assignment in pin

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Floorplanning with pin assignment

Title	Floorplanning with pin assignment
Publication Type	Conference Paper
Year of Publication	1990
Authors	, ,
Conference Name	Computer-Aided Design, 1990. ICCAD-90. Digest of Technical Papers., 1990 IEEE International Conference on
Date Published	nov
Keywords	, , , , , , , , , , ,
Abstract	A hierarchical technique is presented for floorplanning and pin assignment of general cell layouts. Given a set of cells with their shape lists, a layout aspect ratio, relative positions of the external I/O pads and upper bound delay constraints for a set of critical nets, the authors determine shapes and positions of the cells, locations of the floating pins on cells and a global routing solution such that a linear combination of the layout area, the total interconnection length and constraint violations for critical nets is minimized. Floorplanning, pin assignment and global routing influence one another during the hierarchical steps of the algorithm. The pin assignment algorithm is flexible and allows various user specified constraints such as pre-specified pin locations, feedthrough pins, length-critical nets and planar net topologies. Placement, timing and floorplanning results for a Xerox general cell benchmark are reported
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How to assign different pins in Pin Planner in Quartus?

I am trying to make the 7 segment display of my FPGA work. I found some working code, but I got issues with the pin planner. The FPGA is this , a knockoff Altera Cyclone IV E EP4CE6E22C8. The code :

The code compiles and I can upload it, I just can't change the pins so that they can match the ones of my FPGA. I was thinking to use the dip switches as inputs. Some screenshots below.

To whoever takes sometime to help, thank you!

7segmentdisplay

\$\begingroup\$ As a start, look in the project's .qsf (Quartus Settings File). That will list the pin physical constraints including pin locations. You can edit and save that directly, following the format of the existing pin location constraints, which should be there from what you show. Then try synthesizing that and let us know. \$\endgroup\$ – TonyM Commented Aug 19, 2019 at 8:35
\$\begingroup\$ I am sorry, but i am kind of new to this, where can i locate the .qsf file? Also i think that i when started the project i chose the .osf file format, would that be a problem? \$\endgroup\$ – Rozakos Commented Aug 19, 2019 at 9:06
\$\begingroup\$ Enter your pins in the Pin Planner Location column. They will be assigned when you rebuild the project. \$\endgroup\$ – Leon Heller Commented Aug 19, 2019 at 9:34
\$\begingroup\$ That seems to have done the trick! Thank you very much! Ok one more question, is it possible to set the CLK on HIGH all the time? I guess i could assign it to the dip switch? \$\endgroup\$ – Rozakos Commented Aug 19, 2019 at 10:09
\$\begingroup\$ There are several ways of assigning pins - best is to insert them in the code but I've forgotten how to do that. Can't help with your CLK problem. \$\endgroup\$ – Leon Heller Commented Aug 19, 2019 at 10:20

Enter your pins in the Pin Planner Location column. They will be assigned when you rebuild the project.

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Floorplanning and Pin Assignment

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Floorplanning and Pin assignment are key steps in physical design cycle. The pin assignment is usually carried out after the blocks have been placed to reduce the complexity of the overall problem.

Several placement algorithms have been presented. Simulated annealing and simulated evolution are two most successful placement algorithm. Although these algorithms are computationally intensive, they do produce good placements. Integer programming based algorithms for floorplanning have been also been successful. Several algorithms have been presented for pin assignment, including optimal pin assignment for channel pin assignment problems. The output of the placement phase must be routable, otherwise placement has to be repeated.

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(2002). Floorplanning and Pin Assignment. In: Algorithms for VLSI Physical Design Automation. Springer, Boston, MA. https://doi.org/10.1007/0-306-47509-X_6

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DOI : https://doi.org/10.1007/0-306-47509-X_6

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pin assignments in code

I'm confused on pin assignments on the Nano.

There's the pins on the board itself and pins on the chip. The schematic shows board pin #'s that are the same, because there are two jacks.

