001.int main(void)
002.{
003. RCC_ClocksTypeDef RCC_Clocks;
004.
005. /* SysTick end of count event each 10ms */
006. RCC_GetClocksFreq(&RCC_Clocks);
007. SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
008.
009. /* USB configuration */
010. USBConfig();
011.
012. //Configuration of DMA for the ADC channels
013. DMA_ADC_Config();
014.
015. //Configuration of the ADC channels used
016. ADC_Config();
017.
018. /* Start ADC1 Software Conversion */
019. ADC_SoftwareStartConv(ADC1);
020.
021. //Configuration of the PWM (Timers) channels used
022. PWM_Config();
023.
024. while(1)
025. {}
026.}
027.
028.
029./////////////////////////////////////////
030.
031.#define ADC_CDR_ADDRESS ((uint32_t)0x40012308)
032.__IO uint32_t ADCValue[9];
033.
034.void ADC_Config(void)
035.{
036. GPIO_InitTypeDef GPIO_AdcInit;
037. ADC_InitTypeDef ADC_InitStructure;
038. ADC_CommonInitTypeDef ADC_CommonInitStructure;
039.
040. /* Deinitializes the ADC peripheral registers */
041. ADC_DeInit();
042.
043. /* Enable the GPIOC Clock & ADC1 Periph Clock */
044. RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC, ENABLE);
045. RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2 | RCC_APB2Periph_ADC3, ENABLE);
046.
047. /* Configure the PA0 pin (ADC123_IN0)
048. * PA1 pin (ADC123_IN1)
049. * PA2 pin (ADC123_IN2)
050. * PA3 pin (ADC123_IN3)
051. * PA4 pin (ADC12_IN4) */
052. GPIO_AdcInit.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4;
053. GPIO_AdcInit.GPIO_Mode = GPIO_Mode_AN;
054. GPIO_AdcInit.GPIO_PuPd = GPIO_PuPd_NOPULL;
055. GPIO_Init(GPIOA, &GPIO_AdcInit);
056.
057. /* Configure the PB0 pin (ADC12_IN8)
058. * PB1 pin (ADC12_IN9) */
059. GPIO_AdcInit.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
060. GPIO_AdcInit.GPIO_Mode = GPIO_Mode_AN;
061. GPIO_AdcInit.GPIO_PuPd = GPIO_PuPd_NOPULL;
062. GPIO_Init(GPIOB, &GPIO_AdcInit);
063.
064. /* Configure the PC0 pin (ADC123_IN10)
065. * PC2 pin (ADC123_IN12) */
066. GPIO_AdcInit.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_2;
067. GPIO_AdcInit.GPIO_Mode = GPIO_Mode_AN;
068. GPIO_AdcInit.GPIO_PuPd = GPIO_PuPd_NOPULL;
069. GPIO_Init(GPIOC, &GPIO_AdcInit);
070.
071. /* ADC Common configuration -- ADC_CCR Register */
072. ADC_CommonInitStructure.ADC_Mode = ADC_TripleMode_RegSimult ;
073. ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_10Cycles;
074. ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_1 ;
075. ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
076. ADC_CommonInit(&ADC_CommonInitStructure);
077.
078.
079. /* ADC1 regular channel 6 configuration -- ADC_CR1, ADC_CR2, ADC_SQR1 Register */
080. ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
081. ADC_InitStructure.ADC_ScanConvMode = ENABLE;
082. ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
083. ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
084. ADC_InitStructure.ADC_ExternalTrigConv = 0;
085. ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
086. ADC_InitStructure.ADC_NbrOfConversion = 3;
087. ADC_Init(ADC1, &ADC_InitStructure);
088. ADC_Init(ADC2, &ADC_InitStructure);
089. ADC_Init(ADC3, &ADC_InitStructure);
090.
091. /* ADC1 regular channel6 configuration -- ADCx->SMPR1,SMPR2 et ADCx->SQR1,SQR2,SQR3
092. * channel8 */
093. ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_15Cycles );
094. ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 2, ADC_SampleTime_15Cycles );
095. ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 3, ADC_SampleTime_15Cycles );
096.
097. /* ADC2 regular channel12 configuration -- ADCx->SMPR1,SMPR2 et ADCx->SQR1,SQR2,SQR3 */
098. ADC_RegularChannelConfig(ADC2, ADC_Channel_12, 1, ADC_SampleTime_15Cycles );
099. ADC_RegularChannelConfig(ADC2, ADC_Channel_4, 2, ADC_SampleTime_15Cycles );
100. ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 3, ADC_SampleTime_15Cycles );
101.
102. /* ADC3 regular channel12 configuration -- ADCx->SMPR1,SMPR2 et ADCx->SQR1,SQR2,SQR3 */
103. ADC_RegularChannelConfig(ADC3, ADC_Channel_0, 1, ADC_SampleTime_15Cycles );
104. ADC_RegularChannelConfig(ADC3, ADC_Channel_3, 2, ADC_SampleTime_15Cycles );
105. ADC_RegularChannelConfig(ADC3, ADC_Channel_10, 3, ADC_SampleTime_15Cycles );
106.
107. /* DMA2 Stream0 channel0 configuration */
108. DMA_ADC_Config();
109.
110. /* Enable DMA request after last transfer (Multi-ADC mode) */
111. ADC_MultiModeDMARequestAfterLastTransferCmd(ENABLE);
112.
113. /* Enable ADC1 -- ADC_CR2_ADON */
114. ADC_Cmd(ADC1, ENABLE);
115.
116. /* Enable ADC2 */
117. ADC_Cmd(ADC2, ENABLE);
118.
