TMS320C5515 MDK Question

Mateusz Kowalski

Other Parts Discussed in Thread: TMS320C5515

Hi,

I'm using TMS320C5515 MDK Pulse oximeter. I've found out something I can't explain while testing board with oscilloscope. Could someone tell me what is this break in LEDs work (marked with red circles)? It occurs every 2 seconds for around 30 miliseconds.

Best regards,

Matt

over 10 years ago

0 Lalindra Jayatilleke over 10 years ago

TI__Mastermind 30365 points

Mateusz,

Please see page 6 of the MDK TRM. Its explains the timing of the LEDs. Hope this helps.

http://www.ti.com/lit/an/sprab37a/sprab37a.pdf

Also note, unfortunately this MDK kit has been discontinued a while back, and there is no subject matter expertise remaining to help on this hardware/software offering.

Lali

0 Mateusz Kowalski over 10 years ago in reply to Lalindra Jayatilleke

Prodigy 90 points

Thanks for reply,

Unfortunately it doesn't help. Switching occurs every 2 ms, obviously there is a gap between switches, but it's surely less than 30 ms I've mentioned earlier. And during that gap between LEDs switch, ADC don't read any samples. During this 30 ms gap I've problem with, ADC still acquire samples.

Regards,

Matt

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TMS320C5515 MDK Question