Startech USB56KEMH2 and dreampi

[totalexile]

Hi all, hope you're all well?

I'm trying to get my PAL dreamcast online with a raspberry pi running dreampi 1.7 using a USB modem with a Conexant CX93010-21Z chipset (the USB modem is a Startech USB56KEMH2) but am getting a flashing green data LED even with nothing connected:


I'm guessing this is a software or compatibility issue and was wondering if you have any advice? I've tried different raspberry pis and power supplies with no luck.

Edit: Startech USB56KEMH2 now working after firmware update

[megavolt85]

you can say a thousand words, but no programmer will understand them the way they understand 10 lines of log
do not need words, need a log

[totalexile]

you can say a thousand words, but no programmer will understand them the way they understand 10 lines of log
do not need words, need a log

Sure thing - do you know where the log is stored or what command I need to use?

[megavolt85]

Sure thing - do you know where the log is stored or what command I need to use?

for starters, I would try to run this modem on a PC-DC https://dreamcast-talk.com/forum/viewto ... =3&t=12731
PC-DC provides full log in a separate window

[totalexile]

Sure thing - do you know where the log is stored or what command I need to use?

for starters, I would try to run this modem on a PC-DC https://dreamcast-talk.com/forum/viewto ... =3&t=12731
PC-DC provides full log in a separate window

Thanks megavolt85!

I've got your virtualbox image setup and am now getting the same behavior as on the PI (i.e single flashing data LED).

The terminal output is as follows:

Code: Select all

 * Restarting DNS forwarder and DHCP server dnsmasq                      [ OK ] 
AFO routing enabled
Starting dcvoip process - Shuouma!
Starting dcgamespy process - Shuouma!
Starting dc2k2 process - Shuouma!
Detecting connection and modem...
Detected device ttyACM0 with speed 460800
Internet connected and device found!
Free IP at 192.168.0.99
Free IP at 192.168.0.98
Dreamcast IP: 192.168.0.98
Opening serial interface to ttyACM0
ATZ0

OK
ATE0

OK
AT+FCLASS=8

ERROR
AT+VLS=1

ERROR
AT+VSM=1,8000

ERROR
AT+VTX

ERROR

[megavolt85]

commands AT+FCLASS, AT+VLS, AT+VSM, AT+VTX not supportes
I can say with absolute certainty that you have a soft modem (win modem), this modem is not suitable for emulating a telephone line

[totalexile]

commands AT+FCLASS, AT+VLS, AT+VSM, AT+VTX not supportes
I can say with absolute certainty that you have a soft modem (win modem), this modem is not suitable for emulating a telephone line

Damm - thanks for confirming this. Not the answer I wanted to hear but thank you for your help!

The startech site suggests that this was a hardware modem: https://www.startech.com/en-us/networking-io/usb56kemh2

I know some people have had success with CX93010 chip sets but I guess this is the CX93010-11Z chipset rather than the CX93010-21Z chipset (https://www.dreamcast-talk.com/forum/vi ... 010#p95251 https://www.dreamcast-talk.com/forum/vi ... 010#p98666 for example)

I assume I will need to get a new USB modem (ideally a Conexant RD02-D400 device)

[Zarper]

commands AT+FCLASS, AT+VLS, AT+VSM, AT+VTX not supportes
I can say with absolute certainty that you have a soft modem (win modem), this modem is not suitable for emulating a telephone line

Damm - thanks for confirming this. Not the answer I wanted to hear but thank you for your help!

The startech site suggests that this was a hardware modem: https://www.startech.com/en-us/networking-io/usb56kemh2

I know some people have had success with CX93010 chip sets but I guess this is the CX93010-11Z chipset rather than the CX93010-21Z chipset (https://www.dreamcast-talk.com/forum/vi ... 010#p95251 https://www.dreamcast-talk.com/forum/vi ... 010#p98666 for example)

I assume I will need to get a new USB modem (ideally a Conexant RD02-D400 device)

Not sure if this is relevant anymore, but I spoke with Startech support about the USB56KEMH2 to see if it supported voice.
They said that it currently wasn't supported but sent me a firmware that is supposed to add it and documentation about the chip that seem to confirm that all features needed should be possible. If you still have the device (or anyone else) and would like to try I have a link to the firmware.

[aoeu204]

Not sure if this is relevant anymore, but I spoke with Startech support about the USB56KEMH2 to see if it supported voice.
They said that it currently wasn't supported but sent me a firmware that is supposed to add it and documentation about the chip that seem to confirm that all features needed should be possible. If you still have the device (or anyone else) and would like to try I have a link to the firmware.

You should probably just post the link regardless so its easily available rather than people having to contact support for it

[totalexile]

commands AT+FCLASS, AT+VLS, AT+VSM, AT+VTX not supportes
I can say with absolute certainty that you have a soft modem (win modem), this modem is not suitable for emulating a telephone line

Damm - thanks for confirming this. Not the answer I wanted to hear but thank you for your help!

The startech site suggests that this was a hardware modem: https://www.startech.com/en-us/networking-io/usb56kemh2

I know some people have had success with CX93010 chip sets but I guess this is the CX93010-11Z chipset rather than the CX93010-21Z chipset (https://www.dreamcast-talk.com/forum/vi ... 010#p95251 https://www.dreamcast-talk.com/forum/vi ... 010#p98666 for example)

I assume I will need to get a new USB modem (ideally a Conexant RD02-D400 device)

Not sure if this is relevant anymore, but I spoke with Startech support about the USB56KEMH2 to see if it supported voice.
They said that it currently wasn't supported but sent me a firmware that is supposed to add it and documentation about the chip that seem to confirm that all features needed should be possible. If you still have the device (or anyone else) and would like to try I have a link to the firmware.

Yes I still have this device and would be happy to test. I got a Conexant RD02-D400 device in the end, so the USB56KEMH2 is just sitting around doing nothing...