ex1c.c

来自「nRF24E1 sample transmit & receiver」· C语言 代码 · 共 60 行

/*= ex1c.c =====================================================================
* 
 * Copyright (C) 2003, 2004 Nordic Semiconductor
 *
 * This file is distributed in the hope that it will be useful, but WITHOUT
 * WARRANTY OF ANY KIND.
 * 
 * Author(s): Ole Saether
 *
 * DESCRIPTION:
 *
 *   Hello World program.
 *
 *   The functionality is the same as in ex1a.asm.
 *
 * COMPILER:
 *
 *  This program has been tested with Keil V7.07a.
 *
 * $Revision: 5 $
 *
 *==============================================================================
*/
#include <Nordic\reg24e1.h>

void Init(void)
{
    TH1 = 243;      // 19200@16MHz (when T1M=1 and SMOD=1)
    CKCON |= 0x10;  // T1M=1 (/4 timer clock)
    PCON = 0x80;    // SMOD=1 (double baud rate)
    SCON = 0x52;    // Serial mode1, enable receiver
    TMOD = 0x20;    // Timer1 8bit auto reload 
    TR1 = 1;        // Start timer1
    P0_DIR |= 0x02; // P0.1 (RxD) is an input
    P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
}

void PutChar(char c)
{
    while(!TI)
        ;
    TI = 0;
    SBUF = c;
}

void PutString(const char *s)
{
    while(*s != 0)
        PutChar(*s++);
}

int main(void)
{
    Init();
    PutString("Hello World!\n");
    for(;;)
        ;
    return 0;
}