From c03cdb8657b94a5f379adedda5812eca49aec3a9 Mon Sep 17 00:00:00 2001
From: "jamesimmanuel.magsino@stud.h-da.de" <James Immanuel Magsino>
Date: Tue, 3 Dec 2024 12:46:33 +0100
Subject: [PATCH] hmm
---
src/main.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/src/main.c b/src/main.c
index 6f332b2..82dada6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -154,7 +154,7 @@ void init_pwm()
gpio_set_function(28, GPIO_FUNC_PWM);
volatile uint slice_num = pwm_gpio_to_slice_num(28);
- pwm_set_clkdiv(slice_num, 133);
+ pwm_set_clkdiv(slice_num, 125);
pwm_set_wrap(slice_num, 0xFFFF);
pwm_set_chan_level(slice_num, PWM_CHAN_A, 10);
pwm_set_enabled(slice_num, true);
@@ -162,10 +162,18 @@ void init_pwm()
void pwm_echo_init()
{
volatile uint slice_num = pwm_gpio_to_slice_num(27);
-
- pwm_set_clkdiv(slice_num, 1);
+ /*
+ // Count once for every 100 cycles the PWM B input is high
+ 25 pwm_config cfg = pwm_get_default_config();
+ 26 pwm_config_set_clkdiv_mode(&cfg, PWM_DIV_B_HIGH);
+ 27 pwm_config_set_clkdiv(&cfg, 100);
+ 28 pwm_init(slice_num, &cfg, false);
+ 29 gpio_set_function(gpio, GPIO_FUNC_PWM);
+ */
+ // count once for every 42 cycles the PWM B input is high
+ pwm_set_clkdiv(slice_num, 42);
pwm_set_wrap(slice_num, 0xFFFF);
- pwm_set_clkdiv_mode(slice_num, PWM_DIV_FREE_RUNNING);
+ pwm_set_clkdiv_mode(slice_num, PWM_DIV_B_HIGH);
pwm_set_enabled(slice_num, true);
}
int a = 0;
@@ -199,10 +207,11 @@ int main()
init_pwm();
pwm_echo_init();
- gpio_set_irq_enabled_with_callback(27, GPIO_IRQ_LEVEL_LOW, true, &callback);
+ gpio_set_irq_enabled_with_callback(27, GPIO_IRQ_LEVEL_HIGH, true, &callback);
while (1)
- ;
+ {
+ }
/*
timer_hw->dbgpause = 0;
gpio_init(27);
--
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