Rockbox Ports are now being developed for various digital audio players!
I just read in the data sheet that a diode in series with the VCC backup should NOT be used or improper operation will result.
The data sheet also stated that the supply voltage MUST be held between 1.3 and 3.7 volts, so I will choose either the resistor or a small lithium button cell.
VBACKUPConnection for a Secondary Power Supply. For the 1.8V and 3V devices, VBACKUP must be held between1.3V and 3.7V for proper operation. Diodes placed in series between the supply and the input pin mayresult in improper operation. VBACKUP can be as high as 5.5V on the 3.3V device.
I just received a couple of the RTC chips and hope to do the mod later this week.
The soldering turned out to be fairly difficult. I think I need even smaller gauge wire than I am using now. I would prefer a gauge so small that moving the wires would not put any stress on any solder points. The wire I am using now is about the same size as the chip leads and is solid.
ACK I didn't notice that I needed to uncomment those two lines, clock is working, and as soon as I sodder the alarm button on, I can test that! Thanks A Lot!!!
Whenever I hook it up it starts the last song and play/pauses it forever. I have a patched firmware with both of those two lines uncommented, so I thought that it took care of that. Any ideas?
I finally had success with the mod!
Quote from: IpaqMan on December 23, 2006, 04:03:18 PMI finally had success with the mod! Well done. If you don't mind I will transfer some of your experiences to the wiki (when the site is back up).
Well, did some further testing and the clock is working great, tested the clock plugin and scrobbler and such, working great. The one caveat is that the alarm isn't working in any way. Right now I just have that wire going nowhere. Whenever I hook it up it starts the last song and play/pauses it forever. I have a patched firmware with both of those two lines uncommented, so I thought that it took care of that. Any ideas?
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