Search found 12 matches

by ESP_puff
Thu Feb 16, 2017 9:53 am
Forum: AT+ Commands
Topic: Please Help. My board is not working.
Replies: 2
Views: 70

Re: Please Help. My board is not working.

Hello Riu,
AT command should go along with a newline
if you send "AT+GMR", it will not give you any response
But if you send "AT+GMR" and add a new line after that, it will work
by ESP_puff
Thu Jan 19, 2017 10:10 am
Forum: AT+ Commands
Topic: [ESP01] CIPSTART can't connect to the socket
Replies: 1
Views: 98

Re: [ESP01] CIPSTART can't connect to the socket

Hi CharlyC64,
That seems like the same question I have answered. I haven't noticed this question before.
Thanks
by ESP_puff
Thu Jan 19, 2017 10:05 am
Forum: ESP8266 SDK
Topic: Problem with AT+CIPSTART don't connect, say: ERROR CLOSE
Replies: 3
Views: 202

Re: Problem with AT+CIPSTART don't connect, say: ERROR CLOSE

Hi CharlyC64, This is the log information that you get AT+CIFSR +CIFSR:APIP,"192.168.4.1" +CIFSR:APMAC,"06:00:00:00:06:00" +CIFSR:STAIP,"8.0.0.0" +CIFSR:STAMAC,"0c:02:0d:f0:0c:02" OK From it, STAIP is 8.0.0.0 that is not correct. You should check why that happ...
by ESP_puff
Wed Jan 18, 2017 11:40 am
Forum: ESP8266 SDK
Topic: Unable to boot after moving to RTOS SDK 1.5.0
Replies: 1
Views: 129

Re: Unable to boot after moving to RTOS SDK 1.5.0

Hi ajay.bhargav, After you finish compiling, system will tell you the right place for downloading the firmware. You just follow the indication and can boot it. And there is a rule that esp_init_data_default.bin should be downloaded at the end of flash. If you select 0x7c000 as the download location ...
by ESP_puff
Wed Jan 18, 2017 11:19 am
Forum: ESP8266 SDK
Topic: 9600 baud for Download Tool
Replies: 1
Views: 118

Re: 9600 baud for Download Tool

Hi user001,
The speed for flash download tool only affects the speed of overriding flash. It won't affect the use of ESP8266.
If you want to use Arduino to control ESP8266, the only way is to use AT command through UART. Otherwise you need to do secondary development.

Thanks
by ESP_puff
Wed Jan 18, 2017 11:13 am
Forum: ESP8266 SDK
Topic: Problem with AT+CIPSTART don't connect, say: ERROR CLOSE
Replies: 3
Views: 202

Re: Problem with AT+CIPSTART don't connect, say: ERROR CLOSE

Hi CharlyC64, Please check whether you have started such a TCP server waiting for connection. TCP client should connect the same AP with TCP server. Station AP that ESP8266 get is 8.0.0.0. That is a quite stranger IP address. So you cannot make TCP connection with 54.108.131.123. If you want to make...
by ESP_puff
Mon Nov 21, 2016 2:37 pm
Forum: ESP8266 SDK
Topic: 请问AT指令取到的RSSI的值的聚会范围是多少?
Replies: 1
Views: 2884

Re: 请问AT指令取到的RSSI的值的聚会范围是多少?

Hi cnsxgh,
RSSI的取值范围没有一个固定的范围,它是接收信号强度,不仅跟发送功率有关,更主要是跟环境、空气衰减有关。所以强行限定一个范围意义不是很大。建议采用>-40dbm,-40~-50dbm,-50~-70dbm,-70~-90dbm,<-90dbm来划分你的格子。具体阈值可以根据需要修改。

谢谢
by ESP_puff
Wed Oct 26, 2016 9:49 am
Forum: ESP8266 SDK
Topic: 请教一个有关Flash布局的问题
Replies: 1
Views: 475

Re: 请教一个有关Flash布局的问题

Hi wsptr,
这两处确实存在矛盾,我们那张non-fota的布局图有问题,感谢指正,我们马上进行修改。
正确的布局地址,应该是non-RTOS在0x10000上,RTOS在0x20000上。

谢谢!
by ESP_puff
Wed Oct 26, 2016 9:31 am
Forum: ESP8266 SDK
Topic: 基于RTOS的SDK出现Fatal exception (20),无法定位是什么问题
Replies: 1
Views: 597

Re: 基于RTOS的SDK出现Fatal exception (20),无法定位是什么问题

Hi zhangjinliang,
如果你烧写的是user1.1024.new.2.bin【或者同类型的bin文件】的话,去user1.1024.new.2.S中查找对应的地址,如本例中的epc3=0x40101784。找到是哪里出现的这个问题,再去增加相应的调试。同样,rtn_add=0x4010193b这个地址也可以查询一下相应的地址,并找出具体的返回地址及问题所在。
如果你烧写的是eagle.irom0text.bin,那就去eagle.S中查找异常地址。

如果查找不到对应的地址,说明程序崩溃问题发生在中断或者ROM中有代码问题
by ESP_puff
Tue Oct 18, 2016 8:26 pm
Forum: ESP8266 SDK
Topic: 请教实例工程的flash map 问题
Replies: 1
Views: 313

Re: 请教实例工程的flash map 问题

你好,Falcon
这个例程不能使用512k的flash来烧写,因为user1.bin的大小已经超过了236k,因此可选择的最小flash大小为1024kB(512k+512k),所以masterkey的布局地址应该放在0x7E000,才是正确的。

Thanks

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