嘿堆栈溢出社区，
非常感谢这个社区，对我有很大帮助。但是，从现在开始，我一直陷于困境，无法在网络上找到任何解决方案。
使用ESP8266芯片非常有趣。那里有许多简单的示例，说明如何使用ESP连接到服务器。目前，我正在编写嵌套类以创建不同的客户端连接。
我喜欢使用Ticker / Timer对象（定期或一次回调）创建“子任务”以释放CPU。但是，一旦我创建了一个新的WiFiClient对象并调用了Ticker对象的回调函数，当客户端尝试连接到主机时，我将收到运行时错误。
包含我的整个项目和类会很混乱，所以我写了这个小代码，但是它将说明我的问题。
两个功能void post(int var) and void postPtr(int var)可以单独调用，例如在loop（）中成功。但是，一旦我将其中一个功能附加到股票报价回调中，我就会收到运行时错误。
#ifdef DEBUG_ESP_PORT
#define DEBUG_MSG(...) DEBUG_ESP_PORT.printf( __VA_ARGS__ )
#define debugmode 1
#else
#define debugmode 0
#define DEBUG_MSG(...)
#endif
#include <ESP8266WiFi.h>
#include <Ticker.h>
#ifndef STASSID
#define STASSID "###SSID###"
#define STAPSK "###PWK###"
#endif
Ticker myTicker;
Ticker* myTickerPtr;
WiFiClient* myClientPtr;
const char* ssid = STASSID;
const char* password = STAPSK;
const char* host = "192.168.10.40";
const uint16_t port = 8080;
const char* postMessage = "POST /plug HTTP/1.1\r\nContent-Type: application/x-www-form-urlencoded; charset=UTF-8\r\nContent-Length: 14\r\nConnection: close\r\n\r\nname=2&value=1";
static int prevTime=millis();
int cnt=0;
int packages=0;
int speed=0;
//#########################################################################
// checking time duration for code execution
int time() {
int tmp = millis();
int value = tmp - prevTime;
prevTime = tmp;
return value;
}
//#########################################################################
// simple connection / package speed test
void speedtest() {
speed = (cnt - packages)*5;
packages = cnt;
}
//#########################################################################
// connect to host, send a post message, stop connection
void post(int var) {
WiFiClient client;
DEBUG_MSG("[DONE %dms] Client[%d] waiting for connection... \n", time(), var);
while (!client.connect(host, port)) {delay(10);}
DEBUG_MSG("[DONE %dms] Client[%d] connected \n", time(), var);
client.println(postMessage);
client.printf("[DONE %dms] Client[%d] Data Package[%d] Sent. Avg speed: %d\n\n", time(), var, cnt, speed);
DEBUG_MSG("[DONE %dms] Client[%d] Data Package[%d] Sent. Avg speed: %d\n\n", time(), var, cnt, speed);
client.stop();
cnt++;
}
//#########################################################################
// connect to host, send a post message, stop connection (using a WifiClient Pointer)
void postPtr(int var) {
myClientPtr = new WiFiClient;
DEBUG_MSG("[DONE %dms] ClientPtr[%d] waiting for connection... \n", time(), var);
while (!myClientPtr->connect(host, port)) {delay(10);}
DEBUG_MSG("[DONE %dms] ClientPtr[%d] connected \n", time(), var);
myClientPtr->println(postMessage);
myClientPtr->printf("[DONE %dms] ClientPtr[%d] Data Package[%d] Sent. Avg speed: %d\n\n", time(), var, cnt, speed);
DEBUG_MSG("[DONE %dms] ClientPtr[%d] Data Package[%d] Sent. Avg speed: %d\n\n", time(), var, cnt, speed);
myClientPtr->stop();
delete myClientPtr;
cnt++;
}
//#########################################################################
void setup() {
if (debugmode) {
Serial.begin(115200);
while (!Serial) {delay(10);}
}
DEBUG_MSG("\n\n");
DEBUG_MSG("[DONE %dms] Serial done \n", time());
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
DEBUG_MSG("[DONE %dms] Waiting for WiFi connection... \n", time());
while (!WiFi.isConnected()) { delay(10);}
DEBUG_MSG("[DONE %dms] WiFi connected. IP %s\n", time(), WiFi.localIP().toString().c_str());
myTicker.attach_ms(200, speedtest);
//R U N T I M E E R R O R - while in callback function - STACK OVERFLOW !!!
myTickerPtr = new Ticker;
myTickerPtr->once_ms(100, post, 0x02);
//or
//myTickerPtr->attach_ms(100, post, 0x02);
}
//#########################################################################
void loop() {
// calling functions, working fine...
post(0x01);
postPtr(0x01);
//ESP.deepSleep(0);
}
调试消息：
[DONE 0ms] Serial done
[DONE 5ms] Waiting for WiFi connection...
[DONE 185ms] WiFi connected. IP 192.168.10.88
[DONE 101ms] Client[2] waiting for connection...
