SF32LB LPTIM PWM

PWM controller driver for the SF32LB low-power timers. More...

Data Structures
struct	pbl_pwm_sf32lb_lptim
	SF32LB LPTIM PWM controller. More...

Macros
#define	PBL_PWM_SF32LB_LPTIM_DEFINE(sym, _name, _idx, _pinctrl, _deps)
	Define an SF32LB LPTIM PWM controller.

Detailed Description

PWM controller driver for the SF32LB low-power timers.

One channel, counting the RC10K low-power clock, so it keeps running in deep sleep. The period and duty cycle resolution is one RC10K cycle, about 100 us; the frequency is the calibrated one when the output is applied. The pin state can route the inverted output too.

PBL_PINCTRL_STATE_DEFINE(s_lptim2_default, SF32LB52_PINCTRL,
                         SF32LB52_PA24_PBR_LPTIM2_OUT | PBL_PINCTRL_SF32LB52_INPUT,
                         SF32LB52_PA25_PBR_LPTIM2_INV_OUT | PBL_PINCTRL_SF32LB52_INPUT);
PBL_PWM_SF32LB_LPTIM_DEFINE(s_lptim2, "lptim2", 2, &s_lptim2_default, NULL);

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Data Structure Documentation

pbl_pwm_sf32lb_lptim

struct pbl_pwm_sf32lb_lptim

SF32LB LPTIM PWM controller.

Data Fields
struct pbl_pwm_controller	ctrl	PWM controller.
uint8_t	index	Timer instance, 1 or 2.
struct pbl_pinctrl	pinctrl	Output pins.

Macro Definition Documentation

PBL_PWM_SF32LB_LPTIM_DEFINE

#define PBL_PWM_SF32LB_LPTIM_DEFINE	(		sym,
			_name,
			_idx,
			_pinctrl,
			_deps
	)

Value:

  PBL_PWM_CONTROLLER_STATE_DEFINE(sym, 1);                                        \
  const struct pbl_pwm_sf32lb_lptim sym = {                                       \
    .ctrl = PBL_PWM_CONTROLLER_INIT(sym, _name, pbl_pwm_sf32lb_lptim_init, _deps, \
                                    &pbl_pwm_sf32lb_lptim_ops),                   \
    .pinctrl = PBL_PINCTRL(_pinctrl, nullptr, 0),                                 \
    .index = (_idx),                                                              \
  };                                                                              \
  PBL_DEVICE_REGISTER(sym, &sym.ctrl.dev)

Define an SF32LB LPTIM PWM controller.

Parameters

sym	Symbol of the controller.
_name	Name.
_idx	Timer instance, 1 or 2.
_pinctrl	Pin state with the outputs, from PBL_PINCTRL_STATE_DEFINE().
_deps	Dependencies from PBL_DEVICE_DEPS(), or NULL.