S32K116EVB 's ADC code of 0xFFF

[D_pengF]

Hello， in S32K116EVB  example of ADC project，how is algorithm bellow come from？especially why is 0xFFF,not 0xFFF0?
code:

uint32_t read_adc_chx(void)
{
uint16_t adc_result=0;
adc_result=ADC0->R[0]; /* For SW trigger mode, R[0] is used */
return (uint32_t) ((5000*adc_result)/0xFFF); /* Convert result to mv for 0-5V range */
}

[D_pengF]

Dear Robin
thank you very much !
new EVB no program, firmware could not work.

[Robin_Shen]

Hi

Seems that you are referring to AN5413. It initialize ADC resolution 12 bit(2^12=4096 levels). So you need to /0xFFF.

Have a look at Resolution of AN12217 S32K1xx ADC guidelines, spec and configuration.

Best Regards,
Robin
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[D_pengF]

Dear Robin
thank you very much !
another question I want to ask
recently ,I got   S32K116EVB board, it shows"NO board  detected on any of specified UART communication ", I also do a connnection according to the S32K116-EVB_QSG_REV0 - QucikStartGuide, eveything seem to be ok, When EVB is powered from USB, LEDs D2 and D3 light become green. but RGB LED colors periodically between RED-GREEN-BLUE can not light, it is off.
computer's COM already  set 11520b,
how can I figure out this problem, please do me a favor!
thanks a lot

[Robin_Shen]

Please refer to the discussion in S32K116EVB FreeMaster Connection Failure

Maybe S32K116_EVB_JumpStart_Firmware.srec is not programmed into S32K116 at the factory. Download the S32K116EVB Evaluation Board – Software for FreeMASTER and find the ...\S32K116EVB_JumpStart_FreeMaster\S32K116_EVB_JumpStart_Firmware\Debug\S32K116_EVB_JumpStart_Firmware.srec