/**
******************************************************************************
* @file USART/IrDA/Transmit/main.c
* @author MCD Application Team
* @version V3.5.0
* @date 08-April-2011
* @brief Main program body
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
*
© COPYRIGHT 2011 STMicroelectronics
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "platform_config.h"
/** @addtogroup STM32F10x_StdPeriph_Examples
* @{
*/
/** @addtogroup USART_IrDA_Transmit
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
USART_InitTypeDef USART_InitStructure;
JOYState_TypeDef MyKey = JOY_NONE;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void GPIO_Configuration(void);
JOYState_TypeDef ReadKey(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.c file
*/
/* System Clocks Configuration */
RCC_Configuration();
/* Configure the GPIO ports */
GPIO_Configuration();
#ifndef USE_STM3210C_EVAL
/* Initialize JoyStick Button mounted on STM3210X-EVAL board */
STM_EVAL_PBInit(BUTTON_UP, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_DOWN, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_LEFT, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_RIGHT, BUTTON_MODE_GPIO);
STM_EVAL_PBInit(BUTTON_SEL, BUTTON_MODE_GPIO);
#else
/* Configure the IO Expander */
if (IOE_Config())
{
/* IO Expander config error */
while(1);
}
#endif
/* USARTy configuration ------------------------------------------------------*/
/* USARTy configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
/* Configure the USARTy */
USART_Init(USARTy, &USART_InitStructure);
/* Enable the USARTy */
USART_Cmd(USARTy, ENABLE);
/* Set the USARTy prescaler */
USART_SetPrescaler(USARTy, 0x1);
/* Configure the USARTy IrDA mode */
USART_IrDAConfig(USARTy, USART_IrDAMode_Normal);
/* Enable the USARTy IrDA mode */
USART_IrDACmd(USARTy, ENABLE);
while (1)
{
/* Read Key */
MyKey = ReadKey();
switch(MyKey)
{
case JOY_UP:
USART_SendData(USARTy, JOY_UP);
while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
{
}
break;
case JOY_DOWN:
USART_SendData(USARTy, JOY_DOWN);
while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
{
}
break;
case JOY_LEFT:
USART_SendData(USARTy, JOY_LEFT);
while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
{
}
break;
case JOY_RIGHT:
USART_SendData(USARTy, JOY_RIGHT);
while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
{
}
break;
case JOY_SEL:
USART_SendData(USARTy, JOY_SEL);
while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
{
}
break;
case JOY_NONE:
USART_SendData(USARTy, JOY_NONE);
while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
{
}
break;
default:
break;
}
}
}
/**
* @brief Configures the different system clocks.
* @param None
* @retval None
*/
void RCC_Configuration(void)
{
/* Enable GPIO clock */
RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE);
/* Enable USARTy clocks */
RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE);
}
/**
* @brief Configures the different GPIO ports.
* @param None
* @retval None
*/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
#ifndef USE_STM3210C_EVAL
/* Enable the USART3 Pins Partial Software Remapping */
GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
#else
/* Enable the USART2 Pins Software Remapping */
GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
#endif
/* Configure USARTy Tx as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = USARTy_TxPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
/* Configure USARTy Rx as input floating */
GPIO_InitStructure.GPIO_Pin = USARTy_RxPin;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
}
/**
* @brief Reads key from board.
* @param None
* @retval Return JOY_RIGHT, JOY_LEFT, JOY_SEL, JOY_UP, JOY_DOWN or JOY_NONE
*/
JOYState_TypeDef ReadKey(void)
{
#ifndef USE_STM3210C_EVAL
/* "right" key is pressed */
if(!STM_EVAL_PBGetState(BUTTON_RIGHT))
{
while(STM_EVAL_PBGetState(BUTTON_RIGHT) == Bit_RESET);
return JOY_RIGHT;
}
/* "left" key is pressed */
if(!STM_EVAL_PBGetState(BUTTON_LEFT))
{
while(STM_EVAL_PBGetState(BUTTON_LEFT) == Bit_RESET);
return JOY_LEFT;
}
/* "up" key is pressed */
if(!STM_EVAL_PBGetState(BUTTON_UP))
{
while(STM_EVAL_PBGetState(BUTTON_UP) == Bit_RESET);
return JOY_UP;
}
/* "down" key is pressed */
if(!STM_EVAL_PBGetState(BUTTON_DOWN))
{
while(STM_EVAL_PBGetState(BUTTON_DOWN) == Bit_RESET);
return JOY_DOWN;
}
/* "sel" key is pressed */
if(!STM_EVAL_PBGetState(BUTTON_SEL))
{
while(STM_EVAL_PBGetState(BUTTON_SEL) == Bit_RESET);
return JOY_SEL;
}
/* No key is pressed */
else
{
return JOY_NONE;
}
#else
return IOE_JoyStickGetState();
#endif
}
#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
* @retval None
*/
void assert_failed(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
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/