S32KのトピックDS ConfigTool - Port PCR ID

DS ConfigTool - Port PCR ID

speed999 — Mon, 16 Jun 2025 10:03:47 GMT

Hello NXP team

One question for pin PCR id. For the S32K144 PWM example project, pin22 - PTS15 is configured as FTM0_CH0 muxing mode. But in port_cfg.h, FTM0_CH0 can be enabled for three port ID - 44, 64, 111. Why is 111 the correct number? How can pin 22 be mapped to port PCR ID 111 in the port config setting of peripheral ? (I chose 44, 64 while some error is reported and Port attribute is not correct)

#define PORT111_FTM0_CH0 (PORT_ALT2_FUNC_MODE)

Re: DS ConfigTool - Port PCR ID

VaneB — Mon, 16 Jun 2025 17:54:54 GMT

Hi @speed999

The "PortPin PCR" is a numeric value representing the Port Configuration Register. It can be calculated using the following formula:

PortPin Pcr = PinId + (PortId × 32)

Where:

PortId is the numeric identifier of the port (e.g., PortA = 0, PortB = 1, PortC = 2, etc.).
PinId is the index of the selected pin within the port.

For PTD15, the calculation would be:

PortPin Pcr = 15 + (3 × 32) = 111

BR, VaneB