51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Monday, November 17th, 2008 at 18:12 | No comments

Categories: EDA/PLD

Tags: FPGA, HDLC, NiosII, SOPC

Short Content: Abstract: The NiosII system is Altera Corporation's SoPC solution, the HDLC agreement is in the correspondence domain face the bit high-level data link control regulations. Introduced communication protocol realizes the method based on NiosII the soft nucleus's HDLC, and in the foundation which the agreement realizes, has completed to the unattended base-station system's monitoring and the management. The base depot end's function by completes based on NiosII soft nucleus's SoPC, PC machine completes as the monitoring center to the base ...

Monday, October 27th, 2008 at 22:43 | No comments

Categories: Communication Networks

Tags: embedded microprocessor, HDLC, SCC, SDH, uart

Short Content: Abstract: Corresponds the tradition design method insufficiency in view of the SDH transmission system board, introduced that one kind uses the HDLC agreement to carry on the design the new method. And can realize on the MPC852T embedded microprocessor. The strict confirmation proved that it has obtained the very good performance in reliable and the transmission speed aspect.Key word: UART:HDLC:SDH: Embedded microprocessor; SCC 1 introduction    Whether between the board corresponds the main line decides one of SDH system equipment stable ...

Tuesday, October 21st, 2008 at 08:52 | No comments

Categories: Communication Networks

Tags: E1, EP1C6, FPGA, Frame structure, HDLC, TS0 time slot

Short Content: Picking    Wanting: This article introduced one kind HDLC which realizes with FPGA transfers E1 the agreement controller, can realize the speed is N×64Kbps(N=1~124) HDLC data minute meets to M group (M=1~4)E1 channel in transmits, and permits each group E1 the biggest latency is 64ms. Discussed the E1 frame structural design and system's FPGA realizes the method.Key word: Frame structure; HDLC; E1; FPGA Introduction    E1 is our country telecommunication transmission network group use transmission standard, because our country's E1 resources are ...