119. /* Enable ADC3 */
120. ADC_Cmd(ADC3, ENABLE);
121.
122. /* Enable ADC1 DMA since ADC1 is the Master*/
123. ADC_DMACmd(ADC1, ENABLE);
124.}
125.
126.
127./**
128. * @brief Configuration of the DMA for the ADC
129. * @param None
130. * @retval None
131. */
132.void DMA_ADC_Config(void)
133.{
134. DMA_InitTypeDef DMA_InitStructure;
135.
136. DMA_InitStructure.DMA_Channel = DMA_Channel_0;
137. DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADCValue;
138. DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC_CDR_ADDRESS;
139. DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
140. DMA_InitStructure.DMA_BufferSize = 9;
141. DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
142. DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
143. DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
144. DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
145. DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
146. DMA_InitStructure.DMA_Priority = DMA_Priority_High;
147. DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
148. DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_1QuarterFull;
149. DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
150. DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
151. DMA_Init(DMA2_Stream0, &DMA_InitStructure);
152.
153. /* DMA2_Stream0 enable */
154. DMA_Cmd(DMA2_Stream0, ENABLE);
155.}
156.
157.
158.
159./////////////////////////////////////////
160.
161.
162.TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
163.TIM_OCInitTypeDef TIM_OCInitStructure;
164.
165.uint16_t PWM_PrescalerValue = 0;
166.uint16_t PWM_Period = 4095;
167.
168.uint16_t PWM_CCR1 = 0;
169.uint16_t PWM_CCR2 = 0;
170.uint16_t PWM_CCR3 = 0;
171.uint16_t PWM_CCR4 = 0;
172.uint16_t PWM_CCR5 = 0;
173.uint16_t PWM_CCR6 = 0;
174.
175.void PWM_Config(void)
176.{
177. /* TIM Configuration */
178. TIM8_Config();
179.
180. /* Time base configuration */
181. TIM_TimeBaseStructure.TIM_Period = PWM_Period;
182. TIM_TimeBaseStructure.TIM_Prescaler = PWM_PrescalerValue;
183. TIM_TimeBaseStructure.TIM_ClockDivision = 0;
184. TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
185.
186. TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure);
187.
188. /* PWM1 Mode configuration: Channel1 */
189. TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
190. TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
191. TIM_OCInitStructure.TIM_Pulse = PWM_CCR1;
192. TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
193.
194. TIM_OC1Init(TIM8, &TIM_OCInitStructure);
195.
196. TIM_OC1PreloadConfig(TIM8, TIM_OCPreload_Enable);
197.
198. /* PWM1 Mode configuration: Channel2 */
199. TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
200. TIM_OCInitStructure.TIM_Pulse = PWM_CCR2;
201.
202. TIM_OC2Init(TIM8, &TIM_OCInitStructure);
203. TIM_OC2PreloadConfig(TIM8, TIM_OCPreload_Enable);
204.
205. /* PWM1 Mode configuration: Channel3 */
206. TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
207. TIM_OCInitStructure.TIM_Pulse = PWM_CCR3;
208.
209. TIM_OC3Init(TIM8, &TIM_OCInitStructure);
210. TIM_OC3PreloadConfig(TIM8, TIM_OCPreload_Enable);
211.
212. /* PWM1 Mode configuration: Channel4 */
213. TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
214. TIM_OCInitStructure.TIM_Pulse = PWM_CCR4;
215.
216. TIM_OC4Init(TIM8, &TIM_OCInitStructure);
217. TIM_OC4PreloadConfig(TIM8, TIM_OCPreload_Enable);
218.
219. /* Enable TIM8 Preload register on ARR */
220. TIM_ARRPreloadConfig(TIM8, ENABLE);
221.
222. /* TIM8 enable counter */
223. TIM_Cmd(TIM8, ENABLE);
224.
225. /* TIM8 Main Output Enable */
226. TIM_CtrlPWMOutputs(TIM8, ENABLE);
227.
228. // TIM IT enable
229. TIM_ITConfig(TIM8, TIM_IT_Update, ENABLE);
230.
231.}
232.
233./**
234. * @brief Configure the TIM8 Output Channels.
235. * @param None
236. * @retval None
237. */
238.void TIM8_Config(void)
239.{
240. GPIO_InitTypeDef GPIO_InitStructure;
241.
242. /* TIM8 clock enable */
243. RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM8, ENABLE);
244.
245. /* GPIOC clocks enable */
246. RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
247.
248. /* GPIOC Configuration: TIM8 CH1 (PC6), TIM8 CH2 (PC7), TIM8 CH3 (PC8) and TIM8 CH4 (PC9) */
249. GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9;
250. GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
251. GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
252. GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
253. GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
254. GPIO_Init(GPIOC, &GPIO_InitStructure);
255.
256.
257. /* Connect TIM8 pins to AF2 */
258. GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_TIM8);
259. GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_TIM8);
260. GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_TIM8);
261. GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_TIM8);
262.}
263.
264.void TIM8_IRQHandler(void)
265.{
266. if (TIM_GetITStatus(TIM8, TIM_IT_Update) != RESET)
267. {
268. TIM_ClearITPendingBit(TIM8, TIM_IT_Update);
269.
270. TIM8->CCR1 = ADCValue[0]; // PWM output 1
271. TIM8->CCR2 = ADCValue[1]; // PWM output 2
272. TIM8->CCR3 = ADCValue[2]; // PWM output 3
273. TIM8->CCR4 = ADCValue[3]; // PWM output 4
274. }
275.}