
STM32F407VET6 FSMC接口驱动 DM9000的问题,PD7 接做为片选,PD11做为指令与数据的 代码如下: #define DM9000_DATA *(vu16*)((u32)0x60000000) #define DM9000_CMD *(vu16*)((u32)0x60020000) /******************************************************************************* * 函数名: DM9000AE_CtrlLinesConfig * 参 数: 无 * 返 回: 无 * 功 能: 配置DM9000AE控制口线,FSMC管脚设置为复用功能 */ static void DM9K_CtrlLinesConfig(void) { GPIO_InitTypeDef GPIO_InitStructure; FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure; FSMC_NORSRAMTimingInitTypeDef FSMC_NORSRAMTimingInitStructure; /* FSMC GPIO configure */ RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE); /* Enable GPIOs clock */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE | RCC_AHB1Periph_GPIOF, ENABLE); /* Enable FSMC clock */ /* GPIOD configuration */ GPIO_PinAFConfig(GPIOD, GPIO_PinSource0, GPIO_AF_FSMC); // D2 GPIO_PinAFConfig(GPIOD, GPIO_PinSource1, GPIO_AF_FSMC); // D3 GPIO_PinAFConfig(GPIOD, GPIO_PinSource4, GPIO_AF_FSMC); // NOE GPIO_PinAFConfig(GPIOD, GPIO_PinSource5, GPIO_AF_FSMC); // WE GPIO_PinAFConfig(GPIOD, GPIO_PinSource8, GPIO_AF_FSMC); // D13 GPIO_PinAFConfig(GPIOD, GPIO_PinSource9, GPIO_AF_FSMC); // D14 GPIO_PinAFConfig(GPIOD, GPIO_PinSource10, GPIO_AF_FSMC); // D15 GPIO_PinAFConfig(GPIOD, GPIO_PinSource14, GPIO_AF_FSMC); // D0 GPIO_PinAFConfig(GPIOD, GPIO_PinSource15, GPIO_AF_FSMC); // D1 /* GPIOE configuration */ GPIO_PinAFConfig(GPIOE, GPIO_PinSource7 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource8 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource9 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource10 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource11 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource12 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource13 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource14 , GPIO_AF_FSMC); GPIO_PinAFConfig(GPIOE, GPIO_PinSource15 , GPIO_AF_FSMC); /* GPIOF configuration */ GPIO_PinAFConfig(GPIOD, GPIO_PinSource7 , GPIO_AF_FSMC); // CS---DM9000_CS GPIO_PinAFConfig(GPIOD, GPIO_PinSource11 , GPIO_AF_FSMC); // A16---CMD GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_14 | GPIO_Pin_15; GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; GPIO_Init(GPIOE, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_11; GPIO_Init(GPIOD, &GPIO_InitStructure); } /******************************************************************************* * 函数名: DM9K_FSMCConfig * 参 数: 无 * 返 回: 无 * 功 能: 配置FSMC并口访问时序 */ static void DM9K_FSMCConfig(void) { FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure; FSMC_NORSRAMTimingInitTypeDef FSMC_NORSRAMTimingInitStructure; /*-- FSMC Configuration ------------------------------------------------------*/ /*----------------------- SRAM Bank 2 ----------------------------------------*/ /* FSMC_Bank1_NORSRAM4 configuration */ FSMC_NORSRAMTimingInitStructure.FSMC_AddressSetupTime = 15; FSMC_NORSRAMTimingInitStructure.FSMC_AddressHoldTime = 10; FSMC_NORSRAMTimingInitStructure.FSMC_DataSetupTime = 50; FSMC_NORSRAMTimingInitStructure.FSMC_BusTurnAroundDuration = 10; FSMC_NORSRAMTimingInitStructure.FSMC_CLKDivision = 0; FSMC_NORSRAMTimingInitStructure.FSMC_DataLatency = 0; FSMC_NORSRAMTimingInitStructure.FSMC_AccessMode = FSMC_AccessMode_A; /* Color LCD configuration ------------------------------------ LCD configured as follow: - Data/Address MUX = Disable - Memory Type = SRAM - Data Width = 16bit - Write Operation = Enable - Extended Mode = Enable - Asynchronous Wait = Disable */ FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2; FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable; FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM; FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b; FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable; FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low; FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable; FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState; FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable; FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable; FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable; FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable; FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &FSMC_NORSRAMTimingInitStructure; FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &FSMC_NORSRAMTimingInitStructure; FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure); /* - BANK 2 (of NOR/SRAM Bank 0~3) is enabled */ FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM2, ENABLE); } 注意红色部分,如果是PD7,应该选择FSMC_Bank1_NORSRAM1而不是FSMC_Bank1_NORSRAM2,但是为FSMC_Bank1_NORSRAM1 的时候,就会死在 //Hard Fault exception handler void HardFault_Handler(void) { while (1) { } }这里面,改为FSMC_Bank1_NORSRAM2就正常了,请是怎么一回事呢? 有遇到这个情况 的朋友吗? |
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