Overclcok AtmegaL
in [Embedded]
|
From: eeh on 29 Jan 2006 13:08 Hi, I am going to overclock Atmega16L to 12MHz. I can do that when the JTAG header is attached. However, when it is detached, the program seems to be not working. I have tried to shut down the power of the emulator and it still works when the JTAG header is attached. I do not understand why this strange case happens. Could anyone talk to me why this happens? As I need to use 3.3V, I need to use Atemga16L.
From: larwe on 29 Jan 2006 14:52 eeh wrote: > I am going to overclock Atmega16L to 12MHz. I can do that when the JTAG You are so 3L33T. RaDiCaL To THe MaX, DuDe. > it still works when the JTAG header is attached. I do not understand The JTAG might be holding down reset a bit longer than normal. Remove JTAG, power up, use wire to reset device. Does it work?
From: linnix on 29 Jan 2006 15:20 larwe wrote: > eeh wrote: > > > I am going to overclock Atmega16L to 12MHz. I can do that when the JTAG > > You are so 3L33T. RaDiCaL To THe MaX, DuDe. Yeap, considering that they are plenty of Atmega16* at 16MHz, and cheaper than 8MHz as well. If you overclock a 16MHz part to 32MHz, that might be intereresting.
From: eeh on 30 Jan 2006 00:50 > The JTAG might be holding down reset a bit longer than normal. > > Remove JTAG, power up, use wire to reset device. Does it work? I add RC at the reset pin which are 1M Ohm and 0.1uF respectively. But it has no improvement and is stll not working.
From: eeh on 30 Jan 2006 00:53
And I hot plug the USB cable after reset. |