It's not an Arduino, it's a USB dongle to communicate with Arduino
(and any other embedded device's) TTL serial pins.
Search for "arduino USB-TTL dongle" on ebay or amazon to find this tool.
-Alberto
On 02/06/19 17:39, Chris wrote:
Hi Alberto,
Thanks for explaining the situation to me. I'll get hold of an Arduino
and give this a shot.
All the best,
Chris
On Tue, May 28, 2019 at 4:52 PM Alberto Bursi
<[email protected] <mailto:[email protected]>> wrote:
Last attempt I saw was here
https://github.com/openwrt/openwrt/pull/1770
but it was rejected.
I have some experience with the bootloader used in this device, I can
provide more complete instructions to do the uboot fix though.
TTL/serial access seems to be easy (there is a header as you see
in the photo),
and you need an inexpensive "arduino USB-TTL dongle" to connect to
this device.
Connect the pins as defined in the wiki, open up your serial
communication program (Putty usually)
and set it for 115200 serial speed, others default.
Then boot the device, press a key to stop boot when you see
"Hit any key to stop autoboot: 2 1 0"
It should stop and accept console commands.
then copy-paste this line
setenv sleep 1;nmrp;sf probe 0:3;sf read $loadaddr 0x30000
0x400000;bootm $loadaddr
This will alter the bootloader configuration that is causing the
issue. Now it will boot kernels up to 4MB big
Will still be able to boot stock firmware, we are just increasing
a size limit.
and then save the change by writing
saveenv
and then you can reboot the device by pulling the plug or writing
reset
Now you can install OpenWrt as normal.
-Alberto
On 28/05/19 14:00, Chris wrote:
Hi folks,
I was wondering if a patch enabling this device was ever released?
http://lists.infradead.org/pipermail/openwrt-devel/2019-January/015556.html
The wiki suggests one can only install/boot into OpenWRT by
wiring up a JTAG/serial interface and manually intervene... Which
is far beyond my comfort zone.
Am very eagar to make use of this equipment, so any news would be
really appreciated.
All the best,
Chris
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