4:修改sim_tb_top.v文件,把自己ddr读写的工程加入,替代原xilinx的example_top。即可仿真
5:原有例子仅仅可以仿真1024个内存空间,如果需要更多,需要修改如下地方:
parameter MEM_BITS = 23+5;// 15; // Set this parameter to control how many write data bursts can be stored in memory. The default is 2^10=1024.
6:原官方例子,在一段时间后会停止,是因为原例子仅仅是ddr init成功后读写几次后停止。如果需要仿真时间更多,需要修改这里。
7:ok。
关于仿真出现很多Warning,很简单,vlog -suppress 2083,这些烦人的Warning就没有了。
“# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(641): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(641): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(653): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(653): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(653): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(667): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(667): Carriage return (0x0D) is not followed by a newline (0x0A).
# ** Warning: (vlog-2083) ../ddr.srcs/sources_1/ip/mig_7series_0/mig_7series_0/user_design/rtl/mig_7series_0_mig_sim.v(667): Carriage return (0x0D) is not follow"
This standard was developed under the auspices of the Consumer Electronics Association (CEA) R4.8
DTV Interface Subcommittee.
CEA-861-D supersedes CEA-861-C.
CEA-861-D establishes protocols, requirements, and recommendations for the utilization of
uncompressed digital interfaces by consumer electronics devices such as digital televisions (DTVs),
digital
ca
ble, satellite or terrest
ria
l set-top boxes (STBs), and related peripheral devices including, but not
limited to DVD players/recorders, and other related source or sink devices.
CEA-861-D is appli
ca
ble to a variety of standard DTV-related high-speed digital physi
ca
l interfaces - such
as Digital Visual Interface (DVI) 1.0 [3], Open LVDS Display Interface (LDI) [7], and High-Definition
Multimedia Interface (HDMI) [29] specifi
ca
tions. Protocols, requirements, and recommendations that are
defined include video formats and waveforms; colorimetry and quantization; transport of compressed and
uncompressed, as well as Linear Pulse Code Modulation (LPCM), audio;
ca
r
ria
ge
of auxiliary data; and
implementations of the Video Electronics Standards Association (VESA) Enhanced Extended Display
Identifi
ca
tion Data Standard (E-EDID) [9], which is used by sink devices to declare display
ca
pabilities
and characteristics.
CEA-861-D adopters are strongly encoura
ge
d to implement High-bandwidth Digital Content Protection
(HDCP) [2] content protection defined by the Digital Content Protection (DCP), LLC) method, in order to
be compatible with digital
ca
ble STBs as authorized by 47 C.F.R. § 76.602 [27] and 47 C.F.R. §76.640
[28]. HDCP [29] permits viewing of high-value content that may be available from other video sources in a
home network.
A low poly asset pack of characters, props, weapons and environment assets to create a Western themed polygonal style game.
Modular sections are easy to piece to
ge
ther in a variety of combinations.
Includes a demo scene
305 unique assets with x4 alternative texture colors.
Assets include:
- Church, Cover, Deck Steps, Door, Double Buildings, Double_Balcony, Double Balcony Stairs, Double Building Deck Cover, Double Building Deck, Double Building Fa
ca
de, Double Building Front, Double Building Roof, FencePost, Fence, Jail, Lar
ge
Building, Outhouse, Saloon, Shed, Sign, Single Building, Single Balcony, Single Deck Cover, Single Deck, Single Fa
ca
de, Single Building Front, Single Roof, Stairs, Tower Clock, Tower, Train Station, Train Station Platform, Water, Tower, Well, Windmill, Bone Pile, Butte, Butte,
Ca
ctus,
Ca
mpFire, Cliff Arch, Cliff
Ca
p, Cliff Curve, Cliff Pillar, Cliff Straight, Cloud, Dust Pile, Grass, Grave, Rocks, Sand Ground, Train Track Brid
ge
Support, Train Track Brid
ge
Top, Train Track Brid
ge
Top Curve, Train Track Curve, Train Track Straight, Tree Dead, BarberPost, Barrels, Barrels Broken, Barrel Half, Beds, Bench, Bone Cracked, Bottles, Bottle Broken, Bottle
Ca
ndles, Building Smoke stack, Bush,
Ca
ndle,
Ca
rds,
Ca
rd Pile,
Ca
rt Wheel,
Ca
sh Register, Chair, Church Cross, Church Door, Church Pew, Church Podium, Coffin, Cow Skull, Crate, Cups, Curtains, Curtain Rail, Deck Rails, Desk, Dresser, Entrance, Fireplace, Fireplace Smoke Stack, Fur Roll, Gallows, GoldBar, Hay Bale, Hitching Post, JailBed, Ladder, Lantern, Lantern Lit, Loghalf, Maps, Messa
ge
Board, Milk Container, Moose Head, Piano, Piano Seat, Poker Table, Poker Chip, Pot, Road Sign, Rope, Rope Hanging, Sacks, Saddle, Saloon Swinging Doors, Shelf, Sticks, Stick Bundle, Stool, Stool Round, Suit
ca
ses, Tables, Table Ve
ge
tables, Tumbleweeds, Vault, Ve
ge
tables Boxes, Water Trough, Wood Piles.
