TC_Chu's Point

STM32F107 + uCOSII + uCGUI use IAR EWARM on GoldBull Board

Download STM32-107CV-T01.rar

uC-OSII download from Micrium

uC-GUI source from GoldBull's CDROM

Demo Program from GoldBull's CDROM

Verify the tool chain and lib are ready to use.

Simavr, an AVR microcontroller simulator

via Make

Renesas R8C use Data Flash as Constant Data Storage (IAR)

#define FLASH _Pragma("location=\"FLASH\"")

FLASH const sensor_t  sr1 @ 0x2400 = {0,17,10,0,-1,-1,-1,0,0,9000};
FLASH const sensor_t  sr2 @ 0x2420 = {1,17,11,0,-1,-1,-1,0,9000,0};

I use R8C/27 32k Version so the Flash memory is @ 0x2400 -> 0x2BFF total 2KByte

B2 Spice v.5 Electronic Circuit Simulation Software

Simple Spiace Simulator

Home Page

Arduino Autonomous Robot

via Arduino Fun

Project Home Page

ㄚ 真懷念我的Robot 上班後就直接打入冷宮....

進度報告 - take 5

我的第一台機器終於搬去測試了 空空的桌上換上了一支新的手臂 修正Motor Controller 中

Open Loop and Close Loop

令人難以置信的居然有人是 OpenLoop Control 的支持者 雖然說Stepping Motor是很精確的東西 但是難道加上一點Feedback control 不應該會讓整個System更穩定嗎? 我相信沒有完美的原件和完美的加工 但是我相信有比較好的系統設計方法 可以讓不完美的事物加起來會變得比較完美

State or Stateless

最近我設計的那台xx檢驗機上 有12顆MCU 其中1顆是Master 接受PC下指令 而其他11顆是Slave接收 Master的指令 我的設計有點像Web的Client-Server 而11顆Slave是Server 接受Master(Client)的　request 執行動作　而我也自然的Follow　Web Server的Stateless design. 就是說Slave本身是沒有記憶狀態的　你叫我做　做完我就回到Initial狀態　這樣子設計簡單11顆都很一致

但是今天有人更改設計　造成我的Slave必須要記憶狀態　也時候真搞不懂這些人　要抄人家的設計就好好的抄改也要有意義的改　改的一點意義都沒有　自作聰明是最糟糕的　其實修改的正是第一次抄的時候自作聰明的　好不容易測試出來人家的設計就是比較好　要改回跟別人一樣的時候　又給我來這一招　真是..........

給你抄就好好的抄　就是不懂才要抄　不要裝懂

Review: mbed NXP LPC1768 microcontroller

mbed is a next-generation 32-bit microcontroller platform. It’s a prototyping and teaching tool somewhat along the lines of Arduino. On steroids. With claws and fangs. Other contenders in this class include the MAKE Controller, STM32 Primer and Primer 2, Freescale Tower, and Microchip’s PIC32 Starter Kit. The mbed hardware has a number of advantages (and a few disadvantages) compared to these other platforms, but what really sets it apart is the development environment: the entire system — editor, compiler, libraries and reference materials — are completely web-based. There is no software to install or maintain on the host system.

via Hack A Day

Selection Guide of Low Cost Tools for Cortex-M3

via Your Electronics Open Source

...

Finally, IAR is the winner in the proprietary suite, since it offers a low cost J-Link ARM for Non-Commercial-Use at 98USD with 30 full functional and 32KB limited compilers. It is consists of JLINK hardware with Flash breakpoint, downloader and GDB server. Although it doesn't offer RDI interface, it allows developer in a complete environment or alternative open source tool chain (like CodeSourcery G++). Please download v5.11 for gdb server.

HJTAG server and HJTAG USB emulator is another source works with IAR and Keil. It is available at 159 USD or 750 RMB in China.

OpenJTAG (FTDI based)/OpenOCD plus GCC is another choice, which may works in Windows and Linux. But you have to work with scripts and command line. Only recommended for Linux fans and experienced developers. According to some reports, it also works with IAR EWARM.

...

via Your Electronics Open Source

進度報告 - take 4 怪Bug

這兩個星期都一直在找這個怪Bug 就是Slave MCU會自己亂動 原本的設計就算亂動也只會動一點距離 但是卻是轉了好多圈 抓了很久終於抓到 是Master 經由I2C 送 Command出來時 會少送一個Byte

Slave端是知道原因了 可是Master端卻完全不知道為何會這樣 只好先做預防措施 真正的原因還要慢慢查

Generate stepper-motor speed profiles in real time

Generate stepper-motor speed profiles in real time

真正的"印刷"電路板

Xerox's process uses ink containing silver metal that can be used to wire up processing circuitry. It works on surfaces such as plastic that earlier have shown an inconvenient tendency to melt under the high temperature of liquid silver; Xerox's process works with an ink compound with a much lower temperature, the company said.

