Retro Games Ltd RGL001

= Identification =

On the back of the device, the following is printed: The C64 Mini RGL001

The PCB has the following silkscreened on it: THEC64 V1.0 Retro Games Ltd 2018

Under Settings->About Tablet, you will find:
 * Build:           theC64-1.0.1-argent
 * Build Date:  02-01-2018 19:08:23

= Sunxi support =

Current status
Unknown

Manual build
You can build things for yourself by following our Manual build howto and by choosing from the configurations available below.

Sunxi/Legacy U-Boot
Use the  build target.

Mainline U-Boot
Use the  build target.

Sunxi/Legacy Kernel
Use the  file.

Mainline kernel
Use the  device-tree binary.

= Tips, Tricks, Caveats =

There is a remote button that will start FEL mode, located underneath the device manufacturer's sticker, allowing you to enter FEL without removing the cover.

FEL mode
FEL can be entered by holding the remote button or the on board button labeled UBOOT. It can also be entered using the serial console by sending "2" on boot.

Board observations
There is a button on the board marked "Recovery" however it seems to have no effect. There is are many unpopulated solder pads including an SD card slot and second DRAM chip. The resistors are also unpopulated.

= Adding a serial port (voids warranty) =



The UART is very easy to interface. It has standard 0.01" American pin spacing and is already drilled. You can use standard header pins or a JST connector.

Pins are, in order from top to bottom as per photo; GND, RX, TX, 3v3

In this photo, the customer has already added the UART pins. The board mounts upside down so the pins were placed on the reverse side to allow ease of access.

Device disassembly
There is no need to remove or damage the device manufacturer's sticker unless you wish to access the u-boot switch without disassembling the case. The four screws are located under the friction pads.

Locating the UART
The UART is immediately West of the processor and very easy to see.

= Pictures =

= Also known as =

= See also =

Manufacturer images
In early April 2018 the company released a firmware update. It is only 2554418 bytes in size. binwalk reports the following:

DECIMAL      HEXADECIMAL     DESCRIPTION

48           0x30            ELF, 32-bit LSB executable, ARM, version 1 (SYSV) 200340       0x30E94         SHA256 hash constants, little endian 407696       0x63890         SHA256 hash constants, little endian 516732       0x7E27C         SHA256 hash constants, little endian 519698       0x7EE12         Unix path: /proc/sys/crypto/fips_enabled 647825       0x9E291         Copyright string: "Copyright (C) 2000-2016 Free Software Foundation, Inc." 647880       0x9E2C8         Copyright string: "Copyright (C) 2012-2016 g10 Code GmbH" 647918       0x9E2EE         Copyright string: "Copyright (C) 2013-2016 Jussi Kivilinna" 647980       0x9E32C         SHA256 hash constants, little endian 668100       0xA31C4         CRC32 polynomial table, little endian 683952       0xA6FB0         Copyright string: "Copyright 2003, 2004, 2010, 2013, 2014, 2015, 2016 g10 Code GmbH"