topic g_pin_mux_InitConfigArr0 in S32 Design Studio

g_pin_mux_InitConfigArr0

samcs — Wed, 23 Mar 2022 00:25:22 GMT

Hi NXP support team,

I debugged the project, set break point at rtos_start(), in function: int main(void),

the first line.

the global should be initialized, but used PEMicro, on Expressions window, I found:

g_pin_mux_InitConfigArr0[73]
Details:{

base = 0x0 <__isr_vector>,

pinPortIdx = 0,

pullConfig = PORT_INTERNAL_PULL_NOT_ENABLED,

passiveFilter = false,

driveSelect = PORT_LOW_DRIVE_STRENGTH,

mux = PORT_PIN_DISABLED,

pinLock = false,

intConfig = PORT_DMA_INT_DISABLED,

clearIntFlag = false,

digitalFilter = false,

gpioBase = 0x0 <__isr_vector>,

direction = GPIO_INPUT_DIRECTION, initValue = 0 '\0'}

this will cause a the program stopped at default ISR.

I searched pinPortIdx in pin_mux.c, got:

board
pin_mux.c (73 matches)
124: .pinPortIdx = 10U,

So the issue is only 73 items in g_pin_mux_InitConfigArr0[];

but in pin_mux.c,

/* Generate array of configured pin structures */
pin_settings_config_t g_pin_mux_InitConfigArr0[NUM_OF_CONFIGURED_PINS0] = {

#define NUM_OF_CONFIGURED_PINS0 77 // in pin_mux.h,

i am wondering why the NUM_OF is 77 in pin_mux.h,

I am using S32 Design Studio for S32 Platform Version: 3.4,S32K1XX SDK RTM 4.0.2.

Any help would be much appreciated.

Re: g_pin_mux_InitConfigArr0

samcs — Wed, 23 Mar 2022 13:55:43 GMT

Found the reason, seems some pins be assigned to more functions, then the NUM_OF value is not the number of pins, it's the number of functions.

But S32DS For ARM IDE dees not have the issue.

Don't know how to configure the macro in pin_mux.h, have to change it manually?

Re: g_pin_mux_InitConfigArr0

danielmartynek — Wed, 23 Mar 2022 14:43:39 GMT

Hi @samcs,

Please double check the Configuration tool and update the code, the generated structure must match the settings there. Is the tool reporting any error?

BR, Daniel

Re: g_pin_mux_InitConfigArr0

samcs — Wed, 23 Mar 2022 15:12:09 GMT

Only got one warning,

I just wondering, why S32 Design Studio for ARM IDE, can handle More functions assigned on one pin, the generated code, here,PTA4, assigned 2 functions, but not affected the Macro definition in pin_mux.h.

NUM_OF_CONFIGURED_PINS

Re: g_pin_mux_InitConfigArr0

samcs — Wed, 23 Mar 2022 15:15:41 GMT

Even PTC2,PTC3 are dual functions pins, but the ConfigrTools not generated warnings.

Re: g_pin_mux_InitConfigArr0

danielmartynek — Wed, 23 Mar 2022 15:21:04 GMT

JTAG_TMS/SWD_DIO is a single function of the PTA4 pin (ALT7).

Re: g_pin_mux_InitConfigArr0

danielmartynek — Wed, 23 Mar 2022 15:25:00 GMT

PTC3 has two analog functions that are the default ALT0 functions.

In other words, the PTC3 MUX needs a reconfiguration only of the pin is used with an alternative digital function.

BR, Daniel

Re: g_pin_mux_InitConfigArr0

samcs — Wed, 23 Mar 2022 15:37:54 GMT

Thanks, so if the alt functions be configured both, then the generated code will configured twice?

one pin will configured twice, then the NUM_OF_CONFIGURED will be 2 for one pin?

Re: g_pin_mux_InitConfigArr0

danielmartynek — Wed, 23 Mar 2022 16:01:02 GMT

Yes, I just tested it (PTA4, PTC3) and indeed the NUM_OF_CONFIGURED_PINS0 increments.

Also, there is no warning for PTC3.

I will report it.

Thanks for pointing it out.

BR, Daniel