In computing, CAN interface may be a shared boundary across the two separate parts of a system conversation information. The conversation can be done between computer hardware, software, humans, peripheral devices and combinations of these. Some hardware devices of a computer like a touchscreen because; a touch screen can share and receive information through the interface, whereas other devices like a microphone, mouse are only one way. Interfaces are mainly in two types such as hardware interfacing and software interfacing. Hardware interfaces are used in many of the devices like input, output devices, buses and storage devices. This CAN interface can be defined by the logic signals. A software interface can be available in a wide range at different levels. An OS may interface with different parts of the hardware. The programs or applications on the OS may need to communicate through streams and in object oriented programming, objects in any application need to communicate through methods.
CAN BUS
The CAN bus was developed in the year 1983 at Robert Bosch GmbH. This protocol was released in the year 1986 at the SAE Congress (Society of Automobile Engineers) in Detroit, Michigan. The first CAN protocol was produced by Philips and Intel and released on the market in the year 1987. But the BMW series-8 was the first vehicle to feature a CAN protocol based multiplex wiring system.
The full form of the CAN is a controller area network. It is a one kind of vehicle bus mainly designed to allow various devices and microcontrollers to interact with each other without a host computer. This protocol is based on a message and mainly designed for electrical wiring in automobiles. Bosch published various versions of the CAN and in the year 1991 the latest CAN 2.0 was published.
CAN consists of two parts mainly such as part A and Part B where, Part A is an 11-bit identifier and it is in the standard format. Part B is a 29 bit identifier, and it is in the extended format. A CAN which uses 11-bit identifiers are called AN 2.0A and a CAN which uses 29-bit identifiers it is called CAN 2.0B
Interfacing of CAN to USB
The Cheetah adapter is a High-Speed USB 2.0 device. It can be plugged into either a high-speed or full-speed port. However, a high-speed port must be used to achieve full throughput at high data rates (SPI clock rates 3 Mbps). SPI flash is very common, and by using a test clip, SPIDriver makes it convenient to read and write SPI flash in-circuit. Just attach the clip and you can backup and restore flash contents directly. Atmel microcontrollers - like the Arduino - in-circuit programming use standard SPI pins, so a short script is all it takes to read or write an.
Interfacing of CAN to USB is a simple device, used to monitor the CAN bus. This device uses the NUC140LC1CN 32 K Cortexes-M0 microprocessor. It has both CAN and USB peripherals.
The main features of interfacing CAN to USB are
- It is very simple to design
- Well-matched with the protocol LAWICEL CANUSB
- Exposing itself as a device like FTDI USB
- It supports CAN 2.0B 29-bit and CAN 2.0A 11-bit frames
- It consists of an internal message buffer (FIFO CAN)
- It powers from USB port
- For firmware updates a mass storage device (Flash-resident USB) is used
Schematic Diagram
The circuit configuration of the Interfacing of CAN to USB is shown below. A CAN transformer is used to enable the NUC140 CAN device to interact with the CAN bus. The chip TJA1051T solves the purpose from NXP. The microprocessor NUC140 is capable of working with a 5V power supply; there is no necessity of an extra 3.3V voltage regulator. This convenient arrangement makes a simple task implementing CAN to USB interface.
The circuit is built with three status LEDs namely D1, D2 and D3. Crate amplifier serial numbers.
- Here the status of the D1 diode says that USB connected to the host
- Here the status of the D2 diode says that activity of CAN bus
- The errors of the CAN bus can be indicated by D3 diode
The NUC140 microprocessor doesn't have an integrated boot loader and the best way to program is only used Nuvoton ICP programmer and ARM SWD (Serial Wire Debug) interface. If the boot loader is previously dumped with a program it could be triggered. Connecting the JP1 before powering the interface will trigger the boot loader. Yamaha ypg 235 midi drivers for mac.
Boot Loader
The flash memory of the NUC140LC1 microprocessor is separated into two sections. They are executing user program code and boot loader. The size of boot loader and executing user program is 4K and 32K. Here the mass storage device(MSD) boot loader from Nuvoton is used to build a fully functional USB boot loader. The boot loader will activate by connecting a JP1 jumper. So finally, a removable drive must be visible in the host file system with a 32KB size. Just copy and paste the update of CAN to USB firmware to the boot loader drive. Disconnect the USB cable, disconnect the jumper and plug it in again. The update of new firmware should now be running.
CAN to USB Interface Programming and NuTiny-SDK-140
Programming of microprocessor NUC140 needs Nuvoton ICP programming application and Nuvoton's Nu-Link programmer. But here the NuTiny-SDK-140 (NUC140 demo board) is available from Digi-Key. It consists of two parts such as Nu-Link programmers and the part with NUC140 chip. This board is even perforated to separate the part of the Nu-Link. Actually, you can design this device exclusively around the NUC140 demo board, the only an extra CAN transceiver chip will be essential.
