Search found 45 matches

by tobewinner
Thu Sep 20, 2018 4:49 pm
Forum: ESP8266 SDK
Topic: FLASH芯片从W25Q80BL换为W25Q80DV后,系统运行经常崩溃
Replies: 0
Views: 2185

FLASH芯片从W25Q80BL换为W25Q80DV后,系统运行经常崩溃

之前我们用的W25Q80BL,工作在40Mhz QIO ,系统运行正常 本次生产时,供应商反馈W25Q80BL要停产了,后续供货是W25Q80DV,测试时我们发现,在频繁地FLASH读写时(工作在40Mhz QIO),系统经常崩溃 reset info:2,x 或 reset info:3,x 我们仔细对比了两款flash,发现他们的特性上: 1,电压要求一样; 2,工作最大频率DV更高(可达104Mhz) 3,Tpuw(Time Delay Before Write Instruction)特性不一样,DV 的最小值为5ms,BL的最小值为1ms,这个是否会有影响。 esp官方对这款FLAS...
by tobewinner
Sat May 27, 2017 5:40 pm
Forum: ESP8266 SDK
Topic: select返回-1,errno却是0
Replies: 5
Views: 4630

Re: select返回-1,errno却是0

在之前的rtos_sdk中是工作正常的,官方能否测试一下
再使用多条链接时,可能会同时存在的超过3条,能否试一下,select为什么会返回-1
by tobewinner
Thu Apr 27, 2017 3:00 pm
Forum: ESP8266 SDK
Topic: will frc1_count be reset after frc1_load_value is write?
Replies: 3
Views: 1735

Re: will frc1_count be reset after frc1_load_value is write?

Thanks.
That is, if the frc1_count reg is 123, and I write 300 to the frc1_load reg, then the frc1_count reg will be 300 right now?
by tobewinner
Tue Apr 25, 2017 2:28 pm
Forum: ESP8266 SDK
Topic: will frc1_count be reset after frc1_load_value is write?
Replies: 3
Views: 1735

will frc1_count be reset after frc1_load_value is write?

in the timer interrupt , i need to reset timer interval.
to be more accurate, how to set the reg values?
if i rewrite the frc1_load_value, will the frc1_count be reset to frc1_load_value?
by tobewinner
Mon Apr 10, 2017 4:49 pm
Forum: ESP8266 SDK
Topic: select返回-1,errno却是0
Replies: 5
Views: 4630

select返回-1,errno却是0

我使用的是ESP_RTOS_SDK git上170316的版本
在多次操作TCP时,偶尔select会返回-1,但得到的errno是0,同时select无法做到让出cpu
这是什么原因呢?是不是170316的版本TCP_WND无法设置导致?
我原本想自己编译third_part中的lwip看看log,但编译出来的.a在生成最后的镜像时,提示`iram1_0_seg' error
by tobewinner
Thu Apr 06, 2017 12:38 am
Forum: ESP8266 SDK
Topic: Linking Libraries to Flash ICACHE_FLASH_ATTR
Replies: 4
Views: 3322

Re: Linking Libraries to Flash ICACHE_FLASH_ATTR

You can write a different linker script that will force code from specific libraries into the Flash section. Go look at the Arduino code base where they use the technique to ensure that library routines are in Flash. I compile third_party/lwip myself, and the same problem(segmentled section `.text'...
by tobewinner
Thu Sep 29, 2016 3:05 pm
Forum: ESP8266 SDK
Topic: 静态变量如何放到flash中
Replies: 3
Views: 3932

Re: 静态变量如何放到flash中

panyao wrote:有人知道吗?????

看一下这篇文章:
viewtopic.php?f=7&t=2795
by tobewinner
Wed Sep 21, 2016 5:23 pm
Forum: ESP8266 SDK
Topic: system_get_time() 返回奇怪的值
Replies: 2
Views: 4741

Re: system_get_time() 返回奇怪的值

system_get_rtc_time呢?
by tobewinner
Tue Aug 16, 2016 10:33 am
Forum: ESP8266 SDK
Topic: 静态变量如何放到flash中
Replies: 3
Views: 3932

Re: 静态变量如何放到flash中

panyao wrote:有人知道吗?????

你可以存储到flash中,需要时读出来,然后使用
目前好像不能直接定义在flash中
by tobewinner
Tue Aug 09, 2016 2:09 pm
Forum: ESP8266 SDK
Topic: FLASH_DOWNLOAD_TOOL的源码如何编译?
Replies: 3
Views: 4134

Re: FLASH_DOWNLOAD_TOOL的源码如何编译?

ESP_Rubin wrote:你好,
目前没有专门介绍编译该工具的文档

会有计划做吗?源码我也看了,我们产线生产时需要烧写固定的出厂信息,源码中如何修改,我们自己可以看一下。但是工程是在windows下编译,都用到了哪些插件包,能否有个简单说明或教程?

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