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Hardware Reset
Added by Craig Little over 11 years ago
Hi There,
Is there a pin on the MityDSP-L138F processor board FPGA which is attached to a
dedicated power-on/hardware reset source which can be used to initialise/reset registers?
Kind regards,
Steven Bremner.
When there is a power on reset, the FPGA will be re-initialized (the program pin is pulled low) and will require reprogramming.
Are you looking for an additional pin that may be used to reset just the FPGA?
-Mike
Hi Mike,
In effect yes. I was wondering if the device/circuit which drives the reset pin of the OMAP processor is also
connected to the FPGA and if yes, which pin.
Regards,
Steven.
On the MityDSP-L138F, RESET_IN pin is fed into a TPS3808G33DBVR reset monitor circuit. It is not connected to the FPGA or the OMAP-L138 directly. The output RESET of the TPS3808 is fed to the RESET pin on the OMAP-L138. The OMAP-L138 RESETOUT# signal (ball T17) is connected via a transistor (Q1 on clip of the schematic below) to the PROGRAM pin on the FPGA.
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