/*****************************************************************************
* Copyright (c) 2019, Nations Technologies Inc.
*
* All rights reserved.
* ****************************************************************************
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Nations' name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY NATIONS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL NATIONS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ****************************************************************************/
/**
* [url=home.php?mod=space&uid=288409]@file[/url] main.c
* [url=home.php?mod=space&uid=187600]@author[/url] Nations
* [url=home.php?mod=space&uid=895143]@version[/url] v1.0.0
*
* [url=home.php?mod=space&uid=17282]@CopyRight[/url] Copyright (c) 2019, Nations Technologies Inc. All rights reserved.
*/
#include <stdio.h>
#include "main.h"
/** @addtogroup N32G45X_StdPeriph_Examples
* @{
*/
/** @addtogroup USART_Printf
* @{
*/
typedef enum
{
FAILED = 0,
PASSED = !FAILED
} TestStatus;
#define countof(a) (sizeof(a) / sizeof(*(a)))
USART_InitType USART_InitStructure;
void RCC_Configuration(void);
void GPIO_Configuration(void);
TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);
uint8_t get_1byte(void);
void stop(void)
{
GPIOE->PBC = GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_3|GPIO_PIN_5;
}
void up(void)
{
GPIOE->PBSC = GPIO_PIN_10;
GPIOE->PBC = GPIO_PIN_12;
GPIOE->PBSC = GPIO_PIN_11;
GPIOE->PBC = GPIO_PIN_13;
GPIOE->PBSC = GPIO_PIN_2;
GPIOE->PBC = GPIO_PIN_4;
GPIOE->PBSC = GPIO_PIN_3;
GPIOE->PBC = GPIO_PIN_5;
}
void down(void)
{
GPIOE->PBC = GPIO_PIN_10;
GPIOE->PBSC = GPIO_PIN_12;
GPIOE->PBC = GPIO_PIN_11;
GPIOE->PBSC = GPIO_PIN_13;
GPIOE->PBC = GPIO_PIN_2;
GPIOE->PBSC = GPIO_PIN_4;
GPIOE->PBC = GPIO_PIN_3;
GPIOE->PBSC = GPIO_PIN_5;
}
void left(void)
{
GPIOE->PBSC = GPIO_PIN_10;
GPIOE->PBC = GPIO_PIN_12;
GPIOE->PBC = GPIO_PIN_11;
GPIOE->PBC = GPIO_PIN_13;
}
void right(void)
{
GPIOE->PBC = GPIO_PIN_10;
GPIOE->PBC = GPIO_PIN_12;
GPIOE->PBSC = GPIO_PIN_11;
GPIOE->PBC = GPIO_PIN_13;
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] Main program
*/
int main(void)
{
uint8_t x;
uint8_t cmd[15];
unsigned int i=0;
/* System Clocks Configuration */
RCC_Configuration();
/* Configure the GPIO ports */
GPIO_Configuration();
/* USARTy and USARTz configuration ------------------------------------------------------*/
USART_InitStructure.BaudRate = 9600;
USART_InitStructure.WordLength = USART_WL_8B;
USART_InitStructure.StopBits = USART_STPB_1;
USART_InitStructure.Parity = USART_PE_NO;
USART_InitStructure.HardwareFlowControl = USART_HFCTRL_NONE;
USART_InitStructure.Mode = USART_MODE_RX | USART_MODE_TX;
/* Configure USARTx */
USART_Init(USARTx, &USART_InitStructure);
/* Enable the USARTx */
USART_Enable(USARTx, ENABLE);
printf("Hello MyCar\n");
while (1)
{
while(get_1byte()=='{')
{
cmd[0] = '{';
for(i=1;i<15;i++)
cmd[i] = get_1byte();
if(cmd[14]=='}')
{
x=cmd[12];
switch(x)
{
case 'U':
up();
printf("UP\n");
break;
case 'D':
down();
printf("DOWN\n");
break;
case 'L':
left();
printf("LEFT\n");
break;
case 'R':
right();
printf("RIGHT\n");
break;
case 'S':
stop();
printf("STOP\n");
break;
}
}
}
}
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] Configures the different system clocks.
*/
void RCC_Configuration(void)
{
/* Enable GPIO clock */
GPIO_APBxClkCmd(USARTx_GPIO_CLK | RCC_APB2_PERIPH_AFIO, ENABLE);
/* Enable USARTy and USARTz Clock */
USART_APBxClkCmd(USARTx_CLK, ENABLE);
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] Configures the different GPIO ports.
*/
void GPIO_Configuration(void)
{
GPIO_InitType GPIO_InitStructure;
/* Configure USARTx Tx as alternate function push-pull */
GPIO_InitStructure.Pin = USARTx_TxPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitPeripheral(USARTx_GPIO, &GPIO_InitStructure);
/* Configure USARTx Rx as input floating */
GPIO_InitStructure.Pin = USARTx_RxPin;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitPeripheral(USARTx_GPIO, &GPIO_InitStructure);
/*
对使用的IO进行初始化
*/
RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOE, ENABLE);
GPIO_InitStructure.Pin = GPIO_PIN_10|GPIO_PIN_12|GPIO_PIN_11|GPIO_PIN_13|GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_3|GPIO_PIN_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitPeripheral(GPIOE, &GPIO_InitStructure);
}
/**
* @brief Compares two buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength buffer's length
* [url=home.php?mod=space&uid=266161]@return[/url] PASSED: pBuffer1 identical to pBuffer2
* FAILED: pBuffer1 differs from pBuffer2
*/
TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return FAILED;
}
pBuffer1++;
pBuffer2++;
}
return PASSED;
}
uint8_t get_1byte(void)
{
uint8_t ch;
while (USART_GetFlagStatus(USARTx, USART_FLAG_RXDNE) == RESET)
{
}
ch = (USART_ReceiveData(USARTx)&0xFF);
// printf("%c",ch);
return ch;
}
/* retarget the C library printf function to the USART */
int fputc(int ch, FILE* f)
{
USART_SendData(USARTx, (uint8_t)ch);
while (USART_GetFlagStatus(USARTx, USART_FLAG_TXDE) == RESET)
;
return (ch);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file pointer to the source file name
* @param line assert_param error line source number
*/
void assert_failed(const uint8_t* expr, const uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
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