6 Vehicle parts including train set
- Sta
ge
coach, Train, Train
Ca
r
ria
ge
, Train Coal, Train Freight,
Ca
rt.
如果您的残障使您无法在校园内走来走去,那么到处走走会很困难。 这是一个Android和iOS应用程序,可帮助骑手安排和跟踪校园内的骑行活动。
可在找到Driver App分支。 可以在找到分派器和后端代码分支。
目前的贡献者
Bryan Graeser-产品经理
Nina Xie-产品经理
Christopher Hansen-技术产品经理
Jessie Wong-软件
开发
人员
Tony Yang-软件
开发
人员
张敏(Megan Chang)-设计师
Aiden Kim-设计师
过去的贡献者
Sam Steinberg-产品经理
Laura Sizemore-技术产品经理
Christopher Hansen-软件
开发
人员
郑以苏-设计师
【回车和换行的历史】
在计算机还没有出现之前,有一种叫做电传打字机(Teletype Model 33)的玩意,每秒钟可以打10个字符。但是它有一个问题,就是打完一行,需要回车换行,此过程,要用去0.2秒,正好可以打两个字符。要是在这0.2秒里面,又有新的字符传过来,那么这个字符将丢失。
于是,研制人员想了个办法解决这个问题,就是在每行后面加两个表示结束的字符。一个叫做“回车”,告诉打
1、【回车和换行的历史】在计算机还没有出现之前,有一种叫做电传打字机(Teletype Model 33)的玩意,每秒钟可以打10个字符。但是它有一个问题,就是打完一行,需要回车换行,此过程,要用去0.2秒,正好可以打两个字符。要是在这0.2秒里面,又有新的字符传过来,那么这个字符将丢失。于是,研制人员想了个办法解决这个问题,就是在每行后面加两个表示结束的字符。一个叫做“回车”,告诉打字机把打印头...
在计算机还没有出现之前,有一种叫做电传打字机(Teletype
Model 33)的玩意,每秒钟可以打10个字符。但是它有一个问题,就是打完一行,需要回车换行,此过程,要用去0.2秒,正好可以打两个字符。要是在这0.2秒里面,又有新的字符传过来,那么这个字符将丢失。
于是,研制人员想了个办法解决这个问题,就是在每行后面加两个表示结束的字符。一个叫做“回车”,告
在计算机还没有出现之前,有一种叫做电传打字机(Teletype Model 33)的玩意,每秒钟可以打10个字符。但是它有一个问题,就是打完一行换行的时候,要用去0.2秒,正好可以打两个字符。要是在这0.2秒里面,又有新的字符传过来,那么这个字符将丢失。于是,研制人员想了个办法解决这个问题,就是在每行后面加两个表示结束的字符。一个叫做“回车”,告诉打字机把打印头定位在左边界;另一个叫做“换行”,告
在Windows中:'\r' 回车,回到当前行的行首,而不会换到下一行;'\n' 换行,换到当前位置的下一行,而不会回到行首;"回车”(
Ca
r
ria
ge
Return
)和“换行”(Line Feed)这两个概念的来历和区别。 在计算机还没有出现之前,有一种叫做电传打字机(Teletype Model 33,Linux/Unix下的tty概念也来自于此)的玩意,每秒钟可以打10个字符。但是它有一...