-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said:
| With the 1 Ohm resistor, the PMU powers off after a minute or so. | Guess it doesn't like to share ;-) | | So it seems that stabilizing IO_3V3 alone does not solve the issue. No it wouldn't "solve the issue", but last night it reliably caused the A5 I tested it on here to boot without battery. I suspect it does it by reducing the current through Vsys enough that it defers or avoids the overcurrent detection taking it away. That A5, after getting the full backup battery, continued to do the extended fast retry stuff on Vsys, to the point where sometimes after a while it is able to spontaneously boot. It takes about 10 goes on the last try where it boots. But the number of retries is extremely random and I didn't find any clue why, I guess it is oscillation in Vsys overcurrent action behind it. This morning the backup battery on it was discharged, there is no stuttering of Vsys again, so the path through pcf50633 state machine differs as defined in the datasheet, we get push straight to SAVE and stay there a while if there is no backup battery power: if the backup battery is good we go to STANDBY instead I believe and can go to ACTIVE earlier. - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkhrJM0ACgkQOjLpvpq7dMo9AQCcCaGiC+2SjnvQIn0s/JrdfM21 qjgAn1mywbcR2XHxovPK48fl3P9nuQ9a =Eqgg -----END PGP SIGNATURE-----
