Hello all,
I'm trying to figure out the test points on the Lyra Ultra board. The schematic refers to TP6 & TP7 (for setting maskrom) but there's no indication of where they are located on the board & no silkscreen markings. I think its quite likely they are the two points side by side on the underside of the board beneath the actual RK3506B. Can anyone confirm please?
Thanks,
Owen
Lyra Ultra - Test point locations?
Referring to https://wiki.luckfox.com/Luckfox-Lyra/Image-flashing, the shorting points marked on the Luckfox Lyra Ultra are TP6 and TP7. Shorting the clock pin of the storage chip to GND (so that the RK3506B cannot detect any storage medium) or shorting SARADC_IN0 to GND will both force the RK3506B to enter Maskrom mode.
Thanks