Subversion Repositories openmsp430

what's this?

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it's a simple example project for the MSP430 series MCU and the GCC port

of the mspgcc project. the project contains a makefile and uses assembler

and C sources. this time it is a software UART with Timer_A.

this example shows the following features:

 - Timer_A uart, full duplex

    o same pins as BSL (P1.1 TX, P2.2 RX)

    o it contains a reusable code

 - software FLL

   the watch crystal is used as reference and the main clock

   is adjusted to 1.536MHz on startup

 - use uprintf to print formated strings and do a printf

   emulation that prints to the serial port.

 - the main loop is a simple line editor. when a return character

   ('\r', usualy RETURN key) is received, it writes the received

   characters from the buffer to the serial port.

   connect a terminal at 9600,N,8,1 to try it out.

 - makefile

    o compile and link

    o include assembler files

    o convert to intel hex format

    o generate a listing with mixed C / assembly

required hardware

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 - a MSP430F1121 or larger device (any from the F1x series)

   connect pins P1.1 (TX) and P2.2 (RX) through level converters

   to a terminal. you can also use a BSL hardware, the same pins

   are used.

 - watch crystal 32.768kHz

 - optionaly a LED on P2.5  (470 Ohms series resistor to GND)

disclaimer

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this example is part of the mspgcc project http://mspgcc.sf.net

see license.txt for details.

chris