Thus, this is all about CAN interface with USB includes, CAN bus, interfacing CAN to USB, schematic diagram, boot loader and NUC140 microprocessor. We hope that you have got a better understanding of this concept. Furthermore, any queries regarding this article please give your valuable suggestions by commenting in the comment section below. Here is a question for you, what are the applications of of CAN interface?
Photo Credits:
- CAN to USB Interface saelig
- CAN BUS canbuskit
- NUC140 instructables
Key Features
- USB-I2C interface with configurable frequency from 1kHz to 1MHz, wide supply voltage range (2.3V to 5V), multimaster and clock stretching support;
- USB-SPI interface with configurable frequency (up to 4MHz), phase and polarity;
- 32 digital I/O pins with embedded pull-up resistors;
- 8 10-bit analog inputs (ADC);
- 2 PWM outputs;
- 2 32-bit pulse & frequency counters;
- event-driven interface for digital inputs, analog inputs and pulse counters
- 1 status LED and 2 user-configurable LED's;
- no hidden fees: API, updates, software and technical support are free;
- USB 2.0 full-speed (12 MHz) connection to personal computer;
- backward compatible with our well known U2C-12 USB-I2C/SPI/GPIO Interface Adapter;
- RoHS Compliant
General Description
DLN-2 USB-I2C/SPI/GPIO/PWM/ADC adapter is an ideal solution for interfacing your hardware from Windows, Linux or Mac OS X based computer.
The DLN-2 adapter allows you to send and receive data to/from I2C and SPI slave devices at high frequencies, control your hardware using PDM interface and digital outputs and monitor it with digital and analog inputs and pulse counters.
There are a lot of open source examples and ready to use programs that you can download for free from dlnware.com web site. There you can also find comprehensive documentation and examples that show how to interface the DLN-2 adapter from different programming languages.
The DLN-2 interface is available in two modifications:
- the assembled PCB board that you can connect to your hardware with the Diolan accessories;
- the preprogrammed microcontroller (system-on-chip) that you can embed into your hardware.
Event-Driven Interface
Captain sim keygen. Winrar v5 01. One of the most exciting features of DLN-2 USB-I2C/SPI/GPIO/PDW/ADC adapter is an event-driven interface.
You can configure the DLN-2 adapter to notify your application when a specific event occurs. Let's see that on example. Here is an example.
Let us assume that your application controls a voltage level at some circuit. If the voltage level exceeds 1.6V, it notifies a user about that.
The competitive adapters leave you with the only option to continuously poll the analog input for current value, unreasonably wasting computer resources and USB bandwidth.
The ADC module of the DLN-2 adapter can notify your application when the voltage level exceeds a preconfigured threshold. Your application can set the upper threshold value to 1.6V and continue its regular operation. When the predefined condition occurs, your application will receive an event and notify a user.
The event-driven interface is available for digital inputs, analog inputs and pulse counters.
U2C-12 USB-I2C/SPI/GPIO interface adapter compatibility
Before we developed the DLN-series adapters, we had a U2C-12 USB-I2C adapter that was used by thousands of our customers. After U2C-12 adapter was discontinued, we replaced it with the DLN-2 adapter, which has exactly the same form factor.
The DLN-2 adapter has more extended functionality in comparison with U2C-12 adapter. It supports additional interfaces and higher frequencies. These improvements required from us to change API.
Some of our customers didn't want to adapt their software to our new API. We put our customers at the center of all we do and we have developed the firmware for DLN-2 USB-I2C adapter that is fully compatible with the previous U2C-12 API. These adapters are available for purchase under part number DLN-2-U2C. For additional details refer to the U2C-12 compatibility article.
USB-I2C Interface
The I2C bus frequency of the DLN-2 USB-I2C adapter can be configured in the range between 1kHz and 1MHz. This allows you to connect I2C slave devices that operate in Standard (100 kHz), Fast (400 kHz) and Fast Plus (up to 1 MHz) I2C bus frequency modes.
The DLN-2 interface adapter has two sets of I2C pull-up resistors: 240 Ohm and 1.5 K. You can select which set of pull-up resistors to use with the on-board jumpers. If an external I2C circuit is already equipped with pull-up resistors, you can disable the pull-up resistors that are located on the DLN-2 adapter.
You can connect these pull-up resistors either to the DLN-2 power supply, or to the external power supply. In case you use the DLN-2 power supply, you can select between two options - 3.3V or 5V. The external power supply can vary in the range between 2.3V and 5V.