There are examples of code that call out a pin by # and others that call it out by name.

myservo.attach(9) - is this pin 9 on the board (D6) or pin 9 on the chip (D5)? If I call out pin 9, how do I determine if it's the D6 pin or the A3 pin on the other header?

val=analogRead(A0) - does this indicate that the compiler knows that A0 is attached to the chip pin 23, and the board pin 12,

Would it be better to call out pins by name per the analog command, and let the compiler figure out what the pin# is or should I go by pin #'s on the chip, since there are duplicated pin #'s on the nano board itself?

This helped me. http://www.pighixxx.com/test/pinoutspg/boards/

Yes, it's almost always better to use the predefined constants, for portability between boards, as well as convenience. If you do that, all the mental machinations above will mostly disappear.

All references to the pin number in code are refer to the logical/arduino pin numbers. So 9 means the pin marked D9, physical pin 15 on the DIP version of the ATMega328p, physical pin 13 on the TQFP version.

The digital pin number, or the D# constant can be used interchangibly (they're just #defines - D9 is #defined to be 9, so the preprocessor searches for D9 and replaces them all with 9).

With analog pins, you use either the A# define, or you keep counting up from the last digital pin* (eg, on nano, last digital pin is 13; A0 is 14). For analogRead(), you can also use the number of the channel (eg, analogRead(0), analogRead(A0), and analogRead(14) do the same thing (though the last one will confuse a lot of the people who read it, so it's not good practice).

Physical pin numbers are never used when writing code, and frankly, almost never used when talking about the pins on microcontrollers period. As I noted above, for example, the physical pin numbers between the same chip in different packages are often different.

Sometimes pins are refered to like Pxn (where X is a letter and N is a number from 0~7, ex, arduino pin 9 is PB1) - these refer to the "port" and pin number within that port - this is relevant if doing direct port manipulation, or talking to people who don't use the Arduino IDE.

This is how it's done on all the official AVR-based cores (haven't looked at the SAM/ARM boards), and every third party AVR core I've seen, but an idiot could create a core where that convention wasn't followed.

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Pin assignments

This section describes the pin assignment and the pin functions of the nRF9161 .

The device provides flexibility when it comes to routing and configuration of the GPIO pins. However, for some pins there are recommendations on pin usage and configuration. See following table for more information about this.

LGA pin assignments

The pin assignment table and figure describe the assignments.

