules RC76
1

Hi,

I have a question about RC7620.

I want to use AT command to connect FTP

Command is below:

  1. at+kftpcfg=1,“ftp.speed.hinet.net”,“ftp”,“ftp”,21,1
  2. at+kftpcnx=1

but I got error code

+CME ERROR: 921
+KFTP_ERROR: 1,2

I don’t know why. Please help me thanks.

2

did you test in UART without USB connection?

3

Hi @jyijyi ,

Thanks for your reply.

We can not connect to internet by UART.
We check value AT+CSQ but the result is 99.

4

have you checked AT!GSTATUS?

Then are you using Windows or linux for your testing with USB?

5

Hi @jyijyi ,

I checked AT!GSTATUS?

The result is below:

messageImage_1646878558700

6

I tested it by using windows.

7

you can try AT+CFUN=1

8

@jyijyi
螢幕擷取畫面 2022-03-10 104908

I’m Larry’s colleague.
Yes we try at+cfun=1,but still can not connect to internet by UART.

9

what is AT!GSTATUS? after AT+CFUN=1

10

Hi @jyijyi

image
image684×934 30 KB

Now situation.

11

I don’t see problem with UART and without USB connection:

AT+KCNXCFG=1,“GPRS”,“smartone”,"",""
OK

at+kftpcfg=1,“ftp.speed.hinet.net”,“ftp”,“ftp”,21,1

+KFTPCFG: 1

OK

+KCNX_IND: 1,4,1

+KCNX_IND: 1,1,0

+KFTP_IND: 1,1

12

Hi @jyijyi

I try the same command but respond +CME ERROR: 3.
image

13

seems you need to type manually for character “”

14

Hi @jyijyi

image
image601×599 11.1 KB

I try again.Still have some problem.

15

did you enter

AT+KCNXCFG=1,“GPRS”,“APN”,"",""

16

Hi @jyijyi ,

We use AT+KCNXCFG=1,“GPRS”,“internet”,"","" it looks fine.

But we use AT+KFTPCNX=1 then got the result is 911.

So what should I do for download or upload test file ?

And other question How can I query ftp server ?

17

no problem is found here
is it happening on other network?

18

Hi @jyijyi

We only have this network. We can use this network to connect internaet on Windows.
image

19

you can see here:

20

Hi @jyijyi

Confirmed baud rate is 115200 but still error.