Pit Timer Interrupts not working - S32K358

ajosep12 — Mon, 20 Jan 2025 07:13:39 GMT

Greetings,

I'm trying to add a PIT Timer Interrupt to the TCPIP2.0.0 example code. The derivative is S32K358, and I'm using S32K3x8-EVB for testing the code.

I have the following setup:

In main.c:

#include "device.h" #include "Pit_Ip.h" #include "Clock_Ip.h" #include "IntCtrl_Ip.h" #include "Siul2_Port_Ip.h" #include "Siul2_Dio_Ip.h" /* The actual TCP/IP test */ extern void start_example(void); int c1 = 0; /* Global flag updated in interrupt */ volatile uint8 toggleLed = 0U; void TimerInterupt1(void) { toggleLed = 1U; } /* main function */ int main(void) { device_init(); start_example(); return 0; }

In device.c: ( I have migrated most of the MCAL modules to Drivers, and therefore I have removed some modules). I have also removed OsIf in order to check whether it affects the functionality of the TCPIP stack, but the TCPIP examples seem to function well.

#include "S32K358.h" //#include "Platform.h" #include "device.h" #include "Mcal.h" #include "Mcu.h" //#include "Port.h" #include "Siul2_Port_Ip.h" //#include "OsIf.h" #include "Eth_43_GMAC.h" //#include "Dio.h" #include "Siul2_Dio_Ip.h" #ifndef USING_OS_FREERTOS //#include "Gpt.h" #endif #include "Pit_Ip.h" #include "IntCtrl_Ip.h" #include "apps/led_control/led.h" void device_init(void) { /* Set RMII configuration for EMAC in DCM module */ IP_DCM_GPR->DCMRWF1 = (IP_DCM_GPR->DCMRWF1 & ~DCM_GPR_DCMRWF1_MAC_CONF_SEL_MASK) | DCM_GPR_DCMRWF1_MAC_CONF_SEL(2U); // /* Initialize Os Interface */ // OsIf_Init(NULL_PTR); /* Initialize all pins using the Port driver */ //Port_Init(NULL_PTR); Siul2_Port_Ip_PortStatusType Status_Init_Port = SIUL2_PORT_ERROR; Status_Init_Port = Siul2_Port_Ip_Init(NUM_OF_CONFIGURED_PINS_PortContainer_0_BOARD_InitPeripherals, g_pin_mux_InitConfigArr_PortContainer_0_BOARD_InitPeripherals); if(Status_Init_Port != SIUL2_PORT_SUCCESS) { while(1); /* Error during initialization. */ } /* Setup Clocks */ /* Initialize Mcu module */ Mcu_Init(NULL_PTR); /* Initialize Mcu clock */ Mcu_InitClock(McuClockSettingConfig_0); while (Mcu_GetPllStatus() != MCU_PLL_LOCKED){}; /* Use PLL clock */ Mcu_DistributePllClock(); Mcu_SetMode(McuModeSettingConf_0); // /* Initialize Platform driver */ // Platform_Init(NULL_PTR); /* set PIT 0 interrupt */ IntCtrl_Ip_Init(&IntCtrlConfig_0); IntCtrl_Ip_EnableIrq(PIT0_IRQn); /* Initialize PIT instance 0 - Channel 0 */ Pit_Ip_Init(PIT_INST_0, &PIT_0_ChannelConfig_PB_BOARD_InitPeripherals); /* Initialize channel 0 */ Pit_Ip_InitChannel(PIT_INST_0, PIT_0_CH_0); /* Enable channel interrupt PIT_0 - CH_0 */ Pit_Ip_EnableChannelInterrupt(PIT_INST_0, CH_0); /* Start channel CH_0 */ Pit_Ip_StartChannel(PIT_INST_0, CH_0, PIT_PERIOD_0); /* Initialize channel 0 */ Pit_Ip_InitChannel(PIT_INST_0, PIT_0_CH_1); /* Enable channel interrupt PIT_0 - CH_0 */ Pit_Ip_EnableChannelInterrupt(PIT_INST_0, CH_1); /* Start channel CH_0 */ Pit_Ip_StartChannel(PIT_INST_0, CH_1, PIT_PERIOD_1); #ifndef USING_OS_FREERTOS // /* Initialize PIT driver and start the timer */ // Gpt_Init(&Gpt_Config_BOARD_InitPeripherals); // /* Start the Gpt timer */ // Gpt_StartTimer(GptConf_GptChannelConfiguration_GptChannelConfiguration_0, 40000000U); // /* Enable the Gpt notification*/ // Gpt_EnableNotification(GptConf_GptChannelConfiguration_GptChannelConfiguration_0); // OsIf_SetTimerFrequency(160000000U, OSIF_USE_SYSTEM_TIMER); #endif /* USING_OS_FREERTOS */ /* Initialize and enable the GMAC module */ Eth_43_GMAC_Init(NULL_PTR); }

#include "BasicTypes.h" #ifndef DEVICE_H #define DEVICE_H // 40000000 is one second // 4000000 is 100 ms // 400000 is 10 ms #define PIT_PERIOD_0 2000000 //100ms #define PIT_PERIOD_1 400000 // 10 ms #define PIT_PERIOD_2 4000 //100 us #define PIT_INST_0 0 #define PIT_INST_1 1 #define PIT_INST_2 2 #define CH_0 0 #define CH_1 1 #define CH_2 2 void device_init(void); #endif

In test.c's while loop I have the following setup:

/* Toggle the gpio pin to blink the LED when the Pit notification is called */ if (1U == toggleLed) { //Siul2_Dio_Ip_TogglePins(LED_PORT, (1UL << LED_PIN)); led0_red(); toggleLed = 0U; }

void led0_red(void){ // Dio_WriteChannel(DioConf_DioChannel_LED0_RED, STD_HIGH); // Dio_WriteChannel(DioConf_DioChannel_LED0_GREEN, STD_LOW); // Dio_WriteChannel(DioConf_DioChannel_LED0_BLUE, STD_LOW); Siul2_Dio_Ip_WritePin(LED0_RED_PORT, LED0_RED_PIN, STD_HIGH); Siul2_Dio_Ip_WritePin(LED0_GREEN_PORT, LED0_GREEN_PIN, STD_LOW); Siul2_Dio_Ip_WritePin(LED0_BLUE_PORT, LED0_BLUE_PIN, STD_LOW); }

The configuration in PINtool is as follows:

The configuration in the peripheral tool:

I have also set breakpoints insider the TimerInterupt1(); function, which is supposed to be called every 50 ms, but the execution never reaches the breakpoint.

Is there anything that I'm missing?

I compared with the available Pit_Gpt_Ip_example as well, but couldn't find why the modifications that I made to TCPIP example isn't working with respect to the timer interrupts, while the rest of the functionality of the TCPIP example works perfectly.

Re: Pit Timer Interrupts not working - S32K358

VaneB — Mon, 20 Jan 2025 21:30:29 GMT

Hi @ajosep12

If possible, could you please share your project? I would like to conduct a detailed analysis of the configurations to ensure that all requirements are met. Additionally, I would like to test it on my side to verify if I can reproduce the behavior you are describing.

I also recommend commenting out any functions that are not related to the PIT functionality. This will help isolate the issue and simplify troubleshooting.

BR, VaneB

topic Pit Timer Interrupts not working - S32K358 in S32K

Pit Timer Interrupts not working - S32K358

Re: Pit Timer Interrupts not working - S32K358