mmc and pic - results edaboard.com

pic 18f452, mmc, fat system, mikroc

hi there,i am currently on a project entitled digital altimeter using sd card as storage. i am writing a file (data) to mmc with pic 18f452 using fat system and mikroc as compiler. the data that i am going to write on a mmc is from the re...
Microcontrollers :: 10 Nov 2009 22:02 :: hedisurfer :: Replies: 1 :: Views: 1764

can any body tell which language is this (mmc-pic interfce)

dear all; i have found a web page about mmc-pic interfacing and fat file system can any body tell in which language is this if someone has the topic like this in english please tell http://www.cc5x.de/mmc/please advice...
Microcontrollers :: 05 Nov 2009 17:13 :: anandpv2009 :: Replies: 1 :: Views: 72

how to read data from mmc using pic microcontroller ???

hey everyone im making a mp3 player for my final year project.im using a mmc card to store the mp3 songs and a pic 18lf4550 or pic 18lf2550 to read the mp3 data and to transfer it to the audio decoder for decoding.can anyone please tell me how to int...
Microcontrollers :: 01 Oct 2009 20:22 :: angel_eyes :: Replies: 4 :: Views: 351

sd card help!!

hi guys,im starting a project on sd card. i got an example program and its working fine. i am able to write and read data from the sd card. the problem is that the data stored and read is in binary format. (eg. if i write 8 it is stored as 1000 on th...
Hobby Circuits and Small Projects Problems :: 16 Sep 2009 5:37 :: sri1234 :: Replies: 17 :: Views: 1749

pic load the main program of an sd card?

g according to the requirements of the user. for my application would be great if the pic could load the main program (. hex) of a sd card and start working. the user record the file. hex on the sd / mmc card put on ......
Microcontrollers :: 02 Sep 2009 17:29 :: lucastor4 :: Replies: 2 :: Views: 240

pen drive as a mass storage for pic microcontroller

i need information or software to access a pen drive by a pic microcontroller. in my pic basic compiler i have macros for usb, and i could make assembly code for the purpose, but i dont know usb, and the protocols to write and read information to/f...
Software Requests :: 20 Aug 2009 2:06 :: tscoffee115 :: Replies: 4 :: Views: 1603

pic18f452 interface problem

hi all ,,,,i have a pic18f452 and i want to interface it with a camera module (c328-7640 ), a mmc card and a sim306 gsm/gprs mms module ,,, the problem is i cant figure out how to connect them which pins to use from the pic ,,,,which one uses the ua...
Microcontrollers :: 23 May 2009 7:22 :: sukumar :: Replies: 1 :: Views: 300

8-bit pic mcu mail server - need advice

o know if someone did such a job before so that instead of starting from scratch i can do some development.my main idea so far is to use some wide library base compiler such as ccs c, and then use an mmc card to store the text only mess......
Microcontrollers :: 18 Feb 2009 2:53 :: N.Abdallaah :: Replies: 0 :: Views: 177

fat on mmc with just one file

hi, ive designed a hardware project to write data from a pic to an mmc card, however now i need to write the data to mmc with a fat file system. im using mikroc (freeware version) so im unable to use the fat file system commands. my project is simple...
Microcontrollers :: 26 Dec 2008 6:29 :: manish12 :: Replies: 12 :: Views: 3861

interfacing a sd/mmc card to microcontroller

hi,can anyone help me on1. how to interface a sd/mmc card to my avr- microcoontroller atmega8535?2. how to format my sd card to make it readable by my microcontroller?...
Microcontrollers :: 11 May 2008 18:04 :: S-Sohn :: Replies: 6 :: Views: 3465

pic18f and parallel flash memory (nand type)

internet, i found this application note from microchip http://www.microchip.com/stellent/idcplg?idcservice=ss_get_page&nodeid=1824&appnote=en532040but the problem is that this driver is designed for mmc and sd card !!! :|wha......
Microcontrollers :: 26 Apr 2008 22:35 :: Van der Waals :: Replies: 5 :: Views: 597

