文件列表:

UART RS-232 HyperTerminal (ASM)\main.asm (13941, 2006-05-26)
UART RS-232 HyperTerminal (ASM)\sicnames.h (2236, 2006-05-26)
UART RS-232 HyperTerminal (ASM)\uart.dpj (3694, 2006-09-17)
UART RS-232 HyperTerminal (ASM)\uart.dpj.bak (3682, 2006-05-26)
UART RS-232 HyperTerminal (ASM)\uart.mak (3111, 2006-09-18)
UART RS-232 HyperTerminal (ASM)\uart.pcf (3023, 2006-09-18)
UART RS-232 HyperTerminal (ASM)\uartlib.asm (12031, 2006-05-26)
UART RS-232 HyperTerminal (ASM)\uartlib.h (890, 2006-05-26)
UART RS-232 HyperTerminal (ASM) (0, 2006-09-26)

**************************************************************************************************** ADSP-BF533 EZ-KIT Lite UART Example Analog Devices, Inc. DSP Division Three Technology Way Norwood, MA 02062 Date Created: 04/03/03 ____________________________________________________________________________________________________ This directory contains an example ADSP-BF533 UART Example Project. The example illustrates autobaud detection and UART polling and interrupt operation. Files contained in this directory: uart.dpj VisualDSP++ project file uart.mak Make file main.asm Main assembly source file uartlib.asm Assembly library file containing some UART subfunctions uartlib.h .extern directives for uartlib.asm library functions sicnames.h some more SIC register and bit names readme.txt this file ____________________________________________________________________________________________________ CONTENTS I. FUNCTIONAL DESCRIPTION II. IMPLEMENTATION DESCRIPTION III.OPERATION DESCRIPTION I. FUNCTIONAL DESCRIPTION II. IMPLEMENTATION DESCRIPTION The Blackfin replies with a string send by polling operation. It returns also the calculated UART divisor latch value of the DLH:DLL register pair. Furthermore it sends another string using interrupt mode. Afterward it performs simple echo operation based on RX interrupts. Every received character will be sent back to the TX line. III. OPERATION DESCRIPTION - Open the project "uart.dpj" in an ADSP-BF533 EZ-KIT Lite session in the VisualDSP Integrated Development Environment (IDDE). - Under the "Project" tab, select "Build Project" (program is then loaded automatically into DSP). - Connect the EZ-KIT to the PC using a 1:1 EIA-232 serial cable. - Invoke any terminal program, for example the Windows Hyperterminal. Choose any bit rate you like, but make sure that you use 8-bit, no parity format. Don't use any handshake, such as XON/XOFF software handshake or RTS/CTS hardware handshake! Also make sure echo mode is off. If using Hyperterminal this can be done by selecting Properties from the file menu and clicking on the ASCII Setup button from the Settings tab. - Once terminal connection is established, select "Run" from the "Debug" tab on the menu bar of VisualDSP. - Press the '@' key (ASCII 0x40) in the terminal program to start autobaud detection. - See the character echo back in the terminal program.

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