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118 Threads found on edaboard.com: Spi Simple
Hi, It depends on your RF &... etc and also processing power. For example : some RF Modules use UART and some of them use spi. GSM modules usually use USART. LCD can use spi or I2C or Parallel. BTW, which type of LCD do you want to use? simple 2 Text Lines or Some color LCD with Graphic Capabilities? SD Card uses (...)
spi interface gives a reasonable trade-off between hardware effort and code and would be my first choice for moderate data throughput - 4 interface lines - supported by microcontroller hardware module - simple and straightforward FPGA code
Although you say it's 12 bits maybe the packet is 16, either arbitrarily (from the controller) or for some cause like start/stop/parity/8b10b bit overhead. simple reason, spi frame length is a multiple of 8 bits by protocol specification.
Hi Friends, I couldn't give a valid reason to someone who had asked me this. Why can't spi be standardized to one CPOL and CPHA? having 4 different modes creates more chaos. Is there any logical reason for which these four modes exist. Compared to spi, other protocols like I2C, UART or CAN have their physical layer protocol well defined.
This is simple unencripted eeprom with spi interface. You can use TL866 to read and write it. If SO8->DIP8 adapter have to be used, read it once and verify multiple times to be sure, that it is connected properly. For writing it is the same. And don't tell anyone that you are planing to reduce mileage of your car before sell it.
Can dual and quad mode in memory devices be used optimally? I have read a datasheet on a flash device and another on SRAM device. Both of them appear to have dual and quad modes of operation where the serial data is transmitted from 2 or 4 pins simultaneously. This means that data transfer rate into and out of the device is increased by 2 to 4 t
A small ?C, e.g. in 8 or 14-pin package is the cheapest and most simple way to configure these transceiver modules. It depends on the transceiver features, if you can send/receive a digital bit stream directly to/from the transceiver or the data must also go through spi.
There are many examples of using spi in this forum and on the Internet generally. However I's guessing from your question that you are not familiar with the device you are using. Therefore I'd suggest that you start with the simple "flashing LED" program because, as you will find, there can be quite a steep learning curve to get a program running o
Hello all Arduino users. We'd like share with you new project. I/O Blocks Toolkit (or IOB in short) is a framework targeted towards Do-It-Yourself community of makers. It is a swiss army knife to manipulate electronic devices, from simple transistor switches to digital interfaces, such as I2C or spi. You can explore it on https://iobtoolkit.
What are some modern fast/flexible Intermodule / PCB-to-PCB busses commonly used with FPGAs/SOCs? That is, buses that are off chip and off board. Some I can think of off the top of my head are. Serial: I2C, spi, and RS485: very simple but flexibility and speed are limited. PCI Express: Fast and flexible, but would need an FPGA on each ca
Following simple question: When I add a spi 3-wire serial interface in QSYS I can set several parameters like: Type, clock speed, data width etc.. So why do I need those parameters when I setup the spi interface directly in VHDL? In other words, are those parameters only valid when I this interface with a NIOS? Thanks!
My other question is about this type of programming? I am familiar with structures or pointers but I cannot understand why don't they use simple function It's the C++ way of handling things. I agree that it's not necessarily advantageous for a "casual" C-programmer, but it can improve clarity and comprehensibility of large project
I believe, you can find out how many 512kBit EEPROMs are needed to store 1.7 MByte of data, either using a pocket calculator or pencil and paper. Unfortunately, you can't address more than 4 devices on an I2C bus. There's no simple solution using serial EEPROMs. My suggestion would be a 16 MBit serial spi flash, if you live with page wise erasur
Hello guys, Is there any one site which can give best information on UART, spi,I2c protocols.
Hi, Your question is a bit general You didn't provide datasheets and i don't like to search the internet and read through all the datasheets. But if your question is if you can connect spi devices with UART devices...then i don't think this is a good idea. I can't imagine a simple solution. Klaus - - - Updated - - -[/SIZ
Hi, I want to interface LinkIt Connect 7681 with another board that provides spi interface. In the API description of LinkIt Connect it is written that the spi interface provided can be used to interface a 1MB flash memory with the board there is no information about whether it can be used as a simple spi Master/Slave. (...)
