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添加一些关于midi播放的项目

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terryLP
2025-03-24 14:30:56 +08:00
parent e31eb22077
commit 498b4ef13b
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Midi/music-box-nv32-master/nv32lib/example/NV32/BOS_demo/BOS_demo.c
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/**********************************************************************
*
* 实验名称：BOS位带操作实验
* 实验平台：NV32开发板
* 板载芯片：NV32F100FL64E
* 实验效果：BOS位带操作，能够降低总线的占用率和CPU的执行时间，也可节省代码
* 空间，以降低系统能耗的效果。
*
************************************************************************/
#include "common.h"
#include "ics.h"
#include "rtc.h"
#include "uart.h"
#include "systick.h"
#include "bos.h"
#include "sysinit.h"
/************************************************************************************
*
* 使用BFI/UBFX功能需要注意的是，BFI/UBFX操作指定的外设偏移地址是addr[18:0]，addr[19]
* 用作"w"指示符的最低有效位,而非地址位。GPIO寄存器的偏移地址位是addr[19:0]，地址空间
* 在FF000.因此会有1bit 的地址冲突。为此在使用BFI/UBFX操作GPIO的寄存器时，使用的是内存
* 映射出来的地址空间，此时GPIO的起始地址将为F000，如果还使用原来的地址，命令将会无效。
*
**********************************************************************************/
#define GPIO_ALIAS_OFFSET 0x000F0000L
#define GPIOB_PDOR_ALIAS (((uint32_t)&GPIOB->PDOR)-GPIO_ALIAS_OFFSET) /*!<GPIO寄存器内存映射地址空间 */
/******************************************************************************/
int main (void);
void RTC_Task(void);
uint32_t BOS_LogicOPwithC(void);
uint32_t BOS_LogicOPwithBOS(void);
uint32_t BOS_BFIwithC(uint32_t *pAddr, uint8_t u8BitPos, uint8_t u8FieldWidth, uint32_t u32Data);
uint32_t BOS_BFIwithBOS(void);
/*****************************************************************************/
#ifdef __GNUC__
#define __ramfunc __attribute__((section (".data")))
#endif
/********************************************************************/
int main (void)
{
/*系统初始化*/
sysinit();
ICS_ConfigType sICSConfig;
RTC_ConfigType sRTCConfig;
RTC_ConfigType *pRTCConfig = &sRTCConfig;
UART_ConfigType sConfig;
printf("\r\nRunning the BOS_demo project.\r\n");
#if defined(__ICCARM__)
printf("Build by IAR\r\n");
#elif defined(__GNUC__)
printf("Build by GUNC\r\n");
#elif defined(__CC_ARM)
printf("Build by MDK\r\n");
#else
printf("Unrecognized compiler!\r\n");
#endif
LED0_Init();
LED2_Init();
/*配置RTC每隔一秒产生一次中断*/
pRTCConfig->u16ModuloValue = 9;
pRTCConfig->bInterruptEn = RTC_INTERRUPT_ENABLE; /* 使能中断 */
pRTCConfig->bClockSource = RTC_CLKSRC_1KHZ; /* 时钟频率1khz*/
pRTCConfig->bClockPresaler = RTC_CLK_PRESCALER_100; /* 分频系数100*/
RTC_SetCallback(RTC_Task);
RTC_Init(pRTCConfig);
printf("\nIt is in FEE mode now,");
UART_WaitTxComplete(TERM_PORT);
/*将时钟模式由 FEE 模式切换到 FEI 模式*/
sICSConfig.u32ClkFreq = 10000;
ICS_SwitchMode(FEE,FEI, &sICSConfig);
/* 由于总线时钟发生改变，从新初始化UART模块*/
sConfig.u32SysClkHz = 40000000L;
sConfig.u32Baudrate = UART_PRINT_BITRATE;
UART_Init (TERM_PORT, &sConfig);
printf("switch to FEI mode.\n");
OSC_Enable();
/* 开始测试常规C位操作和BOS位操作CPU执行时间 */
printf("Logic operation in C takes %d ticks!\r\n", BOS_LogicOPwithC());
printf("Logic operation with BOS takes %d ticks!\r\n", BOS_LogicOPwithBOS());
/*!