The DLN-2 USB-I2C interface supports multimaster environment. It can detect if the I2C bus is occupied by another I2C master device.
If your I2C slave device is not able to co-operate with the clock speed given by U2C-12 adapter, it can slow down the communication with clock synchronization (clock-stretching).
DLN-2 supports only I2C master interface. If you need to use I2C slave interface as well, consider switching to DLN-4S adapter.
| Symbol | Parameter | Condition | Min | Max |
| Freq | I2C Bus Frequency | configurable | 1 kHz | 1 MHz |
| PullUp | Pull-Up Resistors | configurable with solder bridges | 240 Ohm | 1.5K |
| VIH | Input High Voltage | 2.31V | 5.5V | |
| VIL | Input Low Voltage | -0.3V | 0.99V | |
| VOHi | Output High Voltage | Internal VCC | 2.9V | |
| VOHe | Output High Voltage | External VCC | (VCC-0.4)V | |
| VOL | Output Low Voltage | 0.4V |
USB-SPI Interface
The SPI bus frequency can be configured in the range between 2kHz and 10 MHz. Slotomania bonus collector facebook. If you need a faster SPI interface, consider using DLN-4M adapter.
In addition to SPI bus frequency you can also configure the clock polarity (CPOL) and phase (CPHA). DLN-2 USB-SPI Interface supports all 4 SPI bus modes.
DLN-2 adapter operates on 3.3V. However, its SPI interface pins are 5V-tolerant. This allows using DLN-2 adapter with 5V SPI circuits.
DLN-2 adapter can perform half-duplex (read or write) and full-duplex (simultaneous read/write) data transactions.
DLN-2 supports only SPI master interface. If you need SPI slave interface, consider using DLN-4S adapter.
| Symbol | Parameter | Condition | Min | Max |
| Freq | SPI Bus Frequency | configurable | 2 kHz | 10 MHz |
| SS | Slave Select Pin | 0 | 5 | |
| VIH | Input High Voltage | 2.31V | 5.5V | |
| VIL | Input Low Voltage | -0.5V | 0.99V | |
| VOH | Output High Voltage | IOUT= 4.0mA | 2.9V | |
| VOL | Output Low Voltage | IOUT= -4.0mA | 0.4V |
USB-GPIO (General Purpose Input / Output) Interface
The DLN-2 adapter has 32 GPIO pins Minecraft pe 2. which can be configured as digital inputs or outputs.
Every GPIO pin is equipped with an embedded pull-up resistor. These pull-up resistors are turned on by default to ensure that DLN-2 input pins get the predefined value when no external device is connected.
The DLN-2 adapter stands out against competitive products by its support of event driven interface. With other adapters you would need to continuously poll the GPIO pin for changes, wasting the resources of your PC and USB bandwidth. You can preconfigure the DLN-2 adapter to notify your application (send events) when the input value on the specified GPIO pin is changed.
| Symbol | Parameter | Condition | Min | Max |
| VIH | Input High Voltage | 2.31V | 5.5V | |
| VIL | Input Low Voltage | -0.5V | 0.99V | |
| VOH | Output High Voltage | IOUT= 4.0mA | 2.9V | |
| VOL | Output Low Voltage | IOUT= -4.0mA | 0.4V | |
| IL | Input Leakage Current I/O Pin | 0.001mA | ||
| IDC | DC Current per I/O Pin | 3.0V | 8mA |
Absolute Maximum Ratings
| Parameter | Min | Max |
| Storage Temperature | -66°C | +150°C |
| Ambient Temperature Under Bias | -40°C | +85°C |
| DC Input Voltage to Any Pin | -0.5V | +5.5V |
| DC Input Voltage to Pins in ADC mode | 0V | +3.6V |
Operating Conditions
| Parameter | Min | Max |
| Ta (Ambient Temperature Under Bias) | 0°C | +70°C |
| DC Current VCC and GND Pins | 50mA |
Documentation & Online Support
Development
| Title | Links | Description |
| C/C++ API | C/C++ API desription. | |
| .NET API | API description for .NET development. | |
| LabView Instrument Driver | NI LabView instrument driver and LabView examples description. |
General
| Title | Links | Description |
| User Manual | Installation tutorial, system requirements, firmware update instructions. |
Online Support
| Title | Links | Description |
| Community forum | Create forum thread to get answer or communicate other thread to help community members | |
| Email products support | Email us to ask product support questions. | |
| Email orders support | Email us to ask questions regarding purchasing and applied orders. | |
| Customer online form | Submit customer online form |
- CAN to USB Interface saelig
- CAN BUS canbuskit
- NUC140 instructables
Key Features
- USB-I2C interface with configurable frequency from 1kHz to 1MHz, wide supply voltage range (2.3V to 5V), multimaster and clock stretching support;
- USB-SPI interface with configurable frequency (up to 4MHz), phase and polarity;
- 32 digital I/O pins with embedded pull-up resistors;
- 8 10-bit analog inputs (ADC);
- 2 PWM outputs;
- 2 32-bit pulse & frequency counters;
- event-driven interface for digital inputs, analog inputs and pulse counters
- 1 status LED and 2 user-configurable LED's;
- no hidden fees: API, updates, software and technical support are free;
- USB 2.0 full-speed (12 MHz) connection to personal computer;
- backward compatible with our well known U2C-12 USB-I2C/SPI/GPIO Interface Adapter;
- RoHS Compliant
General Description
DLN-2 USB-I2C/SPI/GPIO/PWM/ADC adapter is an ideal solution for interfacing your hardware from Windows, Linux or Mac OS X based computer.
