ex1c.c

来自「基于单片机、nrf24e1发射接受程序」· C语言 代码 · 共 57 行

/*= ex1c.c =====================================================================
* 
 * Copyright (C) 2003 Nordic VLSI ASA
 * 
 * Author(s)     : Ole Saether
 * Support mail  : [e-mail]
 *
 * DESCRIPTION:
 *
 *   Hello World program.
 *
 *   The functionality is the same as in ex1a.asm.
 *
 * COMPILER:
 *  
 *  This program has been tested with Keil C51 V6.10 and V7.05.
 *
 * $Revision: 1 $
 *
 *==============================================================================
*/
#include <Nordic VLSI\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 
    TCON = 0x40;    // Start timer1
    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;
}