STM32F407通过FSMC连接W5100S进行TCP网络通信
一、W5100S硬件
1.HS-NM5100SA模块
模块厂家:成都浩然电子http://www.hschip.com
HS-NM5100SA以太网络控制器接口模块是将W5100S与必要的外围元器件集成在一块电路板上,为客户提供便利应用的产品。
1. 它保持了W5100S的全部功能和性能;
2. 将W5100S与MCU接口(SPI接口和并行总线接口)通过排针引出;
3. RJ-45座内部集成网络变压器,网线可直接与模块连接;
4. RJ-45上的指示灯可以指示W5100S的以太网连接状态;
5. 直流3.3V供电;
6. 严格的老化测试保证产品优质的品质。
2.设置通信模式
模块集成了总线模式和SPI模式,通过W5100S的MOD[3~0]进行选择
模块背面有电阻用来设置总线模式或SPI模式,设置方式如下图:
模块原理图
二.与单片机连接
使用单片机FSMC通信接口与W5100S模块连接
包括:
- 13根FSMC线(8根数据线+2根地址线+读/写/片选)
- 1根W5100S硬件复位线
- 3.3V供电
单片机FSMC配置复用模式
void FSMC_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef Timing;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD|RCC_AHB1Periph_GPIOE,ENABLE);
RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14| GPIO_Pin_15| GPIO_Pin_0| GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7| GPIO_Pin_8| GPIO_Pin_9| GPIO_Pin_10;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11| GPIO_Pin_12;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4| GPIO_Pin_5;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource14,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource15,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource0,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource1,GPIO_AF_FSMC);
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(GPIOD,GPIO_PinSource11,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource12,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource4,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource5,GPIO_AF_FSMC);
GPIO_PinAFConfig(GPIOD,GPIO_PinSource7,GPIO_AF_FSMC);
Timing.FSMC_AddressSetupTime = 8;
Timing.FSMC_AddressHoldTime = 0;
Timing.FSMC_DataSetupTime = 16;
Timing.FSMC_BusTurnAroundDuration = 0;
Timing.FSMC_CLKDivision = 0;
Timing.FSMC_DataLatency = 0;
Timing.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM1;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType =FSMC_MemoryType_SRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode =FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait=FSMC_AsynchronousWait_Disable;
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 = &Timing;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &Timing;
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);
}
W5100S复位引脚配置成输出模式
#define W5100S_RSTn GPIO_Pin_12
#define W5100S_RSTn_PORT GPIOA
#define W5100S_RSTn_CLK RCC_AHB1Periph_GPIOA
void Reset_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(W5100S_RSTn_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin = W5100S_RSTn;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_Init(W5100S_RSTn_PORT, &GPIO_InitStructure);
GPIO_SetBits(W5100S_RSTn_PORT, W5100S_RSTn);
}
三、程序源码
STM32F407源码已上传到我的资源https://download.csdn.net/download/sgjiajia/13122385点击进入
STM32F407通过FSMC连接W5100S进行网络通信.rar
包含TCP_Server服务器模式和TCP_Client客户端模式
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