embedded/Lab1

============= QEMU Modeling =============

Prerquisites

• sudo apt-get install zlib1g-dev libsdl1.2-dev
• http://0xlab.org/~jserv/tmp/toolchain-2012_03.tar.bz2
  • Extract to Directory /usr/local/csl/arm-2012.03
    • cd /
    • tar jxvf toolchain-2012_03.tar.bz2
• PATCH </embedded/Lab1/0001-Fix-build-due-to-old-APIs.patch>_

STM32 Overview

• Powerful but Cheap
  • Wireless Connectivity
  • Computing/Prototyping
  • One for most use cases
  • open source: http://code.google.com/hosting/search?q=label:STM32
  • http://0xlab.org/~jserv/tmp/CM-STM32.pdf

.. image:: /STM32-P103-01.jpg

STM32 + QEMU

.. code-block:: prettyprint

git clone git://github.com/beckus/stm32_p103_demos.git
git clone git://github.com/beckus/SandboxQemu2.git qemu_stm32

cd qemu_stm32
git am 0001-Fix-build-due-to-old-APIs.patch
./configure --disable-werror --enable-debug \
    --enable-debug-tcg \
    --target-list="arm-softmmu" \
    --extra-cflags=-DDEBUG_CLKTREE \
    --extra-cflags=-DDEBUG_STM32_UART \
    --extra-cflags=-DSTM32_UART_NO_BAUD_DELAY \
    --extra-cflags=-DSTM32_UART_ENABLE_OVERRUN
make
cd ../stm32_p103_demos
git checkout -b final origin/final
make all
make blink_flash_QEMURUN
make uart_echo_QEMURUN_TEL

作業要求

• 設計 STM32 的程式，使得在按下 Button 時，於 UART 輸出 “Hello!”
• STM32 的程式須能與使用者互動，允許透過 UART 下指令控制週邊的狀態，至少要控制 LED 與查詢 Button 的狀態 (如按下的次數)
• (加分) 使用 Software interrupt

補充

• git log
• git log -p
• export PATH=/usr/local/csl/arm-2012.03/bin:$PATH