view target-utils/libcommon/cmd_r16.c @ 853:ae254ffeaec3

AT command interface works! The cause of the breakage was the same Nucleus API issue with NU_Create_Timer() which we encountered at the very beginning of this project with Riviera timers: the code in uartfax.c from TCS211 was passing 0 as the initial dummy value for the timer duration, and our FreeNucleus version doesn't like it. The fix is the same: pass 1 as the initial dummy value instead.
author Space Falcon <falcon@ivan.Harhan.ORG>
date Thu, 30 Apr 2015 01:46:26 +0000
parents f4fc449a64ea
children
line wrap: on
line source

/*
 * r16 hexaddr -- read a 16-bit register or memory location
 */

#include <sys/types.h>
#include "types.h"

void
cmd_r16(argbulk)
	char *argbulk;
{
	char *argv[2];
	u_long addr;

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 8, &addr) < 0) {
		printf("ERROR: argument must be a valid 32-bit hex address\n");
		return;
	}
	if (addr & 1) {
		printf("ERROR: unaligned address\n");
		return;
	}
	printf("%04X\n", *(volatile u16 *)addr);
}