CCS/CC2640R2F: how to use SSI to send and receive command with cc2640 ROM bootloader?

user346622

Prodigy 10 points

Part Number: CC2640R2F

Tool/software: Code Composer Studio

Hi,

I need use SSI to communicate with CC2640R2F's ROM bootloader.

When system power-on, I send dummy-write byte to CC2640R2F ROM bootloader, then wait some time, to send PING Command.

I can't get any response single from ROM Bootloader's TX pin.

Thanks

over 6 years ago

0 Toby Pan over 6 years ago

TI__Mastermind 28290 points

Hi,

According to technical reference manual (http://www.ti.com/lit/ug/swcu117h/swcu117h.pdf) section 8.1.2:

Before sending data through SSI, you need to apply the right signal level to the right IO pin upon reset (both the signal level and pin are configurable). Then you must deassert that IO pin’s signal before sending data through SSI.

The post https://e2e.ti.com/support/wireless_connectivity/bluetooth_low_energy/f/538/t/485976 explains the differences of using bootloader on development kits with pre-programmed software and parts shipped on reels.

Regards,

Toby

Other wireless

Other wireless technologies forum

CCS/CC2640R2F: how to use SSI to send and receive command with cc2640 ROM bootloader?