Update co-processor FW via USART

[boaz]

Posted on January 11, 2015 at 10:59

This is probably a too-broad question, but here goes:

I have a system where a master MCU (STM32F103) communicates with another MCU (TI CC2540) via UART. The master can be connected to a PC via USB.The task at hand is to upgrade the firmware running on the CC2540 chip, via the UART interface.What is the best way to tackle this?Preliminary ideas:

• Implement the full Serial-Bootloader protocol defined by TI on the master.
• Implement a USB-UART bridge in the master, and relay to the TI chip

Thanks, 

Boaz #dfu #usart

[AvaTar]

Posted on January 11, 2015 at 20:21

Preliminary ideas:

• Implement the full Serial-Bootloader protocol defined by TI on the master.
• Implement a USB-UART bridge in the master, and relay to the TI chip

Or implement a custom bootloader on the TI chip, supporting your prefered protocol.