Hello
I use sdk v17.0 and nrf52832.
I'd like to use 1-channel PWM and 2-channel PWM. However, an error is output from the pwm_enable when using these two together.
This is my code and an error printed in debug.
Debug Terminal
<error> app: ERROR 3735928559 [Unknown error code] at Y:\YSC\Project\CODE\Nordic\SDK17.0\nRF5_SDK_17.0.0_9d13099\modules\nrfx\drivers\src\nrfx_timer.c:143 PC at: 0x0003418B <error> app: End of error report
nrfx_timer.c (143 Line)
void nrfx_timer_enable(nrfx_timer_t const * const p_instance)
{
NRFX_ASSERT(m_cb[p_instance->instance_id].state == NRFX_DRV_STATE_INITIALIZED); //143 line, error
nrf_timer_task_trigger(p_instance->p_reg, NRF_TIMER_TASK_START);
m_cb[p_instance->instance_id].state = NRFX_DRV_STATE_POWERED_ON;
NRFX_LOG_INFO("Enabled instance: %d.", p_instance->instance_id);
}PWM code in main.c
APP_PWM_INSTANCE(PWM1,1); // Create the instance "PWM1" using TIMER1 (name, NRF_DRV_TIMER_INSTANCE(num)).
APP_PWM_INSTANCE(PWM2,3);
static volatile bool ready_flag; // A flag indicating PWM status.
static volatile bool ready_flag2;
void pwm_play_buzzer_duration(uint32_t duration) //buzzer play time
{
uint8_t i;
uint32_t duty = 50;
NRF_LOG_INFO("pwm_play_buzzer_duration =>");
ready_flag = false;
//Set the duty cycle - keep trying until PWM is ready...
while (app_pwm_channel_duty_set(&PWM1, 0, duty) == NRF_ERROR_BUSY);
nrf_delay_ms(duration);
app_pwm_disable(&PWM1);
}
void pwm_ready_callback(uint32_t pwm_id) // PWM callback function
{
ready_flag = true;
}
void pwm_ready_callback2(uint32_t pwm_id) // PWM callback function
{
ready_flag2 = true;
}
/*
init, Once executed
*/
//buzzer PWM initializing
void pwm_init(void)
{
ret_code_t err_code;
// 1-channel PWM, output on buzzer pin.
app_pwm_config_t pwm1_cfg = APP_PWM_DEFAULT_CONFIG_1CH(1500, BUZZER_PIN);
// 2-channel PWM, output 50kHz
app_pwm_config_t pwm2_cfg = APP_PWM_DEFAULT_CONFIG_2CH(20, PWM_1, PWM_2);
/* Switch the polarity of the second channel. */
pwm1_cfg.pin_polarity[1] = APP_PWM_POLARITY_ACTIVE_HIGH;
pwm2_cfg.pin_polarity[1] = APP_PWM_POLARITY_ACTIVE_HIGH;
/* Initialize and enable PWM. */
err_code = app_pwm_init(&PWM1,&pwm1_cfg,pwm_ready_callback);
APP_ERROR_CHECK(err_code);
err_code = app_pwm_init(&PWM2,&pwm2_cfg,pwm_ready_callback2);
APP_ERROR_CHECK(err_code);
app_pwm_enable(&PWM1);
}
/*
pwm_change_frequency,Can be executed multiple times
*/
void pwm_change_frequency(uint16_t period_us) //change buzzer sound, ex) pwm_change_frequency(500);
{
ret_code_t err_code;
app_pwm_disable(&PWM1); //disable PWM for change PWM
app_pwm_uninit(&PWM1); //uninitializing a PWM
// 1-channel PWM output on buzzer pin.
