stm32h7disco-i2s-baremetal(in stm32h7-i2s-record-play-wav-master)

[BRobe.3]

I try for the first time to use audio , on my stm32h747i-DISCO board.

I have 2 questions

1) the build CM7 is showing the following error

Description Resource Path Location Type

'Mode' undeclared (first use in this function) stm32h7xx_hal_msp.c /stm32h7disco-i2s-baremetal_CM7/Core/Src line 179 C/C++ Problem

in

/* USER CODE END I2S1_Init 1 */

hi2s1.State = HAL_I2S_STATE_RESET;

hi2s1.Instance = SPI1;

hi2s1.Init.Mode = Mode;

hi2s1.Init.Standard = I2S_STANDARD_PHILIPS;

hi2s1.Init.DataFormat = I2S_DATAFORMAT_16B_EXTENDED;

hi2s1.Init.MCLKOutput = I2S_MCLKOUTPUT_DISABLE;

hi2s1.Init.AudioFreq = I2S_AUDIOFREQ_11K;

hi2s1.Init.CPOL = I2S_CPOL_LOW;

hi2s1.Init.FirstBit = I2S_FIRSTBIT_MSB;

hi2s1.Init.WSInversion = I2S_WS_INVERSION_DISABLE;

hi2s1.Init.Data24BitAlignment = I2S_DATA_24BIT_ALIGNMENT_RIGHT;

hi2s1.Init.MasterKeepIOState = I2S_MASTER_KEEP_IO_STATE_DISABLE;

if (HAL_I2S_Init(&hi2s1, Mode) != HAL_OK) //This Mode is the error

{

Error_Handler();

}

/* USER CODE BEGIN I2S1_Init 2 */

/* USER CODE END I2S1_Init 2 */

}

Even after regenerating the code, the error is still here

1. I imagine the input is Jack microphone aud the output is Jack speaker.

The notice says I2S pins

- PA4: i2s1_ws

- PA6: i2s1_sdi :Digital pin5 of the arduino connector below the Disco Module.

- PB3: i2s1_ck

- PD7: i2s1_sdo I am not usual of I2S, may be the output is I2S1_SDO pin (But, I don't see any access to this pin).

[Peter BENSCH · Accepted solution]

You are probably referring to Github project of gokmez?

Have you already contacted him and asked him about it?

Regards
/Peter

[SofLit]

Hello @BRobe.3 ,

---

@BRobe.3 wrote:

I try for the first time to use audio , on my stm32h747i-DISCO board.

---

Which Demo? you need always to provide details from the beginning to prevent confusions ..

Also, please use </> button to share your code. Refer to the tips on how to post a thread.

Thank you.

[BRobe.3]

Thanks for your answer. Yes it is https://github.com/gokmez/stm32h7-i2s-record-play-wav.

I will try contact him

Best regards

[BRobe.3]

Thanks for your answer

It is : https://github.com/gokmez/stm32h7-i2s-record-play-wav for   stm32h747i-DISCO board.

Best Regards

[BRobe.3]

Hello Peter,

Unfortunatly, I didn't find any way to contact Mr Gokmez.

Do you have a contact ? It would be great to find a solution as it is the only sound example for the stm32h7disco board.

Best Regards

[Peter BENSCH]

Gokmez is one of millions of users of the STM32 MCUs. I could also just try to reach him via GitHub, as I also only found the repository with my favourite search engine.