The the CAN232P type world the only USB/RS-232/RS-485/422 Universal's Universal serial / CAN converter the Boshi CAN232P Universal serial / CAN converter adhering to consistent feature Boshi converter: ultra-small form factor (80 * 23 * 47mm), USB/RS-232/RS-485/RS-422 General, including USB virtual local COM serial port. Using the USB port, no power supply, and serial communication program to realize the complexity of the CAN protocol communication. The Boshi CAN232P is the world's smallest, but also use the easiest universal serial / CAN converter, to achieve a USB RS-232 and RS-485, RS-422 and CAN protocol transparent conversion. The product itself with communication settings. CAN232P Boshi new generation of patented products, Beware of imitations! Patent No.: 201120197328,200630307752. CAN232P universal serial / CAN converter universal USB/RS-232/485/422 turn the CAN protocol USB-powered optical isolation Boshi universal serial / CAN converter to achieve USB/RS-232/RS-485/RS-422 with CAN transparent protocol conversion, transparent with logo conversion. The USB port can be connected to the computer power supply and conversion to virtual serial port, which can be accessed USB power only for power supply. The product uses a high-performance, low-power communications chip, built-in high-performance microprocessor, has a strong anti-interference, stable communication can be widely used in various occasions CAN-serial communication and industrial control field. The product itself can be its own USB port or serial port to the computer using the configuration program for serial and CAN communication format settings, and then use the serial communication program CAN protocol communication. Hardware installation CAN232P type serial / CAN converter power extrapolate the supplied USB extension cable (A USB port to Type A USB port) by supporting the USB port or computer USB port. Extrapolation computer USB port when either power supply, and generate USB virtual serial port. The RS-232/485/422 serial port of the of Boshi CAN232P products end is a DB-9-pin Block, RS-232, RS-485, RS-422 all pins. Exactly the same as the RS-232 port with DB-9-pin RS-232 port of the PC, 2,3,5 foot allocation. As RS-422, T +, T-refers transmitted from CAN232P outwardly. Note proposed to the grounding line (5 feet), RS-485 and RS-422 communication. Jumper selectable RS-485/422 without. The RS-485/422 signal reference ground GND RS-232 is the same. When CAN232P USB port to the computer, and the computer's USB virtual serial communication does not require a power supply. DB-9 pin (male) end of the pin allocation is as follows: 1 2 3 4 5 6 7 8 9 RS-232 RXD TXD GND RS-485 A GND B RS-422 T + GND R + R-T-used to set parameters need wire terminal board R + then shorted GND (6 feet and 5 feet), set after disconnect the wires and re-add power. Performance serial interface the USB/RS-232/RS-485/422 size and weight of 80 * 23 * 47mm, 90 grams of serial baud rate 1200 ~ 115200bps transmission rate of the highest the CAN rate of 400 per second 5K ~ 1000K supply voltage of 5V ( isolation voltage of ± 0.5V) the 2500V power socket standard USB Block (with computers) Operating temperature -40 to 85? C power consumption <150mA software is installed, the USB virtual serial port the software CAN232P supporting a 1 meter long USB extension cable. The root USB cable can be used as power supply cable (power to the USB socket or the computer's USB port access supporting), can also act as a USB virtual serial communication cable. When used as a virtual serial communication, USB virtual serial port software needs to be installed, the software same the Boshi USB232GH2 series converter software. Run directly corresponds to the operating system, installed software can. Users can view the "control panel" System \ Device Manager \ port ", you will find CAN232P a new COM port number is automatically assigned to. Remember this COM port number. If you want to change the COM port number, such as Windows XP, desktop à My Computer \ Properties à Hardware à Device Manager à port à communication port (find serial port CAN232P) the \ attribute à port settings à àCOM port number, the user You can change the COM port number. Can be forcibly changed to the COM port number has been occupied. The product's USB virtual serial port, RS-232, RS-485 and RS-422 port to send the data will be converted to the CAN protocol signals, so do not use at the same time send. CAN receives the signal sent to the USB virtual serial port, RS-232, RS-485 and RS-422 port. Communication configuration tool software is used to set the parameters with a wire to the terminal board R + then shorted GND (6 feet and 5 feet) and power product power off and then re-enter the set state. Can be connected to the computer's USB port, USB virtual serial port settings, terminal board, RS-232 or RS-485 port can also be used, but do not set using the RS-422 port. CAN232P software set is shown in Fig. 2.1 conversion parameters set conversion mode: the optional transparent conversion and zona logo conversion. : Transparent conversion the transparent conversion, CAN232P received into the side of the bus, data is converted immediately sent to the other side of the bus. Such data stream processing, maximize CAN232P conversion speed, but also improve the utilization of the buffer. The transparent conversion occurs Options: Allows the CAN frame information forwarded to the serial frame and forwarded to the serial frame allows CAN frame ID: CAN bus data is converted to a serial bus, which can decide whether the CAN message frame information (data length), the frame ID is converted to serial data. If you need to select (tick √) CAN message frame, frame ID is converted to serial data CAN frame, the frame identifier sent to the serial port. If you do not, you do not elect (remove √) CAN message frame or frame ID will not be converted to serial data. If not chosen, the CAN message frame information, and frame ID will not be converted to serial data, the serial port only receives the data bytes of the CAN, this serial data is