CCS/TMDX654IDKEVM: PRU LED blink example

Part Number: TMDX654IDKEVM

Tool/software: Code Composer Studio

Hello,

 I am trying to blink LED on my IDK .

I have created  CCS project for PRU of AM65x IDK as mentioned here , LAB1 

http://processors.wiki.ti.com/index.php/PRU_Training:_Hands-on_Labs#LAB_1:_Toggle_LED_with_PRU_GPO .

Here is main.c :

#include <stdint.h> // for uint32_t
volatile register uint32_t __R30;
int main(void)
{
uint32_t gpo;
while (1)
{
gpo = __R30;
gpo ^= 0xFFFF;
__R30 = gpo;
// 10 to the 8th == half-second delay
__delay_cycles(100000000);
}
}

From "debug"  button drop down I selected my project and connected to PRU0  ,it started debug session but no LED is blinking after running a program.
Is my program correct ? anything missing . Please help.

Also , How can I debug other projects from  pru-software-support-package ? any leads appreciated 

Hi Nikita, regretfully Toggle LED w/ PRU GPIO lab was created for AM335x, especifically for Beaglebone black (BBB) w/ a particular cape. In other words, this lab has some specific HW requirements. If you have a BBB you can give a try to the labs in order to get familiar, and then you can port them to AM65x.

One thing that I am pretty sure you need to take care, while porting this lab, is to modify pinmux, so that GPO signal is going to something (LED, oscilloscope, etc). 

On the other hand, this PRU-ICSS / PRU_ICSSG Getting Started Guide on TI-RTOS explain some of the OOB examples for PRU-ICSSG which are indeed more complex than AM335x PRU GPIO lab, but  they could be used as a reference. Examples are PRU-ICSS EMAC and SORTE protocols.

hope this helps,

Paula 

Thank you Paula.

I will try to modify Initialization script for pinmuxing in AM65x  . Do you have any link for AM65X PRU development ?

Hi Nikita,

Can you share what type of information you're specifically looking for?

Regards,

Melissa

Hi Melissa , I am looking for running and debugging samples from pru-software-support-package on bare metal AM65X IDK using CCS in windows 10 . as well as  running/debugging  those examples on IDk running Linux  .