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comparison libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/IrDA/Transmit/main.c @ 0:c59513fd84fb

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Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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1 /**
2 ******************************************************************************
3 * @file USART/IrDA/Transmit/main.c
4 * @author MCD Application Team
5 * @version V3.5.0
6 * @date 08-April-2011
7 * @brief Main program body
8 ******************************************************************************
9 * @attention
10 *
11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
17 *
18 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
19 ******************************************************************************
20 */
21
22 /* Includes ------------------------------------------------------------------*/
23 #include "stm32f10x.h"
24 #include "platform_config.h"
25
26 /** @addtogroup STM32F10x_StdPeriph_Examples
27 * @{
28 */
29
30 /** @addtogroup USART_IrDA_Transmit
31 * @{
32 */
33
34 /* Private typedef -----------------------------------------------------------*/
35 /* Private define ------------------------------------------------------------*/
36 /* Private macro -------------------------------------------------------------*/
37 /* Private variables ---------------------------------------------------------*/
38 USART_InitTypeDef USART_InitStructure;
39 JOYState_TypeDef MyKey = JOY_NONE;
40
41 /* Private function prototypes -----------------------------------------------*/
42 void RCC_Configuration(void);
43 void GPIO_Configuration(void);
44 JOYState_TypeDef ReadKey(void);
45
46 /* Private functions ---------------------------------------------------------*/
47
48 /**
49 * @brief Main program
50 * @param None
51 * @retval None
52 */
53 int main(void)
54 {
55 /*!< At this stage the microcontroller clock setting is already configured,
56 this is done through SystemInit() function which is called from startup
57 file (startup_stm32f10x_xx.s) before to branch to application main.
58 To reconfigure the default setting of SystemInit() function, refer to
59 system_stm32f10x.c file
60 */
61
62 /* System Clocks Configuration */
63 RCC_Configuration();
64
65 /* Configure the GPIO ports */
66 GPIO_Configuration();
67
68 #ifndef USE_STM3210C_EVAL
69 /* Initialize JoyStick Button mounted on STM3210X-EVAL board */
70 STM_EVAL_PBInit(BUTTON_UP, BUTTON_MODE_GPIO);
71 STM_EVAL_PBInit(BUTTON_DOWN, BUTTON_MODE_GPIO);
72 STM_EVAL_PBInit(BUTTON_LEFT, BUTTON_MODE_GPIO);
73 STM_EVAL_PBInit(BUTTON_RIGHT, BUTTON_MODE_GPIO);
74 STM_EVAL_PBInit(BUTTON_SEL, BUTTON_MODE_GPIO);
75 #else
76 /* Configure the IO Expander */
77 if (IOE_Config())
78 {
79 /* IO Expander config error */
80 while(1);
81 }
82
83 #endif
84
85 /* USARTy configuration ------------------------------------------------------*/
86 /* USARTy configured as follow:
87 - BaudRate = 115200 baud
88 - Word Length = 8 Bits
89 - One Stop Bit
90 - No parity
91 - Hardware flow control disabled (RTS and CTS signals)
92 - Receive and transmit enabled
93 */
94 USART_InitStructure.USART_BaudRate = 115200;
95 USART_InitStructure.USART_WordLength = USART_WordLength_8b;
96 USART_InitStructure.USART_StopBits = USART_StopBits_1;
97 USART_InitStructure.USART_Parity = USART_Parity_No ;
98 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
99 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
100
101 /* Configure the USARTy */
102 USART_Init(USARTy, &USART_InitStructure);
103 /* Enable the USARTy */
104 USART_Cmd(USARTy, ENABLE);
105 /* Set the USARTy prescaler */
106 USART_SetPrescaler(USARTy, 0x1);
107 /* Configure the USARTy IrDA mode */
108 USART_IrDAConfig(USARTy, USART_IrDAMode_Normal);
109
110 /* Enable the USARTy IrDA mode */
111 USART_IrDACmd(USARTy, ENABLE);
112
113
114 while (1)
115 {
116 /* Read Key */
117 MyKey = ReadKey();
118
119 switch(MyKey)
120 {
121 case JOY_UP:
122 USART_SendData(USARTy, JOY_UP);
123 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
124 {
125 }
126 break;
127 case JOY_DOWN:
128 USART_SendData(USARTy, JOY_DOWN);
129 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
130 {
131 }
132 break;
133 case JOY_LEFT:
134 USART_SendData(USARTy, JOY_LEFT);
135 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
136 {
137 }
138 break;
139 case JOY_RIGHT:
140 USART_SendData(USARTy, JOY_RIGHT);
141 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
142 {
143 }
144 break;
145 case JOY_SEL:
146 USART_SendData(USARTy, JOY_SEL);
147 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
148 {
149 }
150 break;
151 case JOY_NONE:
152 USART_SendData(USARTy, JOY_NONE);
153 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
154 {
155 }
156 break;
157 default:
158 break;
159 }
160 }
161 }
162
163 /**
164 * @brief Configures the different system clocks.
