Entrega U1 S9 Driver For Mac

I recently bought a TrendNet TU-S9 USB to RS232 converter. I need to talk to microcontrollers that use RS232 at 9600 baud. The code I have for a Linux box works fine. I installed the drivers according to the instructions on my laptop and a Mac Mini both running OS X 10.6.7. I changed the device to /dev/cu.usbserial.Here's what happens. It sure does look like communication will work the first time I try it. But if I exit the process I can't write to the serial device anymore.

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If I unplug the USB connection and plug it in again, then I can go one more time. It looks like plugging in the USB connector is what is necessary to get things reset to a usable state.When I get the error the second time I try to start the process, I can open the device, but the error happens the first time I try to send a byte over the serial interface. The error from perror is 'Serial: No such file or directory'.I can get around this problem by writing a second program that merely opens the cu.usbserial device and then loops forever.

This doesn't seem like the best way to fix it, though.Has any one seen this behavior? Can anyone replicate it? Does anyone know how to fix it?Note: this might be related to a previous post, or it might not.Eric. I don't really have an answer to you're exact problem, but I had a problem getting the TU-S9 working with my MacBook Pro today. I have the new 2011 MBP running 10.6.7.

I installed the drivers from TrendNet and the device showed up in my System Profiler as a Prolific USB serial adapter, but the device wasn't available from either of my terminal programs (zterm and goSerial).I later discovered that I needed to actually download the latest drivers from Prolific directly (mdPL2303MacOSX10.6dmgv1.4.0.zip). As soon as I installed the latest drivers and rebooted it worked perfectly.In /dev I had cu.usbserial and tty.usbserial. I was able to get terminal access using either of them by using command 'screen tty.usbserial 9600' (it also worked from zTerm)Hope this helps somebody!

SN Write Tool is a small application for Windows Computer, which allows you to write or flash IMEI on MediaTek devices.

Here on this page, we have managed to shared the latest version of SN Write Tool along with the previous versions.

Features of SN Write Tool

Flash Single or Multiple IMEI:

Chimes range from hourly, hourly intervals and musical ringing. We’ve loads of other generic bells too that can be used for lots of different purposes. These include the historic bells of Napoli in Italy, clock tower bells from around Europe and much more.

It allows you to flash single or multiple IMEI (supports IMEI upto 4) on Mediatek Smartphone and tablets.

Various Write Options:

It allows users to flash various options apart of flashing the IMEI only. It supports Barcode, BT Address, Wifi Address, Wifi EPPCopy, Mac Address, DRMkey MCID.

IMEI Lock:

It allows users to flash or remove the IMEI lock option in the Mediatek Smartphone and tablets.

Multiple Target Support:

It supports Multiple MediaTek Devices like Feature Phone, Smartphone, SP DualModem, Tablet (Wifi only), Rndis Dongle.

Require Database File:

To use SP Write Tool you need to have the database file of the same device on which you are going to flash the IMEI. Database files come along the stock firmware of every device.

Download SN Write Tool

SN_Write_Tool_v1.1916.00 – latest

Readme Once:

[*] How to use: If you want to learn how to write IMEI on MediaTek devices then follow How to use SN Write Tool page.

[*] Download AP BP Base: If you wish you can download the AP BP base which helps you to write the IMEI on your Mediatek devices.

[*] Caution: Flashing IMEI other than the original of your device is illegal and may cause serious troubles to you, so beware.

[*] Whats your Device IMEI Number? You can know your device IMEI number by dialing *#06# or from the back panel of your device (remove your device battery and you will find the IMEI code written on the back panel).

[*] Credits: SN Write Tool is created and distributed by MediaTek Inc. So, full credit goes to them for the tool. MediaTek also provide SP Flash Tool which allows you to flash firmware on MediaTek (MTK) devices.