I2S audio LINEIN data read

RE: I2S audio LINEIN data read

Sunil vignesh — Wed, 06 Apr 2022 13:28:34 GMT

Hi Einar,

I have solved that problem

uint32_t * p_buffer = (uint32_t *)p_released->p_rx_buffer;

basically this pointer p_buffer return the value with array so the size of i2s buffer size;

like i read the p_buffer as

p_buffer[buffer_size];

RE: I2S audio LINEIN data read

Einar Thorsrud — Mon, 28 Mar 2022 13:06:04 GMT

Unfortunately I do not know the code, nor do I have the HW, and the example is provided as is. But I suggest you debug properly and describe here what you have found. With some luck, some community members may have some experience with this.

RE: I2S audio LINEIN data read

Sunil vignesh — Fri, 25 Mar 2022 14:49:48 GMT

Hi Einar,

Can you help me in reading the i2s line data

or the step that i followed in the i2s data read is correct?

RE: I2S audio LINEIN data read

Einar Thorsrud — Fri, 25 Mar 2022 14:08:34 GMT

I won't be able to digg into this, but you write that "I was stuck in some where" so it seems there is room for more debugging in order to understand what actually happens (what is "stuck" where?). Unfortunately I do not have any more specific advice.

RE: I2S audio LINEIN data read

Sunil vignesh — Thu, 24 Mar 2022 14:30:34 GMT

While debugging ,

when i read this (uint32_t *)p_released->p_rx_buffer;

(uint32_t *)p_released->p_tx_buffer; it gives address of the I2s TX / RX buffer

and when i put *(uint32_t *)p_released->p_rx_buffer; *(uint32_t *)p_released->p_tx_buffer;

it shows me some 32 bit value and it changes according to the wave i given ,as input.

problem i faced is . i have stored the 32 bit values in a buffer and after complete the record . i want to play the audio. so i try to play the audio from that buffer but unfortunately i won't play.

I was stuck in some where

may be way i read / write the i2s is wrong?

RE: I2S audio LINEIN data read

Einar Thorsrud — Thu, 24 Mar 2022 14:24:06 GMT

I unfortunately do not have much input. Have you done any debugging? What have you learned from that?

RE: I2S audio LINEIN data read

Sunil vignesh — Thu, 24 Mar 2022 14:18:20 GMT

Hi Einar. have you check

RE: I2S audio LINEIN data read

Einar Thorsrud — Wed, 23 Mar 2022 12:25:25 GMT

Hi,

I do not have much to say on this unfortunately, as it is a very old and unofficial example. I suggest you convert this thread to public so that the community has a chance to look at it.