165 * @param None
166 * @retval None
167 */
168 void RCC_Configuration(void)
169 {
170 /* Enable GPIO clock */
171 RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE);
172
173 /* Enable USARTy clocks */
174 RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE);
175 }
176
177 /**
178 * @brief Configures the different GPIO ports.
179 * @param None
180 * @retval None
181 */
182 void GPIO_Configuration(void)
183 {
184 GPIO_InitTypeDef GPIO_InitStructure;
185
186 #ifndef USE_STM3210C_EVAL
187 /* Enable the USART3 Pins Partial Software Remapping */
188 GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
189 #else
190 /* Enable the USART2 Pins Software Remapping */
191 GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
192 #endif
193
194 /* Configure USARTy Tx as alternate function push-pull */
195 GPIO_InitStructure.GPIO_Pin = USARTy_TxPin;
196 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
197 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
198 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
199
200 /* Configure USARTy Rx as input floating */
201 GPIO_InitStructure.GPIO_Pin = USARTy_RxPin;
202 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
203 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
204 }
205
206 /**
207 * @brief Reads key from board.
208 * @param None
209 * @retval Return JOY_RIGHT, JOY_LEFT, JOY_SEL, JOY_UP, JOY_DOWN or JOY_NONE
210 */
211 JOYState_TypeDef ReadKey(void)
212 {
213 #ifndef USE_STM3210C_EVAL
214 /* "right" key is pressed */
215 if(!STM_EVAL_PBGetState(BUTTON_RIGHT))
216 {
217 while(STM_EVAL_PBGetState(BUTTON_RIGHT) == Bit_RESET);
218 return JOY_RIGHT;
219 }
220 /* "left" key is pressed */
221 if(!STM_EVAL_PBGetState(BUTTON_LEFT))
222 {
223 while(STM_EVAL_PBGetState(BUTTON_LEFT) == Bit_RESET);
224 return JOY_LEFT;
225 }
226 /* "up" key is pressed */
227 if(!STM_EVAL_PBGetState(BUTTON_UP))
228 {
229 while(STM_EVAL_PBGetState(BUTTON_UP) == Bit_RESET);
230 return JOY_UP;
231 }
232 /* "down" key is pressed */
233 if(!STM_EVAL_PBGetState(BUTTON_DOWN))
234 {
235 while(STM_EVAL_PBGetState(BUTTON_DOWN) == Bit_RESET);
236 return JOY_DOWN;
237 }
238 /* "sel" key is pressed */
239 if(!STM_EVAL_PBGetState(BUTTON_SEL))
240 {
241 while(STM_EVAL_PBGetState(BUTTON_SEL) == Bit_RESET);
242 return JOY_SEL;
243 }
244 /* No key is pressed */
245 else
246 {
247 return JOY_NONE;
248 }
249 #else
250 return IOE_JoyStickGetState();
251 #endif
252 }
253
254 #ifdef USE_FULL_ASSERT
255
256 /**
257 * @brief Reports the name of the source file and the source line number
258 * where the assert_param error has occurred.
259 * @param file: pointer to the source file name
260 * @param line: assert_param error line source number
261 * @retval None
262 */
263 void assert_failed(uint8_t* file, uint32_t line)
264 {
265 /* User can add his own implementation to report the file name and line number,
266 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
267
268 /* Infinite loop */
269 while (1)
270 {
271 }
272 }
273
274 #endif
275
276 /**
277 * @}
278 */
279
280 /**
281 * @}
282 */
283
284 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/