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Thread: 8051 usb interface

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  1. #1

    Default 8051 usb interface

    Hi...,

    same old 8051 rocks once again....




    just plug it in.. no need of any 3.3 voltage reference.... no need of extra high speed oscillator..blah... blah.... plug it in...

    Made by ST.. but still 8051 Core.... what else can be....

    USB 2.0 full-speed (12 Mbps)

    Main flash: 64KB, 128KB or 256KB

    2nd flash: 8KB or 32KB

    4KB or 8KB SRAM w/ battery backup
    On-chip debug via JTAG

    Fast 16-bit wide internal instruction path

    Dual-independent Flash memories for in-application programming and EEPROM emulation

    On-chip programmable logic

    Enhanced Programmable Counter Array (PCA) .... upto 5 chanel pwm

    I2C, UART, SPI and IrDA interfaces

    8-ch 10-bit ADC

    Koool piece of hardware..... compare it with 18f4550, (I didnt see any AVR with USB)...

    8051 rocks......


    Quasar
    If Hubble's law for the expansion of the universe is extrapolated to include the quasars, they would be many billion light-years away and consequently as luminous intrinsically as 1,000 galaxies combined.

  2. #2
    Administrator T-1000 vikas's Avatar
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    Old news

    one question ... who sells uPSD3400 india and at what price?

    About the avr thing ... avr had usb support loong time back. A lowend 2313/mega8 avr can support usb 1.1 ( check the avr website for details ) .

    please get facts right before making such posts .

    No uC is perfect and there are a 1000 varietys there ... but avr gives you minimum startup cost with minimal soldering .

  3. #3

    Default

    Quote Originally Posted by vikas
    one question ... who sells uPSD3400 india and at what price?
    well... will reply u soon regarding this...

    Quote Originally Posted by vikas
    About the avr thing ... avr had usb support loong time back. A lowend 2313/mega8 avr can support usb 1.1 ( check the avr website for details ) .
    ooops i am sorrry.... I wonder why simple googling wasnt revealing it.... nyway

    Quote Originally Posted by vikas
    No uC is perfect and there are a 1000 varietys there ... but avr gives you minimum startup cost with minimal soldering .
    Well.... there are 1000 varities....... for u to choose the best for ur application... let us say.... mmmh...

    u want to have a ultrahighspeed micrcontroller use 100mips from silabs
    u want to a usb host then use it from PLX
    u want to have on board data encryption use dallas
    u want to have 24 bit adc again use silabs

    all of them use same old 8051

    u have varities... u have choice......

    Quasar.....
    If Hubble's law for the expansion of the universe is extrapolated to include the quasars, they would be many billion light-years away and consequently as luminous intrinsically as 1,000 galaxies combined.

  4. #4
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    Default

    USB 2.0 full-speed (12 Mbps)
    12 Mbps is USB 1.1
    USB 2.0 supports 480 Mbps

  5. #5

    Default its full speed not high speed

    Quote Originally Posted by lhx
    12 Mbps is USB 1.1
    USB 2.0 supports 480 Mbps
    well... usb1.1 is 12 Mbps....
    But.. I have mentioned as Full speed.... Full speed means 12 Mbpsin usb 2.0.... and Only High speed means 480 Mbps........


    Quasar
    If Hubble's law for the expansion of the universe is extrapolated to include the quasars, they would be many billion light-years away and consequently as luminous intrinsically as 1,000 galaxies combined.

  6. #6
    Member Android
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    Default

    yea, but whats the use of 2.0 if you get the same speed as 1.1

  7. #7

    Default full speed.. 8 bit..

    As far as i see... there are no 8 bit genral purpose microcontroller.... providing high speed interface... correct me if i am wrong..... I think full speed is more than enough for the 8bit appication...

    But there are always need for for the high bandwidth... IEEE394b (Firewire by apple) supports whoooping 800Mbps... and 1.2 gbps is in devloment mode... to deployed soon...

    Quasar...
    If Hubble's law for the expansion of the universe is extrapolated to include the quasars, they would be many billion light-years away and consequently as luminous intrinsically as 1,000 galaxies combined.

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