AM2434: AM243x-LP Failing module initialization

Hi Jinlong,

Which SDK version are you using?

How are you initializing the SoC? Are you using SBL or SPL flow?

Regards,

Tushar

Hi Tushar,

with this sitara chip on prototype board, it is troublesome. I performed soc initialization. But I do not always see soc initialization outputs - for gpio, it always works. After adding flash, I have to see soc initialization outputs, then I don't have the problem. 

Best regards,

Jinlong

Hi Jinlong,

I assume that you are using SBL binaries to initialize the EVM. 

Jinlong Shen said:

After adding flash, I have to see soc initialization outputs, then I don't have the problem. 

Do you mean after adding flash, the problem occurs?

Regards,

Tushar

Yes, there seems be to some subtle issues. Anyhow, I figured out how to perform soc initialization AND see the expected soc initialization outputs. Then I run application which contains lines of code as mentioned above. I am using motor control sdk and the included sdks. 

Hi Jinlong,

From my understanding, you are using SBL flow for EVM initialization and the code is getting stuck at SOC_moduleClockEnable(uint32_t moduleId, uint32_t enable); API call.

Can you please step into the API via CCS debugger and check what is the moduleId for which the code fails?

Regards,

Tushar

Hi Tushar,
I don't have access to the hardware now. The module IDs are listed in the first post of this thread.

I am not sure if there is some misunderstanding. I have two situations. 1. perform soc initialization with dev boot mode, where I don't see the outputs of soc initialization. In this case, I can then download led demo. Led works as expected. If I try to download another application (see top of this thread), all module failed as described above. 
2. I perform soc initialization and see the outputs of soc initialization in CCS. Then I can download led application. it works. I can also download the same application that involves multiple modules (see top of this thread). In this case, I don't have error message. 

I guess there is some tricky and subtle issues here. However, this is not my priority now. 

Best,
Jinlong

Hi Jinlong,

Jinlong Shen said:

In this case, I can then download led demo. Led works as expected. If I try to download another application (see top of this thread), all module failed as described above. 

Are you doing a power cycle before loading examples to the cores?

If yes, you will need to initialize the SOC every time using load_dmsc script when EVM is in NO BOOT mode.

Regards,

Tushar

Hi Tushar,

I was using Dev Boot mode. The first thing was to execute soc initialization from script console with the script adapted from

load_dmsc_hsfs.js, I need some adaptation because of using daisy chain jtag.

Most times I did not see the expected outputs of soc initialization from the second sitara in daisy chain. I then run led application and it always worked as expected. However, instead of led application, if I ran ethercat demo, which involves the modules listed on top, I then had the errors as described. 


Now I figured out how to get the expected outputs. Led application still works. EtherCAT demo application also works.


Best,
Jinlong

P.S. Since you use "No boot".Do you mean that No boot and dev boot would both work when ccs scripting is used to initialize the soc? 


Reference: software-dl.ti.com/.../EVM_SETUP_PAGE.html

Hi Tushar,
I think we are using HSFS. How can I check?
Best,
Jinlong 

Hi Jinlong,

Please refer faq-am6xx-how-to-check-if-device-type-is-hs-se-hs-fs-or-gp for details.

Regards,

Tushar