Search found 12 matches

by roc2
Wed Dec 28, 2016 1:53 pm
Forum: General Q&A
Topic: esp8285 flash
Replies: 2
Views: 1251

esp8285 flash

Is there any more detail document about esp8285? And how to flash the firmware to esp8285 if uesing the flash download tools, please tell me the detail. :D :D :D
by roc2
Fri Dec 16, 2016 11:31 am
Forum: ESP8266 SDK
Topic: esp8266 gpio interrupt
Replies: 1
Views: 799

esp8266 gpio interrupt

When calling a gpio interrupt handler, how to calculate the time of when a interrupt occur to start excuting the interrupt handler? :? :? :?
And how to decrease the time of gpio interrupt delay??
by roc2
Thu Dec 15, 2016 7:30 pm
Forum: ESP8266 SDK
Topic: ESP interrupt latency
Replies: 12
Views: 4755

Re: ESP interrupt latency

Any information about the latency of peripheral (HSPI) interrupts related to the ETS_SPI_INTR_ATTACH(); API function? Or what is the interrupt latency in general for the ESP? cross posted here: http://bbs.espressif.com/viewtopic.php?f=6&t=359#p1323 Best regards, mculibrk Hi, mculibrk! Is your p...
by roc2
Thu Dec 15, 2016 3:04 pm
Forum: ESP8266 HDK
Topic: High priority interrupts
Replies: 3
Views: 4598

Re: High priority interrupts

Hi, i am also looking for a solution to have a faster GPIO interrupt. Entering and reading and input with the standard API functions takes >2.5us which is way too slow (at 160MHz this is around 400 cycles!!). Could you find a solution? A high priority GPIO interrupt would be nice. Or do you think t...
by roc2
Thu Dec 15, 2016 3:02 pm
Forum: ESP8266 HDK
Topic: High priority interrupts
Replies: 3
Views: 4598

Re: High priority interrupts

:D hi, is this question solved, and how to solve it?
by roc2
Mon Dec 05, 2016 5:08 pm
Forum: General Q&A
Topic: esp8266 start-up process
Replies: 3
Views: 819

Re: esp8266 start-up process

Hi: your problem is comprehensive,if you want to know some detail,you can consult this two documents. http://espressif.com/sites/default/files/documentation/20a-esp8266_rtos_sdk_programming_guide_cn.pdf and http://espressif.com/sites/default/files/documentation/esp8266_quick_start_guide_cn.pdf.If y...
by roc2
Mon Dec 05, 2016 2:54 pm
Forum: ESP8266 SDK
Topic: start-up process
Replies: 1
Views: 446

start-up process

I just want to know the process of esp8266 chip start-up, who can give me a detail describe of it(from the chip power on to the program main handler start). :) And wether the flash is need to access after the main handler start?? :? :?
by roc2
Mon Dec 05, 2016 2:52 pm
Forum: General Q&A
Topic: esp8266 start-up process
Replies: 3
Views: 819

esp8266 start-up process

I just want to know the process of esp8266 chip start-up, who can give me a detail describe of it(from the chip power on to the program main handler start). :) And wether the flash is need to access after the main handler start?? :? :?
by roc2
Fri Nov 25, 2016 10:59 am
Forum: General Q&A
Topic: 【Feedback】求助:关于LIGHT-SLEEP功耗
Replies: 11
Views: 3992

Re: 【Feedback】求助:关于LIGHT-SLEEP功耗

您好,我完全copy您的代码。采用2.0.0版本,只是加了user_rf_cal_sector_set函数。但是从电流测试结果来看,还是无法进入light sleep,只能进modem sleep。请问会是什么原因?
by roc2
Sat Nov 19, 2016 4:41 pm
Forum: General Q&A
Topic: Need help for Light sleep mode[Done]
Replies: 7
Views: 11143

Re: Need help for Light sleep mode[Done]

I have the same trouble with you.In light sleeps' forcing mode ,I do not expect ESP8266 to reconnect after wakeup.According to my test,it wastes 500ms to reconnnect.
We hope that Espressss' enginner can give us suggestion.

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