S32K3 GPIO HIGH-Z

[Chenxu1]

Hi，NXP experts
In S32DS3.5, how do I configure pin to state HIGH-Z?   S32K312+RTD4.0.0
In picture 1 it says can be configured as HIGH-Z，but I can't find the configuration item.

It is configurable in EB（picture 3）.

[ASN7]

For anyone looking on using Siul2_Port_Ip_SetPinDirection to set to Hi-Z, here is how to call the function:

Siul2_Port_Ip_SetPinDirection(PORT, PIN, SIUL2_PORT_HI_Z);


For input variable 1 of the function, which is `Siul2_Port_Ip_PortType * const base`, you need to use the defines mentioned in `Siul2_Port_Ip_Defines.h` and not the ones `Siul2_Port_Ip_Cfg.h`. You can find out what define the Pin you are using belongs to by checking in  `Siul2_Port_Ip_Cfg.h` as shown below:

Now that PTD_H_HALF is known, which is Port D High Half Base, find it in `Siul2_Port_Ip_Defines.h` and use it as the first input argument. 

For input variable 2, you can use the defines mentioned in  `Siul2_Port_Ip_Cfg.h` which is nothing but the Pin Number. 

Once the pin is set to SIUL2_PORT_HI_Z, you do not have to use Siul2_Dio_Ip_WritePin function as it is only used to set the Pin to High or Low and not for SIUL2_PORT_HI_Z.  

 I hope this gives a bit more clarity. 

[VaneB · Accepted solution]

Hi @Chenxu1 

Unlike EB Tresos, S32 ConfigTools does not have the option to set the PortPin Direction to PORT_PIN_HIGH_Z, as this is the default value. If you want to change it, you can use the functions Siul2_Port_Ip_SetPinDirection() or Port_SetPinDirection().

BR, VaneB