via cnet

進度報告 - take 3 - Refactor

Code refactoring is the process of changing a computer program's internal structure without modifying its external functional behavior or existing functionality, in order to improve internal quality attributes of the software. Reasons include to improve code readability, to simplify code structure, to change code to adhere to a given programming paradigm, to improve maintainability, to improve performance, or to improve extensibility.

via Wiki 

最近這三個星期 重寫了系統很多Block 事實上10月初時 系統就已經可以運作的有生有色 只是老闆挑三揀四的 只好東改西改 有時候需要改到舊的Code時 就乾脆趁機重寫部分的Code 一方面更新功能一方面增加穩定度 最重要的是 之前急急忙忙寫好的Code 其實都有些不懂硬湊上去的 也在這時候好好的了解一下問題的所在 對系統也比較有信心

幸好我還算靈活 但是改程式對很多工程師來說是件很痛苦的事 對我來說我還覺得蠻有趣的 因為給你一段時間讓你的Code更穩定 到是很不錯的機會

最後的Bug - take2

在還未找到最後的Bug時　老闆忽然來關切　希望為了穩定度加上一些功能.....:( 　因此在最後的Bug還沒抓到前　我必須要在多寫一些Bug進去　哈哈　因為　"有改必有錯　有錯就要改" 當然啦也證明沒有最後的Bug這樣的東西　因為還沒找到前你又會寫一堆進去　哈哈哈

Micrium Unveils New Book: uC/OS-III Real-Time Kernel

 
WESTON, FL—September 8, 2009—The author of the definitive text on RTOS technology, MicroC-OS-II The Real-Time Kernel, Jean Labrosse, president and CEO of Micrium has authored a new book, and this one comes with a twist.  uC/OS-III, the Real-Time Kernel covers Micrium’s newest kernel by the same name, and is offered as a two-part book accompanied by an STMicroelectronics STM32F107-based evaluation board  (uC/Eval-STM32F107). The book and board combo target serious programmers and college students who need to understand and create programs based on the timesaving features of a real-time kernel.

Part I of the text covers the internals of the new kernel without going into each detail of the code, as did Labrosse’s previous book. In this version, the emphasis is on the internals, features, API calls, and where and how to use an RTOS, all presented in a clear and useful way, and accompanied by a wealth of diagrams.  Part II provides specific examples for using uC/OS-III on the popular STM32 (Cortex M3) processor architecture.

via http://micrium.com/page/press_room/news/id:40

Debug...最後的Bug

其實是沒有所謂最後一隻Bug 只是當Bug出現的頻率越來越低 以我的系統為例 之前跑不完40Round就會出現Bug (一個Round約30秒) 76Sample 要跑96個Round 到現在跑了很多次測試才會出現一次 越來越不好找出Bug 與程式間的關係 因為關係越來越像Random Output. 當然啦要抓也是可以就是要Log下很多資料然後一筆一筆看 到底問題是發生在哪邊

Robot plays Rock Band on the iPhone use Arduino

via Engadget

我喜歡懶惰的人 懶到連Game都要讓robot幫你玩 懶惰是人類文明進步的動力

char , i hate it.

char 8bits 1byte. save the memory space. But

char test;

test = -1;

if (test == -1) ---> you are fucked.

You can assign -1 to char but you cannot test it.

I hate char.

ps.IAR compiler can set if you want char to be singed or unsinged.

新工具 I2C Sniffer

終於可以看見I2C Bus上到底有哪些資料再亂送了

這邊買的

進度報告 - take 2

今天終於把系統都搞定恢復正常了

static int rampupstep =0; 討厭的static 變數

static 變數 基本上就是個 Global 變數(因為是在Heap內) 只是 只能在宣告的function中access. 其實真是個大麻煩 因為當你的Fuction在很多不同的情況下使用時 你必須要能夠Initilize哪個Static變數 因此你的function就要增加控制 static 變數 initilization 的程式 偏偏人都很懶 只有有必要時才會加code 只是一加code 又要改function call 的 特徵(增加控制變數) 最簡單的白癡方法就是改成Global 變數

雖然不是好方法 但是卻是比較方便的方法 哈哈哈哈

Multi-button checker with debouncing use Arduino

via Adafruit blog

GMC-4 4bit Potable Computer

這才叫Portable Computing. Instant-On 100ms. Ready to Run. Ready to Program.Fun-To Play 從學生時代接觸了數位邏輯設計後就被各式各樣的Computer,Calculator,CPU,MCU給吸引 尤其是越簡單的系統越有趣 過去的小教授到現在的Arduino都是很棒的最簡系統 這台GMC-4更是極致阿

馬達加減速控制

每次只要交出這樣的報告給老闆 老闆就會說是不是假資料.... 哈哈哈 上次的蜘蛛圖也是 完全Match預測的結果...只能說我實在太強啦