NEW: Learning electronics? Ask your questions on the new Electronics Questions & Answers site hosted by CircuitLab.
Microcontroller Programming » on flash FILE i/o
April 02, 2010 by sharadgupta7 |
I believe that when i write my program to the micro-controller memory, its the flash memory it goes and sits on. I don't know what is there by default in EEPROM memory say the micro-controller which i received in the box from nerdkits. My question is : Is it possible to say store a very small file say a.txt (e.g. contains 10 chars only) and read it from my flash program. The other question is in what ways can i use EEPROM. how can i read/write to it? Is it advisable?? Thanks |
---|---|
April 02, 2010 by sharadgupta7 |
Just out of curiosity, i installed AVR studio 4. One thing which is beating me completely is the AVR programmer. It asks me to select from a list which goes like AVR One STK600 QT600 STK500 JTAGIC mk11 AVR Dragon JTAG ICE and many more What are these? Which one should i select for my nerdkit microcontroller? Please help. |
April 02, 2010 by Rick_S |
Yes you can. The ATMEGA168 has 512 bytes of EEPROM available. It is a perfect place to store small strings of text. To use the eeprom, you have to include eeprom.h like this:
Simply place that line at the top of your program with your other includes. Then you use...
To write a byte in eeprom. Where in this example, the zero would represent the location in the eeprom and the 234 would represent the value stored there. Use...
To read a byte from eeprom. Where, in this example, the unsigned int chek_eep would receive the value read from memory location zero. That's about the extent of my limited knowledge. Hope this helps, Rick |
April 13, 2010 by BobaMosfet |
It's asking you what ISP to talk to the MCU with. If you don't have a supported ISP, then AVR Studio won't help you. BM |
April 14, 2010 by JKITSON |
Rick Thanks for your post.... I have been trying to include a calibration routine on the "TRACTOR PULL SLED MONITOR". I need to be able to adjust one variable in my program after the ATmega 128 is installed in the field... Wow thanks again Jim |
April 18, 2010 by treymd |
On AVR studio and the part where it asks for a programmer... I am kinda new at AVR studio myself but I have encountered 2 places where that happens. the first is when you are emulating, I have the AVRISP MKII which I do not believe is capable of any debugging in system , and that is why I believe it does not show up in the emulator list. However it DOES show up in the programming list when I go to write the bootloader and program the fuses on a real uC. |
Please log in to post a reply.
Did you know that you need to think about wires differently when you're transmitting signals more than a few inches? Learn more...
|