使用模拟SPI接口驱动ST7796-LCD，主控MCU为STM32F407芯片 笔者详细介绍整个驱动的实现过程，并使用STM32

T15E8 000:016.819 SEGGER J-Link V7.82 Log File T15E8 000:016.943 DLL Compiled: Oct 13 2022 13:32:51 T15E8 000:016.950 Logging started @ 2024-05-08 07:06 T15E8 000:016.955 - 16.957ms T15E8 000:016.966 JLINK_SetWarnOutHandler(...) T15E8 000:016.973 - 0.009ms T15E8 000:016.980 JLINK_OpenEx(...) T15E8 000:018.691 Firmware: J-Link V9 compiled May 7 2021 16:26:12 T15E8 000:019.068 Firmware: J-Link V9 compiled May 7 2021 16:26:12 T15E8 000:019.254 Decompressing FW timestamp took 138 us T15E8 000:026.913 Hardware: V9.20 T15E8 000:026.947 S/N: 4294967295 T15E8 000:026.955 OEM: SEGGER T15E8 000:026.963 Feature(s): GDB, RDI, FlashBP, FlashDL, JFlash, RDDI T15E8 000:028.239 TELNET listener socket opened on port 19021 T15E8 000:028.335 WEBSRV WEBSRV_Init(): Starting webserver thread(s) T15E8 000:028.466 WEBSRV Webserver running on local port 19080 T15E8 000:059.282 - 42.326ms returns "O.K." T15E8 000:059.334 JLINK_GetEmuCaps() T15E8 000:059.351 - 0.020ms returns 0xB9FF7BBF T15E8 000:059.376 JLINK_TIF_GetAvailable(...) T15E8 000:059.669 - 0.300ms T15E8 000:059.681 JLINK_SetErrorOutHandler(...) T15E8 000:059.695 - 0.016ms T15E8 000:059.723 JLINK_ExecCommand("ProjectFile = "G:\workspace_stm32\stm32_open_test_proj\stm32_f407_lcd_proj\MDK-ARM\JLinkSettings.ini"", ...). T15E8 000:071.109 - 11.397ms returns 0x00 T15E8 000:071.151 JLINK_ExecCommand("Device = STM32F407IGTx", ...). T15E8 000:071.761 Device "STM32F407IG" selected. T15E8 000:072.069 - 0.930ms returns 0x00 T15E8 000:072.106 JLINK_ExecCommand("DisableConnectionTimeout", ...). T15E8 000:072.115 - 0.004ms returns 0x01 T15E8 000:072.122 JLINK_GetHardwareVersion() T15E8 000:072.128 - 0.008ms returns 92000 T15E8 000:072.138 JLINK_GetDLLVersion() T15E8 000:072.143 - 0.007ms returns 78200 T15E8 000:072.150 JLINK_GetOEMString(...) T15E8 000:072.157 JLINK_GetFirmwareString(...) T15E8 000:072.162 - 0.007ms T15E8 000:072.183 JLINK_GetDLLVersion() T15E8 000:072.188 - 0.008ms returns 78200 T15E8 000:072.195 JLINK_GetCompileDateTime() T15E8 000:072.200 - 0.007ms T15E8 000:072.211 JLINK_GetFirmwareString(...) T15E8 000:072.217 - 0.008ms T15E8 000:072.227 JLINK_GetHardwareVersion() T15E8 000:072.232 - 0.008ms returns 92000 T15E8 000:072.243 JLINK_GetSN() T15E8 000:072.249 - 0.008ms returns -1 T15E8 000:072.256 JLINK_GetOEMString(...) T15E8 000:072.270 JLINK_TIF_Select(JLINKARM_TIF_SWD) T15E8 000:073.162 - 0.899ms returns 0x00 T15E8 000:073.176 JLINK_HasError() T15E8 000:073.201 JLINK_SetSpeed(5000) T15E8 000:073.297 - 0.102ms T15E8 000:073.310 