Table 1. LGA pin assignments
Pin no	Pin name	Function	Description
1	GND	Power	Ground
2	P0.05	Digital I/O (SoC)	General purpose I/O
3	P0.06	Digital I/O (SoC)	General purpose I/O
4	P0.07	Digital I/O (SoC)	General purpose I/O
5	GND	Power	Ground
6	GND	Power	Ground
7	GND	Power	Ground
8	GND	Power	Ground
9	GND	Power	Ground
10	RES		Do not connect/reserved for future use
11	GND	Power	Ground
12	VDD_GPIO	Power	GPIO power supply input and logic level
13	DEC0	Power	Power supply decoupling. Reserved for Nordic use.
14	GND	Power	Ground
15	P0.08	Digital I/O (SoC)	General purpose I/O
16	P0.09	Digital I/O (SoC)	General purpose I/O
17	GND	Power	Ground
18	P0.10	Digital I/O (SoC)	General purpose I/O
19	P0.11	Digital I/O (SoC)	General purpose I/O
20	P0.12	Digital I/O (SoC)	General purpose I/O
21	GND	Power	Ground
22	VDD2	Power	Supply voltage input
23	P0.13 AIN0	Digital I/O (SoC) Analog input	General purpose I/O Analog input
24	P0.14 AIN1	Digital I/O (SoC) Analog input	General purpose I/O Analog input
25	P0.15 AIN2	Digital I/O (SoC) Analog input	General purpose I/O Analog input
26	P0.16 AIN3	Digital I/O (SoC) Analog input	General purpose I/O Analog input
27	GND	Power	Ground
28	P0.17 AIN4	Digital I/O (SoC) Analog input	General purpose I/O Analog input
29	P0.18 AIN5	Digital I/O (SoC) Analog input	General purpose I/O Analog input
30	P0.19 AIN6	Digital I/O (SoC) Analog input	General purpose I/O Analog input
31	GND	Power	Ground
32	nRESET	Digital I/O (SoC)	SoC reset pin
33	SWDCLK	Digital input	Serial wire debug clock input for debug and programming
34	SWDIO	Digital I/O	Serial wire debug I/O for debug and programming
35	P0.20 AIN7	Digital I/O (SoC) Analog input	General purpose I/O Analog input
36	GND	Power	Ground
37	P0.21 TRACECLK	Digital I/O (SoC) Trace clock	General purpose I/O Trace buffer clock (optional)
38	P0.22 TRACEDATA[0]	Digital I/O (SoC) Trace data	General purpose I/O Trace buffer TRACEDATA[0] (optional)
39	P0.23 TRACEDATA[1]	Digital I/O (SoC) Trace data	General purpose I/O Trace buffer TRACEDATA[1] (optional)
40	P0.24 TRACEDATA[2]	Digital I/O (SoC) Trace data	General purpose I/O Trace buffer TRACEDATA[2] (optional)
41	GND	Power	Ground
42	P0.25 TRACEDATA[3]	Digital I/O (SoC) Trace data	General purpose I/O Trace buffer TRACEDATA[3] (optional)
43	SIM_RST	Digital I/O (SoC)	SIM reset
44	GND	Power	Ground
45	SIM_DET	Digital I/O (SoC)	SIM detect Not used. Must be left floating.
46	SIM_CLK	Digital I/O (SoC)	SIM clock
47	GND	Power	Ground
48	SIM_IO	Digital I/O (SoC)	SIM data
49	SIM_1V8	Power	SIM 1.8 V power supply output
50	GND	Power	Ground
51	RES		Do not connect/reserved for future use
52	GND	Power	Ground
53	MAGPIO2	Digital I/O (SoC)	1.8 V general purpose I/O
54	MAGPIO1	Digital I/O (SoC)	1.8 V general purpose I/O
55	MAGPIO0	Digital I/O (SoC)	1.8 V general purpose I/O
56	GND	Power	Ground
57	VIO	Power	MIPI RFFE control interface
58	SCLK	Digital I/O (SoC)	MIPI RFFE control interface
59	SDATA	Digital I/O (SoC)	MIPI RFFE control interface
60	GND	Power	Ground
61	ANT	RF	Single-ended 50 Ω LTE antenna pin
62	GND	Power	Ground
63	GND	Power	Ground
64	AUX	RF	Single-ended 50 Ω ANT loop-back pin
65	GND	Power	Ground
66	GND	Power	Ground
67	GPS	RF	Single-ended 50 Ω GPS input pin
68	GND	Power	Ground
69	GND	Power	Ground
70	RES		Do not connect/reserved for future use
71	RES		Do not connect/reserved for future use
72	GND	Power	Ground
73	RES		Do not connect/reserved for future use
74	GND	Power	Ground
75	GND	Power	Ground
76	GND	Power	Ground
77	GND	Power	Ground
78	GND	Power	Ground
79	GND	Power	Ground
80	GND	Power	Ground
81	GND	Power	Ground
82	GND	Power	Ground
83	P0.26	Digital I/O (SoC)	General purpose I/O
84	P0.27	Digital I/O (SoC)	General purpose I/O
85	GND	Power	Ground
86	P0.28	Digital I/O (SoC)	General purpose I/O
87	P0.29	Digital I/O (SoC)	General purpose I/O
88	P0.30	Digital I/O (SoC)	General purpose I/O
89	P0.31	Digital I/O (SoC)	General purpose I/O
90	GND	Power	Ground
91	COEX2	Digital I/O (SoC)	Coexistence interface
92	COEX1	Digital I/O (SoC)	Coexistence interface
93	COEX0	Digital I/O (SoC)	Coexistence interface
94	GND	Power	Ground
95	P0.00	Digital I/O (SoC)	General purpose I/O
96	P0.01	Digital I/O (SoC)	General purpose I/O
97	P0.02	Digital I/O (SoC)	General purpose I/O
98	GND	Power	Ground
99	P0.03	Digital I/O (SoC)	General purpose I/O
100	P0.04	Digital I/O (SoC)	General purpose I/O
101	ENABLE		Enable for the SiP internal regulator for the nRF91 SoC. The nRF91 will not start until this pin is enabled.
102	VDD1	Power	Supply voltage
103	GND	Power	Ground
104-127	RES		Do not connect/reserved for future use