Hai, I got a voice recorder ic Apr33a3 from aplus India. When I downloaded the datasheet, I got two one contain suffix "C1" and the outer one is "C2". In C1 the recording and play back options are done by simple buttons. But in C2 the controlling is done by "spi" protocol. My question is how can I identify my ic whether it is C1 or C2? Posted
which type of battery you are using NImh or Lithium Iron ?for LiOn many ic for monitoring voltage ,low voltage of battery,battery charge current,temperature search on ti website.for read data from such IC simple spi or I2C protocol need to use.
I am communicating TMS570 microcontroller with A4960 motor controller over spi. During the communication, data is lost because some times, transmission is not successful. I want to troubleshoot what TMS is sending. Is there any way that I can see spi data over my PC? spi baud rate is almost 1Mhz so I can not use simple (...)
it depends on the component often we have general purpose boards where some of the components depend on the application on power up the microcontroller tests for each component and if not found issues an error message and disables its functionality this is simple with devices such as modems and interfaces such as spi and I2C where one can test t
I need a simple spi interface to be implemented in a cpld to enable communication with a tracking resolver (e.g. ad2s 12-series, read serial data as speed, angular position and writing resolver settings). Does anyone have a vhdl file that gives a good starting point? Also a model for a resolver in vhdl that could be used in a TB (test) would be
hi.. im using hitech compiler and 18f452 controller i want to use nRF24l01 rf module. i m cant understand this rf module . its very complicated. and hitch have no spi header files. any one give me nRF24l01 simple running code in hi tech .i found many file but these are not in hitech.i want just simple one char send and receive.
if you are thinking of wireless the Microchip RN171 is a simple device to use it has an onchip TCP/IP stack and UART and spi interfaces also Lantronix has a range of devices
Hello All. i am now for PIC microcontroller. I tried allot but the spi is not working. my aplication is take the data form MCP3550. and show on 4 digit 7 segment. i am just getting the problem in communication between PIC16F887 and MCP3550. please guide me how to make alive the communication between them. this is the simple code the i an tr
Hi everyone I use CC1100 transceivers in my project. On the one side I use msp430 TI uC. I need to transmit data to the PC. On the PC side I've used so far the mcp2210 brige. This bridge is very easy in use and simple to program. I've written simple C# application form and I am able to write settings to the transceiver on the PC side as well
Hi everyone, I designed a circuit by cadence virtuoso and extracted the spice netlist (.scs). Then I want to simulate it using spectre. 1. Could someone give me a simple example about how to use the .scs file to simulate (just include this file into the new .spi)? 2. It's not difficult if I just use a few variables (inputs) for (...)
A problem with increasing the clock and processor speed is that the peripheral clock will increase as well this would lead to you having to change UART baud rate counters, timer counters, etc (plus I2C, spi, CAN, ????) also if you are using delays using simple loops, e.g. to slow read/writes to an LCD or similar device, these can cause problem
For short speech or sound effects when quality isn't very important I use simple PWM at low sampling rate. Even at 4K rate the quality is acceptable. I use a PIC 18F series device and an external memory, either I2C or better still spi (because it's quicker). For sounds <6 seconds there is enough space inside the smaller PICs internal memory withou
I have this simple parallel port programmer that needs to be modified to 1.8 volt chips, but i have no idea howto make those data lines work with lower voltage.
