7. Slave发送ACK 8. Slave发送data(8bit),即寄存器里的值 9. Master发送ACK 10. 第8步和第9步可以重复多次,即顺序读多个寄存器 读一个寄存器 读多个寄存器 2.I2C master的verilog model 1modulei2c_master_model (scl, sda); 2inoutscl; 3inoutsda; 4 5parameterslave_addr_reg =7'b0110101; //slave...
i2c的scl和sda信号的输出都是漏极开路,只能输出低电平和高阻态,且外接了一个上拉电阻,将i2c总线空闲时的输出电平拉至高电平,最终实现了线与的功能。 而在fpga内部,我们通常将端口处i2c的scl和sda信号定义为inout类型的信号,用verilog代码描述则为: inout scl; wire scl_out, scl_in; assign scl = (s...
接口部分的寄存器全都用FPGA 的系统时钟驱动。 2.2 I2C SLAVE 控制逻辑的实现 I2C SLAVE 控制逻辑状态机是整个模块的核心,所有I2C 总线相应的控制都由其完成。状态机有四个状态:IDLE,START,SAMPLE 和STOP 组成。Verilog 的定义如下: `define IDLE 2‘b00 `define START 2’b01 `define STOP 2‘b10 `define SA...
1. Master发送I2Caddr(7bit)和 w操作0(1bit),等待ACK 2. Slave发送ACK 3. Master发送reg addr(8bit),等待ACK 4. Slave发送ACK 5. Master发起START 6. Master发送I2C addr(7bit)和R读1位,等待ACK 7. Slave发送ACK 8.Slave发送data(8bit),即寄存器里的值 9. Master发送ACK 10. 第8步和第9步可以...
// OpenCores' I2C Slave, Verilog // debounce sda and scl always @(posedge clk) begin if (rstSyncToClk == 1'b1) begin sdaPipe <= {`DEB_I2C_LEN{1'b1}}; sdaDeb <= 1'b1; sclPipe <= {`DEB_I2C_LEN{1'b1}}; sclDeb <= 1'b1; ...
Verilog I2C interface for FPGA implementation. Contribute to alexforencich/verilog-i2c development by creating an account on GitHub.
The design is also synthesized in Xilinx XST 14.1. This module acts as a slave for the microprocessor which can be customized for no data loss.Keywords: Inter Integrated circuit, serial data, serial clock, slave, verilogDeepa KaithDr. Janankkumar B. PatelMr. Neeraj Gupta...
Verilog HDL中I2C代码module i2c ( CLOCK, I2C_SCLK, //I2C CLOCK I2C_SDAT, //I2C DATA I2C_DATA, //DATA:[SLAVE_ADDR,SUB_ADDR,DATA] GO, //GO transfor END, //END transfor W_R, //W_R ACK, //ACK RESET, //TEST SD_COUNTER,
Contains Quartus project with I2C slave Verilog code Documentation Contains ModelSim wave forms Arduino Contains Arduino I2C master code ###This is sample code only, produced for personal experimentation and provided for illustrative purposes only. This code has not been thoroughly tested under all cond...
资料介绍 verilog实现I2C通信的slave模块源码状态机设位计可做I2C接口的仿真模型 //`timescale 1ns/1ps module I2C_slv ( input [6:0] slv_id, input RESET, input scl_i, //I2C clk input sda_i, //I2C data in input [7:0] I2C_RDDATA, ...