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i am doing project on biometric module. using ATMEGA328.
i have decided my controller will communicate with biometric module through software serial port (57600 baud rate) and send updates on PC using h/w serial port.
My question is...
will atmega328 can communicate on s/w serial port with...
i need bootloader for ATMEGA32 or atmega328 for my project.
can share me link or file or other information regarding this.
currently i am using pony programmer to download my hex file, but i want to move on bootloader due to these reasons.
1: downloading of my hex file through pony is too...
hi,
i am first time trying to use ARM processor, I have selected freescale following processor.
MK20DX256
32 bit ARM
Cortex-M4
my confusion are:
1: I don't know how to load my program in my arm processor ???
2: is their any built-in boot loader in this processor???
3: if "NO" what is the...
both capacity is different one is 1GB another is 2GB.
even problem 2GB card also initializes OK, write 512 bytes OK but when i read those written bytes i can only read 6 bytes OK and after that my 2gb card return 0x01 error token and after that it start return 0xff.......
hii,
i am keep digging and digging .......
according to specifications error code 0x01 means unknown error. i dont know why my code running perfect on 1gb sd card... i have try to different 1GB SD card and my code is working ok on both of these.
but not on 2GB.
- - - Updated - - -
here is my...
hi,
i am trying to interface SD card (not in fat format on read write bytes).I have successfully interface 1GB SD card read and write option both my code work properly.
But when i try my same code with 2GB SD card i can write my data on it successfully (i have checked through HxD softwear) but...
Hi have done a code for 4gb sd card. which gives all ok status like after initialization of sd card, after sector write (512 bytes) and sector read (reading 512 bytes)command.although it gives ok status for all read command But on sector read sd card out puts always 0xFF. and nothing is saved on...
Useless = no results, wasted time.
interfacing SD card is complex matter.
it is better you can use someones tested ready to run code to reduce development time.
if you try to do amendments on someones code to make it your compiler or processor compatible..... it is better to write your own...
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