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Found 13 results

  1. am actually using an example code to write on SD card. on my MSP430FR5994 and its not working. can t someone please help me. the code looks like: #include "SPI.h" #include "pfatfs.h" #define read_buffer 400 // size (in bytes) of read buffer #define LOG_DELAY 3600 #define detect_pin 25 // sd_detect pin (P7.2) (P7.2/UCB2CLK ) #define cs_pin 31 // chip select pin (P4.0) (P4.0/A8) unsigned short int bw, br ,c ; //char buffer[1]; char buffer[read_buffer]; int result; DIR dir; FILINFO fno; // file info
  2. Hello everyone, I'm basically trying to port over Arduino's SD card library (which utilizes SPI communication) to Energia, and am starting by testing whether I am able to properly initialize the SD card or not. First, I made sure that the Arduino library worked on an AT Mega 2560 and SD card that I have (it did). I then moved on to porting the library for Energia. I changed the pin mapping and the SPI settings to work for the F5529 and so far I can prove with a logic analyzer that the SD initialization function commands the CS, SCLK, MISO, and MOSI SPI lines in the exact same manner fo
  3. I was developing a program for the EXP430FR5994LP in June 2018, using version 1.0.3 of the Energia IDE, and I'm pretty sure I was successfully able to read/write an SD card. I recently upgraded my installation to the latest version, 1.0.5, and now when I try and compile the same program I get the error: SD.h: No such file or directory referring to the line: #include <SD.h> Has the SD card support been removed from the Energia core, or am I remembering incorrectly?
  4. I have a tm4c129 board. I have installed updates form the board manager for the TIVA C so now I can upload the default examples form Energia. 1. Problem arises when I try to add custom libraries. What is the correct method to add a library? 2. I can find only MSP430 folder at location E:\..\energia-1.6.10E18\hardware\energia , I suppose all boards installed should show up in the hardware library. 3. I have included the library which I am trying to compile Error: WARNING: Category '' in library SD is not valid. Setting to 'Uncategorized' Missing 'mainta
  5. Hi frineds, Issue : I am data logging into my 1 gb sd card using given code. In my serial terminal window it shows that the data is being written in the sd card, but when i take it out from microcontroller interface and put it in the computer it shows nothing buy empty file (log.txt). Well i know one thing that can be causing this issue that is the log.txt file shows read only in my linux mint environment but still i can write anything in that file. I have attached a screen recording and screen shot file of the issue down below. Please help me... Thank you in advance...
  6. Hello, I am using example code of energia Pfatfs library named "PFatFsfileTest". This program reads "T_READ.txt" file from sd card properly. But It can't write string "Hello world" 10 times to the file "T_WRITE.txt" into sd card. Instead, it just writes only "H". I am posting the original code of file below: /*----------------------------------------------------------------------*/ /* Petit FatFs sample project for generic uC (C)ChaN, 2010 */ /*----------------------------------------------------------------------*/ /* ported to Energia */ /* copy the two files t_read.t
  7. Hello, I am working on a project in which we are using the MSP4305969 to measure temperatures and write data to an SD card. The datalogger is in a remote location, so the system needs to conserve enough power to log for a full year. In order to do this we are logging only every 15 minutes and powering everything down to a sleep mode between measurements. We use a transistor as a switch to take power away from the line of temperature sensors while the board is sleeping. That all works fine, my issue is with the SD card reader. We are using the "slot socket" for arduino https://www.amazo
  8. Hello, I have used petit FatFs library in my project and it is working great but only problem is It can not create new file it only can modify already created file. But in my project I need to create many files on runtime. where can I ger FatFs SD Host library which I can use with energia. Thanks in advance
  9. Hi, I had interface MSP430F5529 launchpad with FatFS Sd card. I was trying to store value from ADC into SD card and I found that I cannot store the value on SD Card, unless I do "sprintf" or equivalent printf of the data, only then I was able to store the value on SD card. However, sprintf is expensive command and takes more cycle then ADC output i.e some of the data is lost from ADC in doing sprintf. Is there a better alternative than sprintf or something like if I store raw value and later post process it? Any help will be highly appreciated. Thanks
  10. Hello, I have a question regarding communication between my Tiva C EK-TM4C123GXL lauchpad and a generic SD Card breakout board. Using: Energia 0101E0013 Windows 8.1 SD Library (SD_TM4C) 4 GB FujiFilm SD card I CAN get the ReadWrite demo program in the SD library to work sucessfully by wiring everything up according to the 1-page pinout diagram that came with my board for the SPI bus. Hardware wiring (SD breakout --> Launchpad): SDCS --> J2.9 / PA3 / 12 MOSI --> J2.6 / PB7 / 15 SCK --> J1.7 / PB4 / 7 MISO --> J2.7 / PB6 / 14 And th
  11. Hi All, I'm attempting to get an SD card working with the MSP430FR5969 (launchpad) and FatFS but I'm having a difficult time. Two questions: 1. Is it possible to get FatFS working with the MSP430? When I did a search of these forums I mostly saw PetitFat being used with MSP430s. Ultimately, PetitFat would be okay but I would prefer FatFS. 2. Has anyone gotten either PetitFat or FatFS working with the MSP430FR5969? If so, would you be willing to share your code or knowledge regarding it? Thank you in advance for any help, Nipun
  12. Good afternoon, I'm doing a project and I want to write the data read from my analog input on an SD card. I made the mounting of the SD as shown in this link: http://www.instructables.com/id/Cheap-DIY-SD-card-breadboard-socket/ Did the links in the Stellaris SD following this scheme: http://www.frank-zhao.com/pics/sdcardconnections.jpg Where my MISO of SD card connected to MISO (0) of the Stellaris, SD MOSI to MOSI (0) of the Stellaris, SD in SCK (0), fed it with 3.3 V, also connected to GND and CS from SD to my Pin 14, which was determined in the CS program (cs_pin). My
  13. is there any library available for reading and writing to the SD card ?
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