README
This directory contains examples for the stm32f429i discovery board. The PCB should be labelled either MB1075B, and contains a user USB port, 2.4" QVGA TFT LCD display, 64Mbits external SDRAM and ST MEMS gyroscope.
http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/PF259090
Chuck McManis README
These examples are designed to demonstrate the use of libopencm3 with the STM32F4Discovery-DISCO board. This board has a 2.2" TFT LCD touchscreen on it, a MEMS gyroscope, and 8MB of SDRAM.
If you move through the examples in this order, the code from the previous example will be used in the next example:
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miniblink - verify that you can build a program, link it, and download it to the board. Blinks the GREEN LED at about 2Hz
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tick_blink - Clock setup, Systick setup, LED GPIO setup and blinking.
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usart_console - Program a USART on the board as a console (requires clonsing jumpers on your discovery board connecting USART1 to the programmer)
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usart_irq_console - Program a USART on the board as a console with an interrupt driven receive routine. This allows you to interrupt execution with ^C as you can on a Linux process.
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sdram - SDRAM setup, using the usb port as a console, which sets up the SDRAM
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spi - Serial Peripheral Interface example which talks to the MEMS gyroscope on the DISCO board.
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lcd-serial - Activates the TFT using the SPI port (serial) and holds a frame buffer in the SDRAM area.
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lcd - Now uses the new LCD "driver" peripheral to refresh the contents with what is in memory, very fast, write in memory and it appears on screen.
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dma2d - The 2D graphics accelerator device which displays various animations on the LCD using code from all of the previous examples.