Search found 15 matches

by vowstar
Tue Sep 27, 2016 11:09 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: 10756

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

上面的回答答非所问,不知道误导了多少人

在所有非中断函数之前加 ICACHE_FLASH_ATTR ,然后重新编译。
如果还不行,就要用更激进的做法,改ld脚本把所有的常数常量放到flash,读出时4字节对齐读出。然后关掉switch的jumptable,把一些中断中永远用不到的函数放在flash里。
by vowstar
Tue May 19, 2015 12:05 am
Forum: ESP8266 SDK
Topic: Update(150414) :Flash download tool , Look over here !
Replies: 13
Views: 107308

Re: Update(150414) :Flash download tool , Look over here !

Bug report: :!:
flash download tool v1.2 150512 can't detect DIO mode
by vowstar
Thu Mar 05, 2015 1:48 pm
Forum: ESP8266 SDK
Topic: please support printf for float
Replies: 2
Views: 6721

Re: please support printf for float

Please consider look at NodeMCU's source code.

NodeMCU firmware of esp8266 have solved this problem, it have standard vsprintf and sprintf. You could use vsprintf to get your printf.

https://github.com/nodemcu/nodemcu-firm ... /c_stdio.c
by vowstar
Mon Feb 16, 2015 10:55 am
Forum: ESP8266 SDK
Topic: 【BETA】esp_iot_sdk_v0.9.6_b1 released !
Replies: 22
Views: 35617

Re: 【BETA】esp_iot_sdk_v0.9.6_b1 released !

Very thanks!
by vowstar
Mon Jan 26, 2015 6:29 pm
Forum: ESP8266 SDK
Topic: New FEATURES gathering
Replies: 82
Views: 103331

Re: New FEATURES gathering

1. printf support %g, %f.
2. flash can hardware access by 1 Byte.
3. functions default in iromtext without IROM0_ATTR.
4. * more string constant in flash.
5. more RAM
6. more RODATA moved on flash.

* If 2 is OK, 4 is not problem.
by vowstar
Sat Jan 17, 2015 2:18 am
Forum: ESP8266 SDK
Topic: Is that anything wrong with lwipopts.h in freertos SDK?
Replies: 0
Views: 1893

Is that anything wrong with lwipopts.h in freertos SDK?

Hello, I want compile esp freertos sdk and use official source code(got on github@15/01/2015). When compiled the lwip source code with default lwipopts.h, the output liblwip.a is different form official's, and missing many references. Is that anything wrong with lwipopts.h in freertos SDK?
by vowstar
Tue Dec 02, 2014 3:16 am
Forum: ESP8266 SDK
Topic: New FEATURES gathering
Replies: 82
Views: 103331

Re: New FEATURES gathering

Sniffer mode in 802.11n

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