Looking for a low cost programable microcontroller to handle an array of 32 lights with atleast 8k ram and rom. chip speed is not important. It needs to be uploadable by a USB port. help is appreciated
- posted
16 years ago
recomendations for a microcontroller
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- posted
16 years ago
Have a look at Parallax's Propeller chip.
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16 years ago
Tom wrote in news:GjoBi.3803$vg.462@trnddc04:
You'll find a huge user base, thus readily available advice and help, if you go with Microchip. Atmel is also nice.
Word of advice, don't go looking for a chip with 32 DIO lines. Go with something smaller, and a DIO muliplexer.
-- Scott Reverse name to reply
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16 years ago
"grafixbmp" wrote in news: snipped-for-privacy@localhost.talkaboutelectronicequipm ent.com:
What do you mean by "uploadable" by USB? -do initial in-circuit prgramming by USB? -communicate with the already programmed chip via USB?
The microchip PIC18F4550 has USB and 16K words flash/2048byte ram, 34 I/O lines; $6.72 at Newark electronics
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You can buy a commercial programmer that runs off of a USB port to burn the initial code into it, if that's what you meant. You can program it to tx/rx over USB (once the intial code to do so has been burned into it)if that's what you meant. But you can't put it on a board, connect the board to your PC's USB port and burn the initial program into it that I know of.
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16 years ago
Me wrote in news:Xns999C8219CBD6EMe@207.115.33.102:
There are most likely USB boot loaders available for that family.
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16 years ago
Scott Seidman wrote in news:Xns999C83F44E508scottseidmanmindspri@130.133.1.4:
how do you get the bootloader into the device?
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16 years ago
Me wrote in news:Xns999D10900805DMe@207.115.17.102:
Normally with a device programmer-- many of which are USB.
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16 years ago
Scott Seidman wrote in news:Xns999D54A92A142scottseidmanmindspri@130.133.1.4:
The advantage, by the way, is that once the bootloader is taken care of, you can reprogram the device without development tools--or in the field--or by the end user, etc.
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16 years ago
Scott Seidman wrote in news:Xns999D54E0FB91Escottseidmanmindspri@130.133.1.4:
I agree.
I just wanted the original poster to understand that you can't get a compiler, write some code to do something wonderful, buy a new PIC, "put it on a board, connect the board to your PC's USB port and burn the initial program into it"
it requires some programming hardware to get the process started.
whether that programming hardware loads the wonderful program code or a bootloader is up to the original poster.