S32KのトピックRe: print function in s32k144

print function in s32k144

akhilranga — Mon, 22 Aug 2022 12:35:20 GMT

hello all,

the one below is the example code for ADC. You can notice, in the code that the output of this code is red, blue and green lights switching on based on the onboard Potentiometer input.

My Question is : How can I read the exact potentiometer value. How can I print that value. How can I use print function here. So that whenever the potentiometer changes, I can see the value of ADC result in mV (0-5000mv) and also see the change of lights based on the value according to code.

#include "S32K144.h" /* include peripheral declarations S32K144 */ #include "clocks_and_modes.h" #include "ADC.h" #define PTD15 15 /* RED LED*/ #define PTD16 16 /* GREEN LED*/ #define PTD0 0 /* BLUE LED */ void PORT_init (void) { PCC->PCCn[PCC_PORTD_INDEX ]|=PCC_PCCn_CGC_MASK; /* Enable clock for PORTD */ PORTD->PCR[PTD0] = 0x00000100; /* Port D0: MUX = GPIO */ PORTD->PCR[PTD15] = 0x00000100; /* Port D15: MUX = GPIO */ PORTD->PCR[PTD16] = 0x00000100; /* Port D16: MUX = GPIO */ PTD->PDDR |= 1<<PTD0; /* Port D0: Data Direction= output */ PTD->PDDR |= 1<<PTD15; /* Port D15: Data Direction= output */ PTD->PDDR |= 1<<PTD16; /* Port D16: Data Direction= output */ } void WDOG_disable (void){ WDOG->CNT=0xD928C520; /* Unlock watchdog */ WDOG->TOVAL=0x0000FFFF; /* Maximum timeout value */ WDOG->CS = 0x00002100; /* Disable watchdog */ } int main(void) { uint32_t adcResultInMv=0; WDOG_disable(); /* Disable WDOG*/ SOSC_init_8MHz(); /* Initialize system oscillator for 8 MHz xtal */ SPLL_init_160MHz(); /* Initialize SPLL to 160 MHz with 8 MHz SOSC */ NormalRUNmode_80MHz(); /* Init clocks: 80 MHz sysclk & core, 40 MHz bus, 20 MHz flash */ PORT_init(); /* Init port clocks and gpio outputs */ ADC_init(); /* Init ADC resolution 12 bit*/ for(;;) { convertAdcChan(12); /* Convert Channel AD12 to pot on EVB */ while(adc_complete()==0){} /* Wait for conversion complete flag */ adcResultInMv = read_adc_chx(); /* Get channel's conversion results in mv */ if (adcResultInMv > 3750) { /* If result > 3.75V */ PTD->PSOR |= 1<<PTD0 | 1<<PTD16; /* turn off blue, green LEDs */ PTD->PCOR |= 1<<PTD15; /* turn on red LED */ } else if (adcResultInMv > 2500) { /* If result > 2.5V */ PTD->PSOR |= 1<<PTD0 | 1<<PTD15; /* turn off blue, red LEDs */ PTD->PCOR |= 1<<PTD16; /* turn on green LED */ } else if (adcResultInMv >1250) { /* If result > 1.25V */ PTD->PSOR |= 1<<PTD15 | 1<<PTD16; /* turn off red, green LEDs */ PTD->PCOR |= 1<<PTD0; /* turn on blue LED */ } else { PTD->PSOR |= 1<<PTD0 | 1<< PTD15 | 1<<PTD16; /* Turn off all LEDs */ } convertAdcChan(29); /* Convert chan 29, Vrefsh */ while(adc_complete()==0){} /* Wait for conversion complete flag */ adcResultInMv = read_adc_chx(); /* Get channel's conversion results in mv */ } }

Hope, you understood my question. Please help me out how ever possiblle. Thank You

Re: print function in s32k144

Robin_Shen — Tue, 23 Aug 2022 05:56:53 GMT

Hi akhilranga,

Please refer to adc_hwtrigger_s32k144 in S32SDK S32K1xx RTM:

I don't know what version of S32DS you are using. Here are the two latest SDK versions in S32DS ARM2.2 and S32DS 3.4:
S32 Design Studio for ARM 2.2 - Update 1 available
S32 Design Studio v3.4 S32K1 Service Pack 1 released!

Best Regards,
Robin
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Re: print function in s32k144

akhilranga — Wed, 24 Aug 2022 07:13:32 GMT

Hello there i am using S32kDS for ARM v1.3.

And i dont have this SDK S32SDK S32K1xx RTM:.

How can i get this.Please asssit me.

Thank You

Re: print function in s32k144

Robin_Shen — Wed, 24 Aug 2022 07:34:42 GMT

The version of S32DS you are using is too old, it is recommended to use a new version for development.

Anyway, please install S32K1 SDK by refer to: S32 Design Studio for Arm v1.3 - Update 3 & 4 available

Re: print function in s32k144

akhilranga — Wed, 24 Aug 2022 10:04:35 GMT

Hi @Robin_Shen

thanks for the advice about the version 1.3

I tried the adc_hwtrigger, but got lots of errors. can you please help me resolve it. Attaching the screen shot down below.

Thank You

Re: print function in s32k144

Robin_Shen — Wed, 24 Aug 2022 11:36:58 GMT

Please click "Generate Processor Expert Code" and then Build the project.

Re: print function in s32k144

akhilranga — Fri, 26 Aug 2022 11:20:43 GMT

Hi @Robin_Shen

Yes, I was able to do build the code without erorr. I jsut had one last doubt . Where can i acess that print function. I mean where can i see the ADC valuse which were being printed by the function.

Re: print function in s32k144

Robin_Shen — Sat, 27 Aug 2022 01:33:59 GMT

The example documentation can be found in the S32 SDK documentation at Examples and Demos section. (<SDK_PATH>/doc/Start_Here.html) Please read the manual of ADC Hardware Trigger