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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 TIM/6Steps/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
25 /** @addtogroup STM32F10x_StdPeriph_Examples
26 * @{
27 */
28
29 /** @addtogroup TIM_6Steps
30 * @{
31 */
32
33 /* Private typedef -----------------------------------------------------------*/
34 /* Private define ------------------------------------------------------------*/
35 /* Private macro -------------------------------------------------------------*/
36 /* Private variables ---------------------------------------------------------*/
37 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
38 TIM_OCInitTypeDef TIM_OCInitStructure;
39 TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
40 uint16_t CCR1_Val = 32767;
41 uint16_t CCR2_Val = 24575;
42 uint16_t CCR3_Val = 16383;
43 uint16_t CCR4_Val = 8191;
44
45 /* Private function prototypes -----------------------------------------------*/
46 void RCC_Configuration(void);
47 void GPIO_Configuration(void);
48 void SysTick_Configuration(void);
49 void NVIC_Configuration(void);
50
51 /* Private functions ---------------------------------------------------------*/
52
53 /**
54 * @brief Main program
55 * @param None
56 * @retval None
57 */
58 int main(void)
59 {
60 /*!< At this stage the microcontroller clock setting is already configured,
61 this is done through SystemInit() function which is called from startup
62 file (startup_stm32f10x_xx.s) before to branch to application main.
63 To reconfigure the default setting of SystemInit() function, refer to
64 system_stm32f10x.c file
65 */
66
67 /* System Clocks Configuration */
68 RCC_Configuration();
69
70 /* NVIC Configuration */
71 NVIC_Configuration();
72
73 /* GPIO Configuration */
74 GPIO_Configuration();
75
76 /* SysTick Configuration */
77 SysTick_Configuration();
78
79 /*-----------------------------------------------------------------------------
80 The STM32F10x TIM1 peripheral offers the possibility to program in advance the
81 configuration for the next TIM1 outputs behaviour (step) and change the configuration
82 of all the channels at the same time. This operation is possible when the COM
83 (commutation) event is used.
84 The COM event can be generated by software by setting the COM bit in the TIM1_EGR
85 register or by hardware (on TRC rising edge).
86 In this example, a software COM event is generated each 100 ms: using the Systick
87 interrupt.
88 The TIM1 is configured in Timing Mode, each time a COM event occurs,
89 a new TIM1 configuration will be set in advance.
90 The following Table describes the TIM1 Channels states:
91 -----------------------------------------------
92 | Step1 | Step2 | Step3 | Step4 | Step5 | Step6 |
93 ----------------------------------------------------------
94 |Channel1 | 1 | 0 | 0 | 0 | 0 | 1 |
95 ----------------------------------------------------------
96 |Channel1N | 0 | 0 | 1 | 1 | 0 | 0 |
97 ----------------------------------------------------------
98 |Channel2 | 0 | 0 | 0 | 1 | 1 | 0 |
99 ----------------------------------------------------------
100 |Channel2N | 1 | 1 | 0 | 0 | 0 | 0 |
101 ----------------------------------------------------------
102 |Channel3 | 0 | 1 | 1 | 0 | 0 | 0 |
103 ----------------------------------------------------------
104 |Channel3N | 0 | 0 | 0 | 0 | 1 | 1 |
105 ----------------------------------------------------------
106 -----------------------------------------------------------------------------*/
107
108 /* Time Base configuration */
109 TIM_TimeBaseStructure.TIM_Prescaler = 0;
110 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
111 TIM_TimeBaseStructure.TIM_Period = 4095;
112 TIM_TimeBaseStructure.TIM_ClockDivision = 0;
113 TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
114
115 TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
116
117 /* Channel 1, 2,3 and 4 Configuration in PWM mode */
118 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;
119 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
120 TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
121 TIM_OCInitStructure.TIM_Pulse = 2047;
122 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
123 TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
124 TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
125 TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set;
126
127 TIM_OC1Init(TIM1, &TIM_OCInitStructure);
128
129 TIM_OCInitStructure.TIM_Pulse = 1023;
130 TIM_OC2Init(TIM1, &TIM_OCInitStructure);
131
132 TIM_OCInitStructure.TIM_Pulse = 511;
133 TIM_OC3Init(TIM1, &TIM_OCInitStructure);
134
135 /* Automatic Output enable, Break, dead time and lock configuration*/
136 TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;
137 TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
138 TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
139 TIM_BDTRInitStructure.TIM_DeadTime = 1;
140 TIM_BDTRInitStructure.TIM_Break = TIM_Break_Enable;
141 TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High;
142 TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable;
143
144 TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure);
145
146 TIM_CCPreloadControl(TIM1, ENABLE);
147
148 TIM_ITConfig(TIM1, TIM_IT_COM, ENABLE);
149
150 /* TIM1 counter enable */
151 TIM_Cmd(TIM1, ENABLE);
152
153 /* Main Output Enable */
154 TIM_CtrlPWMOutputs(TIM1, ENABLE);
155
156 while (1)
157 {}
158 }
159
160 /**
161 * @brief Configures the different system clocks.
