timer1.c

zigee jn5121 串口双向通信开发实用C源程序

/****************************************************************************
 *
 * MODULE:             Timer1.c
 *
 * COMPONENT:          $RCSfile: $
 *
 * VERSION:            $Name: $
 *
 * REVISION:           $Revision: $
 *
 * DATED:              $Date: 30/06/06  $
 *
 * STATUS:             $State: $
 *
 * AUTHOR:             Gordon MacNee
 *
 * DESCRIPTION
 * code segment to demonstrate the operation of the timers
 * running in two modes of PWM
 * no interrupts are used in these routines
 *
 * CHANGE HISTORY:
 *
 * $Log: $
 *
 *
 * LAST MODIFIED BY:   $Author: pc1 $
 *                     $Modtime: $
 *
 *
 ****************************************************************************
 *   This software is owned by Jennic and/or its supplier and is protected
 *   under applicable copyright laws. All rights are reserved. We grant you,
 *   and any third parties, a license to use this software solely and
 *   exclusively on Jennic products. You, and any third parties must
 *   reproduce the copyright and warranty notice and any other legend of
 *   ownership on each copy or partial copy of the software.
 *
 *   THIS SOFTWARE IS PROVIDED 揂S IS? JENNIC MAKES NO WARRANTIES, WHETHER
 *   EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED
 *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
 *   ACCURACY OR LACK OF NEGLIGENCE. JENNIC SHALL NOT, IN ANY CIRCUMSTANCES,
 *   BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, SPECIAL,
 *   INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON WHATSOEVER.
 *
 *   Copyright Jennic Ltd 2005, 2006. All rights reserved
 *
 ****************************************************************************/

/****************************************************************************/
/***        Include files                                                 ***/
/****************************************************************************/

 #include <jendefs.h>
 #include <AppHardwareApi.h>

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/***        Macro Definitions                                             ***/
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/***        Type Definitions                                              ***/
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/****************************************************************************/
/***        Local Function Prototypes                                     ***/
/****************************************************************************/

/****************************************************************************/
/***        Exported Variables                                            ***/
/****************************************************************************/

/****************************************************************************/
/***        Local Variables                                               ***/
/****************************************************************************/

/****************************************************************************/
/***        Exported Functions                                            ***/
/****************************************************************************/

/****************************************************************************/
/***        Local Functions                                               ***/
/****************************************************************************/

PRIVATE void vProcessEventQueues(void);

PRIVATE void sent_uart0();


/****************************************************************************
 *
 * NAME: vTimerConfig
 *
 * DESCRIPTION:
 * PWM output from timer0 in Delta Sigma mode
 * with a low period of 0x8000 and a high of (0xffff - 0x8000)
 *
 * PWM output from timer1 in standard PWM mode
 * with a low period of 0x8000 and a high of (0xffff - 0x8000)
 *
 * PARAMETERS:      Name            RW  Usage
 * None.
 *
 * RETURNS:
 * None.
 *
 * NOTES:
 * In this mode the period of timer0 is fixed
 * at 2^16 or 2^17 and the u16Lo the SPACE period
 ****************************************************************************/
PRIVATE void sent_uart0( )
{
/* Set up uart0 */
vAHI_UartEnable(E_AHI_UART_0);
/* Reset the Tx and Rx */
vAHI_UartReset(E_AHI_UART_0, E_AHI_UART_TX_RESET, E_AHI_UART_RX_RESET);
/* set baud rate */
vAHI_UartSetClockDivisor(0, E_AHI_UART_RATE_38400);
/* set parity, start bits, number data bits */
vAHI_UartSetControl(E_AHI_UART_0,
E_AHI_UART_EVEN_PARITY,
E_AHI_UART_PARITY_DISABLE,
E_AHI_UART_WORD_LEN_8,
E_AHI_UART_1_STOP_BIT,
E_AHI_UART_RTS_HIGH);
/* clear reset */
vAHI_UartReset(E_AHI_UART_0, E_AHI_UART_TX_ENABLE, E_AHI_UART_RX_ENABLE);
/* output message */
char acstring[] = “Hello World”;
char *pcstring = acstring;
while (*pcstring)
{
vAHI_UartWriteData(E_AHI_UART_0, *pcstring);
pcstring++;
}
}


/****************************************************************************
 *
 * NAME: AppColdStart
 *
 * DESCRIPTION:
 *
 * PARAMETERS:      Name            RW  Usage
 * None.
 *
 * RETURNS:
 * None.
 *
 * NOTES:
 * Entry point for a power on reset or wake from sleep mode.
 ****************************************************************************/
PUBLIC void AppColdStart(void)
{

    /* Initialise stack and hardware interfaces.  */
    (void)u32AHI_Init();

    /* configure and start timer 0 and 1 running different PWM types */
    void sent_uart0();

    /* just sit in this loop and let the hardware run the PWM */
    while(1)
    {
    }
}

/****************************************************************************
 *
 * NAME: AppWarmStart
 *
 * DESCRIPTION:
 * Entry point for a wake from sleep mode with the memory contents held. We
 * are not using this mode and so should never get here.
 *
 * PARAMETERS:      Name            RW  Usage
 * None.
 *
 * RETURNS:
 * None.
 *
 * NOTES:
 * None.
 ****************************************************************************/
PUBLIC void AppWarmStart(void)
{
    AppColdStart();
}




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/***        END OF FILE                                                   ***/
/****************************************************************************/