JLINK_GetId() T15E8 000:073.572 InitTarget() start T15E8 000:073.589 J-Link Script File: Executing InitTarget() T15E8 000:079.852 InitTarget() end T15E8 000:080.472 Found SW-DP with ID 0x2BA01477 T15E8 000:082.544 DPIDR: 0x2BA01477 T15E8 000:082.567 CoreSight SoC-400 or earlier T15E8 000:082.581 Scanning AP map to find all available APs T15E8 000:083.179 AP[1]: Stopped AP scan as end of AP map has been reached T15E8 000:083.196 AP[0]: AHB-AP (IDR: 0x24770011) T15E8 000:083.208 Iterating through AP map to find AHB-AP to use T15E8 000:084.077 AP[0]: Core found T15E8 000:084.094 AP[0]: AHB-AP ROM base: 0xE00FF000 T15E8 000:084.571 CPUID register: 0x410FC241. Implementer code: 0x41 (ARM) T15E8 000:084.593 Found Cortex-M4 r0p1, Little endian. T15E8 000:084.963 -- Max. mem block: 0x00010E60 T15E8 000:085.165 CPU_ReadMem(4 bytes @ 0xE000EDF0) T15E8 000:085.479 CPU_ReadMem(4 bytes @ 0xE0002000) T15E8 000:085.771 FPUnit: 6 code (BP) slots and 2 literal slots T15E8 000:085.784 CPU_ReadMem(4 bytes @ 0xE000EDFC) T15E8 000:086.085 CPU_WriteMem(4 bytes @ 0xE000EDFC) T15E8 000:086.386 CPU_ReadMem(4 bytes @ 0xE0001000) T15E8 000:086.668 CPU_WriteMem(4 bytes @ 0xE0001000) T15E8 000:086.994 CPU_ReadMem(4 bytes @ 0xE000ED88) T15E8 000:087.287 CPU_WriteMem(4 bytes @ 0xE000ED88) T15E8 000:087.587 CPU_ReadMem(4 bytes @ 0xE000ED88) T15E8 000:087.891 CPU_WriteMem(4 bytes @ 0xE000ED88) T15E8 000:088.201 CoreSight components: T15E8 000:088.286 ROMTbl[0] @ E00FF000 T15E8 000:088.298 CPU_ReadMem(64 bytes @ 0xE00FF000) T15E8 000:088.862 CPU_ReadMem(32 bytes @ 0xE000EFE0) T15E8 000:089.295 [0][0]: E000E000 CID B105E00D PID 000BB00C SCS-M7 T15E8 000:089.308 CPU_ReadMem(32 bytes @ 0xE0001FE0) T15E8 000:089.748 [0][1]: E0001000 CID B105E00D PID 003BB002 DWT T15E8 000:089.761 CPU_ReadMem(32 bytes @ 0xE0002FE0) T15E8 000:090.192 [0][2]: E0002000 CID B105E00D PID 002BB003 FPB T15E8 000:090.205 CPU_ReadMem(32 bytes @ 0xE0000FE0) T15E8 000:090.668 [0][3]: E0000000 CID B105E00D PID 003BB001 ITM T15E8 000:090.682 CPU_ReadMem(32 bytes @ 0xE0040FE0) T15E8 000:091.123 [0][4]: E0040000 CID B105900D PID 000BB9A1 TPIU T15E8 000:091.136 CPU_ReadMem(32 bytes @ 0xE0041FE0) T15E8 000:091.571 [0][5]: E0041000 CID B105900D PID 000BB925 ETM T15E8 000:091.849 - 18.545ms returns 0x2BA01477 T15E8 000:091.867 JLINK_GetDLLVersion() T15E8 000:091.873 - 0.009ms returns 78200 T15E8 000:091.882 JLINK_CORE_GetFound() T15E8 000:091.888 - 0.008ms returns 0xE0000FF T15E8 000:091.897 JLINK_GetDebugInfo(0x100 = JLINKARM_ROM_TABLE_ADDR_INDEX) T15E8 000:091.911 Value=0xE00FF000 T15E8 000:091.920 - 0.025ms returns 0 