QUARTUSII软件开放性实验报告

开放性实验报告

专业：电子信息工程

班级： *电信*班

姓名：

学号：

指导老师：

实验一：流水灯

一．实验内容

利用QUARTUSII软件，构建NIOSII软核系统，编写程序，实现实验箱上LED灯的流水功能。

二．实验原理

通过提前设定NIOSII软核处理器的相关寄存器，控制led 的IO 口的高低电平输出及响应间隔时间，从而改变LED的亮灭并达到流水灯效果。

三．实验步骤

1.硬件设计

(1).构建NIOSII软核

NIOSII软核处理器包括cpu,sdram控制器，串行flash控制器，jtag_uart,sysid,pio端口。

(2).PLL模块的构建

实验箱的板载有源晶振频率为50MHZ,NIOSII及SDRAM需要100MHZ 的时钟源，因此需要用PLL模块进行倍频。

PLL模块的配置如图所示：

输入时钟频率为50MHZ

输出时钟c0为输入时钟的2倍频

输出时钟c1为输入时钟的2倍频，相位偏移-75度，为SDRAM 提供工作时钟

PLL模块：

(3).系统连线及引脚分配

qsf文件中的引脚分配：

set_location_assignment PIN_AF21 -to sdram_addr[0] set_location_assignment PIN_AE20 -to sdram_addr[1] set_location_assignment PIN_AF20 -to sdram_addr[2] set_location_assignment PIN_AE19 -to sdram_addr[3] set_location_assignment PIN_B20 -to sdram_addr[4] set_location_assignment PIN_A21 -to sdram_addr[5] set_location_assignment PIN_B21 -to sdram_addr[6] set_location_assignment PIN_A22 -to sdram_addr[7] set_location_assignment PIN_B22 -to sdram_addr[8] set_location_assignment PIN_A23 -to sdram_addr[9] set_location_assignment PIN_AE21 -to sdram_addr[10] set_location_assignment PIN_B23 -to sdram_addr[11] set_location_assignment PIN_B24 -to sdram_addr[12] set_location_assignment PIN_AE22 -to sdram_ba[0]

set_location_assignment PIN_AF22 -to sdram_ba[1] set_location_assignment PIN_AE24 -to sdram_cas_n set_location_assignment PIN_B25 -to sdram_cke

set_location_assignment PIN_AF23 -to sdram_cs_n set_location_assignment PIN_AD25 -to sdram_dq[0] set_location_assignment PIN_AC25 -to sdram_dq[1] set_location_assignment PIN_AC26 -to sdram_dq[2] set_location_assignment PIN_AB25 -to sdram_dq[3] set_location_assignment PIN_AB26 -to sdram_dq[4] set_location_assignment PIN_AA25 -to sdram_dq[5] set_location_assignment PIN_AA26 -to sdram_dq[6] set_location_assignment PIN_Y25 -to sdram_dq[7] set_location_assignment PIN_W26 -to sdram_dq[8] set_location_assignment PIN_V25 -to sdram_dq[9] set_location_assignment PIN_V26 -to sdram_dq[10] set_location_assignment PIN_U25 -to sdram_dq[11] set_location_assignment PIN_U26 -to sdram_dq[12] set_location_assignment PIN_T25 -to sdram_dq[13] set_location_assignment PIN_R25 -to sdram_dq[14] set_location_assignment PIN_P24 -to sdram_dq[15] set_location_assignment PIN_N24 -to sdram_dq[16] set_location_assignment PIN_M25 -to sdram_dq[17] set_location_assignment PIN_L25 -to sdram_dq[18] set_location_assignment PIN_K26 -to sdram_dq[19] set_location_assignment PIN_K25 -to sdram_dq[20] set_location_assignment PIN_J26 -to sdram_dq[21] set_location_assignment PIN_J25 -to sdram_dq[22] set_location_assignment PIN_H26 -to sdram_dq[23] set_location_assignment PIN_G25 -to sdram_dq[24] set_location_assignment PIN_F26 -to sdram_dq[25] set_location_assignment PIN_F25 -to sdram_dq[26] set_location_assignment PIN_E26 -to sdram_dq[27] set_location_assignment PIN_E25 -to sdram_dq[28] set_location_assignment PIN_D26 -to sdram_dq[29] set_location_assignment PIN_D25 -to sdram_dq[30] set_location_assignment PIN_C25 -to sdram_dq[31] set_location_assignment PIN_Y26 -to sdram_dqm[0] set_location_assignment PIN_W25 -to sdram_dqm[1] set_location_assignment PIN_H25 -to sdram_dqm[2] set_location_assignment PIN_G26 -to sdram_dqm[3] set_location_assignment PIN_AE23 -to sdram_ras_n set_location_assignment PIN_AE25 -to sdram_we_n set_location_assignment PIN_F21 -to clk_sdram

2.软件设计