ESP32 Forum

Hi!
SDK version:ESP-IDF v2.0
Hardware Information:ESP-WROOM-32
Net enviroment:WiFi LAN，only a station and a AP connected(ESP32 as station,PC as AP).
Bug Description(If it is a bug not my mistake):
The UDP protocol is used to transmit data continuously through the WiFi, and if the data is from 0x3FFA_E000~0x3FFF_FFFF (Internal SRAM), the failure rate will be high (failure rate is about 70%).
When sending data from 0x3F40_0000~0x3F7F_FFFF(Cache，MMU), the failure rate is very low (about 2%).
Test Steps:
1.When I define the first address of sent data to 0x3f40000.Determine whether the send failed by the return value of sendto. Number of failures per sixty counts. The failure rate is very low (about 2%).
2.When I define the first address of sent data to 0x3FFA_E000~0x3FFF_FFFF.Determine whether the send failed by the return value of sendto. Number of failures per sixty counts. The failure rate is high (about 70%).
The first address of sent data is printed in log.Code and log are in attachment。Please Check!If you have any ideals,please tell me.
Thanks!
Best wishes!

If this is a bug report, you're probably better off logging an issue on Github. We look at the forums every now and then, but there aren't any good means of tracking a bug here.

ESP_Sprite wrote:If this is a bug report, you're probably better off logging an issue on Github. We look at the forums every now and then, but there aren't any good means of tracking a bug here.

I'm suspecting it's less of a bug and more of a, "WTF?" from them there. (At least that's how I'm reading it...)

I'd typically be less inclined to log a bug until I had some handle that it wasn't just MY setup...a double check my results type of thing.