Soft WDT reset
>>>stack>>>
ctx: sys
sp: 3fffecb0 end: 3fffffb0 offset: 01b0
3fffee60: 00000000 4020e220 00000030 4010097c
3fffee70: 3ffee63c 3fffeef0 00000030 4020e220
3fffee80: 00000000 3fffeef0 3fffeef0 402034c1
3fffee90: 00001f90 3fffeea0 00000008 60000600
3fffeea0: 401052ec 001fbdcb 3ffee700 00001f90
3fffeeb0: 3ffee63c 00001f90 3fffeef0 40202c54
3fffeec0: 40204810 280aa8c0 402013f0 0000000a
3fffeed0: 3ffe87a4 0000000a 0000000a 402013fb
3fffeee0: 3ffee63c 00000002 3ffe84e0 4020266e
3fffeef0: 40204788 00000000 00001388 00000001
3fffef00: 00000000 00000000 3ffedfc0 00d99aa9
3fffef10: 4010505e 0014fa1c 3ffedfc0 60000600
3fffef20: 00d9d2f2 3ffedfc0 3ffef1a4 40230809
3fffef30: 4023084e 3fffdab0 00000000 3fffdcb0
3fffef40: 3ffedfd0 3fffdad0 3ffee6a8 402040c7
3fffef50: 40000f49 40000f49 3fffdab0 40000f49
3fffef60: 40000e19 40001878 00000002 00000000
3fffef70: 3fffff10 ffffffff ffffffff 401049d0
3fffef80: 401049d6 00000002 00000000 54e55bf8
3fffef90: 4010000d 6f3d99f3 6dad4d79 c13de55d
3fffefa0: 00000000 3fffef3c 00000000 3fffff38
3fffefb0: 3fffffc0 00000000 00000000 feefeffe
3fffefc0: feefeffe feefeffe feefeffe feefeffe
3fffefd0: feefeffe feefeffe feefeffe feefeffe
3fffefe0: feefeffe feefeffe feefeffe feefeffe
...
...
3ffffc20: feefeffe feefeffe feefeffe feefeffe
3ffffc30: feefeffe feefeffe feefeffe feefeffe
3ffffc40: feefeffe feefeffe feefeffe feefeffe
3ffffc50: feefeffe feefeffe feefeffe feefeffe
3ffffc60: feefeffe feefeffe feefeffe feefeffe
3ffffc70: 00000003 00000000 0000000a 00000000
3ffffc80: 00000003 00000000 0000000a 00000000
3ffffc90: feefeffe feefeffe feefeffe feefeffe
3ffffca0: 00000000 a0000000 00000000 0000001c
3ffffcb0: 00003000 feefeffe 00003000 00000000
3ffffcc0: 3ffffe20 00000000 3ffffe20 4020bf66
3ffffcd0: 0000a000 3ffffdc3 3ffe8e01 00000008
3ffffce0: 4022a65a 3ffeedec 40207ce0 0000000d
3ffffcf0: 3ffffe20 0000000d 3ffffe20 4020bf66
3ffffd00: 3ffffd80 3ffef434 3ffffd30 00000000
3ffffd10: 3ffe8cb0 40229717 3ffeedec 4020bea0
3ffffd20: 3ffffe20 3ffef434 3ffffd80 40207de0
3ffffd30: 0000000d 0000002c 0000002c 00000001
3ffffd40: 00000000 00000001 3ffffe20 4020bf66
3ffffd50: 3ffffdc3 3ffe8681 00000000 4021f23f
3ffffd60: 3ffed780 4021ee10 40221480 3ffe8681
3ffffd70: 00000000 3ffe8682 3ffffe20 4020c150
3ffffd80: 00000000 0000000d 00000000 00000000
3ffffd90: 0000000d 0000002f 40302073 3ffed878
3ffffda0: 3ffed8b0 40221480 3ffed780 aa55aa55
3ffffdb0: 3ffed110 40220d8c 3ffed08c 33000012
3ffffdc0: 00353239 4021edd4 3ffed110 00000012
3ffffdd0: 4021ed9f 3ffed08c 00000000 40232c0d
3ffffde0: 3fffff50 3fffff20 00000010 3ffe8304
3ffffdf0: 00000002 00000000 00000020 401014c2
3ffffe00: 3ffe8cb2 401048ac 3ffec420 3ffee6a8
3ffffe10: 00000001 40103acf 3ffece78 402096c9
3ffffe20: 40103f32 3ffe84ec 00000010 ffff0208
3ffffe30: 3ffffed0 0000003f 3fffc200 00000022
3ffffe40: 40103a16 0000002c 7fffffff 00000002
3ffffe50: 0000012c 00000030 0000001e ffffffff
3ffffe60: 4010288b 00080000 3fffff40 40203d5c
3ffffe70: 00000000 0000000a 00002200 4000050c
3ffffe80: 00000000 00000000 0000001f 401051a9
3ffffe90: 00000000 00000000 0000001f 401051a9
3ffffea0: 4000050c 00000030 00000010 ffffffff
3ffffeb0: 402041d4 00000030 00000011 ffffffff
3ffffec0: 402041d4 000000a0 3fffc704 00000001
3ffffed0: 00000000 00000000 00000000 fffffffe
3ffffee0: ffffffff 3fffc6fc 00000001 3ffe851c
3ffffef0: 00000000 3fffdad0 3ffee6a8 00000030
3fffff00: 401052ec 0014fa1c 3ffef1a4 00000000
3fffff10: 3ffedfc0 3ffef1a4 00000020 401009a2
3fffff20: 00000000 0014800a 402036bc 3ffef42c
3fffff30: 00000000 00000064 00000002 4020369e
3fffff40: 4020262c 4020e220 00000020 401009a2
3fffff50: 00000000 3ffee608 00000014 3ffee6a8
3fffff60: 00000f55 3ffee608 3ffef42c 4020259c
3fffff70: 00000000 00000000 00000000 00000000
3fffff80: 402023ac 580aa8c0 402043e0 402043cc
3fffff90: 00000000 00000000 00000001 4020415d
3fffffa0: 3fffdad0 00000000 3ffee674 402041ee
<<<stack<<<
ets Jan 8 2013,rst cause:2, boot mode:(1,6)
ets Jan 8 2013,rst cause:4, boot mode:(1,6)
wdt reset
如果有任何帮助，建议或建议，我将不胜感激。感谢您阅读：D