Hello PeterR, First, thank you for your quick reply ! I also believe, that hardware only solution is not possible, but I wanted to ask about that before burying the idea :-) Like you mentioned, on core1 only the sampling process is executed, and on core0 all other things are executed (sending data o...

Hello everbody, Firstly, I hope you all are good within the Covid-19 time... I want to read out an external analog digital converter (adc) with an esp32. The communication between esp32 and the adc is done by SPI. The adc uses a digital output signal called DRDY to signalize when a sample is ready t...

Hello community, I am realy feeling a little guilty for my increased posts in the last time, but I would really not disturb you if not needed... For the sake of understanding and to help other users in making this issue/question independent of my other posts, I decided to make start a new post with ...

Hey ESP_Sprite, thanks for your help :) . Actually I want to call a function in C which uses with Inline Assembler the s32c1i function for lock and unlock operation of synchronized variables between the high level interrupt on core1 (Producer) and a consumer Task on core0. The C functions for lock a...

Hello, can you please provide an example for calling a C function in main.c from assembly file ? I just tried following code: main.c extern void Test(int a){ printf("Test was called!\n"); } void app_main(){ .. .. ..} assembly file .. .. .section .iram1,"ax" .global xt_highint5 .type xt_highint5,@fun...

Hey ESP_iggr, I just tried to understand the atomic compare and set instruction, but really didn't get it, also I am not sure if this instruction is needed, since in the tcp task I am not changing the content/data, so acting like a consumer on core 0 and consuming the data from the producer sitting ...

Hello ESP_iggr, thanks for reply. They are running in different cores: core0: task_adcbuffeer_send core1: high level interrupt 5 So I have to use the S32C1l instruction for all volatile variables then ? In this case: BufferSelector, SampleCounter and the *Bufs (Pointer Array) Thanks ! best regards, ...

Hello ESP_iggr, 1.) One final thing, i've merged the new topic you have created into the original one. Please post in the same topic while discussing a single issue. First, I want to apologize this :| 2.) slli temp, temp, 4 shifts temp left by 4 bits, which is equivalent to multiplying by 16, not by...

Hello ESP_IGGR, Main Thread: https://esp32.com/viewtopic.php?f=13&t=15213 I cannot find the problem, so I will post my complete assembly interrupt service routine as well as a minimal main.c file. Before posting the codes, I want to explain the setup/idea. My aim is to communicate with an external A...

Hello ESP_iggr, firstly, thank you very much for your help ! You just wrote, that EXCVADDR (Exception Virtual Address) shows me the memory address where the prohibited load occurs. And the PC (Programm Counter) where in the program it is occurs. I just disassembled my code, but I cannot find the add...