Files
ch32v203-eth-node/systick.c
kuwoyuki 8adc726b0b chore: debloat (remove platformio), onewire improvements
Squashed commit of the following:

commit 5f16309f629b9928d2134b85ae64af69bc3ebbcd
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Sun Nov 24 22:55:15 2024 +0600

    fix: Makefile, improve onewire retries

commit 55496a3bda941b52ff349dc75c9c06eb5a37c07d
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Mon Nov 18 00:41:18 2024 +0600

    fix: make onewire validity less strict

commit 3428a9bc9792508972ce3e7e4e35a64f047bca10
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Sun Nov 17 23:57:55 2024 +0600

    chore: rm bins

commit 1594e5ed430522b15466c8afa62ff7fb1b28947c
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Sun Nov 17 23:32:01 2024 +0600

    chore: unplatformiofy
2024-11-24 22:56:05 +06:00

47 lines
1.3 KiB
C

#include "systick.h"
#include "MQTT/mqtt_interface.h"
#include "ch32v003fun.h"
#include "debug.h"
// ms counter
volatile uint32_t systick_millis = 0;
void systick_init(void) {
SysTick->CTLR = 0;
SysTick->CMP = SYSTICK_ONE_MILLISECOND - 1;
SysTick->CNT = 0;
systick_millis = 0;
// Enable the SysTick IRQ
NVIC_SetPriority(SysTicK_IRQn, 0x60);
NVIC_EnableIRQ(SysTicK_IRQn);
/* Enable SysTick counter, IRQ, HCLK/1 */
SysTick->CTLR = SYSTICK_CTLR_STE | SYSTICK_CTLR_STIE | SYSTICK_CTLR_STCLK;
}
/*
* SysTick ISR - must be lightweight to prevent the CPU from bogging down.
* Increments Compare Register and systick_millis when triggered (every 1ms)
* NOTE: the `__attribute__((interrupt))` attribute is very important
*/
void SysTick_Handler(void) __attribute__((interrupt));
void SysTick_Handler(void) {
// if (toggle_state) {
// GPIOB->BSHR = (1 << 9); // Set PB9 high
// } else {
// GPIOB->BCR = (1 << 9); // Set PB9 low
// }
// toggle_state = !toggle_state;
// Increment the Compare Register for the next trigger
// If more than this number of ticks elapse before the trigger is reset,
// you may miss your next interrupt trigger
// (Make sure the IQR is lightweight and CMP value is reasonable)
SysTick->CMP += SYSTICK_ONE_MILLISECOND;
// clear irq
SysTick->SR = 0;
systick_millis++;
MilliTimer_Handler();
}