#include "hardware/pio.h"
#include <assert.h>
#include <stddef.h>
#include "hardware/pio_instructions.h"
#include "hx711_multi.h"

Macros
#define	hx711_multi_awaiter_wrap_target 0

#define	hx711_multi_awaiter_wrap 6

#define	hx711_multi_awaiter_offset_wait_in_pins_bit_count 0u

Functions
static pio_sm_config	hx711_multi_awaiter_program_get_default_config (uint offset)

void	hx711_multi_awaiter_program_init (hx711_multi_t *const hxm)

Variables
static const uint16_t	hx711_multi_awaiter_program_instructions []

static const struct pio_program	hx711_multi_awaiter_program

Macro Definition Documentation

◆ hx711_multi_awaiter_offset_wait_in_pins_bit_count

#define hx711_multi_awaiter_offset_wait_in_pins_bit_count 0u

Definition at line 18 of file hx711_multi_awaiter.pio.h.

◆ hx711_multi_awaiter_wrap

#define hx711_multi_awaiter_wrap 6

Definition at line 16 of file hx711_multi_awaiter.pio.h.

◆ hx711_multi_awaiter_wrap_target

#define hx711_multi_awaiter_wrap_target 0

Definition at line 15 of file hx711_multi_awaiter.pio.h.

Function Documentation

◆ hx711_multi_awaiter_program_get_default_config()

static pio_sm_config hx711_multi_awaiter_program_get_default_config ( uint offset )

inlinestatic

Definition at line 39 of file hx711_multi_awaiter.pio.h.

                                                                                         {
     pio_sm_config c = pio_get_default_sm_config();
     sm_config_set_wrap(&c, offset + hx711_multi_awaiter_wrap_target, offset + hx711_multi_awaiter_wrap);
     return c;
 }

References hx711_multi_awaiter_wrap, and hx711_multi_awaiter_wrap_target.

Referenced by hx711_multi_awaiter_program_init().

◆ hx711_multi_awaiter_program_init()

void hx711_multi_awaiter_program_init ( hx711_multi_t *const hxm )

Definition at line 71 of file hx711_multi_awaiter.pio.h.

                                                                 {
     assert(hxm != NULL);
     assert(hxm->_pio != NULL);
     assert(hxm->_chips_len > 0);
     pio_sm_config cfg = hx711_multi_awaiter_program_get_default_config(
         hxm->_awaiter_offset);
     //replace placeholder in instruction with the number of pins
     //to read
     hxm->_pio->instr_mem[hxm->_awaiter_offset + hx711_multi_awaiter_offset_wait_in_pins_bit_count] = 
         pio_encode_in(pio_pins, hxm->_chips_len);
     //data pins
     pio_sm_set_in_pins(
         hxm->_pio,
         hxm->_awaiter_sm,
         hxm->_data_pin_base);
     pio_sm_set_consecutive_pindirs(
         hxm->_pio,
         hxm->_awaiter_sm,
         hxm->_data_pin_base,
         hxm->_chips_len,
         false);         //false = output pins
     sm_config_set_in_pins(
         &cfg,
         hxm->_data_pin_base);
     //even though the program reads data into the ISR,
     //it does not push any data, so make sure autopushing
     //is disabled
     sm_config_set_in_shift(
         &cfg,
         false,              //false = shift left
         false,              //false = autopush disabled
         hxm->_chips_len);   //autopush threshold
     pio_sm_clear_fifos(
         hxm->_pio,
         hxm->_awaiter_sm);
     hxm->_awaiter_default_config = cfg;
 }

References hx711_multi_t::_awaiter_default_config, hx711_multi_t::_awaiter_offset, hx711_multi_t::_awaiter_sm, hx711_multi_t::_chips_len, hx711_multi_t::_data_pin_base, hx711_multi_t::_pio, hx711_multi_awaiter_offset_wait_in_pins_bit_count, and hx711_multi_awaiter_program_get_default_config().

Variable Documentation

◆ hx711_multi_awaiter_program

const struct pio_program hx711_multi_awaiter_program

static

Initial value:

= {
    .instructions = hx711_multi_awaiter_program_instructions,
    .length = 7,
    .origin = -1,
}

Definition at line 20 of file hx711_multi_awaiter.pio.h.

◆ hx711_multi_awaiter_program_instructions

const uint16_t hx711_multi_awaiter_program_instructions[]