app_pwm_config_t pwm1_cfg = APP_PWM_DEFAULT_CONFIG_1CH(period_us, BUZZER_PIN);
/* Switch the polarity of the second channel. */
pwm1_cfg.pin_polarity[1] = APP_PWM_POLARITY_ACTIVE_HIGH;
/* Initialize and enable PWM. */
err_code = app_pwm_init(&PWM1,&pwm1_cfg,pwm_ready_callback);
APP_ERROR_CHECK(err_code);
app_pwm_enable(&PWM1);
}
static void do_play_buzzer(void)
{
app_pwm_enable(&PWM1);
pwm_play_buzzer_duration(200); //buzzer play time
}
int main(void)
{
uint32_t err_code;
bool erase_bonds = false;
// Initialize.
gpio_init();
uart_init();
log_init();
timers_init();
app_buttons_init();
power_management_init();
ble_stack_init();
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
peer_manager_init();
err_code = app_button_enable();
//err_code = app_button_disable();
APP_ERROR_CHECK(err_code);
adc_configure(); //baterry value & LED
pwm_init();
bsp_board_init(BSP_INIT_LEDS); //use bsp
// Start execution.
printf("\r\nCleaner Device started.\r\n");
NRF_LOG_INFO("Debug logging for UART over RTT started.");
advertising_start(erase_bonds); //false
pwm_change_frequency(1500);
do_play_buzzer(); //When start play buzzer, error!
//nrf_gpio_pin_set(POWER_SW); //HIGH : power on
//PWM2 setting
ready_flag2 = false;
/* Set the duty cycle - keep trying until PWM is ready... */
while (app_pwm_channel_duty_set(&PWM2, 0, 50) == NRF_ERROR_BUSY); //channel 1
/* ... or wait for callback. */
while (!ready_flag);
APP_ERROR_CHECK(app_pwm_channel_duty_set(&PWM2, 1, 50)); //channel 2
// Enter main loop.
for (;;)
{
pm_sec_params_set(NULL); //No Security parameters
if(PWM2_state == true)
{
app_pwm_enable(&PWM2); //PWM2 On (50kHz)
}
else
{
app_pwm_disable(&PWM2); //PWM2 Off
}
}
}sdk_config.h (timer instance)
#ifndef NRFX_TIMER_ENABLED #define NRFX_TIMER_ENABLED 1 #endif // <q> NRFX_TIMER0_ENABLED - Enable TIMER0 instance #ifndef NRFX_TIMER0_ENABLED #define NRFX_TIMER0_ENABLED 1 #endif // <q> NRFX_TIMER1_ENABLED - Enable TIMER1 instance #ifndef NRFX_TIMER1_ENABLED #define NRFX_TIMER1_ENABLED 1 #endif // <q> NRFX_TIMER2_ENABLED - Enable TIMER2 instance #ifndef NRFX_TIMER2_ENABLED #define NRFX_TIMER2_ENABLED 1 #endif // <q> NRFX_TIMER3_ENABLED - Enable TIMER3 instance #ifndef NRFX_TIMER3_ENABLED #define NRFX_TIMER3_ENABLED 1 #endif // <q> NRFX_TIMER4_ENABLED - Enable TIMER4 instance #ifndef NRFX_TIMER4_ENABLED #define NRFX_TIMER4_ENABLED 1 #endif #ifndef TIMER0_ENABLED #define TIMER0_ENABLED 1 #endif // <q> TIMER1_ENABLED - Enable TIMER1 instance #ifndef TIMER1_ENABLED #define TIMER1_ENABLED 1 #endif // <q> TIMER2_ENABLED - Enable TIMER2 instance #ifndef TIMER2_ENABLED #define TIMER2_ENABLED 1 #endif // <q> TIMER3_ENABLED - Enable TIMER3 instance #ifndef TIMER3_ENABLED #define TIMER3_ENABLED 1 #endif // <q> TIMER4_ENABLED - Enable TIMER4 instance #ifndef TIMER4_ENABLED #define TIMER4_ENABLED 1 #endif
It's my first time using multiple PWMs, so I'm not sure. Can you tell me the cause of this problem?
Thank you.
Thank you.
