topic Re: S32K312 Port 模式修改 in S32K

S32K312 Port 模式修改

yexiaoer — Tue, 19 Aug 2025 09:25:13 GMT

Port 配置如下：默认SPI PCS3 引脚，此模式下无法使用 Dio_WriteChannel （）控制输出，调用 Port_SetPinMode(19,SIUL2_0_PORT49_GPIO); 后，仍然无法用 Dio_WriteChannel （）控制输出，问题在哪？

Re: S32K312 Port 模式修改

VaneB — Tue, 19 Aug 2025 17:18:27 GMT

Hi @yexiaoer

Since the pin has been configured as SPI PCS, its control is handled through the SPI driver. The DIO driver can only modify the state of pins that are configured as GPIO.

If you need to manually control the PCS signal, the best approach is to reconfigure the desired pin as a GPIO, and in the SPI driver settings, change the SpiCsSelection parameter from CS_VIA_PERIPHERAL_ENGINE to CS_VIA_GPIO.

BR, VaneB

Re: S32K312 Port 模式修改

Djuric — Thu, 13 Nov 2025 23:21:59 GMT

Hello @VaneB,
Can you send me S32DS screenshots of how to do this with Lpspi RTD drivers that are not in the AUTOSAR environment?
So, I'm interested in controlling the CS pin independently, like a GPIO pin.

Thank you.

Re: S32K312 Port 模式修改

yexiaoer — Fri, 14 Nov 2025 00:34:03 GMT

try to use Port_SetPinMode(19-1,SIUL2_0_PORT49_GPIO) set the pin as the GPIO mode, but you note the pin number as (19-1) not (19)

Re: S32K312 Port 模式修改

Djuric — Fri, 14 Nov 2025 14:42:32 GMT

Thank you