x = sampled from pins of (mtdo io0 io2)
y = sampled from pins of (sd3 sd2 sd0)
Episode MOD APK
x=0 y=don't care -> remapping
x=1 y=don't care -> uart boot (note: flash burn tools use this bootmode for burning)
x=2 y=don't care -> jump boot
x=3 y=don't care -> flash boot(note: normally we use this bootmode if image stored in spi flash)
x=4-7 y!=2 -> SDIO boot modes
Hope it would be helpful.
io0 (D3), io2 (D4), io1 (TX) should be HIGH and io15 (D8) should be LOW for the normal boot, right?
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