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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...
hi
i am working on project in which we are using EXternal RAM with controller....our main objective is to store data from serial port in RAM and then store it on micrSD card .one problm is that we have shortage of RAM as our data length is more then 4MB....plz help
HI all
i have a project to get a file from IP address (from internet) with the help of serial gprs modem that is connected with micro controller .any one have idea how to do it ??? i have to get file from internet and then store it in to the ram for further processing
thanks
HI all
i have run bootlaoder and now i have chnage my code its size is now large enough
when i compile the code it will give me error
"Routine exceed page boundaries 4096"
thans
hi
all i have some update that i have change the crystal and now it detect my device and when i run the HIDbootloader.exe it response that the device attached but when i want to load hex file it is responsing with program and verfiy failure error
Hi
we have deisgn a prject on pic18f4455 A usb communiction with PC,now we want to update our firmware in the field ,so i have download the HID bootloader hex file for 18f series ,but the problm is that PC resposnse that Your usb device is performing malfuction ,i havent change any circuit
so...
thx for replay
actullay i want in sytem programing what ever it shloud be use a USB interface is already there is there any way to program it through usb or serial
thanks
hi
i have design a board for pic18f4050/Pic18f4455 with usb interface now i want to program it through a programer .now the problem is that how could be possible that i will used it as a board and also a well as programmer too
actully i am looking for a is system programing.it should work...
hi all
i am working on usb communication project. i am using HID libray in MiockroC
i want to get a data from serial port on interupt and then want to send it in interuppt through usb ,but problem is that if i use hid write than it will send us error that hid write function is used in interupt...
if you want to program the PIC16X series and also PIC18 sereis used Mickro C it can be download easily on mickroC website.
in the help menu you have a sample code as well as circuit toooooooooo
Re: Problem in interface of USB with PIC18f4550/PIC18f4455..
i have check it with oscilloscope,the signel from the crystal is not stable the crystal value is 8Mhz some time it send 8Mhz and some time its value become 50hz or any
i am using ALL-100 universal progrmer .
Re: Problem in interface of USB with PIC18f4550/PIC18f4455..
thanks Kurenai_ryu
i have got another problm that the computer could not recognize my device. the crystal on the board could not send a stable signel, the simulation seem to be perfect but in real hardware it could not work,the...
hi
i am working on project of interfacing PIC with PC thorugh USB .i am using MickroC for it but i have some problem regarding this the computer could not rececive any data from device and after a some time it will hang and i have to restart it
any one can help me
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