MCU软核 1. Altera FPGA上运行8051
0. 环境
- Quartus 13
- EP4CE6E22开发板
- keil c51
- ag10kl144h（本工程兼容AGM）
下载8051源码：https://www.oreganosystems.at/products/ip-cores/8051-ip-core
1. Create Project
File --> New Project Wizard
位置：E:\Workspaces\Quartus\EP4CE6_Core\mc8051_hello
名字：mc8051_hello
next - next
选择芯片
EP4CE6E22C6
Simulation None None
2. 添加源码
2.1 顶层文件
mc8051顶层文件样例请参考 mc8051_hello.v
module mc8051_hello(
input Clk50M, //板级时钟源，50M
input Rst_n, //复位端口
input int0_i, //mc8051外部中断0输入
input int1_i, //mc8051外部中断1输入
input all_t0_i, //mc8051计数器0输入
input all_t1_i, //mc8051计数器1输入
input [7:0]p0_i, //mc8051端口0输入
input [7:0]p1_i, //mc8051端口1输入
input [7:0]p2_i, //mc8051端口2输入
input [7:0]p3_i, //mc8051端口3输入
output [7:0]p0_o, //mc8051端口0输出
output [7:0]p1_o, //mc8051端口1输出
output [7:0]p2_o, //mc8051端口2输出
output [7:0]p3_o, //mc8051端口3输出
input all_rxd_i, //mc8051串口接收端口
output all_rxd_o, //mc8051串口方式0时输出端口
output all_txd_o, //mc8051串口发送端口
output all_rxdwr_o //rxd 输入/输出方向控制信号（高电平输出）
);
wire Clk18M;
//例化PLL模块
pll pll(
.inclk0(Clk50M),
.c0(Clk18M)
);
//例化mc8051核
mc8051_top mc8051_top_inst(
.clk(Clk18M),
//.reset(~Rst_n), //mc8051为高电平复位，因此将复位按键状态取反接到reset上
.reset(0),
.int0_i(int0_i),
.int1_i(int1_i),
.all_t0_i(all_t0_i),
.all_t1_i(all_t1_i),
.p0_i(p0_i),
.p1_i(p1_i),
.p2_i(p2_i),
.p3_i(p3_i),
.p0_o(p0_o),
.p1_o(p1_o),
.p2_o(p2_o),
.p3_o(p3_o),
.all_rxd_i(all_rxd_i),
.all_rxd_o(all_rxd_o),
.all_txd_o(all_txd_o),
.all_rxdwr_o(all_rxdwr_o)
);
endmodule
2.2 ROM
创建一个ROM模块所需使用的初始化文件
File -> New -> Memory Files -> Hexadecimal (Intel-Format)File
-> Number of words: 4096
-> Word size: 8
File -> save as ... -> E:/Workspaces/Quartus/EP4CE6_Core/mc8051_hello/rtl/mc8051_hello.hex
2.3 生成ROM模块
注意这部分的hex文件需要完成keil部分章节才会生成。
Tools -> MegaWizard Plug-In Manager… -> Create a new custom megafunction variation -> Next ->ROM: 1-PORT -> 语言选择VHDL
-> 地址：E:/Workspaces/Quartus/EP4CE6_Core/mc8051_hello/rtl/altera_ip/mc8051_rom -> Next
-> how wide: 8 bits -> how many: 4096
-> 取消勾选 'q' output port
-> file name: E:/Workspaces/Quartus/EP4CE6_Core/mc8051_hello/keil/mc8051_hello/Objects/mc8051_hello.hex
-> 勾选Allow In-System Memory Content Editor to capture and update content independently of the system clock
-> The Instance ID of this ROM is: ROM0
-> 勾选 mc8051_rom.cmp 和 mc8051_rom_inst.vhd
2.4 生成RAM模块
Tools -> MegaWizard Plug-In Manager… -> Create a new custom megafunction variation -> Next ->RAM: 1-PORT -> 语言选择VHDL
-> 地址：E:/Workspaces/Quartus/EP4CE6_Core/mc8051_hello/rtl/altera_ip/mc8051_ram -> Next
-> how wide: 8 bits -> how many: 128
-> 取消勾选 'q' output port
-> 勾选 Create one clock enable signal for each clock signal.（clken）
-> 勾选 mc8051_ram.cmp 和 mc8051_ram_inst.vhd
Tools -> MegaWizard Plug-In Manager… -> Create a new custom megafunction variation -> Next ->RAM: 1-PORT -> 语言选择VHDL
-> 地址：E:/Workspaces/Quartus/EP4CE6_Core/mc8051_hello/rtl/altera_ip/mc8051_ramx -> Next
-> how wide: 8 bits -> how many: 2048
-> 取消勾选 'q' output port
-> 勾选 mc8051_ramx.cmp 和 mc8051_ramx_inst.vhd
2.5 mc8051_core
把
mc8051_design_v1.6\Version1_6\vhdl
拷贝到
E:\Workspaces\Quartus\EP4CE6_Core\mc8051_hello\rtl\mc8051core打开 mc8051_p.vhd 文件
把
--------------------------------------------------------------------
-- START: Component declarations for simulation models
--------------------------------------------------------------------
