实现了番茄时钟的25分钟计时，开机后led闪烁25次，每过1分钟闪烁次数递减一次。计时结束后，蜂鸣器蜂鸣25次。

T2EC8 000:011.617 SEGGER J-Link V7.22b Log File T2EC8 000:011.752 DLL Compiled: Jun 17 2021 17:22:49 T2EC8 000:011.758 Logging started @ 2022-07-12 22:54 T2EC8 000:011.763 - 11.765ms T2EC8 000:011.775 JLINK_SetWarnOutHandler(...) T2EC8 000:011.782 - 0.009ms T2EC8 000:011.788 JLINK_OpenEx(...) T2EC8 000:013.851 Firmware: J-Link V9 compiled May 7 2021 16:26:12 T2EC8 000:014.484 Firmware: J-Link V9 compiled May 7 2021 16:26:12 T2EC8 000:014.744 Decompressing FW timestamp took 222 us T2EC8 000:022.484 Hardware: V9.60 T2EC8 000:022.500 S/N: 69618583 T2EC8 000:022.513 OEM: SEGGER T2EC8 000:022.520 Feature(s): RDI, GDB, FlashDL, FlashBP, JFlash T2EC8 000:023.880 TELNET listener socket opened on port 19021 T2EC8 000:024.002 WEBSRV Starting webserver T2EC8 000:024.152 WEBSRV Webserver running on local port 19080 T2EC8 000:024.162 - 12.376ms returns "O.K." T2EC8 000:024.176 JLINK_GetEmuCaps() T2EC8 000:024.181 - 0.008ms returns 0xB9FF7BBF T2EC8 000:024.189 JLINK_TIF_GetAvailable(...) T2EC8 000:024.342 - 0.157ms T2EC8 000:024.355 JLINK_SetErrorOutHandler(...) T2EC8 000:024.360 - 0.007ms T2EC8 000:024.424 JLINK_ExecCommand("ProjectFile = "F:\Desktop_file\KZ_lesson\07-1 beep_led_min_hour_display\Project\RVMDK\JLinkSettings.ini"", ...). T2EC8 000:036.650 - 12.237ms returns 0x00 T2EC8 000:039.300 JLINK_ExecCommand("Device = STM32F103VE", ...). T2EC8 000:042.638 Device "STM32F103VE" selected. T2EC8 000:043.170 - 3.863ms returns 0x00 T2EC8 000:043.191 JLINK_GetHardwareVersion() T2EC8 000:043.196 - 0.007ms returns 96000 T2EC8 000:043.202 JLINK_GetDLLVersion() T2EC8 000:043.207 - 0.006ms returns 72202 T2EC8 000:043.212 JLINK_GetOEMString(...) T2EC8 000:043.218 JLINK_GetFirmwareString(...) T2EC8 000:043.228 - 0.012ms T2EC8 000:049.915 JLINK_GetDLLVersion() T2EC8 000:049.930 - 0.018ms returns 72202 T2EC8 000:049.937 JLINK_GetCompileDateTime() T2EC8 000:049.942 - 0.007ms T2EC8 000:055.140 JLINK_GetFirmwareString(...) T2EC8 000:055.158 - 0.019ms T2EC8 000:057.438 JLINK_GetHardwareVersion() T2EC8 000:057.452 - 0.017ms returns 96000 T2EC8 000:059.439 JLINK_GetSN() T2EC8 000:059.452 - 0.015ms returns 69618583 T2EC8 000:061.286 JLINK_GetOEMString(...) T2EC8 000:064.999 JLINK_TIF_Select(JLINKARM_TIF_JTAG) T2EC8 000:066.537 - 1.547ms returns 0x00 T2EC8 000:066.554 JLINK_HasError() T2EC8 000:066.580 JLINK_SetSpeed(50000) T2EC8 000:066.924 - 0.367ms T2EC8 000:066.961 JLINK_GetIdData(pIdData) T2EC8 000:069.422 InitTarget() start T2EC8 000:069.436 J-Link Script File: Executing InitTarget() T2EC8 000:078.890 InitTarget() end