Vybrid ADC Interrupt

[johannestraxler]

Previously we worked with the LWADC driver, but the "wait_next" function gives a delay, so I'm searching for an improved method to access the ADC.

My question is:

How can I make the ADC interrupt driven (interrupt on conversion complete)?

I've checked the datasheet and there should be AIEN-Flag in the ADCx_HC0/1 registers, which might play a role here.

[cyborgnegotiato]

Hi,

For new implementation in MQX, you can find inspiration in adc driver (for example in Freescale_MQX_4_1\mqx\source\io\adc directory).

Regards,

Jozef

[johannestraxler · Accepted solution]

I found the answer myself. You can use the MQX functions:

    _int_install_isr(NVIC_ADC0, iADC_ISR, 0);

    _bsp_int_init(NVIC_ADC0, 3, 0, TRUE);

    _int_install_isr(NVIC_ADC1, iADC_ISR, 0);

    _bsp_int_init(NVIC_ADC1, 3, 0, TRUE);

with iADC_ISR is the function pointer to the ISR: iADC_ISR(void*ptr).

And then make sure to have the AIEN flag enabled in the ADCx_HC0 registers!

[karina_valencia]

timesyssupport can you help to  review this case?

[timesyssupport]

Unfortunately, we do not have any details about how to make the MQX lwadc driver interrupt driven. Does the Freescale MQX team have any comment on this?

Thanks,

Timesys Support