本帖最后由 ewrwer 于 2025-4-23 10:18 编辑
#技术资源# 使用了官方demo，修改了定时器的代码，系统时钟是4MHZ，分频4，使用的重装载值是999，理论上讲1ms中断一次，但是我这边用分析仪测试的是64ms中断一次，不知道是啥原因引起的
/******************************************************************************
* Copyright (C) 2016, Xiaohua Semiconductor Co.,Ltd All rights reserved.
*
* This software is owned and published by:
* Xiaohua Semiconductor Co.,Ltd ("XHSC").
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* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
*
* This software contains source code for use with XHSC
* components. This software is licensed by XHSC to be adapted only
* for use in systems utilizing XHSC components. XHSC shall not be
* responsible for misuse or illegal use of this software for devices not
* supported herein. XHSC is providing this software "AS IS" and will
* not be responsible for issues arising from incorrect user implementation
* of the software.
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/******************************************************************************/
/** \file main.c
**
** A detailed description is available at
** @link Sample Group Some description @endlink
**
** - 2016-02-16 1.0 XYZ First version for Device Driver Library of Module.
**
******************************************************************************/
/******************************************************************************
* Include files
******************************************************************************/
#include "ddl.h"
#include "bt.h"
#include "lpm.h"
#include "gpio.h"
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
/******************************************************************************
* Global variable definitions (declared in header file with 'extern')
******************************************************************************/
/*******************************************************************************
* Local variable definitions ('static')
******************************************************************************/
static volatile uint32_t u32BtTestFlag = 0;
static volatile uint32_t u32Cnt = 0;
/*******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
/*******************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
/*******************************************************************************
* BT1中断服务函数
******************************************************************************/
void Bt1Int(void)
{
if (TRUE == Bt_GetIntFlag(TIM1))
{
Bt_ClearIntFlag(TIM1);
//u32BtTestFlag = 0x02;
Gpio_SetIO(1, 4, !Gpio_GetIO(1, 4));
Gpio_SetIO(0, 3, !Gpio_GetIO(0, 3));
}
}
/*******************************************************************************
* BT定时功能测试 （重载模式）
******************************************************************************/
en_result_t BtTimerTest(void)
{
stc_bt_config_t stcConfig;
en_result_t enResult = Error;
uint16_t u16ArrData = 999;
uint16_t u16InitCntData = 0;
stcConfig.pfnTim1Cb = Bt1Int;
//P25设置为门控使能IO
Gpio_SetFunc_TIM1_GATE_P25();
stcConfig.enGateP = BtPositive;
stcConfig.enGate = BtGateDisable;
stcConfig.enPRS = BtPCLKDiv4;
stcConfig.enTog = BtTogDisable;
stcConfig.enCT = BtTimer;
stcConfig.enMD = BtMode2;
//Bt初始化
if (Ok != Bt_Init(TIM1, &stcConfig))
{
enResult = Error;
}
//TIM1中断使能
Bt_ClearIntFlag(TIM1);
Bt_EnableIrq(TIM1);
EnableNvic(TIM1_IRQn, 3, TRUE);
//设置重载值和计数值，启动计数
Bt_ARRSet(TIM1, u16ArrData);
Bt_Cnt16Set(TIM1, u16InitCntData);
Bt_Run(TIM1);
//此处进入中断……
while(1)
{
//判断是否第二次进入中断
if (0x02 == u32BtTestFlag)
{
u32BtTestFlag = u32BtTestFlag & (~0x02);
if (1 == u32Cnt)
{
Bt_Stop(TIM1);
enResult = Ok;
break;
}
u32Cnt++;
}
}
return enResult;
}
/**
******************************************************************************
** \brief Main function of project
**
** \return uint32_t return value, if needed
**
** This sample
**
******************************************************************************/
int32_t main(void)
{
volatile uint8_t u8TestFlag = 0;
//CLK INIT
stc_clk_config_t stcClkCfg;
Clk_SetPeripheralGate(ClkPeripheralGpio, TRUE);
stcClkCfg.enClkSrc = ClkRCH;
stcClkCfg.enHClkDiv = ClkDiv1;
stcClkCfg.enPClkDiv = ClkDiv1;
Gpio_SetFunc_HCLKOUT_P24();
Clk_Init(&stcClkCfg);
//打开GPIO、BT外设时钟
Clk_SetPeripheralGate(ClkPeripheralGpio, TRUE);
Clk_SetPeripheralGate(ClkPeripheralBt, TRUE);
Gpio_InitIO(1,4 ,GpioDirOut );
Gpio_InitIO(0,3 ,GpioDirOut );
//BtTimerTest();
if(Ok != BtTimerTest())
{
u8TestFlag |= 0x02;
}
while (1);
}
/******************************************************************************
* EOF (not truncated)
******************************************************************************/
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