T2EC8 000:082.479 TotalIRLen = 9, IRPrint = 0x0011 T2EC8 000:087.135 JTAG chain detection found 2 devices: T2EC8 000:089.050 #0 Id: 0x3BA00477, IRLen: 04, CoreSight JTAG-DP T2EC8 000:091.368 #1 Id: 0x06414041, IRLen: 05, STM32 Boundary Scan T2EC8 000:095.443 DPv0 detected T2EC8 000:097.514 Scanning AP map to find all available APs T2EC8 000:100.941 AP[1]: Stopped AP scan as end of AP map has been reached T2EC8 000:103.012 AP[0]: AHB-AP (IDR: 0x14770011) T2EC8 000:104.962 Iterating through AP map to find AHB-AP to use T2EC8 000:108.448 AP[0]: Core found T2EC8 000:110.456 AP[0]: AHB-AP ROM base: 0xE00FF000 T2EC8 000:114.488 CPUID register: 0x411FC231. Implementer code: 0x41 (ARM) T2EC8 000:118.402 Found Cortex-M3 r1p1, Little endian. T2EC8 000:119.503 -- Max. mem block: 0x00010C40 T2EC8 000:120.010 CPU_ReadMem(4 bytes @ 0xE000EDF0) T2EC8 000:120.976 CPU_WriteMem(4 bytes @ 0xE000EDF0) T2EC8 000:121.549 CPU_ReadMem(4 bytes @ 0xE0002000) T2EC8 000:124.534 FPUnit: 6 code (BP) slots and 2 literal slots T2EC8 000:124.558 CPU_ReadMem(4 bytes @ 0xE000EDFC) T2EC8 000:125.221 CPU_WriteMem(4 bytes @ 0xE000EDFC) T2EC8 000:125.701 CPU_ReadMem(4 bytes @ 0xE0001000) T2EC8 000:126.172 CPU_WriteMem(4 bytes @ 0xE0001000) T2EC8 000:126.566 CPU_ReadMem(4 bytes @ 0xE000ED88) T2EC8 000:127.068 CPU_WriteMem(4 bytes @ 0xE000ED88) T2EC8 000:127.544 CPU_ReadMem(4 bytes @ 0xE000ED88) T2EC8 000:128.003 CPU_WriteMem(4 bytes @ 0xE000ED88) T2EC8 000:131.419 CoreSight components: T2EC8 000:133.308 ROMTbl[0] @ E00FF000 T2EC8 000:133.324 CPU_ReadMem(64 bytes @ 0xE00FF000) T2EC8 000:134.053 CPU_ReadMem(32 bytes @ 0xE000EFE0) T2EC8 000:137.274 ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 001BB000 SCS T2EC8 000:137.292 CPU_ReadMem(32 bytes @ 0xE0001FE0) T2EC8 000:140.063 ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 001BB002 DWT T2EC8 000:140.097 CPU_ReadMem(32 bytes @ 0xE0002FE0) T2EC8 000:143.037 ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 000BB003 FPB T2EC8 000:143.061 CPU_ReadMem(32 bytes @ 0xE0000FE0) T2EC8 000:149.107 ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 001BB001 ITM T2EC8 000:149.133 CPU_ReadMem(32 bytes @ 0xE0040FE0) T2EC8 000:152.009 ROMTbl[0][4]: E0040000, CID: B105900D, PID: 001BB923 TPIU-Lite T2EC8 000:152.028 CPU_ReadMem(32 bytes @ 0xE0041FE0) T2EC8 000:154.574 ROMTbl[0][5]: E0041000, CID: B105900D, PID: 101BB924 ETM-M3 T2EC8 000:154.645 pIdData->ScanLen=9 T2EC8 000:154.652 T2EC8 000:154.657 pIdData->NumDevices=2 T2EC8 000:154.663 T2EC8 000:154.668 pIdData->aId[0]=0x3BA00477 T2EC8 000:154.674 T2EC8 000:154.679 pIdData->aIrRead[0]=0 