Search found 138 matches

by costaud
Wed May 27, 2015 11:31 am
Forum: ESP8266 HDK
Topic: GPIO 重新開機時是否可以維持狀態
Replies: 2
Views: 2519

Re: GPIO 重新開機時是否可以維持狀態

alexchang wrote:想請問一個技術問題,如果我們實做考慮用一個 timer 每天或每週重新開機,我們希望外接的裝置電流保持開或關,所以可以保持某一個 GPIO 腳位固定 1 或 0 嗎?
還是說需要 latch 配合才能達成呢?


Hi,
In SDK v1.1.0 , system_restart() will call a new software reset function that keeps the IO level stable.
by costaud
Tue May 26, 2015 3:34 pm
Forum: ESP8266 SDK
Topic: SDK 1.1.0 problems
Replies: 16
Views: 9101

Re: SDK 1.1.0 problems

Can you please also explain the following changes? Is there a pull-down option on the gpio pins or is there not? What does "pullup2" do? diff -r esp_iot_sdk_v1.0.1/include/eagle_soc.h esp_iot_sdk_v1.1.0/include/eagle_soc.h 187c187 < #define PERIPHS_IO_MUX_PULLDWN BIT6 --- > #define PERIPH...
by costaud
Tue May 26, 2015 11:05 am
Forum: ESP8266 SDK
Topic: error with sdk 1.1.0
Replies: 6
Views: 4961

Re: error with sdk 1.1.0

seems something removed? /user/user_main.c:241: undefined reference to `wdt_feed' build/app_app.a(gpio16.o): In function `gpio16_input_get': Makefile:247: recipe for target 'build/app.out' failed /driver/gpio16.c:97: undefined reference to `PIN_PULLDWN_DIS' driver/gpio16.c:98: undefined reference t...
by costaud
Tue May 19, 2015 1:12 am
Forum: ESP8266 SDK
Topic: Update(150414) :Flash download tool , Look over here !
Replies: 13
Views: 104567

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

vowstar wrote:Bug report: :!:
flash download tool v1.2 150512 can't detect DIO mode

What's your flash type.
Of course we can't cover all of the hundreds of flash IDs and types.
If there are new type of flash that we do not cover yet, we will add to the flash-info-list of this tool.
by costaud
Mon May 18, 2015 11:03 am
Forum: ESP8266 SDK
Topic: Firmware protection
Replies: 8
Views: 5498

Re: Firmware protection

How about :
burn a key which is generated from chip-id to flash.
After boot, check chip id and the key value , run while(1) if not match.
by costaud
Mon May 18, 2015 10:53 am
Forum: ESP8266 SDK
Topic: Weird (debug) ouptut on UART1?
Replies: 2
Views: 3788

Re: Weird (debug) ouptut on UART1?

Hi, with latest SDK(1.0.1), after reboot I get following chars from debug output(UART1). uart settings are: PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK); uart_init(BIT_RATE_115200, BIT_RATE_115200); Output is .rl.l|. l`|.... .ll.b|.l.rbl.b rnnlnnbl.b.pllrlr lprn`.....l......b.nb...
by costaud
Fri May 08, 2015 8:49 pm
Forum: Tools
Topic: Flash Download Tool
Replies: 0
Views: 295567

Flash Download Tool

Download ESP8266 Getting Started Guide EN 下载 ESP8266 Getting Started Guide 中文版 UPDATE on 2016.11.14 Download the latest Flash Download Tool . UPDATE on 150916: 1.fix the bug that tool does not show the MAC correctly for 48bit version of EFUSE. 2.update MAC reading functions flash_download_tool_pyth...
by costaud
Sat Apr 18, 2015 1:08 am
Forum: ESP8266 SDK
Topic: Uart driver with transmit buffer & interrupt
Replies: 4
Views: 6515

Re: Uart driver with transmit buffer & interrupt

tve wrote:Does anyone have some code to buffer uart output (TX) and send characters to the uart using an interrupt? The driver in the AT demo only uses interrupt for RX. Thanks!

BTW: does anyone know how deep the uart TX fifo is?


Demo here:
viewtopic.php?f=7&t=48&p=173#p173
by costaud
Tue Apr 14, 2015 4:48 pm
Forum: ESP8266 SDK
Topic: ESP8266 Demo板下载程序后不能运行
Replies: 3
Views: 4088

Re: ESP8266 Demo板下载程序后不能支行

Hi,
这款demo板用的40M晶振。
使用flash_download_tool_v0.9.3.1下载,下载时晶振选择为40M。

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