pic project

is it possible to connect sensirion sensor, nokia 3310 lcd, and mmc card in one pic?...
Microcontrollers :: 12 Mar 2008 10:21 :: dhana :: Replies: 1 :: Views: 447

looking for a memory

hi, im designing a datalogger wich store data from a converter to a sd/mmc memory and then send the data through gprs, the microcontroller that i going to use is a pic. data are sampled at 100 sps, and i think there is no time to store the data and t...
Microcontrollers :: 10 Mar 2008 21:43 :: Tulkas :: Replies: 3 :: Views: 192

how to interface a pic(16f84) to a mmc memory card

ive been searching the net have found absolutely no helpful information, if anyone has information or direction as how to interface a pic chip with a memory card, i would greatly appreciate the help.sputnik...
Microcontrollers :: 09 Feb 2008 11:34 :: snb7aug :: Replies: 1 :: Views: 609

mp3 player

i am working on an mp3 player using at89c51 microcontroller. i am using the sta013 decoder chip and cs4334 dac.i wanna know where to start from ??? i am thinking of using a flash card for storing the mp3 songs. which flash card should i use and how i...
Microcontrollers :: 02 Feb 2008 10:00 :: vietdung79 :: Replies: 11 :: Views: 1665

using at commnds how to transfer data stored in mmc card.

how to see the responce of modem when an at command is sent from microcontroller.and what set of commands are used for data tranfer from mmc. any sample code in c using modem and pic microcontroller is needed. im new to the world of microcntrollers...
Microcontrollers :: 29 Jan 2008 9:28 :: ssri :: Replies: 10 :: Views: 737

easypic4

iam contemplating buying an easypic4 will i be dissapointed ?...
Microcontrollers :: 09 Jan 2008 15:21 :: Yantob :: Replies: 43 :: Views: 4329

mmc card read block problem ?

well i have been able to get response from the read block command as 0x00 , but how do i get data token 0xfe and data block after it ... can any one send me this code..... or an idea , i am using pic18f8520 and c lang.:?:...
Microcontrollers :: 06 Dec 2007 20:16 :: esbrasil :: Replies: 4 :: Views: 743

a jpeg file in mmc

hi all, i am trying to interface a mmc card with my controller and write a jpeg file into it so that we can see the pic in mmc card in a cell phone..can any one help me with this.i am using pic18f4520.regards, kumeemb...
Microcontrollers :: 28 Nov 2007 17:24 :: kumeemb :: Replies: 3 :: Views: 285

pic asm code to interface mmc needed

hello,i need pic asm code to interface mmc....
Microcontrollers :: 06 Oct 2007 3:51 :: xorcise :: Replies: 1 :: Views: 264

pic 18f4550 + mmc + fat32

hi, first, sorry my inglish, im brasiliam and like to make one project with mmc card and pic 18f4550. i see de lib tiny-fatfs, but i don´t know why i need to make for use, i have mikroc and ccs compilers, help-me please, i only finde examples for ...
Microcontrollers :: 25 Aug 2007 23:53 :: leomecma :: Replies: 1 :: Views: 2157

how to read/write data from/to multi-media card??

dear all,need help...anyone know how2 write a c program to read out the data from mmc or write a data to mmc??? :(because im not quite familar with fat file system, i just know a bit only...how to read out a data (assume 4 mbytes data) from mmc? how ...
Microcontrollers :: 27 Jul 2007 17:16 :: dreamit :: Replies: 11 :: Views: 1668

connecting nokia mmc to pic mcu

hi guysi want to connect nokia mmc to mic mcu and stor data on it .i use ccs c compiler. anybody can advise me how i can do this. or give me a schematic of pin conection.regards...
Microcontrollers :: 19 Mar 2007 11:08 :: alec82 :: Replies: 2 :: Views: 240