T2EC8 000:154.685 T2EC8 000:154.689 pIdData->aScanLen[0]=0 T2EC8 000:154.695 T2EC8 000:154.700 pIdData->aScanRead[0]=0 T2EC8 000:154.706 T2EC8 000:154.710 - 87.751ms T2EC8 000:154.727 JLINK_JTAG_GetDeviceID(DeviceIndex = 0) T2EC8 000:154.734 - 0.009ms returns 1000342647 T2EC8 000:154.740 JLINK_JTAG_GetDeviceInfo(DeviceIndex = 0) T2EC8 000:154.745 - 0.007ms returns 0 T2EC8 000:154.751 JLINK_JTAG_GetDeviceID(DeviceIndex = 1) T2EC8 000:154.755 - 0.006ms returns 104939585 T2EC8 000:154.762 JLINK_JTAG_GetDeviceInfo(DeviceIndex = 1) T2EC8 000:154.767 - 0.006ms returns 0 T2EC8 000:154.774 JLINK_GetDLLVersion() T2EC8 000:154.779 - 0.006ms returns 72202 T2EC8 000:154.785 JLINK_CORE_GetFound() T2EC8 000:154.790 - 0.006ms returns 0x30000FF T2EC8 000:154.796 JLINK_GetDebugInfo(0x100 = JLINKARM_ROM_TABLE_ADDR_INDEX) T2EC8 000:154.801 Value=0xE00FF000 T2EC8 000:154.821 - 0.027ms returns 0 T2EC8 000:157.079 JLINK_GetDebugInfo(0x100 = JLINKARM_ROM_TABLE_ADDR_INDEX) T2EC8 000:157.094 Value=0xE00FF000 T2EC8 000:157.100 - 0.023ms returns 0 T2EC8 000:157.106 JLINK_GetDebugInfo(0x101 = JLINKARM_DEBUG_INFO_ETM_ADDR_INDEX) T2EC8 000:157.112 Value=0xE0041000 T2EC8 000:157.118 - 0.013ms returns 0 T2EC8 000:157.124 JLINK_ReadMemEx(0xE0041FD0, 0x20 Bytes, Flags = 0x02000004) T2EC8 000:157.323 CPU_ReadMem(32 bytes @ 0xE0041FD0) T2EC8 000:157.914 Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... T2EC8 000:157.926 - 0.804ms returns 32 (0x20) T2EC8 000:157.935 JLINK_GetDebugInfo(0x102 = JLINKARM_DEBUG_INFO_MTB_ADDR_INDEX) T2EC8 000:157.940 Value=0x00000000 T2EC8 000:157.947 - 0.014ms returns 0 T2EC8 000:157.953 JLINK_GetDebugInfo(0x103 = JLINKARM_DEBUG_INFO_TPIU_ADDR_INDEX) T2EC8 000:157.957 Value=0xE0040000 T2EC8 000:157.964 - 0.013ms returns 0 T2EC8 000:157.969 JLINK_GetDebugInfo(0x104 = JLINKARM_DEBUG_INFO_ITM_ADDR_INDEX) T2EC8 000:157.974 Value=0xE0000000 T2EC8 000:157.980 - 0.013ms returns 0 T2EC8 000:157.986 JLINK_GetDebugInfo(0x105 = JLINKARM_DEBUG_INFO_DWT_ADDR_INDEX) T2EC8 000:157.990 Value=0xE0001000 T2EC8 000:157.997 - 0.013ms returns 0 T2EC8 000:158.002 JLINK_GetDebugInfo(0x106 = JLINKARM_DEBUG_INFO_FPB_ADDR_INDEX) T2EC8 000:158.007 Value=0xE0002000 T2EC8 000:158.013 - 0.013ms returns 0 T2EC8 000:158.018 JLINK_GetDebugInfo(0x107 = JLINKARM_DEBUG_INFO_NVIC_ADDR_INDEX) T2EC8 000:158.023 Value=0xE000E000 T2EC8 000:158.029 - 0.013ms returns 0 T2EC8 000:158.035 JLINK_GetDebugInfo(0x10C = JLINKARM_DEBUG_INFO_DBG_ADDR_INDEX) T2EC8 000:158.040 Value=0xE000EDF0 T2EC8 000:158.046 - 0.013ms returns 0 T2EC8 000:158.051 JLINK_GetDebugInfo(0x01 = Unknown) T2EC8