MCU-PLUS-SDK-AM243X: AM2434-LP

Hello Pratik,

Thanks for reaching out to Texas Instruments E2E support forum.

Pratik Kaul said:

I have made a small change in the tinyusb section of the mcu_plus_sdk (version 09.01.00.41)

Can you please tell us what changes you made?

Pratik Kaul said:

makefile:155: recipe for target 'EVM_FIRMWARE.out' failed
error #10056: symbol "_DebugP_log" redefined: first defined in "C:/ti/mcu_plus_sdk_am243x_09_01_00_41/source/kernel/nortos/lib/nortos.am243x.r5f.ti-arm-clang.release.lib<DebugP_nortos.obj>"; redefined in "C:/ti/mcu_plus_sdk_am243x_09_01_00_41/source/usb/tinyusb/lib/usbd_tusb_cdc_nortos.am243x.r5f.ti-arm-clang.release.lib<dcd.obj>"
error #10010: errors encountered during linking; "EVM_FIRMWARE.out" not built

Also from the above error log, I can see that the function _DebugP_log() is redefined in the usbd_tusb_cdc_nortos lib(i.e may be in dcd.c file).

Regards,

Tushar

Hello Tushar, 
The changes i made in the tinyusb library were in the buffer size used by the cdc driver so that i can have a more efficient usb transfer, the default size of the packet and the rx, tx buffer is 512 bytes, i wanted to change that to 1024 bytes (which i have already done in an older verison of the sdk (08.03.00.18) ). After this change i tried to comile the library but the above errors started showing up. 

I have made a change here (cdc_device.c) as well changed the 

Hello Pratik,

I have tried to build the libraries after doing the above mentioned changes. I am able to build the libraries without any error.

Can you please provide all the file which you changed, so that I can reproduce the issue at my end?

Please find the below screenshot.

Thanks & Regards,

Tushar

Hello Tushar these are the changes i have made, 

enum
{
BULK_PACKET_SIZE = (TUD_OPT_HIGH_SPEED ? 1024 : 64)
};
 in file cdc_device.c

#ifndef CFG_TUD_CDC_EP_BUFSIZE
#define CFG_TUD_CDC_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 8192 : 64)
#endif

in file cdc_device.h

#ifndef TUP_DCD_ENDPOINT_MAX
// #warning "TUP_DCD_ENDPOINT_MAX is not defined for this MCU, default to 8"
#define TUP_DCD_ENDPOINT_MAX 8
#endif

commented out the warning in file tusb_mcu.h because it was creating errorrs in sdk compilation

Hello Pratik,

I have tried to build the libraries with above mentioned changes, but still I am not able to reproduce the issue.

Please see the below screenshot.

Regards,

Tushar

Can you suggest, how to proceed from this?

Hello Pratik,

Can you please search for _DebugP_log() this API inside the SDK's root directory and ensure that it is not redefined anywhere else?

Regards,

Tushar

Hello Tushar, 

I can see that it is defined in two different libs 

Hello Pratik,

Pratik Kaul said:

I can see that it is defined in two different libs 

Thanks for sharing the details above. 

Can you please share the dcd.c file located at path ${MCU+SDK}\source\usb\tinyusb\portable\am64x_am243x\dcd.c?

Regards,

Tushar

Hello Pratik,

Can you please also confirm are you able to build the libraries after removing the above changes?

Regards,

Tushar