Hello, I´m new to the forum and joined seeking help for this issue. I have looked around and haven´t found any similar posts so I created this New Topic.
I need the following PIO program to mirror the inputs from some pins into other pins:
If I set the length to 3, the code doesn`t reflect the inputs to the outputs. If I set the length to 4 (discovered by acident), the code works correctly.
Any Ideas why this is the case?
I need the following PIO program to mirror the inputs from some pins into other pins:
Code:
#pragma once#if !PICO_NO_HARDWARE#include "hardware/pio.h"#endif// ---------- //// pin_mirror //// ---------- //#define pin_mirror_wrap_target 0#define pin_mirror_wrap 2static const uint16_t pin_mirror_program_instructions[] = { // .wrap_target 0x4008, // 0: in pins, 8 0xa0e6, // 1: mov osr, isr 0x6008, // 2: out pins, 8 // .wrap};#if !PICO_NO_HARDWAREstatic const struct pio_program pin_mirror_program = { .instructions = pin_mirror_program_instructions, .length = 3, .origin = -1,};static inline pio_sm_config pin_mirror_program_get_default_config(uint offset) { pio_sm_config c = pio_get_default_sm_config(); sm_config_set_wrap(&c, offset + pin_mirror_wrap_target, offset + pin_mirror_wrap); return c;}If I set the length to 3, the code doesn`t reflect the inputs to the outputs. If I set the length to 4 (discovered by acident), the code works correctly.
Any Ideas why this is the case?
Statistics: Posted by Velez — Fri Jan 17, 2025 5:12 pm — Replies 1 — Views 44