KL65 ADC Implementation Hard Fault Error

grantcazinha — Wed, 15 Feb 2017 20:11:13 GMT

I am using FreeRTOS am implementing several ADC channels using PE to generate code. When I execute the code I hit a hard fault because it's trying to run the following line of code...

ADC1_CFG2 |= ADC_CFG2_MUXSEL_MASK;

The code tries to execute a write to a register that isn't initialized yet.

Has anyone else run into this issue and have you found a solution. This is very frustrating.

Full code for the init_adc_pins function is as follows...

void init_adc_pins(uint32_t instance)
{
switch(instance) {
case ADC0_IDX: /* ADC0_IDX */
/* Affects PORTB_PCR0 register */
PORT_HAL_SetMuxMode(PORTB,0UL,kPortPinDisabled);
/* Affects PORTB_PCR1 register */
PORT_HAL_SetMuxMode(PORTB,1UL,kPortPinDisabled);
break;
case ADC1_IDX: /* ADC1_IDX */
/* Affects PORTB_PCR0 register */
PORT_HAL_SetMuxMode(PORTB,0UL,kPortPinDisabled);
/* Affects PORTB_PCR1 register */
PORT_HAL_SetMuxMode(PORTB,1UL,kPortPinDisabled);
/* Affects PORTB_PCR4 register */
PORT_HAL_SetMuxMode(PORTB,4UL,kPortPinDisabled);
/* Affects PORTB_PCR5 register */
PORT_HAL_SetMuxMode(PORTB,5UL,kPortPinDisabled);
/* Affects PORTB_PCR10 register */
PORT_HAL_SetMuxMode(PORTB,10UL,kPortPinDisabled);
/* Affects PORTB_PCR11 register */
PORT_HAL_SetMuxMode(PORTB,11UL,kPortPinDisabled);
/* ADC1_CFG2: MUXSEL=1 */
ADC1_CFG2 |= ADC_CFG2_MUXSEL_MASK; <-----(This being my issue)
/* Affects PORTC_PCR8 register */
PORT_HAL_SetMuxMode(PORTC,8UL,kPortPinDisabled);
/* Affects PORTC_PCR9 register */
PORT_HAL_SetMuxMode(PORTC,9UL,kPortPinDisabled);
/* Affects PORTC_PCR10 register */
PORT_HAL_SetMuxMode(PORTC,10UL,kPortPinDisabled);
/* Affects PORTC_PCR11 register */
PORT_HAL_SetMuxMode(PORTC,11UL,kPortPinDisabled);
break;

Re: KL65 ADC Implementation Hard Fault Error

msembira — Wed, 06 Oct 2021 13:25:18 GMT

Hi did you solve it? I have the same problem with K66.

topic Re: KL65 ADC Implementation Hard Fault Error in Processor Expert Software

KL65 ADC Implementation Hard Fault Error

Re: KL65 ADC Implementation Hard Fault Error