Rockbox runs on the Clip v1, Clip v2, Clip and ClipZip models, and is generally stable enough to use.

The original Clip has a round scroll-wheel control, a 128x64 yellowcyan monochrome OLED display, a mini USB connector, and no microSDHC slot.

A v1 Clip has a firmware revision starting with 01, while a v2 Clip will have a firmware revision starting with 02.

The Clip has a square directional-pad control and a microSDHC slot, but retains the monochrome OLED display and mini USB connector of the original Clip.

The Clip Zip has a rectangular directional-pad control, a 96x96 full-colour OLED display and a micro USB connector, but retains the microSDHC slot of the Clip.

The SansaAMSFirmware page explains the firmware file details needed for porting of Rockbox to Sansa v2 models.

A growing collection of extracted firmware files can be found at Daniels Sansa Series v2 Firmwares.

According to the diagnostic mode of the original firmware, the display can apparently be one of two types: Visionox or WiseChip.

The Visionox display could be a Visionox M00230M00231 OLED module, the display controller is unknown.

The tuner chip is the SiLabs Si4703, which is the RDS capable brother of the SiLabs Si4702 (used in several other Sansa players).

The 363830 marking is consistent with the product codes used by Amperex Technology Limited for a battery with dimensions of 30x38x3.6mm, see for example the product page of the ATL XX3038 series.

Extrapolating the capacities from this page suggests a capacity a bit lower than 400 mAh for the 363830 battery used in the Clip.

Device-dependent hardware mappings (buttons and stuff): SansaAMSHardwareMappings.

In the HwInfo diagnostic screen in the original firmware, this can be seen as either HERMON (old) or COMBO4E (new).

On Sansa E200v2s there is an 8-pin JTAG port (see ) with probably the following pin layout.

The Clip also has 8 pins below the USB connector (on the other side of the PCB), probably this is JTAG too but has not been verified.

Done with processor idling at 240 MHz, display off, shutdown voltage at 3.3V.

After the Clip had shut down in rockbox, it would still boot up in the OF, showing 0 battery left.

The voltage vs. time curve is fairly linear down to about 3.65V, at which point the voltage starts dropping very quickly.

MSC mode defines a standard Mass Storage interface with two bulk endpoints, and MTP defines a vendor-specific protocol.

Sansa Clip Zip Background Pics