From 51b786f841aafc1ed19af2aeade448f7a95d79f1 Mon Sep 17 00:00:00 2001
From: "jamesimmanuel.magsino@stud.h-da.de" <James Immanuel Magsino>
Date: Tue, 3 Dec 2024 12:48:53 +0100
Subject: [PATCH] more hmmm
---
src/main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/main.c b/src/main.c
index 82dada6..976995b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -121,7 +121,8 @@ void callback(uint gpio, uint32_t events)
{
- uint32_t event3 = events;
+ volatile uint slice_num = pwm_gpio_to_slice_num(27);
+ volatile duration = pwm_get_counter(slice_num) * 42;
/* volatile uint another_slice_num = pwm_gpio_to_slice_num(27);
if (events & GPIO_IRQ_LEVEL_HIGH)
@@ -171,6 +172,7 @@ void pwm_echo_init()
29 gpio_set_function(gpio, GPIO_FUNC_PWM);
*/
// count once for every 42 cycles the PWM B input is high
+ // one cycle approximately equal to 20 ms
pwm_set_clkdiv(slice_num, 42);
pwm_set_wrap(slice_num, 0xFFFF);
pwm_set_clkdiv_mode(slice_num, PWM_DIV_B_HIGH);
@@ -211,7 +213,7 @@ int main()
while (1)
{
- }
+ }
/*
timer_hw->dbgpause = 0;
gpio_init(27);
--
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