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34 Threads found on Sd Card Circuit
Hi all. I am working on a project where i need to interface SD card with SST89E516RD2 Microcontroller. My problem is that the controller works on 5V and SD card works on 3.3V. i have attached a circuit diagram, kindly request you to please let me know if the things are correct. i am supplying 3.3v to SD card using (...)
Hi guys, i have problems with interface my sd card with pic18f4520 or with pic18f46k22. I saw many things and try many codes and i did my code to using sd libraries from microchip but never put the sd card working 100%. Can someone help me? I can post the codes, versions of the programs, material, etc Dont forget, im using mplab x and th
Hello, i am implementing a simple wav player that play samples that are saved on SD card. i am using r2r 8bit DAC as problem is i get a trash sounds instead of a music. definitely i check the r2r circuit and working correctly. but i am confuse why i got a trash sounds? i actually check the output using serial communication and i
For the project I'm working on we have a student sprite that can wonder through 5 rooms and is controlled with the Keys. Oh, we're also trying to make the music be triggered based of the x and y position of the sprite (which will be tricky in itself) Can you give some details about the "sprite"? [SIZE
I am making a project where SD card has to be used to store some data. I am planning to use 8 GB SD card. I have written a code using FAT32 library and it is working fine with 2 GB SD card. I want to know whether the same code can work with 8 GB SD card and I also want to know can I use microSD card instead (...)
I am looking for a pcb to incorporate low cost mini pinhole digital camera (not cctv), with image storage capability (i.e. sd card) and linked to a pir to trigger the camera, with refresh rate around 3-5 seconds. pir's on ebay, but struggling with the rest. help pls
Thank you very much Peter.... Is it possible to use SD card together with ISP ? because I saw in circuit it shares the same pin... SCK / PB1....
Hi, I am having trouble getting MMC initialised using mmc_fat_init() function. Initialisation fails due to an unknown reason. I tried simulating it in Proteus and used LEDs to check if MMC is getting initialised. I am attaching the program config settings and ISIS file. Actually I have edited the library example to include LEDs for debugging
Hi every body several month ago I tried to read and write in a SD card memory, finally I could write and read in the SD card memory till capacity 2G but my circuit don't support SD cards with capacity more than 2G!,look below link now I
I am trying to interface MicroSd card with PIC18LF8720 and using this SD card Breakout Board I am just trying to send CMD0 command and check the response from MicroSd which is always 0xFF instead of 0x01. Thankx in advance Here is my firmware #i
You can find a lot using google Here is one for example
This is very very nice, is there some nice circuit for holter and ECG (6ch and up, 12ch will be excellent) with SD card logging ?
Hi, I am trying to write data in a memory card through MICROSD adapter for MICROSD ATMEGA32 datalogger. But with HYPERTERMINAL software the card is not getting detected. Can anyone please help me to sort out the problem. I am attaching the ISP connections and the circuit of the data logger. Please have your response. Sumanta
Hi i want to drive an IC for reading and writing from/to MMC or SD card. my IC is GL827L, i could find its datasheets but i can't find any tested circuit or schematic for it, can any one help me to can drive it correct? i attached datasheets too.
Hi, everyone, I have learnt alot about SD card interfacing and i am able to save and extract data from an SD card(in simulation). After several attempts I am also able to run it in hardware environment, but my issue is just not simple because although it runs on hardware now, it detects SD card sometimes while does not detect SD (...)
Hallow everyone! I want to make a circuit that captures photo form webcam and saves it in to a sd card after about five minute interval. I'm using the 18f8722 and max3421 chip. I can write data to sd card but the problem is that i don't know nothing about OTG. How to initialize the webcam and how to get the raw data form it ? I (...)
I want circuit schematic for interfacing micro sd card with pic18f4550 using MSD class provided in AN1003 document. Can anybody provide the circuit diagram? Thanks Regards: Sailesh
I have coding of hid+msd device with pic18f4550 but I don't have circuit schematic to interface micro sd card. I want circuit schematic. I am uploading the code. I have searched google but not found any solution. Can anybody help me? Thanks Sailesh64322
Dont use yellow color .. its not readable... which controller and do you need sd card or MMC card...
hi i am working on project in which i have to used micro sd card for both for mobile and microcontroller ,but one at a time ,my project is to get data from serial port and then write to sd card and then want to used this card for mobile tooo without pluging from the circuit and then insert to mobile plz help
I am interfacing my micro sd card with the above circuit diagram(in the attachment file). I am initializing my sd card with the following sample code, i am displaying the response in my lcd. According to the code i am expecting blank display where as it shows one. which means it is not initialized or card is not accepted. (...)
Hello! can i connect a PIC16F877A to MMC? I am using HIGH TECH C compiler. Could u help me.... I have never used a PIC. However, if I had to, I would verify that: - The supply power is compatible; - It has a SPI bus or at least 4 unused GPIO pins to emulate SPI. Then MMC or SD will connect without any trouble. Dora.
hi any body send me a footprint for sd card in orcad layout. i attached sd card circuit. plz send me immediately
My requirement are: 1. Volts: 4.2, Max current 2A, for SIM300, GPS-M90, some relays and other circuitry 2. Volts: 3.3, for SD Memory card, current consumption is minimum circuit will take power from Car battery (12V), I need another backup battery in case of main battery cutoff, circuit will automatically switch to (...)
You can interface SD card with PIC controller on SPI line. And dont be lazy, search for it, How can you directly ask for code.?? After using SPI communication, if you have any problem then post a topic.
am working on a solar data logger. the circuit reads the sun's intensity and records it on an sd-memory card. i live in Nigeria and the sun's intensity is very high during this season. i have three challenges 1) the sensor to use and how to interface it with PIC16f877a 2) how to log the data to the card 3) i how i can retrieve the data (...)
hello friends. I want make a MMC card R/W board and have a SD card socket but don't know what pins must be blank (I know that MMC have 7 pin and SD vave 9 pin). I wired the socket and take a picture from it and attached please see that and help me to resolve the problem. (I written the black texts on picture to explain my circuit if the pin (...)
Sd cards sound easy but have yet to find a simple proven circuit cards work on +3.3V supply. If the PIC also runs on +3.3V, then the circuit is just SPI with pull-ups. ...and software to do card file system for CCS compiler - . Worked from the 1st time
I am designing the SD card controller IC. which type pad should I select to connect with SD card? SD card's IO is push pull circuit. How can I select controller IC pad's drive capacity? About how many ma pad should I select? Thx
A similar project as occurred to me and its on my TO-DO list someday. I bought a bunch of 128MB MicroSD cards that came with an adapter to full-size SD. I figure that I can solder the adapter right into the circuit and use it as a socket for the MicroSDs. Most of these cards can be accessed in single bit SPI mode. (However, the high (...)
Take a look at microchip's application note on mass storage They implemented an sd card reader using a PIC18F4550. Based on this appnote and the ATA specifications you can build yourself a nice usb connected hdd. For the hdd connection you'l
Is it possible to emulate a memory device of one type using a memory device of other type and some circuit. example: is it possible to design a circuit which behaves as a memory stick but actually the data in stored in a SD card or in other words interface conversion. Thx in advance.
I dont know if you want to use a ready made file system than using this long code. If you do then Petit FAT file system is a good option usage : the example reads 512 bytes from a sector and dumps it to hyper terminal. Ive used
I´ve only got strange responses from SD/MMC when I missed a certain step. Can you describe the exact sequence you are using to issue a CMD24 and perform the write?