This paper introduces how to implement the audio player with the TMS320VC5510 Multi-channel Buffer Serial Ports (McBSP) and the TLV320DAC23 audio CODEC.
This system mainly consists of several AT89C2051 microcontrollers. Serial ports of AT89C2051 microcontroller realize the network based on RS-485 serial communication, which is easy to accomplish remote control.
LongtiumSl is compatible with PC/104 protocol, which is composed of a embedded processor compatible with the Intelx86 integer and floating-point instruction sets, a SDRAM controller, a programmable interrupt controller, two serial ports and a parallel port. LongtiumSl provids 7 DMA channels, 3 timers and PC/AT keyboard interface.
In order to solve the capacity for TMS320C6000's UART communication,a new scheme was presented for expanding UART interface by using multi channel buffered serial ports and dedicated chip of asynchronous communications transceiver .
It can expand one USB port on PC into eight general serial ports,and in the device driver the 8 serial ports were used as virtual serial ports,then the host can use these serial ports through the USB port as the common ones locally.
Now the communication between main system and subsystem in DCS-communication interface of DCS serial ports,communication methods,MODBUS communication agreement etc.
Serial port extended technology of single-chip-microcomputer has been utilized in serial interface extension about 8751 of MCS51 series, including extension of two unaided serial ports, one spot to multi-spot assignment time serial port, and serial communication interface between single-chip-microcomputer and RS232/RS422/RS485. Practical application proves that the design is well reliable and stable.
In this paper the author introduces asynchronous communication element and digital signal processor of the texas instruments corp. TL16C554 and TMS320C5402, and expands serial ports of DSP based on TL16C554 and DSP.
The operational principle and principle and programming method of communication for the dual serial ports of DS80C320 single chip computer are presented. The design and implementation of the converter of communication protocols for intelligent devices are given.
This paper introduces a communication mode between PC and temperature controller of REX-D. The programming method of RS-232 serial ports of PC and the program design method of principal and subordinate Multi Computer communication are given.
Real time data acquisition, processing and storage are difficult in some places that lack alternating-current power supply to micro-computers. The portable computer is small in size, light in weight and powered by battery, and is suitable for some special cases. However, many portable computers has no bus slot, and the normal interface circuit board can not be used for real time data acquisition and processing. Parallel and serial ports of portable 昪omputer are used as signal channels for real t...
For the application of IBM-PC based SCADA system in power network, the paper introduces an Intelligent Controller (IC) based on IBM-PC personal computer. The Intelligent Controller (IC) contains an Intel 8086 CPU , 64K RAM and 64K EPROM. This microcomputer controls sixteen serial communication channels, pre-processes and transfers data between the IBM -PC and serial ports. The transfer of command , status message and data packets is performed through a window structure in IC module which i...
Reliability is the most important requirement of the microcomputer relaying system.It is the first time that 8098 one-chip computer and VFC data aCquisition systemare combined into a general high reliable multi-microcomputer relaying hardware system.The following advantages are obtained f Busses limited in a single board,two stage adiministration by serial ports,digital system with no relation to analog system in electricity,simple construction and high speed.