关于nodemcu重启的问题

kkduoduo

最近在调试多个传感器加屏幕，发现nodemcu动态内存使用到46%左右时就会重启，怀疑多种问题仍然调试无果。故写了一个简单程序测试（详细代码如下），在上报温湿度的代码基础上，定义了3个字符串变量（String SMS0~SMS2），每个变量1000字节左右，当加入这3个变量后，动态内存占用48%，当串口调试信息提示==== needInit ====附近后重启（见附录）。而当注释掉这3个变量，动态内存使用45%，此时程序正常连接平台。已经更换过nodemcu，单独供电测试过。请问有朋友知道原因么，谢谢。（esp8266版本是2.7.1，blinker库是最新的）

1. String SMS0="121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghj";
   
2. 
   
3. String SMS1="gjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjh121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjgg3gfghjggfjhgjf121343gfgfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf12134hj";
   
4. 
   
5. String SMS2="ghjggfjhgjf121343gfghjggfjhgjf121343gjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjh121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfgfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjgg3gfghjggfjhgjf121343gfgfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf121343gfghjggfjhgjf12134hj";
   
6. 
   
7. #define BLINKER_WIFI
   
8. #include <Blinker.h>
   
9. char auth[] = "***";
   
10. char ssid[] = "***";
    
11. char pswd[] = "***";
    
12. BlinkerNumber HUMI("humi");
    
13. BlinkerNumber TEMP("temp");
    
14. #include <DHT.h>
    
15. #define DHTPIN D7
    
16. #define DHTTYPE DHT11 // DHT 11
    
17. DHT dht(DHTPIN, DHTTYPE);
    
18. uint32_t read_time = 0;
    
19. float humi_read, temp_read;
    
20. void dataRead(const String & data)
    
21. {
    
22. BLINKER_LOG("Blinker readString: ", data);
    
23. Blinker.vibrate();
    
24. uint32_t BlinkerTime = millis();
    
25. Blinker.print("millis", BlinkerTime);
    
26. }
    
27. 
    
28. void heartbeat()
    
29. {
    
30. HUMI.print(humi_read);
    
31. TEMP.print(temp_read);
    
32. }
    
33. 
    
34. void setup()
    
35. {
    
36. Serial.begin(9600);
    
37. BLINKER_DEBUG.stream(Serial);
    
38. BLINKER_DEBUG.debugAll();
    
39. pinMode(LED_BUILTIN, OUTPUT);
    
40. digitalWrite(LED_BUILTIN, LOW);
    
41. 
    
42. Blinker.begin(auth, ssid, pswd);
    
43. Blinker.attachData(dataRead);
    
44. Blinker.attachHeartbeat(heartbeat);
    
45. 
    
46. dht.begin();
    
47. }
    
48. 
    
49. void loop()
    
50. {
    
51. Blinker.run();
    
52. if (read_time == 0 || (millis() - read_time) >= 2000)
    
53. {
    
54. read_time = millis();
    
55. 
    
56. float h = dht.readHumidity();
    
57. float t = dht.readTemperature();
    
58. 
    
59. if (isnan(h) || isnan(t)) {
    
60. BLINKER_LOG("Failed to read from DHT sensor!");
    
61. return;
    
62. }
    
63. 
    
64. float hic = dht.computeHeatIndex(t, h, false);
    
65. 
    
66. humi_read = h;
    
67. temp_read = t;
    
68. 
    
69. }
    
70. }

复制代码

报错信息一般从以下位置开始，提示

[size=1em] exception (9)

，但调整内存占用，也出现过 在串口显示MQTT连接成功后，提示exception (28)后重启。

1. 23:43:43.629 -> [19021] ==== needInit ====
   
2. 23:43:43.629 -> [19021] message: /share/device?deviceName=66438E2ACAZFQ66OSCZRQRPF&key=1c******a5
   
3. 23:43:43.723 -> [19088] blinker server begin
   
4. 23:43:43.770 -> [19119] Freeheap: 23880
   
5. 23:43:58.844 -> [34334] HTTPS begin: https://iot.diandeng.tech/api/v1/user/device/share/device?deviceName=66438E2ACAZFQ66OSCZRQRPF&key=1c****a5
   
6. 23:43:58.985 -> [34341] HTTPS payload: /share/device?deviceName=66438E2ACAZFQ66OSCZRQRPF&key=<span style="display: inline !important; float: none; background-color: rgb(247, 247, 247); color: rgb(68, 68, 68); font-family: Microsoft YaHei,SimHei,Verdana,Arial,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; overflow-wrap: break-word; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">1c****a5</span>
   
7. 23:43:59.078 -> [34435] [HTTP] ... failed, error: connection refused
   
8. 23:43:59.125 ->
   
9. 23:43:59.125 -> Exception (9):
   
10. 23:43:59.172 -> epc1=0x40240141 epc2=0x00000000 epc3=0x00000000 excvaddr=0x000010ab depc=0x00000000
    
11. 23:43:59.219 ->
    
12. 23:43:59.219 -> >>>stack>>>
    
13. 23:43:59.266 ->
    
14. 23:43:59.266 -> ctx: bearssl
    
15. 23:43:59.266 -> sp: 3fff43b0 end: 3fff4820 offset: 0190
    
16. 23:43:59.313 -> 3fff4540:  3fff5b64 3fff5b48 3fff5064 4023fa70

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奈何col

确保8266package和blinker lib为最新

XlinliY.Zhang

运行的时候使用的内存并不是固定的

kkduoduo

奈何col 发表于 2020-8-9 00:32
确保8266package和blinker lib为最新

大老板，已经测试了2.7.4，仍然不行。（擦出了所有flash内容）

kkduoduo

XlinliY.Zhang 发表于 2020-8-9 01:30
运行的时候使用的内存并不是固定的

这如何理解

XlinliY.Zhang

kkduoduo 发表于 2020-8-9 11:22
这如何理解

长数组自己丢Flash里

kkduoduo

XlinliY.Zhang 发表于 2020-8-9 19:18
长数组自己丢Flash里

您说的没问题，放flash里面肯定节约内存，这里只是为了重复内存故障现象才如此定义。如果存在歧义，也可以加入一些其他代码来占用内存

kkduoduo

初步怀疑是平台bug，目前移植到blynk一切正常，定了10个1000字节的字符串，内存使用51%。建议大老板能抽空分析下，谢谢。@奈何col