441 lines
14 KiB
C++
441 lines
14 KiB
C++
#include "Sys.h"
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#include "Time.h"
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#include <stdlib.h>
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TSys Sys;
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TTime Time;
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#ifndef BIT
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#define BIT(x) (1 << (x))
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#endif
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#define RCC_CFGR_USBPRE_Div1 ((uint32_t)0x00400000) /*!< USB Device prescaler */
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#define RCC_CFGR_USBPRE_1Div5 ((uint32_t)0x00000000) /*!< USB Device prescaler */
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#define RCC_CFGR_USBPRE_Div2 ((uint32_t)0x00C00000) /*!< USB Device prescaler */
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#define RCC_CFGR_USBPRE_2Div5 ((uint32_t)0x00800000) /*!< USB Device prescaler */
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#define GD32_PLL_MASK 0x20000000
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#define CFGR_PLLMull_Mask ((uint32_t)0x003C0000)
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void TSys::Sleep(uint ms) { Time.Sleep(ms * 1000); }
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void TSys::Delay(uint us) { Time.Sleep(us); }
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void TSys::Reset() { NVIC_SystemReset(); }
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// 原配置MSP作为PSP，而使用全局数组作为新的MSP
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// MSP 堆栈大小
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#define IRQ_STACK_SIZE 0x100
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uint IRQ_STACK[IRQ_STACK_SIZE]; // MSP 中断嵌套堆栈
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#pragma arm section code
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force_inline void Set_SP()
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{
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__set_PSP(__get_MSP());
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__set_MSP((uint)&IRQ_STACK[IRQ_STACK_SIZE]);
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__set_CONTROL(2);
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__ISB();
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}
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bool TSys::CheckMemory()
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{
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uint msp = __get_MSP();
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if(msp < (uint)&IRQ_STACK[0] || msp > (uint)&IRQ_STACK[IRQ_STACK_SIZE]) return false;
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uint psp = __get_PSP();
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void* p = malloc(0x10);
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if(!p) return false;
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free(p);
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if((uint)p >= psp) return false;
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return true;
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}
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// 获取JTAG编号，ST是0x041，GD是0x7A3
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uint16_t Get_JTAG_ID()
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{
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if( *( uint8_t *)( 0xE00FFFE8 ) & 0x08 )
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{
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return ((*(uint8_t *)(0xE00FFFD0) & 0x0F ) << 8 ) |
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((*(uint8_t *)(0xE00FFFE4) & 0xFF ) >> 3 ) |
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((*(uint8_t *)(0xE00FFFE8) & 0x07 ) << 5 ) + 1 ;
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}
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return 0;
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}
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#if defined(GD32) && defined(STM32F10X)
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void Bootstrap()
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{
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uint n = 0;
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uint RCC_CFGR_ADC_BITS = RCC_CFGR_ADCPRE_DIV8;
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uint FLASH_ACR_LATENCY_BITS = 0;
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uint RCC_CFGR_USBPRE_BIT = 0;
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uint mull, mull2;
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// 是否GD
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bool isGD = Get_JTAG_ID() == 0x7A3;
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if(isGD && Sys.Clock == 72000000) Sys.Clock = 120000000;
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// 确保关闭中断，为了方便调试，Debug时不关闭
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#ifndef DEBUG
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//__disable_irq();
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#endif
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n = Sys.Clock / 14000000;
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if (n < 6)
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RCC_CFGR_ADC_BITS = RCC_CFGR_ADCPRE_DIV6;
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else
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RCC_CFGR_ADC_BITS = RCC_CFGR_ADCPRE_DIV8;
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// GD32的Flash零等待
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if (isGD)
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{
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// 对于GD来说，这个寄存器位其实没有什么意义，内部设定好等待时间了
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// GD 256k以内是零等待，512k以内是1等待，以后是2等待
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FLASH_ACR_LATENCY_BITS = FLASH_ACR_LATENCY_0; // 零等待
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}
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else
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{
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//FLASH_ACR_LATENCY_BITS = FLASH_ACR_LATENCY_2; // 等待两个
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n = Sys.Clock / 24000000 - 1;
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FLASH_ACR_LATENCY_BITS = FLASH_ACR_LATENCY_0 + n;
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}
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// 配置JTAG调试支持
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DBGMCU->CR = DBGMCU_CR_DBG_TIM2_STOP | DBGMCU_CR_DBG_SLEEP;
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// 允许访问未对齐内存，不强制8字节栈对齐