40 point gift for a project

i need a complete schematic and source code for audio recorder with microcontroller (pic, avr) that record voice on mmc with fat format...
Microcontrollers :: 30 Nov 2006 17:08 :: Joshoo :: Replies: 3 :: Views: 516

mmc filenames on lcd

hello,this is my first post, i am new to pic and c, but learnig fast so please be gentle:im looking for a code snippet in c, that wouldhelp me view the filenames on an sd/mmcone at a time, something like pressing up buttondisplay one filename, anothe...
Microcontrollers :: 24 Nov 2006 1:56 :: picnoobie :: Replies: 1 :: Views: 450

compilers etc..

hi allhere is link for the following..thx+http://www.mikroelektronika.co.yu/english/download/compilers: mikrobasic for pic mikropascal for pic mikrobasic compiler dac board scheme [50kb] examples [130kb] adc board scheme [50kb] can...
PC Programming and Interfacing :: 23 Nov 2006 17:53 :: ulaska :: Replies: 1 :: Views: 4305

sd/mmc card interface with pic18f4550

hii am currently stuggeling to get my sd card to interface with my pic18f4550. i keep on getting a error in hyperterminal: test mmc driver mmc init fault start...i am using ccs compiler and interf...
Microcontrollers :: 24 Sep 2006 19:16 :: jaime :: Replies: 1 :: Views: 4083

interfacing mmc with pic 16f876

hi i am new work with mmc and pic can any one help me how can i interact with an mmc/sd and how to handle the file system......reply me at genious_anderson@yahoo.com...
Microcontrollers :: 10 Aug 2006 14:30 :: gidimiz :: Replies: 2 :: Views: 570

how to use pc ram in a circuit?

hi all.do you know how to use pc ram in a circuit.for example, i have a 256m ram and i want to use it in my pic based circuit.thanks....
Microcontrollers :: 24 Jun 2006 23:25 :: Beowolf :: Replies: 1 :: Views: 339

pic18f2550 sd/mmc card

i am using a pic18f2550 to interface with a sd/mmc card. my system needs to be able to use high capacity cards (1gb+) and must also allow them to be interfaced with a windows system. the fat16 file system can reference a maximum of 32mb if 512byte bl...
Microcontrollers :: 23 Jun 2006 7:24 :: yousafzai :: Replies: 2 :: Views: 894

help in datalogger design

i am making a new datalogger based on compactflash. time before, i made one and i have a trouble with some cards, i cant to access them correctly, i had to insert the card with power supply (of all system) switched off and then switch it on. the que...
Microcontrollers :: 08 May 2006 14:27 :: yogi :: Replies: 4 :: Views: 231

mmc busy

hi, im using mmc in a dattalogger for 8 months and i have used a lot of different cards and i havent any problem. im using actually 1gbyte cards and today i have bought a new one. with this new card i have the problem, the card is initialized correc...
Microcontrollers :: 23 Mar 2006 18:50 :: latecomer :: Replies: 2 :: Views: 207

help needed in interfacing sd card to pic16f877

hi, i am trying to interface a sd card to pic16f877 microcontroller. the purpose is to develop a datalogger.( there would be a sensor that would be interface to the pic and the sensor readings would be recorded onto the sd card). the readings st...
Microcontrollers :: 26 Feb 2006 1:05 :: mgf :: Replies: 2 :: Views: 1002

pic to mmc

anyone can show me the program for storing data into mmc card in mikrobasic???or example of code???thank...
Microcontrollers :: 19 Feb 2006 15:18 :: Davood Amerion :: Replies: 5 :: Views: 615

pic-mmc-vb

can anyone give some example to me how to write a program to receive data from lm35dz and store it into mmc then communicate with pc by rs-232 and display the result in microsoft excel?...
Hobby Circuits and Small Projects Problems :: 16 Feb 2006 7:56 :: Slayerza :: Replies: 2 :: Views: 270

help needed in interfacing 8051 microcontroller to a sd card

hi, i am working on sensors, and my project consists of collecting the datas real time from the sensors and storing them in a sd card. i do not have prior knowledge of working in this field. i would be very grateful, if someone were to guide me in ...
Robotics and Automatics Forum :: 24 Jan 2006 9:13 :: vinash :: Replies: 4 :: Views: 4533

