IWR6843AOP: Where is information about how to format the SPI Flash

rperezti

Part Number: IWR6843AOP
Other Parts Discussed in Thread: UNIFLASH, IWR6843

We have a host MCU connected to the IWR6843AOP command UART, SOP pins, and reset. We have successfully used this host MCU to communicate with the IWR6843AOP bootloader to update the boot image of the radar device. We have followed the information in the bootloader appnote. This was prototyped with the TI mmwave EVMs connected to the external host MCU over the connectors.

The question is where can we find information on how to format the SPI Flash on a new board?

We now have custom H/W with the IWR6843 and external MCU. We want to use our MCU to replicate the Uniflash option for formatting the SPI Flash but we don't see this documented in the bootloader appnote. Please let us know where we can find more information about how to use the UART bootloader connection to format the SPI Flash on a new board.

Thanks in advance

over 4 years ago

0 Nitin Sakhuja over 4 years ago

TI__Mastermind 30405 points

Hi Ruben,

The bootloader app note lists the Erase command as shown below. As you can see from the snapshot below, Uniflash send this command in the Format SFLASH option. Additionally, this option is selected by default so the Erase command, while not mandatory, is sent prior to the file download. The external MCU can use the same sequence during File download or send this command separately using the message format given in the bootloader app note to erase the flash.