I am using ESP32-S3-WROOM-1-N8R8 module in our project. As per datasheet, this module have 8 MB of External Flash and 8 MB of external PSRAM. Now, I want to access external PSRAM in my project so I am enabling external PSRAM support from menuconfig. However, I am getting following compilation error....

Dear L-KAYA, Thank you for giving nice explanation. Few question regarding i2s APIs function call. 1) what is the meaning of dma_buf_count = 8 which are passing during driver_install call? Does it mean that DMA will create message queue ( size 8 buffer) of dma_buf_len to read data from i2s ? 2)You s...

Dear L-KAYA, I have the result of your provided code. I did not change anything in your configuration. However, still I am getting missing sample in data. Following are the log message from my device. W (28) bootloader_random: RNG for ESP32-S3 not currently supported W (79) bootloader_random: RNG fo...

Dear L-KAYA, Thank you for your reply. I will try your example and let you know the result soon. Just wanted to say that, In my application, receive buffer size from i2s_read is fixed 1536 bytes(192 samples * 8 bytes per sample = 1536 bytes) with sampling freq of 48000. Could you explain me how did ...

Dear L-KAYA, Nice to meet you again. I am having different problem with I2S now. By giving fix frequency(5k, 10k,15k etc.) sine wave from signal generator, ESP32S3 able to capture data correctly. I can see sine wave in audacity with fix frequency clearly. Now instead of giving fix frequency as input...

Dear L-KAYA, Thanks for supporting on this issue. Finally, Something got works for me. Looks bit confusable but I2S working well now. Here is few questions: Sampling Freq : 48000, DMA buf len = 64, DMA buf cont = 8 , Read data using I2S_read = 64 *8, ch = 2, Sample bit= 32bit ---> Not working Sampli...

Dear E-KAYA, I checked with your given code example. Gave the 5khz sine wave to external ADC, and start sample from ESP32 with 48000 freq. I used ESP32 instead of ESP32-S3 board. But still I am getting noise output data. Please check attachment for your reference. FYI, current setup ADC + ESP32 is w...

Hello Rudi, We are using ESP32-S3-WROOM-1-N8R2 module and that have 2 MB PSRAM. We are using following master branch of ESP-IDF for ESP32-S3 for our development. But When I looked in feature list supported into ESP32-S3 on following link, I understand that PSRAM is not supported yet in ESP-IDF yet. ...

Thank you very much E-KAYA for sending me this details. Now, let me try with your code. Instead of SD card, I am using flash memory to store output data of I2S. Just want to clarify one thing is I am working on following commit id from master branch of ESP-IDF. 220590d599e134d7a5e7f1e683cc4550349ffb...

No worries. Thank you.

For external ADC, I am using following EVM from TI.
https://www.ti.com/tool/PCM1808EVM

If you want other information please let me know.