The DLN-2 adapter allows you to send and receive data to/from I2C and SPI slave devices at high frequencies, control your hardware using PDM interface and digital outputs and monitor it with digital and analog inputs and pulse counters.
There are a lot of open source examples and ready to use programs that you can download for free from dlnware.com web site. There you can also find comprehensive documentation and examples that show how to interface the DLN-2 adapter from different programming languages.
The DLN-2 interface is available in two modifications:
- the assembled PCB board that you can connect to your hardware with the Diolan accessories;
- the preprogrammed microcontroller (system-on-chip) that you can embed into your hardware.
Event-Driven Interface
Captain sim keygen. Winrar v5 01. One of the most exciting features of DLN-2 USB-I2C/SPI/GPIO/PDW/ADC adapter is an event-driven interface.
You can configure the DLN-2 adapter to notify your application when a specific event occurs. Let's see that on example. Here is an example.
Let us assume that your application controls a voltage level at some circuit. If the voltage level exceeds 1.6V, it notifies a user about that.
The competitive adapters leave you with the only option to continuously poll the analog input for current value, unreasonably wasting computer resources and USB bandwidth.
The ADC module of the DLN-2 adapter can notify your application when the voltage level exceeds a preconfigured threshold. Your application can set the upper threshold value to 1.6V and continue its regular operation. When the predefined condition occurs, your application will receive an event and notify a user.
The event-driven interface is available for digital inputs, analog inputs and pulse counters.
U2C-12 USB-I2C/SPI/GPIO interface adapter compatibility
Before we developed the DLN-series adapters, we had a U2C-12 USB-I2C adapter that was used by thousands of our customers. After U2C-12 adapter was discontinued, we replaced it with the DLN-2 adapter, which has exactly the same form factor.
The DLN-2 adapter has more extended functionality in comparison with U2C-12 adapter. It supports additional interfaces and higher frequencies. These improvements required from us to change API.
Some of our customers didn't want to adapt their software to our new API. We put our customers at the center of all we do and we have developed the firmware for DLN-2 USB-I2C adapter that is fully compatible with the previous U2C-12 API. These adapters are available for purchase under part number DLN-2-U2C. For additional details refer to the U2C-12 compatibility article.
USB-I2C Interface
The I2C bus frequency of the DLN-2 USB-I2C adapter can be configured in the range between 1kHz and 1MHz. This allows you to connect I2C slave devices that operate in Standard (100 kHz), Fast (400 kHz) and Fast Plus (up to 1 MHz) I2C bus frequency modes.
The DLN-2 interface adapter has two sets of I2C pull-up resistors: 240 Ohm and 1.5 K. You can select which set of pull-up resistors to use with the on-board jumpers. If an external I2C circuit is already equipped with pull-up resistors, you can disable the pull-up resistors that are located on the DLN-2 adapter.
You can connect these pull-up resistors either to the DLN-2 power supply, or to the external power supply. In case you use the DLN-2 power supply, you can select between two options - 3.3V or 5V. The external power supply can vary in the range between 2.3V and 5V.
The DLN-2 USB-I2C interface supports multimaster environment. It can detect if the I2C bus is occupied by another I2C master device.
If your I2C slave device is not able to co-operate with the clock speed given by U2C-12 adapter, it can slow down the communication with clock synchronization (clock-stretching).
