添加一些关于midi播放的项目
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terryLP
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//
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// Created by YangYongbao on 2017/3/16.
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//
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#include "stm32f10x.h"
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#include "stm32f10x_conf.h"
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#include "FreeRTOS.h"
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#include "task.h"
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#include "uart_log.h"
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#include "hal.h"
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#include "usb_lib.h"
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#include "usb_desc.h"
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#include "usb_pwr.h"
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#include "Player.h"
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extern __IO uint8_t Receive_Buffer[64];
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extern __IO uint32_t Receive_length;
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extern __IO uint32_t length;
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uint8_t Send_Buffer[64];
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uint32_t packet_sent = 1;
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uint32_t packet_receive = 1;
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Player mPlayer;
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void RCC_Configuration(void)
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{
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/* GPIOA, GPIOB clock enable */
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC, ENABLE);
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
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}
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void GPIO_Configuration(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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}
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void TIM2_IRQHandler()
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{
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if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
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{
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TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
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Player32kProc(&mPlayer);
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}
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//GPIO_ResetBits(GPIOC, GPIO_Pin_13);
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}
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void TIMER_Config(void)
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{
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TIM_TimeBaseInitTypeDef timerInitStructure;
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timerInitStructure.TIM_Prescaler = 1;
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timerInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
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timerInitStructure.TIM_Period = 1124;
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timerInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
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timerInitStructure.TIM_RepetitionCounter = 0;
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TIM_TimeBaseInit(TIM2, &timerInitStructure);
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TIM_ClearFlag(TIM2, TIM_IT_Update);
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TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
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TIM_Cmd(TIM2, ENABLE);
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NVIC_InitTypeDef nvicStructure;
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nvicStructure.NVIC_IRQChannel = TIM2_IRQn;
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nvicStructure.NVIC_IRQChannelPreemptionPriority = 0;
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nvicStructure.NVIC_IRQChannelSubPriority = 1;
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nvicStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&nvicStructure);
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}
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//TIM3 PWM部分初始化
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//PWM输出初始化
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//arr：自动重装值
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//psc：时钟预分频数
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void TIM3_PWM_Init(u16 arr, u16 psc)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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TIM_OCInitTypeDef TIM_OCInitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //使能定时器3时钟
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE); //使能GPIO外设和AFIO复用功能模块时钟
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//GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE); //Timer3部分重映射 TIM3_CH2->PB5
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//设置该引脚为复用输出功能,输出TIM3 CH2的PWM脉冲波形 GPIOB.5
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //TIM_CH2
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure); //初始化GPIO
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// GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE);
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//设置该引脚为复用输出功能,输出TIM3 CH3的PWM脉冲波形 GPIOB.0
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; //TIM_CH3
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化GPIO
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//初始化TIM3
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TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值
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TIM_TimeBaseStructure.TIM_Prescaler = psc; //设置用来作为TIMx时钟频率除数的预分频值
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TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分割:TDTS = Tck_tim
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
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TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
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//初始化TIM3 Channel2 PWM模式
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //选择定时器模式:TIM脉冲宽度调制模式2
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
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TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //输出极性:TIM输出比较极性高
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TIM_OC2Init(TIM3, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM3 OC2
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TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable); //使能TIM3在CCR2上的预装载寄存器
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//初始化TIM3 Channel2 PWM模式
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //选择定时器模式:TIM脉冲宽度调制模式2
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
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TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //输出极性:TIM输出比较极性高
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TIM_OC3Init(TIM3, &TIM_OCInitStructure); //根据T指定的参数初始化外设TIM3 OC3
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TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);
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TIM_Cmd(TIM3, ENABLE); //使能TIM3
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}
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void vTaskFunction(void *pvParameters)
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{
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debug("start task");
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while (1)
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{
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debug("led on ");
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GPIO_SetBits(GPIOC, GPIO_Pin_13);
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vTaskDelay(100);
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debug("led off ");
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GPIO_ResetBits(GPIOC, GPIO_Pin_13);
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vTaskDelay(100);
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}
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}
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void vPlayTask(void *pvParameters)
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{
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PlayerInit(&mPlayer);
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PlayerPlay(&mPlayer);
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TIM3_PWM_Init(1023, 0);
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TIMER_Config();
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while (1)
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{
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PlayerProcess(&mPlayer);
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vTaskDelay(1);
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}
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}
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void vTaskUsb(void *pvParameters)
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{
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while (1)
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{
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if (bDeviceState == CONFIGURED)
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{
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CDC_Receive_DATA();
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/*Check to see if we have data yet */
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if (Receive_length != 0)
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{
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if (packet_sent == 1)
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CDC_Send_DATA((unsigned char *)Receive_Buffer, Receive_length);
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for (int32_t i = 0; i < Receive_length; i += 4)
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{
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if (Receive_Buffer[i] == 0x09 && Receive_Buffer[i + 3] != 0x00)
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{
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NoteOnAsm(&mPlayer.mainSynthesizer, Receive_Buffer[i + 2]);
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}
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}
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Receive_length = 0;
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}
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}
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vTaskDelay(1);
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}
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}
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extern void stdio_setup(void);
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extern void TestProcess(void);
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int main()
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{
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// init uart log
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stdio_setup();
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uart_log_init();
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RCC_Configuration();
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GPIO_Configuration();
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Set_System();
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//Set_USBClock();
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//USB_Interrupts_Config();
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//USB_Init();
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debug("start main ");
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const char *pcTextForTask1 = "Task1 is running\r\n";
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// TestProcess();
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xTaskCreate(vTaskFunction, "Task 1", 512, (void *)pcTextForTask1, 1, NULL);
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//xTaskCreate(vTaskUsb, "Task usb", 1024, NULL, 1, NULL);
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xTaskCreate(vPlayTask, "Task play", 512, NULL, 1, NULL);
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vTaskStartScheduler();
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while (1)
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;
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return 0;
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}
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