exactly the same with the CAN data, the original serial software no need to amend can be used directly. Zona pellucida identity conversion "address" in the serial frame is automatically converted into the CAN message frame ID. "Address" in the serial frame starting byte serial frame, "address" of the length determined by the CAN message format. CAN message format in the configuration of a standard frame, the "address" of length 2 bytes; if you choose for the expansion of the frame, the "address" of the four bytes in length. The extracted frame ID "fill in the CAN message frame ID field, as the serial frame forwarding CAN message frame ID CAN232P conversion. Converted into CAN message the serial frame when the CAN message frame ID conversion in the serial frame, but the frame information not be converted. This serial data analog data of the CAN protocol. For details, please refer to the product CD-ROM. The 2.2 serial parameters set the serial port baud rate: serial port baud rate between 1200bps ~ 115200bps optional. Default 57600. 2.3 CAN parameter settings (1) CAN baud rate: Here you can select the recommended 15 standard baud rate, 5K-1000K optional. (2) CAN configuration parameters further comprises the frame type, and transmitting an identifier configured. Frame types are divided into standard frame transmission and extended frame transmission. Users according to their needs, select the type of message you want to send. Standard frame, the user data will be standard frame format sent the frame identifier is 11, so send the identifier only after two effective; If you choose the extended frame, the user data by the extended frame format Send this the identifier of the time frame is 29, four transmission identifiers are valid. Frame identifier that send the module to the ID number on the CAN bus standard frame 11 ID expansion frame 29 ID. Here users need ID, write directly to the corresponding box, pay attention to the standard frame 11; The extended frame 29 effective. (3) CAN receive filter mode configuration includes receiving the message type, shielding the register and filtering register set. (Box grayed out) that receives all packets effectively filters enable invalid optional only receive standard frame and only receiving extended frame. The user choose according to their needs. Choose to receive all messages Close message shielded filtering function, shielding and filter registers need not be set (the box is grayed out), the module receives all messages on the CAN bus. Choose to receive only the standard frame, shield filtering mask and filter registers to set the module can be set at this time. By setting these two registers, the module can only receive the qualifying standard frame packets. Shielding is used to set message ID check bit 1 means the check, 0 indicates no validation. If the shield set to FF FF FF FF, said the message ID should check. Acceptance with the shield used in conjunction with, the shield, the parity bit, and coupled with the acceptance of the value set in this bit. Only "and" conditions will be received. Therefore, if set to 0x260, the bus only message ID 0x260 packets, the module will be receiving. Because there are two acceptance register so it can simultaneously receive the two ID packets, of course, can also be set to the same. This feature can be shielded for some of the packets received, to improve the utilization of the bus. Note that the standard frame 11 the extended frame 29. 2.4 Key Description default configuration: its parameters can be restored to the factory default values. Write configuration: After parameter setting, click on the button about to write the configuration parameters for the CAN-RS232 converter. Reading configuration: View the configuration state to see if correct. If Yes, check the R + and GND shorted then software configurations. Disconnect terminal board after setting R + and GND (6 feet and 5 feet) shorted wire, and re-power. CAN232P is an independent transparent serial / CAN protocol converter. After the the 3 application instructions and precautions module configuration, disconnect the R + GND, enter the normal operating mode after power on. Can now use serial debugging assistant serial communications software for serial and CAN communication. If the product is set to transparent conversion mode (Note: This is to enable the case of frame forwarding information and ID), then send area to fill the need to send data (hexadecimal), click on the send button. The receive window displays CAN frame type, frame ID and data (hexadecimal). Note: this is an enable the forwarding of the frame information and ID, if you turn off this feature, received only the contents of the data byte, no frame information and frame ID, i.e. to achieve the same serial communication transparent transmission. * In CAN232P use or testing process, CAN network shall be added to the termination resistor Doing so may render communication is unsuccessful. * "Configuration mode" and "normal work" mode switching, you must re-power-on time, otherwise still perform original work mode, the switch can not be successful. A power-not too short. * CAN bus is half-duplex, so the data conversion process, you must ensure that both sides of the bus data ordering. If both sides of the bus to send large amounts of data to the converter at the same time, will likely lead to incomplete data conversion. *. Alerts using CAN232P, the time interval of the baud rate should be noted that both sides of the bus, and both sides of the bus for transmitting data, conversion should be considered as a baud rate lower bus data carrying capacity. Such as the CAN bus data to the serial bus, CAN bus rate can reach thousands of frames per second, but the serial bus only to hundreds of frames per second. So when the CAN bus at a rate too fast will result in incomplete data conversion. Under normal circumstances, CAN speed is 2-3 times the speed of the serial data stream transparent conversion, the speed of the serial port of the sender <= serial recipient. CAN232P maximum transfer rate of 400 per second.