COMMENTS

Making FPGA Pin Assignments
1. Use the Intel® Quartus® Prime Pin Planner to make pin assignments. 2. Use Intel® Quartus® Prime Fitter messages and reports for sign-off of pin assignments. 3. Verify that the Intel® Quartus® Prime pin assignments match those in the schematic and board layout tools. With the Intel® Quartus® Prime Pin Planner GUI, you can identify I/O ...
Lesson 5. Pin Assignment and Configuration
In this video, I talk more about pin assignment. This includes how pins have both logical and physical names. Then I go through the pin assignment tables in ...
2.6.1. Pin Assignment
Pin Assignment. 2.6.1. Pin Assignment. When you integrate your Interlaken IP instance in your design, you must make appropriate pin assignments. You do not need to specify pin assignments for simulation. However, you should make the pin assignments before you compile. Pin assignments provide direction to the Fitter and specify the signals that ...
2.3. Importing and Exporting I/O Pin Assignments
Importing and Exporting I/O Pin Assignments. 2.3. Importing and Exporting I/O Pin Assignments. The Intel® Quartus® Prime software supports transfer of I/O pin assignments across projects, or for analysis in third-party PCB tools. You can import or export I/O pin assignments in the following ways: Table 5.
Pin Assignment
Pin Assignment. In subject area: Computer Science. Pin assignment refers to the process of manually assigning specific pins on a Field-Programmable Gate Array (FPGA) to different signals or functionality. This is done by the design team to optimize the performance and functionality of the FPGA, as the tools used for FPGA placement and routing ...
PDF Pin Assignment for Multi-FPGA Systems
The pin assignment process for multi-FPGA systems assigns all signals to traces, and logic pins to IOBs. Specifically, each signal S , which is connected to partitions P1 …. Pn , must be assigned to exactly one trace T . This trace must be connected to chips C ={ C1 …. Cm } such that each partition P ∈{P1 ….
Solving FPGA I/O pin assignment challenges
Input/Output (I/O) pin assignment is one of the main challenges facing designers integrating large FPGA devices onto PCBs. Many designers find the process of defining the I/O pin configuration, or "pinout," of large FPGA devices and their advanced BGA packages an increasingly difficult task for a seemingly ever-expanding number of reasons.
Specify exact pin locations on FPGA
There are two ways of specifying PIN assignment — you can either use PinPlanner or set_location_assignment to specify the PIN along with set_instance_assignment to specify the IO standard. I recommend you read I/O Management documentation from Altera. But here are few examples: These are location assignments for 1 GbE RGMII Ethernet Interface:
Pin assignments
Pin assignments. This section describes the pin assignment and the pin functions. This device provides flexibility when it comes to routing and configuration of the GPIO pins. However, some pins have recommendations for how the pin should be configured or what it should be used for. See LGA pin assignments for more information about this.
Pin assignments
Pin assignments. This section describes the pin assignment and the pin functions. This device provides flexibility when it comes to routing and configuration of the GPIO pins. However, some pins have recommendations for how the pin should be configured or what it should be used for. In addition to the information in the pinout tables for the ...
Floorplanning with pin assignment
Floorplanning, pin assignment and global routing influence one another during the hierarchical steps of the algorithm. The pin assignment algorithm is flexible and allows various user specified constraints such as pre-specified pin locations, feedthrough pins, length-critical nets and planar net topologies. Placement, timing and floorplanning ...
PDF Pin Assignment Algorithms
The pin assignment algorithms are used to create assignments between all signal pins of the dies and all signal pins on the bottom side of the chip carrier. The signal nets considered are two-terminal nets. The created pin assignments are evaluated by means of fast quality estimation metrics.
