BC66 with OpenCPU and problems sending UDP packets

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1

Hi everyone,

I have a lot of problems with del module BC66 (FW: BC66NBR01A10) sending UDP packets with OpenCPU V1.5

I am using the library ql_socket, that it seems to be It is more recommendable than ril_socket.

I think I know which the problem is, but I don’t know to solve it.

I am using the function Ql_SOC_SendTo to send data by UDP, when the IP server is a hostname I have to use the function Ql_IpHelper_GetIPByHostName and everything works fine apparently, but sometimes the function Ql_IpHelper_GetIPByHostName fail, and I don’t know what to manage this error. You can see this ticket: Problems with the fucntion Ql_IpHelper_GetIPByHostName using OpenCPU

So I decided to use a fixed IP instead a hostname in order to avoid using the function Ql_IpHelper_GetIPByHostName, but know It seems to be that the function Ql_SOC_SendTo is executed successfully but the module BC66 isn’t in RCC_CONNECTED mode so the Tx doesn’t occur but I don’t get any error, so I am sure that the UDP Tx fails due to the fact the module is in IDLE.

The question is: ¿How can I make sure that the module is in RCC_CONNECTED state before trying to send an UDP packet?

2

Hello, it is suggested to use AT instruction to inquire before sending data, and make sure that the module is registered on the network before data interaction.

I hope my answer is helpful to you.

1 Like
3

Hi bobby.zhang.

It seems to be there isn’t any way to guarantee at 100% that the device is connected before sending the UDP packet. Or at least I didn’t know how to do it.

Before sending the UDP message I always check the device is register, the attach is ok and that I have an IP. But sometimes sending the UDP packet fails. I always try three times, so it isn’t a problem of loosing packets.

Best regards,
Oscar