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equ
Joined: 20 May 2009
Posts: 2
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 30 Oct 2009 17:31 usb pic and wireless application |
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hi. i am planing to implement a wireless webcam for my project.
for example pic18f works as a device in usb operation mode. but it is not my device, my device is webcam, so i want to by-pass all protocols or other issues that this pic handles when it is connected to a usb. Shortly i only want to use usb connectivity of the pic. Is it possible? then, when pc sends something i will send these packets to 10 output ports parallelly as bits. i will do the reverse for packets going to pc. all these things will be done by pic. then these paralell i/o ports of the pic will be connected to an analog front end which consists of 2 channel dacs and adcs and it will be connected to a i/q transceiver. same structure will be on the webcam side. Anyone who see strange thing or can advise about my idea? Please make comments or give advices. Thanks...
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bobcat1
Joined: 10 Jul 2002
Posts: 1118
Helped: 48
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31 Oct 2009 13:11 Re: usb pic and wireless application |
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Hi
From my point of view you will need to use a stronger controller who have lot of RAM since picture need lot of ram for storage
I suggest you use on of the ARM cortex new processor (STM32,LPC17xx,SAM3Uxx)
Instead of Small low memory & low process PIC MCU
ALL the best
Bobi
The microcontroller specialist
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equ
Joined: 20 May 2009
Posts: 2
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31 Oct 2009 16:04 usb pic and wireless application |
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thanks for reply.
video format will be 160x120, 15 fps, 16 bit.
data rate is 4.6 Mbps. do you still think that i need to use a stronger controller? obviously i dont want to use a mcu other than pic because it has lots of examples and easy to use.
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