Cowon iAudio 7 Info

Hardware Details

Comes in 4/8/16Gb models (Samsung NAND parts)

See it ripped apart here: http://www.imp3.net/articles/3/2007_09/14965_2.html

Download a recent firmware here: http://www.cowonglobal.com/download/Firmware/iaudio7/1_17/I7_FW_1.17.zip

Telechips TCC771L? based, ARM946E?-S core, with built-in 24-bit audio codec

Sanyo LV24020 tuner

PCF50606 chip (also found in iriver h300)

ATA2501 is used to drive sensor buttons

LW052A? Dual 4-channel analog multiplexer/ demultiplexer (also found in iriver h300)

160x128 TFT LCD at a claimed 18bit depth. Appears to be the Renesas HD66789R?, as used in iriver h300 and other Rockbox-supported devices.

NAND flash - Samsung K9HBG08U1M? (4GB model), K9HCG08U1M? (8GB model)

SDRAM - K4M28163PH?

Firmware format

The iAudio7 uses the standard Telechips firmware format - see TelechipsInfo

GPIO ports

GPIOA

GPIOA0	Asserted when USB is inserted
GPIOA1	Cleared when hold switch is enabled
GPIOA2	cleared when On/Off pressed
GPIOA10	Used by LCD control interface
GPIOA15	May be LCD reset?

GPIOB

GPIOB10	i2c data (SDA)
GPIOB11	i2c clock (SCL

GPIOD

GPIOD1

LCD backlight on

GPIOE

GPIOD3

Speaker

ADCs

• ADC0 provides an indication of the keypad state for the 'M', '-' and '+' buttons.

USB Boot Mode

The iAudio7 has a USB boot mode, you can enter it by holding down the 'mode' button while plugging in the USB connector. The Vendor/Product id changes to a TCC specific pair (Vendor=140e ProdID=b021), it is then possible to upload code to the device via tcctool (source available in svn tree: http://svn.rockbox.org/viewvc.cgi/trunk/utils/tcctool/ ).

Flashing

The OF does the flashing, so a bad flash will ruin the player until we figure out how to do the USB boot mode properly.