2.3.2. Assigning Pin I/O Standards in the Intel® Quartus® Prime Pin
From the Intel® Quartus® Prime menu, select Assignments > Pin Planner. Under the Node Name column in the All Pins box, look for the pin that you want to configure. Under the Location column, select the specific pin location. The I/O Bank column displays the I/O bank name where the pin resides. The Top View - Flip Chip diagram shows the I/O ...
Pin assignments
QFN48 pin assignments. The pin assignment figure and table describe the assignments for this variant of the chip. Note: VDD and VDDH are shortcircuited inside the package. Therefore the device is only usable in Normal Voltage supply mode, and not High Voltage supply mode. Figure 2. QFN48 pin assignments, top view. Table 2. QFN48 pin assignments.
How to assign different pins in Pin Planner in Quartus?
That will list the pin physical constraints including pin locations. You can edit and save that directly, following the format of the existing pin location constraints, which should be there from what you show. Then try synthesizing that and let us know. \$\endgroup\$ -
Floorplanning and Pin Assignment
Floorplanning and Pin assignment are key steps in physical design cycle. The pin assignment is usually carried out after the blocks have been placed to reduce the complexity of the overall problem. Several placement algorithms have been presented. Simulated annealing...
how do I assign an FPGA pin number to a signal in Vivado?
Each one has a specific FPGA pin connected to it. I want to assign my external signals (in the entity port) to some of these switches and leds. If you are looking to specify pin locations to signals that exist in your design, it fairly simple using the I/O Planning layout in Vivado. 1- Open an elaborated, synthesized or implemented design. From ...
5.6.2.1.2. Defining Preset Pin Assignments in a Pin File
Defining Preset Pin Assignments in a Pin File. Alternatively, you can specify the pin assignments in a Pin Constraints File ( .tcl ), which can be more efficient for projects with many ports. You specify this .tcl file as the Pin Constraint File on the Pin Assignments tab, and then click Load Pin. The Pin Location and IO Standard update per the ...
Pin assignment
Pin assignment can be done independent of the implementation logic. When you are creating a new project, you can select "Io Pin Planning project" to do the pin assignments. This will be written to an XDC file which should be used during implementation. I am trying to change a previous project to work in a new board and add more function.
pin assignments in code
All references to the pin number in code are refer to the logical/arduino pin numbers. So 9 means the pin marked D9, physical pin 15 on the DIP version of the ATMega328p, physical pin 13 on the TQFP version. The digital pin number, or the D# constant can be used interchangibly (they're just #defines - D9 is #defined to be 9, so the preprocessor ...
3.2.1. Generating Pin Assignment Files
The Intel® Quartus® Prime-generated .pin contains the I/O pin name, number, location, direction, and I/O standard for all used and unused pins in the design. Click Assignments > Pin Planner to modify I/O pin assignments. You cannot import pin assignment changes from a Mentor Graphics* .pin into the Intel® Quartus® Prime software.. The .fx is an input or output of either the Intel® Quartus ...
Pin assignments
This section describes the pin assignment and the pin functions of the nRF9161. The device provides flexibility when it comes to routing and configuration of the GPIO pins. However, for some pins there are recommendations on pin usage and configuration. See following table for more information about this. Parent topic: Hardware and layout.
ピンアサイン（ピン配列 / ピン配置）とは
ピンアサイン（pin assignment）とは、ICチップやケーブルの接続端子に並んだ金属接点（ピン）のそれぞれに与えられた役割。また、各ピンの役割や仕様を並べた一覧表などのこと。
7.1.4. Pin Assignments
Pin Assignments. 7.1.4. Pin Assignments. Black-boxing logic can be the cause of some pin assignment errors. Use the following guidelines to resolve pin assignments. Reassign high-speed communication input pins to correct such errors. The FPGA checks for the status of high-speed pins and generates some errors if you do not connect these pins ...

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