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SCB->CCR &= ~(SCB_CCR_UNALIGN_TRP | SCB_CCR_STKALIGN);
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// 捕获所有异常
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CoreDebug->DEMCR |= CoreDebug_DEMCR_VC_HARDERR_Msk | CoreDebug_DEMCR_VC_INTERR_Msk |
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CoreDebug_DEMCR_VC_BUSERR_Msk | CoreDebug_DEMCR_VC_STATERR_Msk |
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CoreDebug_DEMCR_VC_CHKERR_Msk | CoreDebug_DEMCR_VC_NOCPERR_Msk |
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CoreDebug_DEMCR_VC_MMERR_Msk;
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// 为了配置时钟，CPU必须运行在8MHz晶振上
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RCC->CR |= RCC_CR_HSION;
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while(!(RCC->CR & RCC_CR_HSIRDY));
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// 切换到内部时钟
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RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
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// RCC_CFGR_SW_HSI是0，一点意义都没有
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RCC->CFGR |= RCC_CFGR_SW_HSI; // sysclk = AHB = APB1 = APB2 = HSI (8MHz)
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// 关闭 HSE 时钟
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RCC->CR &= ~RCC_CR_HSEON;
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// 关闭 HSE & PLL
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RCC->CR &= ~RCC_CR_PLLON;
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RCC->CR |= ((uint32_t)RCC_CR_HSEON);
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while(!(RCC->CR & RCC_CR_HSERDY));
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// 设置Flash访问时间，并打开预读缓冲
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FLASH->ACR = FLASH_ACR_LATENCY_BITS | FLASH_ACR_PRFTBE;
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RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
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// 支持超频，主频必须是8M的倍频
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mull = Sys.Clock / Sys.CystalClock;
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mull2 = (mull - 2) << 18;
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// 处理0.5倍频
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if( (mull * Sys.CystalClock + Sys.CystalClock / 2) == Sys.Clock )
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{
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mull = 2 * Sys.Clock / Sys.CystalClock;
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// 对于GD32的108MHz，没有除尽。
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if( isGD && mull > 17 )
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mull2 = (mull - 17) << 18 | RCC_CFGR_PLLXTPRE_HSE_Div2 | GD32_PLL_MASK;
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else
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mull2 = (mull - 2 ) << 18 | RCC_CFGR_PLLXTPRE_HSE_Div2;
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}
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RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSE | mull2);
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switch ( 2 * Sys.Clock / 48000000 )
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{
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case 2:
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RCC_CFGR_USBPRE_BIT = RCC_CFGR_USBPRE_Div1;
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break;
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case 3:
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RCC_CFGR_USBPRE_BIT = RCC_CFGR_USBPRE_1Div5;
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break;
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case 4:
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RCC_CFGR_USBPRE_BIT = RCC_CFGR_USBPRE_Div2;
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break;
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case 5:
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RCC_CFGR_USBPRE_BIT = RCC_CFGR_USBPRE_2Div5;
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break;
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default:
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RCC_CFGR_USBPRE_BIT = RCC_CFGR_USBPRE_Div1;
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break;
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}
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// 最终时钟配置
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RCC->CFGR |= RCC_CFGR_USBPRE_BIT // USB clock
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| RCC_CFGR_HPRE_DIV1 // AHB clock
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| RCC_CFGR_PPRE1_DIV2 // APB1 clock
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| RCC_CFGR_PPRE2_DIV1 // APB2 clock
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| RCC_CFGR_ADC_BITS; // ADC clock (max 14MHz)
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// 打开 HSE & PLL
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RCC->CR |= RCC_CR_PLLON;// | RCC_CR_HSEON;
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// 等到 PPL 达到时钟频率
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while(!(RCC->CR & RCC_CR_PLLRDY));
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// 最终时钟配置
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RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
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RCC->CFGR |= RCC_CFGR_SW_PLL; // sysclk = pll out (SYSTEM_CLOCK_HZ)
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while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08);
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// 最小化外设时钟
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RCC->AHBENR = RCC_AHBENR_SRAMEN | RCC_AHBENR_FLITFEN;
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RCC->APB2ENR = RCC_APB2ENR_AFIOEN;
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RCC->APB1ENR = RCC_APB1ENR_PWREN;
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// 关闭 HSI 时钟
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RCC->CR &= ~RCC_CR_HSION;
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// 计算当前工作频率
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mull = RCC->CFGR & (CFGR_PLLMull_Mask | GD32_PLL_MASK);
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if((mull & GD32_PLL_MASK) != 0) // 兼容GD32的108MHz
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mull = ((mull & CFGR_PLLMull_Mask) >> 18) + 17;
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else
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mull = ( mull >> 18) + 2;
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//TSys::Frequency = HSI_VALUE * pllmull;
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// 不能直接用HSI_VALUE，因为不同的硬件设备使用不同的晶振
