About I3C ENTDAA ,How to do End DAA procedure waveform?

[CLHUANG]

hi

I do the ENTDAA protocol use this code

if (HAL_I3C_Ctrl_DynAddrAssign_IT(&hi3c1, 0) != HAL_OK)

{

/* Error_Handler() function is called when error occurs. */

Error_Handler();

}

 

In below picture , I get the ENTDAA Protocol, but After protocol there should be repect start and do End DAA procedure waveform. It always keep  ,pull up high after a few seconds.(ref three pic.

How can I do it?End DAA procedure waveform

Below picture is all protocol , no End DAA procedure waveform

 

 

 

 

 

[Foued_KH]

Hello @CLHUANG 

I suggest you this code : 

 

 /* Assign dynamic address processus */
 do
 {
 status = HAL_I3C_Ctrl_DynAddrAssign(&hi3c1, &payload[1], I3C_RSTDAA_THEN_ENTDAA, 5000);
 if (status == HAL_BUSY)
 {
 HAL_I3C_Ctrl_SetDynAddr(&hi3c1, DynAddr);
 }
 TargetDesc1.TARGET_BCR_DCR_PID = (uint64_t) payload; 
 }while (status == HAL_BUSY);

 

Foued

[CLHUANG]

Dear Foued:

How to define payload?

 

[Foued_KH]

/* Buffer that contain payload data, mean PID, BCR, DCR */
uint64_t TargetPayload[64];

[Foued_KH]

Just you can set your own dynamic address : uint8_t Dynaddr = 0x32;

Foued

[CLHUANG]

Dear Foued

why  48-bit provisioned ID have two data?

my code 

 

 uint64_t status;
 uint64_t TargetPayload[64];
 do
 {
		status = HAL_I3C_Ctrl_DynAddrAssign(&hi3c1, &TargetPayload[1], I3C_ONLY_ENTDAA, 5000);
		if (status == HAL_BUSY)
		{
			HAL_I3C_Ctrl_SetDynAddr(&hi3c1, 0x32);
		}
			TargetDesc1.TARGET_BCR_DCR_PID = (uint64_t) TargetPayload;


 }while (status == HAL_BUSY);

 

 

I want same as this sample one => https://www.st.com/resource/en/application_note/an5879-introduction-to-i3c-for-stm32h5-series-mcu-stmicroelectronics.pdf

 

[Foued_KH]

Hello @CLHUANG , 

You have this waveform because on the IKS01A3 shield you have 2 I3C sensors LSM6DSO and LPS22HH,
So you need to remove jumpers and use one (LSM6DSO for example :  JP2 ) to get the same waveform as the Application Note.

Please check the 9.3 Hardware and software settings section on the AN.

Foued

[CLHUANG]

I still can't make a protocol with a red circle

[Foued_KH]

Could you please provide a screenshot about your issue ?

Foued

[Foued_KH]

The ENTDAA  not supported with the LPS22HH ( see datasheet ).
You need to use another way using SETDASA .

Foued

[CLHUANG]

Dear Foued

Now I get it!  Thank you very much.