Hi everybody,
I am working on TMS570LS20216 connected to the TPS65581 power IC. I have faced a problem that have stated it in the automotive forum and got a good recommendation, but before doing that, I'd like to know your ideas as well.
And the problem is:
I wrote a simple code that just toggles one pin of the GPIO ports, it doesn’t matter which pin. Running this code causes a reset on micro through the power IC. The recommendation was to check the load currents on Micro voltage lines coming from the VDD3/5 and VDD1 of the TPS (VCCIO and VCC voltage line respectively).
In our circuit the GIOA [4] is not connected anywhere, so I commanded to toggle this pin, but the TPS again reset the micro.
for(i=1 ;i<20; i++ )
{
gioToggleBit(gioPORTA, 4); // Toggle GIO PortA Bit0
for (delay = 0; delay < 0x100000; delay++);
}
Is it true that toggling the GIO draws a high current from the VCCIO voltage pin?
I checked the VCC (VDD1) pin but checking the VCCIO (VDD3/5) is a little bit hard so I want to know your idea about it.
Thanks,
Fatemeh