* 配置 PTG0 到 PTG3 引脚为输出引脚
*/
GPIOB->PDDR |= (0xF << 16); /* 配置PTG0~PTG3引脚为输出 */
GPIOB->PIDR &= ~(0xF << 16); /* 注: 为了从引脚中读到正确的数据，必须清理PIDR寄存器 */
printf("Bit field operation in C takes %d ticks!\r\n", BOS_BFIwithC((uint32_t*)&GPIOB->PDOR,16,4-1, 5<<16));
printf("Bit field operation with BOS takes %d ticks!\r\n", BOS_BFIwithBOS());
printf("Test completed!\n");
while(1)
{
}
}
/*****************************************************************************//*!
*
* @brief 采用常规C对寄存器执行异或操作.
*
* @param none
*
* @return none
*
*****************************************************************************/
#if (defined(__ICCARM__) || defined(__GNUC__))
__ramfunc uint32_t BOS_LogicOPwithC(void)
#elif defined(__CC_ARM)
uint32_t BOS_LogicOPwithC(void)
#endif
{
uint32_t u32PortVal = 0;
uint32_t u32LogicOPTicks;
/*!
* 配置PTA1 作为输出引脚
*/
GPIOA->PDDR |= 0x02;
GPIOA->PIDR &= ~0x02; /* 注：为了从引脚中读到正确的数据，端口输入禁用寄存器对应位清零 */
/*初始化SysTick定时器，计算代码执行时间*/
SysTick->CTRL &= ~(SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
SysTick->VAL = 0x0; /*清除当前值寄存器 */
SysTick->LOAD = 0x00FFFFFF;
SysTick->CTRL |= (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
/* exe: */
/*! \
* 常规的读、修改、写顺序去切换一个GPIO输出
*/
u32PortVal = GPIOA->PDOR;
u32PortVal ^= 0x02;
GPIOA->PDOR = u32PortVal;
u32PortVal = GPIOA->PDOR;
u32PortVal ^= 0x02;
GPIOA->PDOR = u32PortVal;
u32PortVal = GPIOA->PDOR;
u32PortVal ^= 0x02;
GPIOA->PDOR = u32PortVal;
u32PortVal = GPIOA->PDOR;
u32PortVal ^= 0x02;
GPIOA->PDOR = u32PortVal;
u32PortVal = GPIOA->PDOR;
u32PortVal ^= 0x02;
GPIOA->PDOR = u32PortVal;
/* 测量代码执行的时间 */
u32LogicOPTicks = SysTick->VAL;
return (SysTick->LOAD - u32LogicOPTicks);
}
/*****************************************************************************//*!
*
* @brief 采用BOS位带操作执行异或操作 .
*
* @param none
*
* @return none
*
*****************************************************************************/
#if (defined(__ICCARM__) || defined(__GNUC__))
__ramfunc uint32_t BOS_LogicOPwithBOS(void)
#elif defined(__CC_ARM)
uint32_t BOS_LogicOPwithBOS(void)
#endif
{
uint32_t u32LogicOPTicks;
/*!
* 配置PTA1 作为输出引脚
*/
GPIOA->PDDR |= 0x02;
GPIOA->PIDR &= ~0x02; /* 注：为了从引脚中读到正确的数据，端口输入禁用寄存器对应位清零 */
/*初始化SysTick定时器，计算代码执行时间*/
SysTick->CTRL &= ~(SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
SysTick->VAL = 0x0; /*清除当前值寄存器 */
SysTick->LOAD = 0x00FFFFFF;
SysTick->CTRL |= (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
/* exe: */
BOS_XOR(&GPIOA->PDOR) = 0x02;
BOS_XOR(&GPIOA->PDOR) = 0x02;
BOS_XOR(&GPIOA->PDOR) = 0x02;
BOS_XOR(&GPIOA->PDOR) = 0x02;
BOS_XOR(&GPIOA->PDOR) = 0x02;
/* 测量代码执行的时间 */
u32LogicOPTicks = SysTick->VAL;
return (SysTick->LOAD - u32LogicOPTicks);
}
/*****************************************************************************//*!
*
* @brief 采用常规C，对寄存器执行一段数据的插入.
