Hi,
I was in bed (time zone difference) when your message came in. This is a glorious November morning.
Here is a summary of what I did:
downloaded the developers kit to my Linux laptop, and copied it - as instructed in the manual - to the micro sd using unzip | dd.
jumpered #48
connected a usb cable to the Board’s connector and to the Laptop USB port. It is, of course, a SERIAL connection (that’s what the S in USB stands for). Before connecting to the board, I plugged the cable to my phone, which has the same connection (the Micro, NOT usb-c) , and it was recognized instantaneously by the laptop : ergo, the cable is Ok.
following the manual, I ran the dmesg command (I am on Fedora 33)
root@pashosh mnt]# dmesg | grep tty
[ 0.143736] printk: console [tty0] enabled
[ 6.957746] systemd[1]: Created slice system-getty.slice.
Then I plugged the power - the Green led came on. Connected the USB cable, waited , and ran the dmesg again. The manual says I should see another (Virtual?) COM port over USB, which I should connect to with putty.
Nothing . The same display.
Rebooted the Laptop (it is a Dual boot) to windows. Went to device manager .A Single COM port appears there, with the application complaining it can’t find a driver. This is BEFORE I connected the Cable.
Connected the Cable: Nothing Changed.
The usual suspects:
Cable? well, This cable connects my phone to the Laptop with no problem.
Maybe the Software on the SD Card? I SUSPECT the board firmware (“Bios”…) manages the emulation of a COM port over the USB, so the SD shouldn’t matter at this time. Nevertheless, I pulled it out, reconnected it to the laptop, mounted it (under severe complaints…) and got the following structure using gparted (see attachment). The multiple small partitions before partition #1 bother me a little, but who am I to judge. Maybe this is what is required. The partition has what looks like a linux distro (see below), with a “meaningful” README:
shalom@pashosh mnt]$ ls -l
total 104
drwxr-xr-x. 2 root root 4096 Oct 8 07:32 bin
drwxr-xr-x. 4 root root 4096 Oct 19 18:25 boot
drwxr-xr-x. 2 root root 4096 Oct 19 18:59 dev
drwxr-xr-x. 145 root root 12288 Oct 19 18:59 etc
drwxr-xr-x. 2 root root 4096 Apr 24 2018 home
drwxr-xr-x. 21 root root 4096 Oct 19 18:24 lib
drwx------. 2 root root 16384 Oct 19 18:59 lost+found
drwxr-xr-x. 2 root root 4096 Aug 6 2018 media
drwxr-xr-x. 2 root root 4096 Apr 26 2018 mnt
drwxr-xr-x. 4 root root 4096 Oct 19 18:24 opt
drwxr-xr-x. 2 root root 4096 Apr 24 2018 proc
-rw-rw-rw-. 1 root root 62 Oct 16 22:44 README.txt
drwx------. 2 root root 4096 Apr 26 2018 root
drwxr-xr-x. 17 root root 4096 Oct 8 07:35 run
drwxr-xr-x. 2 root root 4096 Oct 8 07:32 sbin
drwxr-xr-x. 2 root root 4096 May 11 2018 snap
drwxr-xr-x. 2 root root 4096 Apr 26 2018 srv
drwxr-xr-x. 2 root root 4096 Apr 24 2018 sys
drwxrwxrwt. 2 root root 4096 Oct 19 18:59 tmp
drwxr-xr-x. 12 root root 4096 Oct 19 18:55 usr
drwxr-xr-x. 19 root root 4096 Oct 19 18:57 var
[shalom@pashosh mnt]$ cat README.txt
Download and extract the sample filesystem to this directory.
[shalom@pashosh mnt]$
is this “good”? Maybe , I don’t know.
Tried the whole cycle again, on a “desktop” computer, both Linux and Windows. Nothing.
What gives? Did I get a DOA unit? How can i diagnose it if I just can’t connect to it?
Thanks,
Shalom Elkin
I S R A E L
