Hello Again, i made further tests. As i supposed, it seems a bit like the ESP32 is doing a "full" Wifi-Scan during esp_wifi_connect(), when the specific AP could not be found on a specific channel during Wifi-Fast-Scan. I dont know if this is expected behavior for Wifi-Fast-Scan. The only thing i se...

Hi Folks, its been a while since my last post. In that time i learned a lot about the ESP32. In my oppinion its a amazing device. Ive developed a few applications so far. One of them is a time critical Application which uses WiFi, and works the following steps: - Wake from DeepSleep and Boot-Up - Do...

Good Morning, i want to implement a slow speed pcm slave interface capable of transfering 32bit frames with 8kHz In- and Output at the same time. When i got my ESP32 i tried to (ab)use the I2S interfaces for that. I made more ivestigations Friday. There is my open thread you can find under: http://w...

Hello Folks, at the moment i work on a kind of pcm to uart bridge. There is already a post for making a DIY Interface using the second CPU without scheduler in an infinity loop. http://www.esp32.com/viewtopic.php?f=2&t=764 As long as i dont recieve uart data the transmission on my non standard pcm i...

Hello Again, as i promised, here are the results of my effords in the last days. What i wanted to do is to transfer data from a non standard kind of pcm interface over uart to pcu. Between the pcm interface and the uart is a buffer. With enough speed on the uart i have a comfortable time to serve th...

Hello again, for all who may be interrested. Ive found a solution for my use case. As i described before, i start 2 tasks and pinned one to each cpu core. The first instruction in the Task running on cpu1 is: vTaskEndScheduler (); Thats it! I can see clean waveforms without interruptions (except the...

Good Morning, thank you for your answers! Ive tried to implement my own "cpu1_start"-procedure. It seemed to work until i used the command "gpio_set_level" which worked excatly one time. If i want to set the level to low, the uController resets. I keep investigating on that, maybe i get a solutiion ...

Hello again! Thank you very much for your advice. That helped a lot. What i have done in the main task is: 1) Allocate several Memory-Areas with a Start Pointers. For example char *Buf = pvPortMallocCaps(DATA_BUFFER_SIZE, MALLOC_CAP_8BIT); 2) Defined a Struct Type Containing these Pointers. typedef ...

Hello Folks, i also have a question about using the second core of the ESP32. Iam quite new in bussines, so i have to appologize, if i describe or understood something wrong. I want to run one single task on each CPU-core. The first task executes time critical GPIO-Operations. The second Task perfor...