component mc8051_ram
port (
clk : in std_logic;
reset : in std_logic;
ram_data_i : in std_logic_vector(7 downto 0);
ram_data_o : out std_logic_vector(7 downto 0);
ram_adr_i : in std_logic_vector(6 downto 0);
ram_wr_i : in std_logic;
ram_en_i : in std_logic);
end component;
component mc8051_ramx
port (
clk : in std_logic;
reset : in std_logic;
ram_data_i : in std_logic_vector(7 downto 0);
ram_data_o : out std_logic_vector(7 downto 0);
ram_adr_i : in std_logic_vector(15 downto 0);
ram_wr_i : in std_logic);
end component;
component mc8051_rom
port (
clk : in std_logic;
reset : in std_logic;
rom_data_o : out std_logic_vector(7 downto 0);
rom_adr_i : in std_logic_vector(15 downto 0));
end component;
--------------------------------------------------------------------
-- END: Component declarations for simulation models
--------------------------------------------------------------------
替换为
--------------------------------------------------------------------
-- START: Component declarations for simulation models
--------------------------------------------------------------------
component mc8051_ram
port (
clock : in std_logic;
data : in std_logic_vector(7 downto 0);
q : out std_logic_vector(7 downto 0);
address : in std_logic_vector(6 downto 0);
wren : in std_logic;
clken : in std_logic);
end component;
component mc8051_ramx
port (
clock : in std_logic;
data : in std_logic_vector(7 downto 0);
q : out std_logic_vector(7 downto 0);
address : in std_logic_vector(10 downto 0);
wren : in std_logic);
end component;
component mc8051_rom
port (
clock : in std_logic;
q : out std_logic_vector(7 downto 0);
address : in std_logic_vector(11 downto 0));
end component;
--------------------------------------------------------------------
-- END: Component declarations for simulation models
--------------------------------------------------------------------
打开 mc8051_top_struc.vhd 文件
添加
signal s_rom_adr_sml: std_logic_vector(11 downto 0); -- new
signal s_ramx_adr_sml: std_logic_vector(10 downto 0); -- new
添加
s_rom_adr_sml <= std_logic_vector(s_rom_adr(11 downto 0)); -- *** new
s_ramx_adr_sml <= std_logic_vector(s_ramx_adr(10 downto 0)); -- *** new 
再修改
--------------------------------------------------------------------
-- Hook up the general purpose 128x8 synchronous on-chip RAM.
i_mc8051_ram : mc8051_ram
port map (
clock => clk,
data => s_ram_data_in,
q => s_ram_data_out,
address => s_ram_adr,
wren => s_ram_wr,
clken => s_ram_en);
-- THIS RAM IS A MUST HAVE!!
--------------------------------------------------------------------
--------------------------------------------------------------------
-- Hook up the (up to) 64kx8 synchronous on-chip ROM.
i_mc8051_rom : mc8051_rom
port map (
clock => clk,
q => s_rom_data,
address => s_rom_adr_sml);
-- THE ROM OF COURSE IS A MUST HAVE, ALTHOUGH THE SIZE CAN BE SMALLER!!
--------------------------------------------------------------------
--------------------------------------------------------------------
-- Hook up the (up to) 64kx8 synchronous RAM.
i_mc8051_ramx : mc8051_ramx
port map (
clock => clk,
data => s_ramx_data_out,
q => s_ramx_data_in,
address => s_ramx_adr_sml,
wren => s_ramx_wr);
-- THIS RAM (IF USED) CAN BE ON OR OFF CHIP, THE SIZE IS ARBITRARY.
