TIMER counting micros

Question

Hi 
 I am struggling with timer in counter mode. What i need is the counter to calculate time between each loop in microseconds. I do not want time interrupts i just need a function which will return me time in microseconds (like on arduino). 
 Greetings

Karl Ylvisaker · Accepted Answer

You can add the entire nrfx_timer_* section from the other project into your sdk_config for your main project. Make sure to look through the configurations to ensure that they are configured to your requirements.

// <e> NRFX_TIMER_ENABLED - nrfx_timer - TIMER periperal driver
//==========================================================
#ifndef NRFX_TIMER_ENABLED
#define NRFX_TIMER_ENABLED 0
#endif
// <q> NRFX_TIMER0_ENABLED  - Enable TIMER0 instance
 

#ifndef NRFX_TIMER0_ENABLED
#define NRFX_TIMER0_ENABLED 0
#endif

// <q> NRFX_TIMER1_ENABLED  - Enable TIMER1 instance
 

#ifndef NRFX_TIMER1_ENABLED
#define NRFX_TIMER1_ENABLED 0
#endif

// <q> NRFX_TIMER2_ENABLED  - Enable TIMER2 instance
 

#ifndef NRFX_TIMER2_ENABLED
#define NRFX_TIMER2_ENABLED 0
#endif

// <q> NRFX_TIMER3_ENABLED  - Enable TIMER3 instance
 

#ifndef NRFX_TIMER3_ENABLED
#define NRFX_TIMER3_ENABLED 0
#endif

// <q> NRFX_TIMER4_ENABLED  - Enable TIMER4 instance
 

#ifndef NRFX_TIMER4_ENABLED
#define NRFX_TIMER4_ENABLED 0
#endif

// <o> NRFX_TIMER_DEFAULT_CONFIG_FREQUENCY  - Timer frequency if in Timer mode
 
// <0=> 16 MHz 
// <1=> 8 MHz 
// <2=> 4 MHz 
// <3=> 2 MHz 
// <4=> 1 MHz 
// <5=> 500 kHz 
// <6=> 250 kHz 
// <7=> 125 kHz 
// <8=> 62.5 kHz 
// <9=> 31.25 kHz 

#ifndef NRFX_TIMER_DEFAULT_CONFIG_FREQUENCY
#define NRFX_TIMER_DEFAULT_CONFIG_FREQUENCY 0
#endif

// <o> NRFX_TIMER_DEFAULT_CONFIG_MODE  - Timer mode or operation
 
// <0=> Timer 
// <1=> Counter 

#ifndef NRFX_TIMER_DEFAULT_CONFIG_MODE
#define NRFX_TIMER_DEFAULT_CONFIG_MODE 0
#endif

// <o> NRFX_TIMER_DEFAULT_CONFIG_BIT_WIDTH  - Timer counter bit width
 
// <0=> 16 bit 
// <1=> 8 bit 
// <2=> 24 bit 
// <3=> 32 bit 

#ifndef NRFX_TIMER_DEFAULT_CONFIG_BIT_WIDTH
#define NRFX_TIMER_DEFAULT_CONFIG_BIT_WIDTH 0
#endif

// <o> NRFX_TIMER_DEFAULT_CONFIG_IRQ_PRIORITY  - Interrupt priority
 
// <0=> 0 (highest) 
// <1=> 1 
// <2=> 2 
// <3=> 3 
// <4=> 4 
// <5=> 5 
// <6=> 6 
// <7=> 7 

#ifndef NRFX_TIMER_DEFAULT_CONFIG_IRQ_PRIORITY
#define NRFX_TIMER_DEFAULT_CONFIG_IRQ_PRIORITY 6
#endif

// <e> NRFX_TIMER_CONFIG_LOG_ENABLED - Enables logging in the module.
//==========================================================
#ifndef NRFX_TIMER_CONFIG_LOG_ENABLED
#define NRFX_TIMER_CONFIG_LOG_ENABLED 0
#endif
// <o> NRFX_TIMER_CONFIG_LOG_LEVEL  - Default Severity level
 
// <0=> Off 
// <1=> Error 
// <2=> Warning 
// <3=> Info 
// <4=> Debug 

#ifndef NRFX_TIMER_CONFIG_LOG_LEVEL
#define NRFX_TIMER_CONFIG_LOG_LEVEL 3
#endif

// <o> NRFX_TIMER_CONFIG_INFO_COLOR  - ANSI escape code prefix.
 
// <0=> Default 
// <1=> Black 
// <2=> Red 
// <3=> Green 
// <4=> Yellow 
// <5=> Blue 
// <6=> Magenta 
// <7=> Cyan 
// <8=> White 

#ifndef NRFX_TIMER_CONFIG_INFO_COLOR
#define NRFX_TIMER_CONFIG_INFO_COLOR 0
#endif

// <o> NRFX_TIMER_CONFIG_DEBUG_COLOR  - ANSI escape code prefix.
 
// <0=> Default 
// <1=> Black 
// <2=> Red 
// <3=> Green 
// <4=> Yellow 
// <5=> Blue 
// <6=> Magenta 
// <7=> Cyan 
// <8=> White 

#ifndef NRFX_TIMER_CONFIG_DEBUG_COLOR
#define NRFX_TIMER_CONFIG_DEBUG_COLOR 0
#endif

// </e>

Best regards,
Karl

TIMER counting micros

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