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Sys.Clock = Sys.CystalClock * mull;
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if( (RCC->CFGR & RCC_CFGR_PLLXTPRE_HSE_Div2) && !isGD ) Sys.Clock /= 2;
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}
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#endif
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void ShowError(int code) { debug_printf("系统错误！%d\r\n", code); }
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TSys::TSys()
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{
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Set_SP();
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#if DEBUG
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Debug = true;
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#else
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Debug = false;
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#endif
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Inited = false;
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Clock = 72000000;
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CystalClock = 8000000; // 晶振时钟
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MessagePort = 0; // COM1;
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#ifdef STM32F10X
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ID[0] = *(__IO uint *)(0X1FFFF7F0); // 高字节
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ID[1] = *(__IO uint *)(0X1FFFF7EC); //
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ID[2] = *(__IO uint *)(0X1FFFF7E8); // 低字节
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#else
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ID[0] = *(__IO uint *)(0X1FFFF7B4); // 高字节
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ID[1] = *(__IO uint *)(0X1FFFF7B0); //
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ID[2] = *(__IO uint *)(0X1FFFF7AC); // 低字节
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#endif
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CPUID = SCB->CPUID; // MCU编码。低字设备版本，高字子版本
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MCUID = DBGMCU->IDCODE; // MCU编码。低字设备版本，高字子版本
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FlashSize = *(__IO ushort *)(0x1FFFF7E0); // 容量
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IsGD = Get_JTAG_ID() == 0x7A3;
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if(IsGD) Clock = 120000000;
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#if DEBUG
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OnError = ShowError;
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#else
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OnError = 0;
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#endif
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#ifdef STM32F10X
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// 关闭JTAG仿真接口，只打开SW仿真。
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RCC->APB2ENR |= RCC_APB2ENR_AFIOEN; // 打开时钟
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AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_JTAGDISABLE; //关闭JTAG仿真接口，只打开SW仿真。
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#endif
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Interrupt.Init();
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_TaskCount = 0;
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memset(_Tasks, 0, ArrayLength(_Tasks));
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}
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TSys::~TSys()
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{
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//if(g_Time) delete g_Time;
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//g_Time = NULL;
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}
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void TSys::Init(void)
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{
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// 获取当前频率
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RCC_ClocksTypeDef clock;
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RCC_GetClocksFreq(&clock);
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#if defined(GD32) && defined(STM32F10X)
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// 如果当前频率不等于配置，则重新配置时钟
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if(Clock != clock.SYSCLK_Frequency) Bootstrap();
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#else
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Clock = clock.SYSCLK_Frequency;
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#endif
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#ifdef STM32F10X
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NVIC_PriorityGroupConfig( NVIC_PriorityGroup_4); //中断优先级分配方案4 四位都是抢占优先级
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#endif
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// 必须在系统主频率确定以后再初始化时钟
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Time.Init();
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Inited = true;
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}
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void TSys::ShowInfo()
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{
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// 系统信息
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debug_printf("主频：%dMHz Flash: %dkByte\r\n", Sys.Clock/1000000, Sys.FlashSize);
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debug_printf("芯片：%08X-%08X-%08X\r\n", Sys.ID[0], Sys.ID[1], Sys.ID[2]);
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debug_printf("CPUID: 0x%08X MCUID: 0x%08X \r\n", Sys.CPUID, Sys.MCUID);
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debug_printf("\r\n");
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}
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#define __CRC__MODULE__ 1
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#ifdef __CRC__MODULE__
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//
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// CRC 32 table for use under ZModem protocol, IEEE 802
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// G(x) = x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1
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//
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static const uint c_CRCTable[ 256 ] =
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{
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0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005,
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0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD,
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0x4C11DB70, 0x48D0C6C7, 0x4593E01E, 0x4152FDA9, 0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75,