--------------------------------------------------------------------
添加mc8051 Core相关文件到Quartus II工程中
对部分文件的文件名进行更改。原版的VHDL源码，部分文件的文件名末尾加了有“_”，而实际源码中的模块名没有加“_”，因此，如果将这些文件直接添加到Quartus II工程中，编译就会报错。
名字带CFG的文件不需要添加。
2.6 pll
Tools -> MegaWizard Plug-In Manager… -> Create a new custom megafunction variation -> Next ->ALTPLL -> 语言选择verilog hdl
-> 地址：E:/Workspaces/Quartus/EP4CE6_Core/mc8051_hello/rtl/altera_ip/pll -> Next
-> inclk0: 50MHz
-> 取消勾选Create an 'areset' input to asynchronously reset the PLL
-> 取消勾选Create 'locked' output
-> c0 output clock frequency: 18MHz
2.7 设置工程顶层文件
在Files栏中，选中mc8051_top.vhd文件，点击右键，选择“Set as Top-Level Entity”，即可将mc8051_top.vhd设置为工程的顶层文件，（这里设置为顶层主要是为了封装IP核方便，临时性的，并不是最终作为工程顶层）。如图 2.23 所示：
3. 编译
4. 配置引脚
打开 mc8051_hello.qsf
添加
set_location_assignment PIN_23 -to Clk50M
set_location_assignment PIN_88 -to Rst_n # 掌中宝1A 复位按钮
set_location_assignment PIN_87 -to p1_o[1] # 掌中宝1A led2
set_location_assignment PIN_98 -to p1_o[0] # 掌中宝1A led1
# set_location_assignment PIN_42 -to p1_o[0] # zhybcjbk_v011 led1
# set_location_assignment PIN_129 -to p1_o[1] # zhybcjbk_v011 led2编辑完后再次编译工程。
5. keil
创建工程
Project -> New uVision Project -> E:\Workspaces\Quartus\EP4CE6_Core\mc8051_hello\keil\mc8051_hello
-> at89c51
添加源码
E:\Workspaces\Quartus\EP4CE6_Core\mc8051_hello\keil\mc8051_hello\src\main.c
设置生成Hex
右键Target 1 -> Options for Target 'Target 1' -> Output -> 勾选Create HEX File
6. 验证与下载
重新编译再下载 sof
在Quartus中点击
Assignments—— Device——Device and Pin Options——Unused Pins
As input tri-stated
Assignments—— Device——Device and Pin Options——Dual-Purpose Pins
全部选择Use as regual I/O
Assignments—— Device——Device and Pin Options——Voltage
3.3-V LVTTL
6.1 FPGA程序
Open programmer -->
add file --> output_files/add_sub_ip_test.sof
Hardware Setup: USB-Blaster
Mode: JTAG
6.2 FPGA程序-固化
File -> Convert Programming Files
-> Programming file type -> JTAG Indirect Configuration File(.jic)
-> Configuration device -> EPCS16
-> File name -> output_files/mc8051_hello.jic
-> Flash Loader -> Add Device -> EP4CE6
-> SOF Data -> Add File -> mc8051_hello.sof
-> Generate
打开Programmer，选择jlc文件，mc8051_hello.sof
勾选 output_files/mc8051_hello.sof 一行的Program/Configure
6.3 ROM
Tools -> In-System Memory Content Editor -> Hardware Setup: USB-Blaster
ROM0 -> 右键ROM0 -> Import Data From File -> E:\Workspaces\Quartus\EP4CE6_Core\mc8051_hello\keil\mc8051_hello\Objects\mc8051_hello.hex
-> Write Data to In-System Memory
但是这个ROM是在8051的IP核的，不是外部硬件ROM，因此掉电就要重新下载了。
7. Supre
这部分将EP4CE6工程转换为AGM工程。
D:\Supra-2023.02.b0-7773ca8a-win64-all\bin\Supra.exe
创建工程
Project -> New Project ->
project directory: E:\Workspaces\Supra\zhybcjbk\mc8051_hello
project name: mc8051_hello
工程migrate
Tools -> Migrate
select migrate from directory: E:\Workspaces\Quartus\EP4CE6_Core\mc8051_hello
input design name: mc8051_hello
Select device: AG10KL144H
按Next转换
quartus
打开 E:\Workspaces\Supra\zhybcjbk\mc8051_hello\mc8051_hello.qpf
Tools -> TCL Scripts
选择 af_quartus.td，点击Run
Supre编译工程
回到Supre界面，点击 Next -> Finish -> 稍后会弹出窗口提示Compile deisgn watch done.
文件说明
参考：1. mc8051源码下载，https://www.oreganosystems.at/products/ip-cores/8051-ip-core
2. FPGA配置MC8051IP软核，https://blog.csdn.net/QuanSirX/article/details/105143773
3. 【小梅哥FPGA进阶教程】MC8051软核在FPGA上的使用，https://www.cnblogs.com/xiaomeige/p/6403094.html