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Hello,
I have been trying to update an older product with release fw on its BSL. I am not well-versed on how a bootstrap loader is made, so I have resorted to using Uniflash and am programming this with a FT232RL USB to UART board. When I load the firmware I get the following:
I'm not sure why [FF] is received and not [90], but I figured since Uniflash is more ubiquitous than specialized it was bound to not work. I was wondering if someone could help guide me on next steps, as I am not sure what documents apply or if there are any existing BSL's already made for this.
Thanks!
This was exactly what I needed, the only things I had changed were:
Small note with the f1471, the setup is as follows:
{FT232} {F1471}
DTR RST/NMI
RTS TCK - Since there isn't a TEST pin.
RXD BSL Tx (P1.1)
TXD BSL Rx (P2.2)
GND GND
VCC VCC - Disconnected since board had its own power.
Thank you so much!
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