MSP432P401R: How to get rid of ULP4.1 advices?

Cristian Monea

Part Number: MSP432P401R

Hello! I'm getting this message for every port of the controller:

#10372-D (ULP 4.1) Detected uninitialized Port XXX in this project. Recommend initializing all unused ports to eliminate wasted current consumption on unused pins.

although I've configured the port. I've tried this:

MAP_GPIO_setAsOutputPin(GPIO_PORT_P1, PIN_ALL8);
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P1, PIN_ALL8);

and the remedy from the wiki page.

Can someone tell me how to configure the port so that these ULP advices will disappear?

over 6 years ago

0 Bob Landers over 6 years ago

TI__Expert 8510 points

This advice is talking about about all the OTHER ports, not just P1 (P2 and up). The attached code shows how to terminate these other ports. In the code section below, both individual ports (P1,P2, etc) and port-pairs (PA=P1+P2,PB=P3+P4, etc) are used to minimize the number of instructions. Since you are using P1 already, the first function call references P2. The remaining ports are terminated by referencing their respective Port-Pairs.

/* Terminating all remaining pins to minimize power consumption. This is
done by register accesses for simplicity and to minimize branching API
calls */
MAP_GPIO_setAsOutputPin(GPIO_PORT_P2, PIN_ALL8);
MAP_GPIO_setAsOutputPin(GPIO_PORT_PB, PIN_ALL16);
MAP_GPIO_setAsOutputPin(GPIO_PORT_PC, PIN_ALL16);
MAP_GPIO_setAsOutputPin(GPIO_PORT_PD, PIN_ALL16);
MAP_GPIO_setAsOutputPin(GPIO_PORT_PE, PIN_ALL16);
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P2, PIN_ALL8);
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PB, PIN_ALL16);
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PC, PIN_ALL16);
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PD, PIN_ALL16);
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PE, PIN_ALL16);

Regards,

Bob

0 Cristian Monea over 6 years ago in reply to Bob Landers

Expert 1795 points

Thank you for the answer, but I still get the ULP advices. I know that the ports are initialized correctly, but I want for ULP to know this also, so that it will not show the advices anymore.

E.g., if I use MAP_PCM_gotoLPM0() I get: (ULP 1.1) Detected no uses of low power mode state changing instructions. But if I use __sleep() it will not show the advice. I think this is the case with the GPIO ports.

0 Bob Landers over 6 years ago in reply to Cristian Monea

TI__Expert 8510 points

OK. Looks like we may have some issues in the ULP rules deck. I'll follow up on this lead.
-Bob

0 Cristian Monea over 6 years ago in reply to Bob Landers

Expert 1795 points

Please check this issue and also have a look on the low power mode advice rules (as described in my example).

0 Bob Landers over 6 years ago in reply to Cristian Monea

TI__Expert 8510 points

Cristian,
Early feedback from my experts suggests that the rules may not be seeing the Driverlib calls. I'm working on confirming this.
-Bob

0 Cristian Monea over 6 years ago in reply to Bob Landers

Expert 1795 points

Please do. I hope you will correct this.

0 Cristian Monea over 6 years ago in reply to Bob Landers

Expert 1795 points

Hi! Did you manage to find out if the rules do not see the Driverlib calls?

0 Bob Landers over 6 years ago in reply to Cristian Monea

TI__Expert 8510 points

Cristian,

I was able to confirm that the rules are supposed to see Driverlib calls. You can select which rules you see by going into the project properties, under Build-> MSP432 Compiler-> ULP Advisor as shown below, and selecting the rules you want to see.

0 Cristian Monea over 6 years ago in reply to Bob Landers

Expert 1795 points

Ok. Can we find out why it does not recognize my DriverLib calls (specifically ULP1.1 and ULP 4.1)?

0 Cristian Monea over 6 years ago in reply to Bob Landers

Expert 1795 points

Hi,

Do you have any updates on this issue. I've used the DriverLib calls indicated in the previous message, but it still gives me the advices. It does not see the DriverLib calls.

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MSP432P401R: How to get rid of ULP4.1 advices?