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Hi , This is regarding a problem that we are facing with our board , TMS320C6416 - D6E3 (Silicon Errata version 1.1).We are performing secondary boot loading.When the board is reset via the emulator or via power on , the secondary boot loader executes as required.We are able to view the CE and the ARE control signals being issued to the Flash.But , during manual reset (push button) , the DSP hangs , and no control signals are issued ( to any of the CE spaces , even the CE1 space , which the on chip bootloader queries during boot- up).Could you please help us out at the earliest. Thanks and best regards, Ramya. Ramya Mohan Systems Engineer Accord Software & Systems Bangalore India Telephone :25350105 Ext:150 |
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Push Button reset problem with TMS320C6416
Started by ●September 16, 2004
Reply by ●September 16, 20042004-09-16
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--- ramya_m <> wrote: > But , during manual reset (push button) , the > DSP hangs , and > no control signals are issued ( to any of the CE > spaces , even the > CE1 space , which the on chip bootloader queries > during boot- > up).Could you please help us out at the earliest. hm... I may be totally wrong, but what is the state of your "boot mode" selection pins (BEA[19:18]) while you're pushing that reset button? Wojciech Rewers currently looking for a job in the UK __________________________________ |
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Reply by ●September 17, 20042004-09-17
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Ramya,
If your 'boot mode' is correct during reset, the problem may be
that your pushbutton is not properly debounced. If the DSP is "seeing"
multiple pulses of incorrect minimum width and/or excessive frequency it may
have problems. When a button switch is pushed and/or released, it is not
uncommon to see several 'noise pulses'. Your switch should go
into a circuit that will provide a single pulse that exceeds TI's min pulse
width spec [I suggest exceeding it by a factor of 2].
let us know how things work out...
mikedunn
"Wojciech Rewers (Voytek)" <w...@yahoo.com> wrote:
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