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Need help about tms320c6713, too high current!

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shishiker

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I've designed a signal acquisiton and processing system based on DSP(tms320c6713) and FPGA(Altera cyclone). When the circuit is powered, the total current is 0.55A though there is no program running neither in FPGA nor in DSP. The other devices, such as A/D, SDRAM and FLASH, do not work, just powered. WHY the current is so high?

Further more, when a simple program is runing in FPGA, the total current is 0.82A~0.83A; when a simple program is runing in DSP, the total current is 0.72A~0.73A.

Can you help me? THANKS!
 

Did you stop the core by proper programming of PLL?

Otherwise the core will be supplied by clock causing high power consuption.

Check the same for peripherals.
 

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