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39 Threads found on edaboard.com: Asynchronous Interface
I'm assuming the two values you provide are the clock periods of each clock. These are asynchronous clock domains. I sure hope you correctly designed the interface between them and have syncrhonization logic between the two domains. It is normal to add set_max_delay paths paths, or set_false_path (not my preferred method) for those cross clock do
Hello all, I want to interface a parallel asynchronous SRAM with my Zynq 7020 FPGA. I just want to know which are all the feasible IPs that can be used to integrate these two modules?
hello, With 8Mhz.. you can't use 115200 bauds see datasheet BAUD RATES FOR asynchronous MODES (CONTINUED) even at 57,6 Kbd and SPBRG=8 you get -3.55% Bauds error.. try it before with 19200 ...and increase step by step.. or use higher FOSC .. 64 MHz ? What hardware interface do you use ?
1 wire LCD interface This project is for a simple 1 wire interface for LCD displays, using 8 bit asynchronous communication.(8N1) interfaces for 2 types of displays are shown. The first is for a 3 digit 7 segment LCD display. The second for a 16x2 LCD display. The project began with some 3 digit 7 segment LCD's (...)
Hi Experts, Could someone help me in checking the timing analysis for GPMC interface in layout level simulation. Im new to this. The GPMC interface (clock freq - 100MHz) connection is from AM4377 ARM processor to ASIC - NOR flash, asynchronous, non-multiplexed mode. How to start with checking the timing characteristics for the (...)
Hi, Can anyone help me with the logic and code for integrating a FIFO whose output is 8 bits to a standard AHB interface logic. Thanks
Designing an I2C interface without internal (fast) clock targets to a fully asynchronous design. It's surely possible most simple I2C interface chips, e.g. PCF8574 are designed this way. Besides asnychronous logic they also rely on glitch filters to meet the I2C specification. I doubt that you find sample designs, but why not design it from (...)
I am trying to interface PIC628A with WT32i. PIC has USART interface and WT32 has UART pins. Knowing that "Synchronous mode (USART) requires both data and a clock and asynchronous mode (UART) requires only data" I concluded that I have to connect pins 8 and 9 of PIC to respective WT32 pins (16 and 15) But I am confused WT32 pin#s 20,21 (...)
Am using Z85C3016VEG SCC controller interface with Altera FPGA in asynchronous mode and half duplex operation. Question: 1. PCLK pin & SYNCA whether to be connect or not ? 2.How much value pullup resistor need for control signals like INT#,WR#,RD# & CE#.? 3.what is going to be done other signals CTS#,DTR#,WAITREQ# & DCD#. ? Please send y
Hi All, I'm working on a project for one of my classes in which I get to implement a design of my choosing, and I am attempting to interface with the on-board Cellular RAM of the Nexys-3 Spartan 6 and do asynchronous and synchronous reads and display the data from the memory (which I programmed using the Adept interface) to the 4 SSD's (...)
In usual terms, CAN transceiver refers to the interface chip, e.g. MCP2551. It's also needed when using a CAN controller as FPGA core. Controller cores are available e.g. from opencores.org. If using it for a commercial product, you would need to pay license fees to Bosch. The asynchronous nature of CAN is obvious when looking at the (...)
USART is hardware - Universal Synchronous asynchronous Receive & Transmit Engine. No fixed protocol (7,8 or 9 bit with or without Receiver Addressing) but is normally capable of protocols that incorporate: asynchronous - usually RS232, RS422 & RS485 - two wires TX & RX with pre-defined data rate and receiving synchronised to incoming data stream.
Is the VFD a module with controller chip on board? Do you have a part number? If it's a module, then there are a few basic methods of interface (asynchronous or synchronous serial, and 8-bit parallel) and then such things as character set and instruction set to consider. It can be done; the complexity depends mostly on whether the instruction set
To start with a simple thing. CS is an asynchronous input directly controlling DOUTx output enables, so it's effectively impossible that no change of output state occurs when activating it. The outputs should change from high Z to either 0 or 1. Generally, check all supply voltages and correct level/timing of serial interface signals.
Flash being an asynchronous interface there is no need for strict length matching of signals. Hence one need not have to bother too much about layout of Flash memory
Hey Sun_ray, During Static timing Analysis (STA), design functionality is "NOT" checked, only timing is checked to see if it meets the timing specification. That is why gate level simulation is done with timing to see if functionality is correct with timing. It is also true that STA does not check asynchronous interface. So simulation is n
Are you attempting to interface a ZigBee Module to your dsPIC? Is this the device: Z-Accel 2.4 GHz ZigBee? Processor If so the CC2480 ZigBee Module supports both asynchronous serial (UART) or SPI interface. The SPI would be the most versatile, the UART the simplest to implement. In usi
Hi 52eoc, Are you sure the RFID reader has an asynchronous serial and not a Wiegand interface? Most commercial RFID readers have a Wiegand interface due to the long-hauls from the reader to the controller?
Dear all, How to design a FIFO for taking two ASI inputs.Experts please tell me the flow. Thank's Sushant.M
Strictly speaking, RS-232 standard specifies electrical characteristics and other interface details, but does not specify protocols, encoding, etc. It can be used both in synchronous or asynchronous links. Nevertheless, many serial links that usually use RS-232 (e.g. COM ports in PC) are asynchronous: they send characters in (...)


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