/******************************************************************************
* Copyright (C) 2017, Huada Semiconductor Co.,Ltd All rights reserved.
*
* This software is owned and published by:
* Huada Semiconductor Co.,Ltd ("HDSC").
*
* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
*
* This software contains source code for use with HDSC
* components. This software is licensed by HDSC to be adapted only
* for use in systems utilizing HDSC components. HDSC shall not be
* responsible for misuse or illegal use of this software for devices not
* supported herein. HDSC is providing this software "AS IS" and will
* not be responsible for issues arising from incorrect user implementation
* of the software.
*
* Disclaimer:
* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
* WARRANTY OF NONINFRINGEMENT.
* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
* SAVINGS OR PROFITS,
* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
* FROM, THE SOFTWARE.
*
* This software may be replicated in part or whole for the licensed use,
* with the restriction that this Disclaimer and Copyright notice must be
* included with each copy of this software, whether used in part or whole,
* at all times.
*/
/******************************************************************************/
/** \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 "uart.h"
#include "gpio.h"
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
#define SLAVEADDR 0xc0
/******************************************************************************
* Global variable definitions (declared in header file with 'extern')
******************************************************************************/
/******************************************************************************
* Local type definitions ('typedef')
******************************************************************************/
/******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
/******************************************************************************
* Local variable definitions ('static') *
******************************************************************************/
volatile uint8_t u8TxData[2] = {0xaa,0x55};
volatile uint8_t u8RxData[2] = {0x00};
uint8_t u8TxCnt=0,u8RxCnt=0;
/*****************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
void App_PortInit(void);
void App_UartCfg(void);
//时钟配置为24MHz
void App_ClkCfg(void)
{
M0P_SYSCTRL->RCH_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C08ul))); //Loader 4MHz Trimming value
M0P_SYSCTRL->RCH_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C06ul))); //Loader 8MHz Trimming value
M0P_SYSCTRL->RCH_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C04ul))); //Loader 16MHz Trimming value
M0P_SYSCTRL->RCH_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C00ul))); //Loader 24MHz Trimming value
SystemCoreClock = 24000000;
}
/**
******************************************************************************
** \brief Main function of project
**
** \return uint32_t return value, if needed
**
** This sample
**
******************************************************************************/
int32_t main(void)
{
//App_ClkCfg();
//UART端口初始化
App_PortInit();
//串口模块配置
App_UartCfg();
//发送地址后，触发中断，后续发送数据
M0P_UART0->SBUF = (1<<8)|SLAVEADDR;
while(1);
}
//UART0中断
void Uart0_IRQHandler(void)
{
if(Uart_GetStatus(M0P_UART0, UartRC))
{
Uart_ClrStatus(M0P_UART0, UartRC); //清除中断状态位
u8RxData[u8RxCnt]=Uart_ReceiveData(M0P_UART0); //发送数据
u8RxCnt++;
if(u8RxCnt>1) //如果已接收两个字节
{
Uart_DisableIrq(M0P_UART0,UartRxIrq); //禁止接收中断
}
}
if(Uart_GetStatus(M0P_UART0, UartTC))
{
Uart_ClrStatus(M0P_UART0, UartTC); //清除中断状态位
Uart_SendDataIt(M0P_UART0, u8TxData[u8TxCnt++]);//发送数据
if(u8TxCnt>1) //如果已发送两个字节
{
u8TxCnt = 0;
u8RxCnt = 0;
Uart_DisableIrq(M0P_UART0,UartTxIrq); //禁止发送中断
Uart_EnableIrq(M0P_UART0,UartRxIrq); //使能接收中断
}
}
}
//串口模块配置
void App_UartCfg(void)
{
stc_uart_cfg_t stcCfg;
stc_uart_baud_t stcBaud;
DDL_ZERO_STRUCT(stcCfg);
DDL_ZERO_STRUCT(stcBaud);
Sysctrl_SetPeripheralGate(SysctrlPeripheralUart0,TRUE); ///<使能UART0外设时钟门控开关
///<UART Init
stcCfg.enRunMode = UartMskMode3; ///<模式3
stcCfg.enStopBit = UartMsk1bit; ///<1bit停止位
stcCfg.enMmdorCk = UartMskDataOrAddr; ///<多机模式时
stcCfg.stcBaud.u32Baud = 9600; ///<波特率9600
stcCfg.stcBaud.enClkDiv = UartMsk8Or16Div; ///<通道采样分频配置
stcCfg.stcBaud.u32Pclk = Sysctrl_GetPClkFreq(); ///</<获得外设时钟（PCLK）频率值
Uart_Init(M0P_UART0, &stcCfg); ///<串口初始化
///<UART中断使能
Uart_ClrStatus(M0P_UART0,UartRC); ///<清接收请求
Uart_ClrStatus(M0P_UART0,UartTC); ///<清接收请求
Uart_EnableIrq(M0P_UART0,UartTxIrq); ///<使能串口接收中断
EnableNvic(UART0_2_IRQn, IrqLevel3, TRUE); ///<系统中断使能
}
//串口引脚配置
void App_PortInit(void)
{
stc_gpio_cfg_t stcGpioCfg;
DDL_ZERO_STRUCT(stcGpioCfg);
Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio,TRUE); ///<使能GPIO外设时钟门控开关
stcGpioCfg.enDir = GpioDirOut;
stcGpioCfg.enPu = GpioPuEnable;
stcGpioCfg.enDrv = GpioDrvH;
stcGpioCfg.enOD = GpioOdEnable;
stcGpioCfg.bOutputVal = TRUE;
Gpio_Init(GpioPortA,GpioPin9,&stcGpioCfg);
Gpio_SetAfMode(GpioPortA,GpioPin9,GpioAf1); ///<配置PA09 为UART0 TX
stcGpioCfg.enDir = GpioDirIn;
Gpio_Init(GpioPortA,GpioPin10,&stcGpioCfg);
Gpio_SetAfMode(GpioPortA,GpioPin10,GpioAf1); ///<配置PA10 为UART0 RX
}
/******************************************************************************
* EOF (not truncated)
******************************************************************************/
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