From 31d7a8c61326c6e74801c159e429e63ca90c06e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Hamal=20Dvo=C5=99=C3=A1k?= <mordae@anilinux.org>
Date: Wed, 28 Feb 2024 19:45:44 +0100
Subject: [PATCH] Weaker biasing has better SNR
---
src/main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/main.c b/src/main.c
index 30e4b9a..05456df 100644
--- a/src/main.c
+++ b/src/main.c
@@ -103,6 +103,9 @@ static void bias_init(int in_pin, int out_pin)
const uint16_t insn[] = {
pio_encode_mov_not(pio_pins, pio_pins) | pio_encode_sideset(1, 1),
+ pio_encode_nop() | pio_encode_sideset(1, 0) | pio_encode_delay(15),
+ pio_encode_nop() | pio_encode_sideset(1, 0) | pio_encode_delay(15),
+ pio_encode_nop() | pio_encode_sideset(1, 0) | pio_encode_delay(15),
};
pio_program_t prog = {