Search found 56 matches

by ESP_Alfred
Mon Jul 03, 2017 11:11 am
Forum: ESP8266 SDK
Topic: 京东微联与ESP8266
Replies: 5
Views: 939

Re: 京东微联与ESP8266

1. RTOS 最新版本可以。
2. jd_demo 已经整合完毕。
3. 请发邮件到 feedback@espressif.com
by ESP_Alfred
Fri May 26, 2017 4:58 pm
Forum: ESP8266 SDK
Topic: ESP8266 light sleep with delay...
Replies: 1
Views: 376

Re: ESP8266 light sleep with delay...

hi, I had test your issue, It's working normally.
Notice:
If you set light-modem, make sure all timers are closed. refer to 《ESP8266 Non-OS SDK API Reference》.
by ESP_Alfred
Sun Jun 12, 2016 2:19 pm
Forum: ESP8266 SDK
Topic: RTOS-SDK GPIO interrupt is causing reset
Replies: 2
Views: 2390

Re: RTOS-SDK GPIO interrupt is causing reset

I have test your code, the key press is nomal. It's allowable that external pull-up replace the internal pull-up.

The attachment is key.c and key.h, for your reference.

if the problem haven't been solved, please gave me the uart log and bin file.
by ESP_Alfred
Wed May 25, 2016 1:55 pm
Forum: ESP8266 SDK
Topic: PWM调制波形异常。
Replies: 1
Views: 2650

Re: PWM调制波形异常。

新版本PWM的特性如下: 1.在原始的period周期之外,外加一个100us的时间进行duty的微调。 2.在微调的时间内,不能达到100%的高电平(毛刺就是微调)。 3.这样做的优点是总体的精度变高(周期越大,精度也会越高)。缺点是在duty接近100%时的,精度会变低(因为duty高时,精度低肉眼不易察 觉)。 实际上,我们还有另外一种PWM工作方式,可以到达100% Duty,周期也是准的,但总体精度可能没有这种方式高。 请参考 http://bbs.espressif.com/viewtopic.php?f=31&t=1378
by ESP_Alfred
Mon May 09, 2016 12:07 pm
Forum: ESP8266 SDK
Topic: HELP: UART Not Working & Clock Not Accurate after deep-sleep
Replies: 2
Views: 1133

Re: HELP: UART Not Working & Clock Not Accurate after deep-sleep

hi,yangtao 1) How to fix the UART issue after deep-sleep? > if you use add_low-power_deepsleep_cmd.py file to change your bin file, the UART couldn't print chip init logs. because UART FIFO is be cleaned in init process. 2) Does ESP8266's non-os sdk (1.5.2) change AHB clock/timer-clock in order to s...
by ESP_Alfred
Tue Apr 26, 2016 5:43 pm
Forum: ESP8266 SDK
Topic: [Solved] ESP8266 喚醒+DeepSleep 時間過長 (>250ms)
Replies: 3
Views: 1115

Re: ESP8266 喚醒+DeepSleep 時間過長 (>250ms)

我目前在從事一個感測裝置的項目,該裝置(AP Mode)約每5秒會起來發送一個廣播的資料,然後又立刻進入 Deep Sleep。 原本預期這個時間應該不長,但從量測 GPIO2 上的結果來看 (第一個 high 到最後一個 low),這個期間超過 250ms. 我試了 RTOS (1.4) / NONOS (1.5) 的 SDK,都有相似的結果。 網上有搜到,指 ESP8266可以 "Wake up and transmit packets in < 2ms",我沒預期有這麼好的數據,但250ms的差距很大。 不知有沒有高手/開發人員可以提供優化的方法? 另外,我發現呼叫...
by ESP_Alfred
Wed Mar 30, 2016 2:36 pm
Forum: General Q&A
Topic: [Solved] 关于smart config 无法进入SC_STATUS_LINK问题
Replies: 2
Views: 1299

Re: 关于smart config 无法进入SC_STATUS_LINK问题

hi,
We have optimized the Airkiss code. The attached is new library file. please try it.
thanks
by ESP_Alfred
Wed Mar 02, 2016 1:26 pm
Forum: ESP8266 HDK
Topic: ADC strange issue
Replies: 10
Views: 3284

Re: ADC strange issue

Thanks, I will try them tonight. I saw a couple of posts talking about a heap corruption issue (mainly relating to String) so wonder if this is related? In terms of the test, do you want me to flash these files and then upload my code? @Jimmy - I was able to run your test last night as it was limpi...
by ESP_Alfred
Tue Feb 02, 2016 10:22 pm
Forum: Tools
Topic: Re: Tool: Reduce more power consumption in Deep-sleep
Replies: 0
Views: 16305

Re: Tool: Reduce more power consumption in Deep-sleep

If your project includes the Deep-sleep mode to reduce power consumption, there is a script that helps to further reduce power consumption. You can use "add_low-power_deepsleep_cmd.py" to change your bin file ("eagle.flash.bin" or "boot.bin"). If you successfully run th...
by ESP_Alfred
Thu Nov 26, 2015 2:01 pm
Forum: ESP8266 SDK
Topic: SmartConfig: takes long time in SC_STATUS_LINK state
Replies: 5
Views: 1692

Re: SmartConfig: takes long time in SC_STATUS_LINK state

Hi ESP_Alfred, please see below the log. Please note that I have deliberately replaced my MAC addresses with XX in the logs. Thanks. Entering SmartConfig mode SC version: V2.5.1 f 0, scandone f r0, scandone SC_STATUS_FIND_CHANNEL TYPE: ESPTOUCH T|sniffer on ch:6 T|PHONE MAC: XX XX XX XX XX XX T|AP ...

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