Hello, I am wanting to do a firmware upgrade on a STM32H7 processor through a USB connected to another microprocessor(Such as an Eval board). Are there any examples or libraries for firmware that will run on the Eval board which will upgrade the STM32H7?

[Tesla DeLorean]

Not sure there is a DFU HOST, but there is a DEVICE

STM32Cube_FW_H7_V1.8.0\Projects\STM32H743I-EVAL\Applications\USB_Device\DFU_Standalone

You could perhaps have the donor device be an MSC DEVICE, and use the FW UPGRADE firm READ file/data content that way.

STM32Cube_FW_H7_V1.8.0\Projects\STM32H743I-EVAL\Applications\USB_Device\MSC_Standalone

STM32Cube_FW_H7_V1.8.0\Projects\STM32H743I-EVAL\Applications\USB_Host\FWupgrade_Standalone