G'day, I've been tasked the job of cleaning up someone's failed attempt at what they thought was going to be a simple data acquisition system. The system has two 8 channel 12Bit 500kS/s spi ADCs. (Actually run at 20kS/s per channel for a total system throughput of 3.84Mb/s + overhead) An embedded Linux controller (Raspberry Pi) interfaces with t
Hi, i want to test simple RF Communication between 2 NRF's Module so i have just created a small setup with soft spi driver and some basic configuration like PRIM_Rx and paypload (default length 3 bytes). Still communication is not possible between the Tx & RX so can anyone please confirm is the right way to load 3 bytes of payload from arra
I have successfully build a simple spi rs232 programmer for Atmega series which works perfectly with pony-prog. The same will work for 89sxx chips.
spi does not include any handshaking or acknowledgement as part of its protocol. However, it would be a simple matter in your design(depending an WHAT your actual design is) to have a slave respond to a command with an ACK or NAK. Basically, you would build the handshaking into your system, using spi as your medium.
Hi, got an Atmel mXT1664S1 IC (based on Atmel AVR32) with HID USB/I2C host communication. Have a customer that wants to use Serial communication protocol instead. Anyone know of a simple Atmel or other solution to try? Is there complicated code to write to make it work so data transfer is semaless as with the I2C/USB?
hello, wich kind of RTC DS1302 spi DS1307 I2C other ? LCD 4bits 2x16 , 4x20 ? direct or trough I2C ? so with 2 wires SDA,SCL you can drive LCD,EEPROM,RTC
Hello, I want to build simple Atmega16 based wav file player. I have interfaced SD card using spi communication mode. Now how can I read wav file and use the PWM outputs of Atmega16 to generate sound.
A silly idea regarding a solution outside of the predefined box you have worked yourself into. 1 - add a simple MCU to the system 2 - use ChibiOS/GFX to handle all your hd44780 fun (it's bound to be a hd44780, right :P) 3 - implement a simple spi statemachine to send high level commands to your mcu. 4 - profit 5 - stand amazed how easy that (...)
Hi I've made a simple design with a PIC18F452 and a ENC28J60. I use CCS C 4.140 and the CCS TCPIP stack. On simulation with Proteus 8 SP2, I've a problem in the MacInit () function, the check of CLKRDY bit always fail. I can see spi signals from PIC with oscillo in the reading of ESTAT reg. The strange thing is I can simulate the Expl
a simple alternative for USB communications is Microchip MCP2210. It is a translator from spi to USB and Microchip provides a driver you can use applications easily. It is the simpliest alternative I have found, and the micro is inexpensive.
Hello! Max6675 is extremely simple to use because (as far as I remember), there is no configuration at all, you just select it, read and deselect. But without your code, it's difficult to help you. - Are you sure the spi works as you widh (if you issue a read action, do you have a signal on the clock?) - Does your LCD work? Etc... Dora.
A synchronous interface without slave select can work, but doesn't deserve the name spi. The solution suggested by mrflibble promises minimal digital resource requirement.
I have something in the queue that's similar enough. STM32 with spartan-6. For fast data transfer you can use a fifo on the fpga side, and dma with fifo on the STM32 side. And if you settle for a slower datarate you can use spi.
Many solutions: Serial protocols : UART I2C spi Also, You can implement a very simple custom parallel communication using the GPIO of the MCU
If you want a spi header file for max7219 you have to write your own. Why do you feel CV header file is not sufficient for you?
how to configure spi on microcontroller? in datasheet in spi command byte definition for frame buffer acess bit4 to bit 0 are mentioned reserved what does this means? thanks....
have you looked at Microchip's spi example code for the PIC18 on
Communication between SD Card with microcontroller can use either SD Bus or spi. But, I think spi interface have more documentation on internet rather than SD Bus.
Hello, i am trying to interface two PIC18F8722 with each other using spi. I manage to get it going (one way communication) doing a simple countdown but there some problems which I could not find a solution to. here is the code for: master #include #include "spi.h" #include void main() { unsigne
I'm trying to connect my RS232 with MAX232 to my ATMega32 ( ) for ISP but I think I must be missing a component. If I'm going to do ISP, do I need something to convert the UART from RS232 to interface with spi? What would I use to do this? Is there a chip that converts UART to spi or something? Also, I found
ya you can use spi communication refer above link