TSW1400EVM: cant download firmware

Charles JIN

Prodigy 10 points

Part Number: TSW1400EVM
Other Parts Discussed in Thread: AFE5818,

AFE5818 EVM and TSW1400 EVM, now cannot dowload firmware!

the LEDs on TSW1400 only flah once. it is likely that downloading is not successful.

4 months ago

0 Charles JIN 4 months ago

Prodigy 10 points

WHEN DOWNLOAD IS END, THE CURRENT OF 1400EVM IS CHANGED FROM 0.37 TO 0.55, THERE SHOUD BE SOME CODE IN THE FPGA,RIGHT?
ANOTHER PHENOMENON: THE CURRENT OF AFE5818 EVM IS CHANGING FROM 1.24--1.34A WHILE NOTHING TO DO.

+1 Chase W 4 months ago in reply to Charles JIN

TI__Expert 8760 points

Hi Charles,

What is the compliance limt on the TSW1400EVM power supply? Try to increase the compliance limit to 4A as during the firmware downloading process, there are transients which may spike the power supply current to above 3A.

Regards, Chase

+1 Charles JIN 4 months ago in reply to Chase W

Prodigy 10 points

the power supply' current limit is 3A. but last time the same power supply, the download is ok.

Thank you, I'll try 4A tomorrow.

0 Charles JIN 4 months ago in reply to Charles JIN

Prodigy 10 points

Hi Chase,

thanks a million! t is really a problem of insufficient current. Already solved. thank you again!

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TSW1400EVM: cant download firmware