FlashUserGet hangs in Energia sketch

Rudolph Raab

Other Parts Discussed in Thread: TM4C1294NCPDT, ENERGIA

I have a simple Energia sketch where I'm trying to read the USER registers on a TM4C1294NCPDT (on the Launchpad board) with the FlashUserGet function, but it's hanging without outputting anything.

I've included the code below.

#include "inttypes.h"
#include "driverlib/flash.h"

uint32_t* user1, *user2;

void setup()
{
	Serial.begin(19200);
}

void loop()
{
	int dammit = FlashUserGet(user1, user2);
	
	if (dammit == 0)
	{
		Serial.print("User registers: ");
		Serial.print(*user1, HEX);
		Serial.print(" and ");
		Serial.println(*user2, HEX);
	}
	else
		Serial.println("Hardware failure");

	delay(10000);
}

over 10 years ago

0 Amit Ashara over 10 years ago

TI__Guru**** 244380 points

Hello Rudolph

The FlashUserGet is a simple function that reads the value of the two registers USER_CONFIG0 and USER_CONFIG1. Can you read it with the IDE?

Regards
Amit

0 Rudolph Raab over 10 years ago in reply to Amit Ashara

Intellectual 760 points

I don't know what you mean by reading it with the IDE. I can read it with the LMFlash tool, and set it from there as well.

0 Amit Ashara over 10 years ago in reply to Rudolph Raab

TI__Guru**** 244380 points

Hello Rudolph,

Issue is with the way the FlashUserGet expects to get the pointers to update. (I don;t have Energia but with CCS I could do the same, get your issue and then resolve it). The code below is Energia equivalent of my CCS Code.

void loop()
{
int dammit = FlashUserGet(&user1, &user2);

if (dammit == 0)
{
Serial.print("User registers: ");
Serial.print(user1, HEX);
Serial.print(" and ");
Serial.println(user2, HEX);
}
else
Serial.println("Hardware failure");
delay(10000);
}

Regards
Amit