About W5500 chip send()，recv() Date
Ethernet Chips
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Ethernet Chips
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RE: About W5500 chip send()，recv() Date
by Alan WIZnet ·
No, it doesn’t have to be the same buffer. Maybe the declaration is wrong?
RE: RE: About W5500 chip send()，recv() Date
by Bohu-Tang ·
Hi,Alan
Thanks for your answer.The first picture below shows the function I wrote. In lines 22 and 23 I split buf into recv_buf and send_buf. Lines 60 and 61. I send the data using the send() and recv() functions, respectively.I use wireshark to capture network packets. Turns out the data I sent to the server was correct. But the data the server sent back to me was wrong.Look at the second picture, the third picture, and the fourth picture.
I think it’s because the two BUFs are defined separately. I send data to the server, so recv_buf receives normal data. send_buf has no data, so the numbers in send_buf are random numbers. But I defined the initial value for send_buf as shown in the fifth figure. But using wireshark to look at the data, it is not the array {1,1,1,1} in this diagram.
What I need to do now is for recv_buf to receive the data and send_buf to send another set of data. I don’t know what to do. I would appreciate it if you could solve my confusion.look forward to your good news.
RE: RE: About W5500 chip send()，recv() Date
by Bohu-Tang ·
This is my send function and my receive function.I hope that will be helpful.
RE: About W5500 chip send()，recv() Date
by Bohu-Tang ·
Looking forward to hearing from the staff.
RE: RE: About W5500 chip send()，recv() Date
by louis ·
hello.
Unfortunately, due to company policy, we are unable to support code reviews.
We apologize for the inconvenience, but we hope you’ll take a look at the Loopback example below and fix it.
RE: About W5500 chip send()，recv() Date
by Bohu-Tang ·
Thank you for your reply. I solved the problem yesterday.