bluetooth communication help

my lastest project is an ambitious one. i plan to build my own mp3 player for use in my car. the pic will read the mp3 files from an mmc card and send the data to the mp3 decoder chip. i plan to have a bluetooth link to my pc so that i can upload son...
RF, Microwave, Antennas and Optics :: 25 Nov 2005 11:37 :: alanphydenics :: Replies: 1 :: Views: 183

adc interrupt every 10ms , 18f452 to mmc using mikroc

im trying to write data to an mmc based on values obtained by the adc. the adc should sample data and save the value at a frequency of 200hz, based on a 10mhz crystal running on hs mode. ive pretty much figured out the mmc write and read using the mi...
Microcontrollers :: 31 Oct 2005 1:25 :: kar2on :: Replies: 7 :: Views: 4839

mmc timing

i have a system composed by a mmc and a pic. every 5 seconds, pic writes into mmc two sectors. the first 30 minutes, the duration of de mmc writes is less than 20 msec, but later this time is incremented, 24 hours later this time can be 60 msec. is...
Microcontrollers :: 28 Oct 2005 7:59 :: leotim :: Replies: 3 :: Views: 240

mmc interfacing with pic

hi whenever i am sending some command to mmc in spi mode it is not giving proper reponse as well as i am not able to understand that how to write data in fat file format pls help me...
Microcontrollers :: 24 Aug 2005 8:49 :: sadashiv_sm :: Replies: 2 :: Views: 405

create file in mmc

i am using fat16 system to create file in mmc with pic.writing file name, attribute,time ,date,size ,first clusterhigh ,firstcluster low ok but when i open the file i cant open.i think something is missing.please help me added after 54 minutes: i ca...
Microcontrollers :: 18 Aug 2005 16:47 :: babybird :: Replies: 13 :: Views: 747

save audio file on eeprom

i want ot save an audio clip on eeprom and play back using pic mcu for 2 to 33 minutes. please help if somebody has done a project like this......
Microcontrollers :: 11 Aug 2005 3:17 :: aldevan :: Replies: 5 :: Views: 573

about mmc card read/write

dear all, i developing pic 18f8720 project use mmc with hardware spi function in mcu interface, i had successfully to do reset and initialize the mmc and read ocr, csd register ok, and may be read-singlebolck(cmd17) ok (status return ok but dont kno...
Microcontrollers :: 28 Jun 2005 12:32 :: conkhicon :: Replies: 5 :: Views: 642

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watchdog and pic

i have made a datalogger with pic and mmc/sd card, sometimes the card doesnt respond correctly and the system stops. the card is changed every 4 month and during this time i dont know nothing about datalogger, if the system stop measure i can loss l...
Microcontrollers :: 27 May 2005 17:55 :: VVV :: Replies: 7 :: Views: 375

fat16 and fat32 with sd card , mmc

onmmc, sd card file structure, does anyone know the content of fat16 and fat32 ?...
PLD, SPLD, GAL, CPLD, FPGA Design :: 04 Apr 2005 7:20 :: sadashiv_sm :: Replies: 1 :: Views: 582

pull high mmc dataline

hi,do anyone know do i need to pull high my do and di and so do the clk and cs line for the mmc? i want to operate in spi mode and my vdd is 3.3v.i do before pull high the do,di and cs line( external pull high) but i realize that the do line is alway...
Microcontrollers :: 06 Aug 2004 15:32 :: checkmate :: Replies: 1 :: Views: 252

mmc interface problem.

with the help of this forum,i try to write my code interface with the mmc.currently im using renesas chip m16c26, i write my code in c.but now i face a problem, i realize tht my program will stop at the part inside the mmcwritedata, when im waiting t...
Microcontrollers :: 21 Jul 2004 10:14 :: Paul_Sh :: Replies: 4 :: Views: 561

pic <30 years>8051

hello all,i was wondering if learning to program pics and 8051s still pays off when your thirty years old.yes sure, youre never to old to learn and certainly not when making a hobby out of this (i have other hobbies) but i really want to achieve some...
Embedded Systems and Real-Time OS :: 01 May 2004 14:18 :: dacadc :: Replies: 11 :: Views: 2503

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