Structure holding the configuration for the GPIO FIFO pulse width, polarity, and pins. More...

#include <gpio_bl61x_wo.h>

Data Fields
uint16_t	total_cycles
	Total clock cycles length of a toggling cycles (9 bits)
uint8_t	set_cycles
	Number of clock cycles a pin is toggled when its bit is set.
uint8_t	unset_cycles
	Number of clock cycles a pin is toggled when its bit is unset.
bool	set_invert
	Go from low to high instead of high to low when bit is set.
bool	unset_invert
	Same but when bit is unset.
bool	park_high
	Park pins high instead of low at the end of a sequence.

Detailed Description

Structure holding the configuration for the GPIO FIFO pulse width, polarity, and pins.

Such as:

set_invert, unset_invert and park_high are false total_cycles is 9 set_cycles is 6 unset_cycles is 4 2 frames of data, one with the pin bit set to 1, one with it set to 0 The clock cycle unit is XCLK's speed (RC32M or crystal)

                   total_cycles
          |-----------------------------------|-----------------------------------|
 
clock     |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |"| |
          | |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_| |_|
 
data      1                                   0
 
Pin value """"""""""""""""""""""""|           |"""""""""""""""|
                                  |___________|               |___________________________
 
          |-----------------------|-----------|---------------|-------------------|---------
          |     set_cycles        |total - set|  unset_cycles |  total - unset    | park

Pins match such as toggle bit = pin & 16 (eg, pin 0 is bit 0, 17 is bit 1, pin 2 is bit 2, etc).

Field Documentation

◆ park_high

bool bl61x_wo_config::park_high

Park pins high instead of low at the end of a sequence.

◆ set_cycles

uint8_t bl61x_wo_config::set_cycles

Number of clock cycles a pin is toggled when its bit is set.

◆ set_invert

bool bl61x_wo_config::set_invert

Go from low to high instead of high to low when bit is set.

◆ total_cycles

uint16_t bl61x_wo_config::total_cycles

Total clock cycles length of a toggling cycles (9 bits)

◆ unset_cycles

uint8_t bl61x_wo_config::unset_cycles

Number of clock cycles a pin is toggled when its bit is unset.

◆ unset_invert

bool bl61x_wo_config::unset_invert

Same but when bit is unset.

The documentation for this struct was generated from the following file:

include/zephyr/drivers/gpio/gpio_bl61x_wo.h

Data Fields