DLN-2 supports only I2C master interface. If you need to use I2C slave interface as well, consider switching to DLN-4S adapter.
| Symbol | Parameter | Condition | Min | Max |
| Freq | I2C Bus Frequency | configurable | 1 kHz | 1 MHz |
| PullUp | Pull-Up Resistors | configurable with solder bridges | 240 Ohm | 1.5K |
| VIH | Input High Voltage | 2.31V | 5.5V | |
| VIL | Input Low Voltage | -0.3V | 0.99V | |
| VOHi | Output High Voltage | Internal VCC | 2.9V | |
| VOHe | Output High Voltage | External VCC | (VCC-0.4)V | |
| VOL | Output Low Voltage | 0.4V |
USB-SPI Interface
The SPI bus frequency can be configured in the range between 2kHz and 10 MHz. Slotomania bonus collector facebook. If you need a faster SPI interface, consider using DLN-4M adapter.
In addition to SPI bus frequency you can also configure the clock polarity (CPOL) and phase (CPHA). DLN-2 USB-SPI Interface supports all 4 SPI bus modes.
DLN-2 adapter operates on 3.3V. However, its SPI interface pins are 5V-tolerant. This allows using DLN-2 adapter with 5V SPI circuits.
DLN-2 adapter can perform half-duplex (read or write) and full-duplex (simultaneous read/write) data transactions.
DLN-2 supports only SPI master interface. If you need SPI slave interface, consider using DLN-4S adapter.
| Symbol | Parameter | Condition | Min | Max |
| Freq | SPI Bus Frequency | configurable | 2 kHz | 10 MHz |
| SS | Slave Select Pin | 0 | 5 | |
| VIH | Input High Voltage | 2.31V | 5.5V | |
| VIL | Input Low Voltage | -0.5V | 0.99V | |
| VOH | Output High Voltage | IOUT= 4.0mA | 2.9V | |
| VOL | Output Low Voltage | IOUT= -4.0mA | 0.4V |
USB-GPIO (General Purpose Input / Output) Interface
The DLN-2 adapter has 32 GPIO pins Minecraft pe 2. which can be configured as digital inputs or outputs.
Every GPIO pin is equipped with an embedded pull-up resistor. These pull-up resistors are turned on by default to ensure that DLN-2 input pins get the predefined value when no external device is connected.
The DLN-2 adapter stands out against competitive products by its support of event driven interface. With other adapters you would need to continuously poll the GPIO pin for changes, wasting the resources of your PC and USB bandwidth. You can preconfigure the DLN-2 adapter to notify your application (send events) when the input value on the specified GPIO pin is changed.
| Symbol | Parameter | Condition | Min | Max |
| VIH | Input High Voltage | 2.31V | 5.5V | |
| VIL | Input Low Voltage | -0.5V | 0.99V | |
| VOH | Output High Voltage | IOUT= 4.0mA | 2.9V | |
| VOL | Output Low Voltage | IOUT= -4.0mA | 0.4V | |
| IL | Input Leakage Current I/O Pin | 0.001mA | ||
| IDC | DC Current per I/O Pin | 3.0V | 8mA |
Absolute Maximum Ratings
| Parameter | Min | Max |
| Storage Temperature | -66°C | +150°C |
| Ambient Temperature Under Bias | -40°C | +85°C |
| DC Input Voltage to Any Pin | -0.5V | +5.5V |
| DC Input Voltage to Pins in ADC mode | 0V | +3.6V |
Operating Conditions
| Parameter | Min | Max |
| Ta (Ambient Temperature Under Bias) | 0°C | +70°C |
| DC Current VCC and GND Pins | 50mA |
Documentation & Online Support
Development
| Title | Links | Description |
| C/C++ API | C/C++ API desription. | |
| .NET API | API description for .NET development. | |
| LabView Instrument Driver | NI LabView instrument driver and LabView examples description. |
General
| Title | Links | Description |
| User Manual | Installation tutorial, system requirements, firmware update instructions. |
Online Support
| Title | Links | Description |
| Community forum | Create forum thread to get answer or communicate other thread to help community members | |
| Email products support | Email us to ask product support questions. | |
| Email orders support | Email us to ask questions regarding purchasing and applied orders. | |
| Customer online form | Submit customer online form |
Hardware Information
| Title | Links | Description |
| Connectors and Jumpers | Port and pins assignment on available connectors and jumpers description. | |
| Schematics | Board schematics. | |
| Mechanical Drawing | Board mechanical drawing. |
Software
| Title | Links | Description |
| MS Windows Setup Package | Contains driver, API libraries, binaries and software examples source code to use DLN adapter in MS Windows OS. | |
| Linux Setup Package | Contains all required files to start using DLN adapter in Linux. | |
| Firmware Update | Latest firmware update for DLN adapter. Firmware can be downgraded with this application also. |
Csr Usb To Spi Converter Schematic Free For Mac Download
