CC1352P: System_sprintf issue using float format

Adapt the K&R "itoa()" example.

When you tried the other solutions, what went wrong? Did you increase the stack value?

Hi keith,

1. Tried to applied above suggestion solution, It makes no difference,

2. Task stack size running test code is 3K. I checked stack status on ROV, It never exceeds 1K

Do you try to use sprintf to format/output float value to a string buffer and use System_sprintf to print the buffer?

Hi,

Modified test accordingly, same results.

char val[40];
System_sprintf(val,"%.2f",4.19);
System_printf("Battery level = %s\n",val);

Try the following code

char val[40];

sprintf(val,"%.2f",4.19);
System_printf(val);

Same results, No chnage.

please check val buffer :

I can see it is working on an empty project example.

Any idea why it fails on my custom project?

Can you elaborate how you create your custom project?

Did you try increasing the stack?

Hi,

yes, Increasing stack makes no difference.

Found that it fails only when XDS110 debugger is connected.

When running w/o XDS110 is works ok ( sprintf works correctly), However on debug mode ( step by step with XDS110) , result is incorrect. 

Not sure how we can help debugging this. I just tested stepping through the code with the debugger, and everything still works as expected.

I guess that since you are running on custom boards, you have done several changes to the original code examples for our LPs, and that one/several of these changes causes the problems.

Are you able to take one of the simple examples from our SDK, do the minimum of changes required to run them on your custom HW, and then test if it works as expected there or not?

Siri