如何解决大师冥想错误:使用自定义库时核心 0 恐慌禁止加载
我正在 ESP32 板上开发中值滤波器。该中值滤波器基于循环缓冲区。我在 main.c 中实现了过滤器,它工作得很好。然而,当我创建一个自定义库并从 main.c 调用该函数时,ESP32 只是重新启动并打印给定的错误消息。我正在使用 PlatformIO 和 FreeRTOS。
- 这是主程序中的过滤器:
#define FILTER_SIZE_IN_BITS (10)
#define FILTER_SIZE (1 << (FILTER_SIZE_IN_BITS))
uint16_t LO_filter_buffer[FILTER_SIZE];
uint32_t LO_filter_sum;
uint16_t *LO_filter_position;
static void analogRead(void *args)
{
register int i;
LO_filter_sum = 0;
LO_filter_position = LO_filter_buffer;
for (i = 0; i < FILTER_SIZE; i++)
LO_filter_buffer[i] = 0;
while (1)
{
LO_filter_sum -= *LO_filter_position;
LO = adc1_get_raw(ADC1_CHANNEL_4);
*LO_filter_position = LO;
LO_filter_sum += LO;
if (++LO_filter_position >= LO_filter_buffer + FILTER_SIZE)
{
LO_filter_position = LO_filter_buffer;
}
finallo = (uint32_t)(LO_filter_sum >> FILTER_SIZE_IN_BITS);
vTaskDelay(20 / portTICK_PERIOD_MS);
}
vTaskDelete(NULL);
}
这是库中的实现:
- main.c 文件:
#include "median.h"
#define FILTER_SIZE_IN_BITS (3)
#define FILTER_SIZE (1 << (FILTER_SIZE_IN_BITS))
static uint32_t filter_sum = 0;
static uint16_t filter_buffer[FILTER_SIZE] = {0};
static uint16_t *filter_position;
median_t Mittelwert(median_t new_value)
{
if (++filter_position >= filter_buffer + FILTER_SIZE)
{
filter_position = filter_buffer;
}
filter_sum -= *filter_position;
*filter_position = (uint16_t)new_value;
filter_sum += (uint16_t)new_value;
return (median_t)(filter_sum >> FILTER_SIZE_IN_BITS);
}
- main.h 文件:
#ifndef __median__
#define __median__
#include "stdint.h"
#include <stdbool.h>
#include "stdio.h"
typedef int32_t median_t;
median_t Mittelwert(median_t new_value);
#endif
- 错误信息:
Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x400d1065 PS : 0x00060d30 A0 : 0x800d0e3c A1 : 0x3ffba060
A2 : 0x00000000 A3 : 0x3ffb0034 A4 : 0x00060021 A5 : 0x00060023
A6 : 0x00000001 A7 : 0x00000000 A8 : 0x3ffb4148 A9 : 0x3ffb415c
A10 : 0x00000002 A11 : 0x81070000 A12 : 0x3ffba050 A13 : 0x3ffb67f0
A14 : 0x00000800 A15 : 0x7fffffff SAR : 0x0000001b EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000002 LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000
Backtrace:0x400d1062:0x3ffba060 0x400d0e39:0x3ffba080 0x400846a9:0x3ffba0d0
ELF file SHA256: dd5498559aa03c7d
有没有人通过从库中调用过滤器知道问题是什么?
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