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这里我只放代码，在Diamond里添加RD1046里面的Verlag代码，通过线来连接（slave_passthru），具体代码如下：
在Diamond中需要添加：
wire i2c0clk,i2c0rst,i2c0slv_strb,i2c0slv_cyc,i2c0slv_ack,i2c0slv_we,i2c0intr_active_high;
wire [7:0] i2c0slv_master_data,i2c0slv_slave_data;
wire [31:0] i2c0slv_adr;lm8_sys lm8_sys_inst
(.slave_passthru_i2c0clk(i2c0clk)
, .slave_passthru_i2c0rst(i2c0rst)
, .slave_passthru_i2c0slv_adr(i2c0slv_adr)
, .slave_passthru_i2c0slv_master_data(i2c0slv_master_data)
, .slave_passthru_i2c0slv_slave_data(i2c0slv_slave_data)
, .slave_passthru_i2c0slv_strb(i2c0slv_strb)
, .slave_passthru_i2c0slv_cyc(i2c0slv_cyc)
, .slave_passthru_i2c0slv_ack(i2c0slv_ack)
, .slave_passthru_i2c0slv_err()
, .slave_passthru_i2c0slv_rty()
, .slave_passthru_i2c0slv_sel()
, .slave_passthru_i2c0slv_we(i2c0slv_we)
, .slave_passthru_i2c0slv_bte()
, .slave_passthru_i2c0slv_cti()
, .slave_passthru_i2c0slv_lock()
, .slave_passthru_i2c0intr_active_high(i2c0intr_active_high)
）；i2c_master_wb_top i2c_master_inst(.wb_clk_i(i2c0clk), .wb_rst_i(i2c0rst), .arst_i(n_reset_27_domain), .wb_adr_i(i2c0slv_adr[2:0]), .wb_dat_i(i2c0slv_master_data), .wb_dat_o(i2c0slv_slave_data),.wb_we_i(i2c0slv_we), .wb_stb_i(i2c0slv_strb), .wb_cyc_i(i2c0slv_cyc), .wb_ack_o(i2c0slv_ack), .wb_inta_o(i2c0intr_active_high),.scl(i2c_scl), .sda(i2c_sda)
);然后转回LMS中，这里我根据文档来写的一个函数，是可用来做i2c读写：
void WriteMasterI2c(MicoPassthruCtx_t *ctx, unsigned char address, unsigned char reg8H, unsigned char reg8L, unsigned char *data,unsigned char len){unsigned char ret = 0xff;char i;unsigned char add = address + 0x00;//7位地址+读写位凑8位(写)REG_WRITE(ctx->base, TXR, add);//设置TXR寄存器，写从设备地址REG_WRITE(ctx->base, CR, 0x90);//发送地址REG_READ(ctx->base, SR, ret);//读取SR状态寄存器//取SR[1]是否为1，为1则进行下去while((ret>>1)&0x1){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}ret = 0xff; //清零REG_WRITE(ctx->base, TXR, reg8H);//设置TXR寄存器，写从设备的寄存器REG_WRITE(ctx->base, CR, 0x10);//发送寄存器while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}ret = 0xff; //清零REG_WRITE(ctx->base, TXR, reg8L);//设置TXR寄存器，写从设备的寄存器REG_WRITE(ctx->base, CR, 0x10);//发送寄存器while((ret>>1)&0x1){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}for(i = 0 ; i < len-1 ; i++){ret = 0xff; //清零REG_WRITE(ctx->base, TXR, data[i]);//设置TXR寄存器，写从设备的数据REG_WRITE(ctx->base, CR, 0x10);//发送数据while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}}ret = 0xff; //清零REG_WRITE(ctx->base, TXR, (data[len-1]));//用数据的最后一个字节设置TXRREG_WRITE(ctx->base, CR, 0x50);//以使WRITE能够发送数据的最后一个字节，然后发出STOP命令while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}return ;
}void ReadMasterI2c(MicoPassthruCtx_t *ctx, unsigned char address, unsigned char reg8H, unsigned char reg8L, unsigned char *data, unsigned char len){unsigned char ret = 0xff;//char data[4];unsigned char i;unsigned char add = address + 0x00;//7位地址+读写位凑8位(写)REG_WRITE(ctx->base, TXR, add);//设置TXR寄存器，写从设备地址REG_WRITE(ctx->base, CR, 0x90);//发送地址//取SR[1]是否为1，为1则进行下去while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}ret = 0xff; //清零REG_WRITE(ctx->base, TXR, reg8H);//设置TXR寄存器，写从设备的寄存器REG_WRITE(ctx->base, CR, 0x10);//发送寄存器while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}ret = 0xff; //清零REG_WRITE(ctx->base, TXR, reg8L);//设置TXR寄存器，写从设备的寄存器REG_WRITE(ctx->base, CR, 0x10);//发送寄存器while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}ret = 0xff; //清零add = address + 0x01;//7位地址+读写位凑8位(读)REG_WRITE(ctx->base, TXR, add);//设置TXR寄存器，写从设备地址REG_WRITE(ctx->base, CR, 0x90);//发送地址while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}for(i = 0 ; i < len-1; i++){ret = 0xff; //清零REG_WRITE(ctx->base, CR, 0x20);//发出ACK命令。这样可以从从设备读取数据while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}REG_READ(ctx->base, RXR, data[i]);//读取接收寄存器的数据}ret = 0xff; //清零REG_WRITE(ctx->base, CR, 0x28);while(((ret>>1)&0x1)){REG_READ(ctx->base, SR, ret);//读取SR状态寄存器}REG_READ(ctx->base, RXR, data[len-1]);//这将读取数据的最后一个字节，然后发出NACKreturn ;
}不过这个仅仅是可以用的阶段，但想更好还需要各位大佬去优化，已经仿真过亲测可用。
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