TMS320F28376S: Need help to create bootloader for TMS320F28374S through SCI connected through RS-485 (sn65hvd1781aqdrq1)

Benny Hill

Prodigy 20 points

Part Number: TMS320F28374S
Other Parts Discussed in Thread: C2000WARE

Hello!

Need help to create bootloader for TMS320F28374S through SCI connected through RS-485 (sn65hvd1781aqdrq1)

What software I can use for that?

What hardware to use to connect to device?

Is there any code for example? (C2000Ware)

over 2 years ago

0 Anu Biradar over 2 years ago

TI__Expert 5630 points

Hello,

The F2837xD SCI Flash kernel examples in C2000Ware, located at C2000Ware_x_xx_xx_xx > device_support > f2837xd > examples > dual > F2837xD_sci_flash_kernels can be used as a secondary SCI bootloader. There is an application note that details the flash kernel design/usage as well: https://www.ti.com/lit/an/sprabv4e/sprabv4e.pdf

I will ask the SCI expert to comment on the HW needed.

Thanks

Anu

0 Benny Hill over 2 years ago in reply to Anu Biradar

Prodigy 20 points

Hello, Anu!

Is there any news from SCI expert regarding hardware?

Best regards,

Ben

0 Anu Biradar over 2 years ago in reply to Benny Hill

TI__Expert 5630 points

Hi Benny,

Let me reach out again, I will get back in a couple of days.

Thanks

Anu

0 Vince over 2 years ago in reply to Anu Biradar

TI__Mastermind 19775 points

Hi Benny,

Please see the following sections in the SCI FAQ, within the Hardware section:

EDIT: Missing FAQ link: https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1031947/faq-my-c2000-sci-is-not-transmitting-and-or-receiving-data-correctly-how-do-i-fix-this

"Incorrect transceiver circuit (assuming that a transceiver is present)."
"Incorrect circuit in SCI-RX/TX path."

These provide some guidance on potential hardware issues that could happen, and how to avoid them.

I would also read the rest of the "Hardware Issue Symptoms and Causes" section, as it has some helpful hardware know-abouts.

Regards,

Vince

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28376S: Need help to create bootloader for TMS320F28374S through SCI connected through RS-485 (sn65hvd1781aqdrq1)