4/3/2024 0 Comments Stm32 dfu driver windows 10![]() Often the dfu mode a) cannot validate the existing image, b) requires special pins to be held high/low (not automatable in a retail store at 3am when the system has scheduled an update) and you must be able to update both the app and the bulk of the boot loaderĪll products must use the same host tool and it must be 100% scriptable (automation) Run auto flash update 24 hrs by 7days, (each cycle takes 5min) let some succeed by waiting randomly 10-15 minutes before randomly during the process open / close the relays for random periods of time 0.5 to 50 seconds intent is to crash the flash update process, simulate power failure and/or host crash, or a loose cable.Ĭost limitations: your image is < 300k (actual is 290k) the flash size is 384k, leaves about 60k for flash loader you will not add external flash like spi or i2c to save code into. ![]() Test will take 7x24 hours (nonstop) success is defined as the unit is 100% functional at end of week. ![]() Setup: use two mechanical relays, one in series with the USB 5V (red/black)the other in series with the USB data signals (white green wires) when open it is as if the cable was unplugged. and it must be done unattended automatically.Īlso if the update fails the device/system must auto recover.Ĭustomer requirement: automated flash update 100% robust purely hands off full device recovery on error of any reasonable type Related sub-reddits:Įxample: you sell barcode scanners to retail companies like CVS or WALGREENS (two very big pharmacies in the USA) or Krogar (grocery) the cash registers are ulra locked down and drivers are a pain to install if not impossible due to lockdown systems when you need to flash the device ot must work every time.
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