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0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3, 0x709F7B7A, 0x745E66CD,
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0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039, 0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5,
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0xBE2B5B58, 0xBAEA46EF, 0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D,
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0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 0xC7361B4C, 0xC3F706FB, 0xCEB42022, 0xCA753D95,
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0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, 0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D,
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0x34867077, 0x30476DC0, 0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072,
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0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 0x018AEB13, 0x054BF6A4, 0x0808D07D, 0x0CC9CDCA,
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0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE, 0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02,
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0x5E9F46BF, 0x5A5E5B08, 0x571D7DD1, 0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA,
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0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B, 0xBB60ADFC, 0xB6238B25, 0xB2E29692,
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0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6, 0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A,
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0xE0B41DE7, 0xE4750050, 0xE9362689, 0xEDF73B3E, 0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2,
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0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34, 0xDC3ABDED, 0xD8FBA05A,
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0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637, 0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB,
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0x4F040D56, 0x4BC510E1, 0x46863638, 0x42472B8F, 0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53,
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0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5, 0x3F9B762C, 0x3B5A6B9B,
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0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF, 0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623,
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0xF12F560E, 0xF5EE4BB9, 0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B,
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0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD, 0xCDA1F604, 0xC960EBB3,
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0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, 0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B,
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0x9B3660C6, 0x9FF77D71, 0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3,
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0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 0x4E8EE645, 0x4A4FFBF2, 0x470CDD2B, 0x43CDC09C,
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0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8, 0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24,
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0x119B4BE9, 0x155A565E, 0x18197087, 0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC,
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0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D, 0x2056CD3A, 0x2D15EBE3, 0x29D4F654,
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0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0, 0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C,
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0xE3A1CBC1, 0xE760D676, 0xEA23F0AF, 0xEEE2ED18, 0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4,
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0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662, 0x933EB0BB, 0x97FFAD0C,
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0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668, 0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4
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};
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uint TSys::Crc(const void* rgBlock, int len, uint crc)
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{
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const byte* ptr = (const byte*)rgBlock;
|
||
|
||
while(len-- > 0)
|
||
{
|
||
crc = c_CRCTable[ ((crc >> 24) ^ (*ptr++)) & 0xFF ] ^ (crc << 8);
|
||
}
|
||
|
||
return crc;
|
||
}
|
||
#endif
|
||
|
||
#define __TASK__MODULE__ 1
|
||
#ifdef __TASK__MODULE__
|
||
// 创建任务，返回任务编号。priority优先级，dueTime首次调度时间us，period调度间隔us，-1表示仅处理一次
|
||
uint TSys::AddTask(Func func, uint dueTime, int period)
|
||
{
|
||
// 屏蔽中断，否则可能有线程冲突
|
||
SmartIRQ irq;
|
||
|
||
// 找一个空闲位给它
|
||
int i = 0;
|
||
while(i < ArrayLength(_Tasks) && _Tasks[i++] != NULL);
|
||
assert_param(i < ArrayLength(_Tasks));
|
||
|
||
Task* task = new Task();
|
||
_Tasks[i - 1] = task;
|
||
task->ID = i;
|
||
task->Callback = func;
|
||
task->Period = period;
|
||
task->NextTime = Time.CurrentMicrosecond() + dueTime;
|
||
|
||
_TaskCount++;
|
||
debug_printf("添加任务%d 0x%08x\r\n", task->ID, func);
|
||
|
||
return task->ID;
|
||
}
|
||
|
||
void TSys::RemoveTask(uint taskid)
|
||
{
|
||
assert_param(taskid > 0);
|
||
assert_param(taskid <= _TaskCount);
|
||
|
||
Task* task = _Tasks[taskid - 1];
|
||
_Tasks[taskid - 1] = NULL;
|
||
if(task)
|
||
{
|
||
debug_printf("删除任务%d 0x%08x\r\n", task->ID, task->Callback);
|
||
delete task;
|
||
|
||
_TaskCount--;
|
||
}
|
||
}
|
||
|
||
void TSys::Start()
|
||
{
|
||
debug_printf("系统准备就绪，开始循环处理%d个任务！\r\n", _TaskCount);
|
||
|
||
_Running = true;
|
||
while(_Running)
|
||
{
|
||
//uint minTime = 0xFFFFFFFF; // 最小等待时间
|
||
uint now = Time.CurrentMicrosecond(); // 当前时间
|
||
for(int i=0; i < ArrayLength(_Tasks); i++)
|
||
{
|
||
Task* task = _Tasks[i];
|
||
if(task && task->NextTime <= now)
|
||
{
|
||
// 先计算下一次时间
|
||
task->NextTime += task->Period;
|
||
task->Callback();
|
||
|
||
// 如果只是一次性任务，在这里清理
|
||
if(task->Period < 0)
|
||
{
|
||
_Tasks[i] = NULL;
|
||
delete task;
|
||
}
|
||
}
|
||
}
|
||
|
||
//if(minTime > 0) Delay(minTime);
|
||
}
|
||
debug_printf("系统停止调度，共有%d个任务！\r\n", _TaskCount);
|
||
}
|
||
|
||
void TSys::Stop()
|
||
{
|
||
debug_printf("系统停止！\r\n");
|
||
_Running = false;
|
||
|
||
// 销毁所有任务
|
||
/*for(int i=0; i < ArrayLength(_Tasks); i++)
|
||
{
|
||
Task* task = _Tasks[i];
|
||
if(task) delete task;
|
||
}
|
||
memset(_Tasks, 0, ArrayLength(_Tasks));*/
|
||
}
|
||
#endif
|