Search found 58 matches

by YimingLi
Mon Oct 16, 2017 11:14 am
Forum: ESP8266 SDK
Topic: 编译时提示`.text' will not fit in region `iram1_0_seg' 可能是什么原因?
Replies: 9
Views: 8562

Re: 编译时提示`.text' will not fit in region `iram1_0_seg' 可能是什么原因?

您好,我在能加的地方都加了ICACHE_FLASH_ATTR 常量加了ICACHE_RODATA_ATTR STORE_ATTR app目录下各目录编译后生成的.a文件总大小加起来303KB ld里面分配情况是 iram1_0_seg : org = 0x40100000, len = 0x8000 irom0_0_seg : org = 0x40210000, len = 0x5C000 现在一直提示../../../../xtensa-lx106-elf/bin/ld: .output/eagle/debug/image/eagle.app.v6.out section `.text' ...
by YimingLi
Thu Oct 05, 2017 10:57 pm
Forum: ESP8266 SDK
Topic: ESP8622 programmer using ESP8266
Replies: 4
Views: 1651

Re: ESP8622 programmer using ESP8266

The link doesn't give much information. Is this an USB-serial converter (like CP2102) and some connectors added? What ESP's can fit out of the box? I need ESP01 and ESP201. all of ESP-01, ESP-12x, ESP201 serials can fit the burning toolkit :) Since they are nearly the same as per the programming an...
by YimingLi
Thu Oct 05, 2017 10:47 pm
Forum: ESP8266 SDK
Topic: 想请问有关HSPI的几个问题
Replies: 5
Views: 4174

Re: 想请问有关HSPI的几个问题

SPI frequency is limited by the maximum frequency of the Master device. In case of the software controlled SPI on the ESP8266 , it is 80 MHz. ESP8266 HSPI做从设备时,实际可靠的SPI频率只能到20MHz。超过20MHz后,固件需要做特殊的处理,才可以达到40MHz。 As a slave, ESP8266 HSPI can reach only 20MHz for a reliable communication. Special hand...
by YimingLi
Thu Oct 05, 2017 10:40 pm
Forum: ESP8266 SDK
Topic: 编译时提示`.text' will not fit in region `iram1_0_seg' 可能是什么原因?
Replies: 9
Views: 8562

Re: 编译时提示`.text' will not fit in region `iram1_0_seg' 可能是什么原因?

您好,怎么解决的? 我在大部分函数前加了ICACHE_FLASH_ATTR,还是报section `.text' will not fit in region `iram1_0_seg' 因为iram1_0_seg空间有限,只有0x8000=32KBytes,如果采用上述做法之后,依然提示这个错误,那么可以进一步,将所有或部分的const常数,通过在声明处加上“ICACHE_RODATA_ATTR STORE_ATTR” ,也放置到flash里不要驻留iram1_0,例如:const char abc[] ICACHE_RODATA_ATTR STORE_ATTR = "Welco...
by YimingLi
Tue Sep 19, 2017 11:53 pm
Forum: ESP8266 HDK
Topic: Custom board. Can't flash.
Replies: 8
Views: 4101

Re: Custom board. Can't flash.

Hi, x = sampled from pins of (mtdo io0 io2) y = sampled from pins of (sd3 sd2 sd0) x=0 y=don't care -> remapping x=1 y=don't care -> uart boot (note: flash burn tools use this bootmode for burning) x=2 y=don't care -> jump boot x=3 y=don't care -> flash boot(note: normally we use this bootmode if im...
by YimingLi
Sat Sep 16, 2017 6:58 pm
Forum: ESP8266 SDK
Topic: ESP8622 programmer using ESP8266
Replies: 4
Views: 1651

Re: ESP8622 programmer using ESP8266

Hi, There is a tool for 'lazy' engineer:P One-press burning tools for ESP8266 modules which is very helpful for batch burning. With the burning tool, you only have to have one press on the button of the software to start the burning, and then the burning process will be completed automatically with ...
by YimingLi
Sat Sep 16, 2017 6:50 pm
Forum: ESP8266 SDK
Topic: ESP8266 crashes Randomly and does not come up or restart on its own
Replies: 2
Views: 1808

Re: ESP8266 crashes Randomly and does not come up or restart on its own

Hi, You may please provide a little more information about "crash". It might not be because the module get crashed, but because your module get disconnected from the ap or routers that you failed to ping the module. Normally once disconnected from the ap/router, the module will re-connect ...
by YimingLi
Sat Sep 16, 2017 6:23 pm
Forum: ESP8266 HDK
Topic: ESP8266 programming and debug via J-Link ??
Replies: 6
Views: 7097

Re: ESP8266 programming and debug via J-Link ??

Forget jlink etc, use printf, I would suggest. :p
by YimingLi
Sat Sep 16, 2017 6:17 pm
Forum: ESP8266 HDK
Topic: Custom board. Can't flash.
Replies: 8
Views: 4101

Re: Custom board. Can't flash.

Hi! I designed custom board based on ESP8266EX and W25Q32. ESP8266EX drives by another MCU that is responsible for boot mode selection for ESP8266EX. Hardware setup to put ESP8266EX to boot mode via UART: VCC = 3V. GPIO15 (MTDO) connected directly to the GND all time. Procedure of flashing is follo...
by YimingLi
Sun Sep 03, 2017 7:31 pm
Forum: ESP8266 SDK
Topic: Unexpected additional sectors erased using Flash Download Tool
Replies: 2
Views: 1280

Unexpected additional sectors erased using Flash Download Tool

Hi Espressif, We found that the Flash Download Tool might erase additional more sectors than expected during downloading. That is, if we download an image file, whose size may cover sectors less than sector N (a section size is 4096), and the download log also shows that burning to an address inside...

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