T15E8 000:091.968 JLINK_GetDebugInfo(0x100 = JLINKARM_ROM_TABLE_ADDR_INDEX) T15E8 000:091.979 Value=0xE00FF000 T15E8 000:091.987 - 0.021ms returns 0 T15E8 000:091.994 JLINK_GetDebugInfo(0x101 = JLINKARM_DEBUG_INFO_ETM_ADDR_INDEX) T15E8 000:092.001 Value=0xE0041000 T15E8 000:092.009 - 0.017ms returns 0 T15E8 000:092.024 JLINK_ReadMemEx(0xE0041FD0, 0x20 Bytes, Flags = 0x02000004) T15E8 000:092.051 CPU_ReadMem(32 bytes @ 0xE0041FD0) T15E8 000:092.469 Data: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... T15E8 000:092.482 - 0.460ms returns 32 (0x20) T15E8 000:092.491 JLINK_GetDebugInfo(0x102 = JLINKARM_DEBUG_INFO_MTB_ADDR_INDEX) T15E8 000:092.498 Value=0x00000000 T15E8 000:092.506 - 0.017ms returns 0 T15E8 000:092.513 JLINK_GetDebugInfo(0x103 = JLINKARM_DEBUG_INFO_TPIU_ADDR_INDEX) T15E8 000:092.519 Value=0xE0040000 T15E8 000:092.527 - 0.017ms returns 0 T15E8 000:092.535 JLINK_GetDebugInfo(0x104 = JLINKARM_DEBUG_INFO_ITM_ADDR_INDEX) T15E8 000:092.541 Value=0xE0000000 T15E8 000:092.549 - 0.016ms returns 0 T15E8 000:092.556 JLINK_GetDebugInfo(0x105 = JLINKARM_DEBUG_INFO_DWT_ADDR_INDEX) T15E8 000:092.562 Value=0xE0001000 T15E8 000:092.570 - 0.017ms returns 0 T15E8 000:092.577 JLINK_GetDebugInfo(0x106 = JLINKARM_DEBUG_INFO_FPB_ADDR_INDEX) T15E8 000:092.583 Value=0xE0002000 T15E8 000:092.591 - 0.016ms returns 0 T15E8 000:092.599 JLINK_GetDebugInfo(0x107 = JLINKARM_DEBUG_INFO_NVIC_ADDR_INDEX) T15E8 000:092.605 Value=0xE000E000 T15E8 000:092.613 - 0.017ms returns 0 T15E8 000:092.620 JLINK_GetDebugInfo(0x10C = JLINKARM_DEBUG_INFO_DBG_ADDR_INDEX) T15E8 000:092.626 Value=0xE000EDF0 T15E8 000:092.634 - 0.016ms returns 0 T15E8 000:092.641 JLINK_GetDebugInfo(0x01 = Unknown) T15E8 000:092.652 Value=0x00000001 T15E8 000:092.660 - 0.021ms returns 0 T15E8 000:092.667 JLINK_ReadMemU32(0xE000ED00, 0x1 Items) T15E8 000:092.678 CPU_ReadMem(4 bytes @ 0xE000ED00) T15E8 000:092.953 Data: 41 C2 0F 41 T15E8 000:092.966 Debug reg: CPUID T15E8 000:092.974 - 0.309ms returns 1 (0x1) T15E8 000:092.983 JLINK_GetDebugInfo(0x10F = JLINKARM_DEBUG_INFO_HAS_CORTEX_M_SECURITY_EXT_INDEX) T15E8 000:092.990 Value=0x00000000 T15E8 000:092.998 - 0.017ms returns 0 T15E8 000:093.005 JLINK_HasError() T15E8 000:093.013 JLINK_SetResetType(JLINKARM_CM3_RESET_TYPE_NORMAL) T15E8 000:093.019 - 0.009ms returns JLINKARM_CM3_RESET_TYPE_NORMAL T15E8 000:093.027 JLINK_Reset() T15E8 000:093.052 CPU is running T15E8 000:093.062 CPU_WriteMem(4 bytes @ 0xE000EDF0) T15E8 000:093.387 CPU is running T15E8 000:093.400 CPU_WriteMem(4 bytes @ 0xE000EDFC) T15E8 000:093.712 Reset: Halt core after reset via