*
* @param[in] pAddr 指向目标地址
* @param[in] u8BitPos 插入数据的其实位
* @param[in] u8FieldWidth 插入数据宽度-1
* @param[in] u32Data 要插入寄存器的数据
*
* @return none
*
*****************************************************************************/
#if (defined(__ICCARM__) || defined(__GNUC__))
__ramfunc uint32_t BOS_BFIwithC(uint32_t *pAddr, uint8_t u8BitPos, uint8_t u8FieldWidth, uint32_t u32Data)
#elif defined(__CC_ARM)
uint32_t BOS_BFIwithC(uint32_t *pAddr, uint8_t u8BitPos, uint8_t u8FieldWidth, uint32_t u32Data)
#endif
{
uint32_t u32RegVal;
uint32_t u32Mask;
uint32_t u32LogicOPTicks;
/*初始化SysTick定时器，计算代码执行时间*/
SysTick->CTRL &= ~(SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
SysTick->VAL = 0x0; /*清除当前值寄存器 */
SysTick->LOAD = 0x00FFFFFF;
SysTick->CTRL |= (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
/* exe: */
u32RegVal = *pAddr;
u32Mask = ((1 << (u8FieldWidth+1)) - 1) << u8BitPos;
u32RegVal = (u32RegVal & ~u32Mask)|((u32Data) & u32Mask);
*pAddr = u32RegVal;
/* 测量代码执行的时间 */
u32LogicOPTicks = SysTick->VAL;
return (SysTick->LOAD - u32LogicOPTicks);
}
/*****************************************************************************//*!
*
* @brief 采用BOS位操作对寄存器执行一段数据的插入
*
* @param none
*
* @return none
*
*****************************************************************************/
#if (defined(__ICCARM__) || defined(__GNUC__))
__ramfunc uint32_t BOS_BFIwithBOS(void)
#elif defined(__CC_ARM)
uint32_t BOS_BFIwithBOS(void)
#endif
{
uint32_t u32LogicOPTicks;
uint32_t u32Data = (0x5 << 16);
uint32_t u32Addr = GPIOB_PDOR_ALIAS;
/* 配置 PTG0~PTG3 为输出引脚 */
GPIOB->PDDR |= (0xF << 16); /* 配置 PTG0~PTG3 为输出引脚 */
GPIOB->PDOR = 0; /*PTG0 to PTG3输出为0 */
GPIOB->PIDR &= ~(0xF << 16); /* 注：为了从引脚中读到正确的数据，端口输入禁用寄存器对应位清零 */
/*初始化SysTick定时器，计算代码执行时间*/
SysTick->CTRL &= ~(SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
SysTick->VAL = 0x0; /*清除当前值寄存器 */
SysTick->LOAD = 0x00FFFFFF;
SysTick->CTRL |= (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
/* exe: */
BOS_BITFIELD_INSERT(u32Addr,16,4) = u32Data; /* 写 5 位数据到16~19位*/
/* 测量代码执行的时间 */
u32LogicOPTicks = SysTick->VAL;
/* check if the data field is inserted correctly (canceled)*/
/*
if(u32Data != GPIOB->PDIR)
{
printf("Error: bitfield insertion with BOS failed!\n");
}
*/
return (SysTick->LOAD - u32LogicOPTicks);
}
/*****************************************************************************//*!
*
* @brief RTC回调函数
*
* @param none
*
* @return none
*
*****************************************************************************/
void RTC_Task(void)
{
/* 切换 LED1 */
LED0_Toggle();
}
/********************************************************************/
Midi/music-box-nv32-master/nv32lib/example/NV32/BOS_demo/isr.h
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/******************************************************************************
*
* @brief define interrupt service routines referenced by the vector table.
*
* Note: Only "vectors.c" should include this header file.
*
*******************************************************************************
******************************************************************************/
#ifndef __ISR_H
#define __ISR_H
/* Example */
/*
#undef VECTOR_036
#define VECTOR_036 RTC_Isr
// ISR(s) are defined in your project directory.
extern void RTC_Isr(void);
*/
/*!
* @brief define interrupt service routine for different vectors.
*
*/
#undef VECTOR_036
#define VECTOR_036 RTC_Isr /*!< Vector 36 points to RTC interrupt service routine */
extern void RTC_Isr(void);
#endif //__ISR_H
/* End of "isr.h" */