162 * @param None
163 * @retval None
164 */
165 void RCC_Configuration(void)
166 {
167 /* TIM1, GPIOA, GPIOB, GPIOE and AFIO clocks enable */
168 RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOE|
169 RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE);
170 }
171
172 /**
173 * @brief Configure the TIM1 Pins.
174 * @param None
175 * @retval None
176 */
177 void GPIO_Configuration(void)
178 {
179 GPIO_InitTypeDef GPIO_InitStructure;
180
181 #ifdef STM32F10X_CL
182 /* GPIOE Configuration: Channel 1/1N, 2/2N, 3/3N as alternate function push-pull */
183 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_13|
184 GPIO_Pin_8|GPIO_Pin_10|GPIO_Pin_12;
185 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
186 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
187
188 GPIO_Init(GPIOE, &GPIO_InitStructure);
189
190 /* GPIOE Configuration: BKIN pin */
191 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
192 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
193 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
194
195 GPIO_Init(GPIOE, &GPIO_InitStructure);
196
197 /* TIM1 Full remapping pins */
198 GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE);
199
200 #else
201 /* GPIOA Configuration: Channel 1, 2 and 3 as alternate function push-pull */
202 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
203 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
204 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
205 GPIO_Init(GPIOA, &GPIO_InitStructure);
206
207 /* GPIOB Configuration: Channel 1N, 2N and 3N as alternate function push-pull */
208 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
209 GPIO_Init(GPIOB, &GPIO_InitStructure);
210
211 /* GPIOB Configuration: BKIN pin */
212 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
213 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
214 GPIO_Init(GPIOB, &GPIO_InitStructure);
215 #endif
216 }
217
218 /**
219 * @brief Configures the SysTick.
220 * @param None
221 * @retval None
222 */
223 void SysTick_Configuration(void)
224 {
225 /* Setup SysTick Timer for 100 msec interrupts */
226 if (SysTick_Config((SystemCoreClock) / 10))
227 {
228 /* Capture error */
229 while (1);
230 }
231
232 NVIC_SetPriority(SysTick_IRQn, 0x0);
233 }
234
235 /**
236 * @brief Configures the nested vectored interrupt controller.
237 * @param None
238 * @retval None
239 */
240 void NVIC_Configuration(void)
241 {
242 NVIC_InitTypeDef NVIC_InitStructure;
243
244 /* Enable the TIM1 Interrupt */
245 #if defined (STM32F10X_LD_VL) || defined (STM32F10X_MD_VL) || defined (STM32F10X_HD_VL)
246 NVIC_InitStructure.NVIC_IRQChannel = TIM1_TRG_COM_TIM17_IRQn;
247 #else
248 NVIC_InitStructure.NVIC_IRQChannel = TIM1_TRG_COM_IRQn;
249 #endif
250 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
251 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
252 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
253 NVIC_Init(&NVIC_InitStructure);
254
255 }
256
257 #ifdef USE_FULL_ASSERT
258
259 /**
260 * @brief Reports the name of the source file and the source line number
261 * where the assert_param error has occurred.
262 * @param file: pointer to the source file name
263 * @param line: assert_param error line source number
264 * @retval None
265 */
266 void assert_failed(uint8_t* file, uint32_t line)
267 {
268 /* User can add his own implementation to report the file name and line number,
269 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
270
271 while (1)
272 {}
273 }
274
275 #endif
276 /**
277 * @}
278 */
279
280 /**
281 * @}
282 */
283
284 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/