usbn2mc - An universal USB Interface
1. What's usbn2mc?
usbn2mc is an universal USB Interface for a Microcontroller which has 12 I/O Pins, a SPI Interface or a DMA Controller. The project is based on the USB Bridge from National Semiconductor USBN9602/ USBN9603 / USBN9604. The Advantages of this USB-Controller are the price, the configuration and the availability in many electronic shops.
The main part of the project, is the common usb layer of the controller, which manages the communication with usbn960x. It is written in ANSI C, this means it compiles with every ANSI C Compiler.
With usbn2mc you can build and copy every usb device. It is also possible to implement class and vendor requests.
The connection between your device and your application is quite easy to realize. You can finde many examples in our example section.
The firmware needs about 6K code memory, and circa 500 Byte RAM.
Example:
It is easy to develop your own device with the usbn API.
Define your vendor, product and device number:
USBNDeviceVendorID(0x1234);
USBNDeviceProductID(0x9876);
Give your device a name:
USBNDeviceManufacture("My little firm");
USBNDeviceProduct("My device");
USBNSerialNumber("rev 1.0");
Add Configurations:
conf = USBNAddConfiguration();
USBNConfigurationName("xyz");
USBNConfigurationPower(50); // Power in mA
Add Interfaces:
interf = USBNAddInterface(conf,0);
USBNInterfaceName(conf,interf,"usblp");
Add Endpoints for the communication:
USBNAddInEndpoint(conf,interf,1,1,BULK,64);
USBNAddOutEndpoint(conf,interf,1,2,BULK,64,&PrintOnLCD);
The last parameter is the function which is called when the device receives some data on the endpoint.
Link to Project: http://usbn2mc.berlios.de
1. What's usbn2mc?
usbn2mc is an universal USB Interface for a Microcontroller which has 12 I/O Pins, a SPI Interface or a DMA Controller. The project is based on the USB Bridge from National Semiconductor USBN9602/ USBN9603 / USBN9604. The Advantages of this USB-Controller are the price, the configuration and the availability in many electronic shops.
The main part of the project, is the common usb layer of the controller, which manages the communication with usbn960x. It is written in ANSI C, this means it compiles with every ANSI C Compiler.
With usbn2mc you can build and copy every usb device. It is also possible to implement class and vendor requests.
The connection between your device and your application is quite easy to realize. You can finde many examples in our example section.
The firmware needs about 6K code memory, and circa 500 Byte RAM.
Example:
It is easy to develop your own device with the usbn API.
Define your vendor, product and device number:
USBNDeviceVendorID(0x1234);
USBNDeviceProductID(0x9876);
Give your device a name:
USBNDeviceManufacture("My little firm");
USBNDeviceProduct("My device");
USBNSerialNumber("rev 1.0");
Add Configurations:
conf = USBNAddConfiguration();
USBNConfigurationName("xyz");
USBNConfigurationPower(50); // Power in mA
Add Interfaces:
interf = USBNAddInterface(conf,0);
USBNInterfaceName(conf,interf,"usblp");
Add Endpoints for the communication:
USBNAddInEndpoint(conf,interf,1,1,BULK,64);
USBNAddOutEndpoint(conf,interf,1,2,BULK,64,&PrintOnLCD);
The last parameter is the function which is called when the device receives some data on the endpoint.
Link to Project: http://usbn2mc.berlios.de