30-11-2016, 07:07 PM
This is just an update. I tried this earlier today but the site seemed to crash on me when I was uploading images. I have updated the firmware on my DSO138.
The firmware can be downloaded from here.
http://www.jyetech.com/Products/LcdScope...es_138.php
I downloaded them all in case I wanted to go back. I used 061. There is a pdf with the instructions here.
http://www.jyetech.com/Products/LcdScope...pgrade.pdf
The instructions are quite good except it seems to show the cable wired Tx to Tx and Rx to Rx. The cable should be wired Tx to Rx and vice versa. It is easy to make up a cable. I used a cable from a scrap PC and repositioned the connectors to suit. The pdf gives a number of links including one for downloading the driver and program. I got the module from Banggood. It cost less than £2 including post. There is an issue with "fake" chips. The download also includes a program for testing for fakes. Mine was genuine. It seems that some with fake chips can still be used but require a different driver. I used XP and had little problems with drivers. For those of you using Win 10
I believe you also need a different driver which I think might be older
. You also need to bridge two jumpers (JP1 andJP2) on the back of the PCB. The actual process of reflashing is well described in the pdf. You do get to a point where you have to agree to wipe the original firmware. This might be a worry for some. I also change the value of R11 to 1.5k as recommended. As you can see in the attached I did not have one of the correct physical size. The one I had only just fitted. The DSO138 now has a few new facilities though the reducion of noise on the trace was not as good as expected. I do think this is worth doing. I hope this is of help to anybody contempating an upgrade. If you already have the 060 firmware you don't have to do this.
Regerds,
Ken.
The firmware can be downloaded from here.
http://www.jyetech.com/Products/LcdScope...es_138.php
I downloaded them all in case I wanted to go back. I used 061. There is a pdf with the instructions here.
http://www.jyetech.com/Products/LcdScope...pgrade.pdf
The instructions are quite good except it seems to show the cable wired Tx to Tx and Rx to Rx. The cable should be wired Tx to Rx and vice versa. It is easy to make up a cable. I used a cable from a scrap PC and repositioned the connectors to suit. The pdf gives a number of links including one for downloading the driver and program. I got the module from Banggood. It cost less than £2 including post. There is an issue with "fake" chips. The download also includes a program for testing for fakes. Mine was genuine. It seems that some with fake chips can still be used but require a different driver. I used XP and had little problems with drivers. For those of you using Win 10
I believe you also need a different driver which I think might be older
. You also need to bridge two jumpers (JP1 andJP2) on the back of the PCB. The actual process of reflashing is well described in the pdf. You do get to a point where you have to agree to wipe the original firmware. This might be a worry for some. I also change the value of R11 to 1.5k as recommended. As you can see in the attached I did not have one of the correct physical size. The one I had only just fitted. The DSO138 now has a few new facilities though the reducion of noise on the trace was not as good as expected. I do think this is worth doing. I hope this is of help to anybody contempating an upgrade. If you already have the 060 firmware you don't have to do this.Regerds,
Ken.
