uarttest.c
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上传日期:2008-01-29
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文件大小:1k
- /*
- * Copyright 2003 by Texas Instruments Incorporated.
- * All rights reserved. Property of Texas Instruments Incorporated.
- * Restricted rights to use, duplicate or disclose this code are
- * granted through contract.
- *
- */
- /* "@(#) DDK 1.11.00.00 11-04-03 (ddk-b13)" */
- /*
- * ======== uarttest.c ========
- */
- #include <std.h>
- #include <log.h>
- #include <gio.h>
- #include <iom.h>
- #ifdef _6x_
- extern far LOG_Obj trace;
- #else
- extern LOG_Obj trace;
- #endif
- /*
- * ======== main ========
- */
- Void main()
- {
- LOG_printf(&trace, "UART Test started!");
- }
- /*
- * ======== echo =========
- */
- Void echo()
- {
- GIO_Handle inChan, outChan;
- Char buf[12] = "Hello World ";
- Uns size = 12;
- Int status;
- inChan = GIO_create("/uart", IOM_INPUT, NULL, NULL, NULL);
- outChan = GIO_create("/uart", IOM_OUTPUT, NULL, NULL, NULL);
- if (inChan == NULL || outChan == NULL) {
- LOG_printf(&trace, "GIO_create failed");
- SYS_abort("GIO_create");
- }
- for (;;) {
- status = GIO_write(outChan, buf, &size);
- if (status < 0) {
- LOG_printf(&trace, "GIO_write error");
- SYS_abort("GIO_write");
- }
- status = GIO_read(inChan, buf, &size);
- if (status < 0) {
- LOG_printf(&trace, "GIO_write error");
- SYS_abort("GIO_read");
- }
- }
- }