CC2640 Supply Voltage Configurations

Jinlong

Other Parts Discussed in Thread: CC2640, CC2650STK

dear All:

I design my own hardware CC2640 7 ID according to TI 's reference designes CC2650EM-4XS-EXT-REG Reference Design , and use 1.8V for VDD_EB, L1 and U2 DNM, but I can't find which software or project to use, when I use the project in BLE stack , I found the project cna't run

correctly , Can someone Tell me,Thanks!

over 10 years ago

0 YiKai Chen over 10 years ago

Guru 735685 points

Do you have CC2650DK? I would suggest you make sure your BLE stack example running well on CC2650DK first and then test it on your own PCB.

0 Jinlong over 10 years ago in reply to YiKai Chen

Intellectual 520 points

Yikai：
I Had Runned on CC2650STK, The result is same . As VDD_EB is 1.8V, VDDS-DCDC and DCDC-SW are connect to ground, is there need to modify the configuration about dcdc in stack?

0 YiKai Chen over 10 years ago in reply to Jinlong

Guru 735685 points

Do you mean that you have problem running BLE sensortag example on CC2650STK?

0 CHS over 10 years ago in reply to YiKai Chen

TI__Mastermind 18780 points

When running without the internal DCDC, the settings in ccfg.c must be configured appropriately.

0 svendbt over 10 years ago in reply to CHS

TI__Mastermind 29650 points

There is also a software fix needed when using external regulator mode with our current drivers.
Description is found here: processors.wiki.ti.com/.../CC26xxware

.:svend

0 YiKai Chen over 10 years ago in reply to svendbt

Guru 735685 points

This make sense now.

0 Jinlong over 10 years ago in reply to svendbt

Intellectual 520 points

Thanks

0 Jinlong over 10 years ago in reply to CHS

Intellectual 520 points

CHS: the link can't open.Show"Access Denied
You do not have permission to view/download this item. "

0 CHS over 10 years ago in reply to Jinlong

TI__Mastermind 18780 points

Sorry about that,

To run without the DC/DC in our example BLE applications a customer must change the default ccfg.c file as our example file will enable the DC/DC.

- Open ccfg_appBLE.c in the Startup folder of the application
- Open the included file <startup_files/ccfg.c>
- Replace all contents of ccfg_appBLE.c with the contents of startup_files/ccfg.c

The defines SET_CCFG_MODE_CONF_DCDC_ACTIVE and SET_CCFG_MODE_CONF_DCDC_RECHARGE should be changed to 0x1.

Note that customers are responsible need to remember to update this file with new versions of startup_files/ccfg.c when they upgrade to new versions of our software later.

0 Jinlong over 10 years ago in reply to CHS

Intellectual 520 points

Thanks CHS!

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CC2640 Supply Voltage Configurations