From 31d7a8c61326c6e74801c159e429e63ca90c06e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jan=20Hamal=20Dvo=C5=99=C3=A1k?= 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 = {