S32 Design Studio中的主题 Re: Cannot get examples to work

Cannot get examples to work

ArkAndyFraser — Fri, 01 Sep 2023 14:29:42 GMT

I am struggling to get any code to run on my S32K144W.

I have selected New Project from Example and chose the lpuart for the 144W. When I build and debug the code I get the following:

BusFault: A precise (synchronous) data access error has occurred.
Possible BusFault location: 0x4004B020.
HardFault: A fault has been escalated to a hard fault.

This happens with a call to:

PINS_DRV_Init(NUM_OF_CONFIGURED_PINS0, g_pin_mux_InitConfigArr0);

Does anyone know what I am doing wrong?

Andy

Re: Cannot get examples to work

VaneB — Fri, 01 Sep 2023 22:45:26 GMT

Hi @ArkAndyFraser

Did you make any modifications to the example code? According to the address 0x4004B020, the problem looks like it is in the Pin Control Register of the PORT C.

Please check the exact instructions that caused the BusFault. It can be debugged as explained in this document/example: Fault handling on S32K14x.

B.R.

VaneB

Re: Cannot get examples to work

ArkAndyFraser — Sat, 02 Sep 2023 08:29:08 GMT

@VaneB

It is completely unmodified - I chose choose new project from example, built the project and then hit debug. It fails here:

void PINS_Init(const pin_settings_config_t * config)
{
DEV_ASSERT(config->base != NULL);
DEV_ASSERT((PORT_MUX_AS_GPIO != config->mux) || (config->gpioBase != NULL));
DEV_ASSERT(config->pinPortIdx < PORT_PCR_COUNT);
uint32_t regValue = config->base->PCR[config->pinPortIdx]; <----------------------------------
uint32_t directions;
uint32_t digitalFilters;
port_mux_t muxing;

Thanks for your help.

Andy

Re: Cannot get examples to work

ArkAndyFraser — Sat, 02 Sep 2023 13:37:47 GMT

Okay, false alarm !

I found that a contact on my external crystal was not correctly soldered.

Now I have both the timer and uart examples working.

@VaneB Thanks for your help - much appreciated.

Andy