Hi all
I have a new pcb were i have No seriel commulocation
What Can i test, and it what order ?
I have checked the wiring from the pcb to the seriel port ,and this is working
I have tried to see if i could force it into Bootload by connecting pin2 pin3 on the seriel plug , this does also not work
When i power up the pcb it sometimes uses around 0.17-0.22 AMP
But sometimes only 0.11amp this is if i turn the power supply of and on again
That it uses 0.11amp only
Any suggestions ?
Thanks
Skassa
Hello Skassa,
What is the serial number of your board ?
Best regards, Dave
Number 10096
I have just put together number 10097 instead and its working ,
So Will need to get 10096 checked later ,
Now i Can get the Car running with the other pcb
But would still like to know what could be wrong with it ,
I have a old scheme to test from , and all the test is okay
(http://img.photobucket.com/albums/v41/Denmark/9D1C7B30-6405-4A3E-ABCB-1B93448AA313.jpg) (http://smg.photobucket.com/user/Denmark/media/9D1C7B30-6405-4A3E-ABCB-1B93448AA313.jpg.html)
Thanks
Skassa
This might help: http://vems.hu/files/genboardv3/assembly/v3.8/v3_mainboard_homeassembly_srl_9900-10499.pdf
Will the above result in a ecu that Cant connect to vemstune ?
Hello Denmark,
Quote from: Denmark on July 29, 2015, 05:48:50 AM
Will the above result in a ecu that Cant connect to vemstune ?
You seem to be asking the same question in multiple places, already answered in other thread.
Best regards, Dave
(http://img.photobucket.com/albums/v41/Denmark/Mobile%20Uploads/E3797D73-D6C6-4E76-8A5E-300F33DE59A2.jpg) (http://smg.photobucket.com/user/Denmark/media/Mobile%20Uploads/E3797D73-D6C6-4E76-8A5E-300F33DE59A2.jpg.html)
Top resistor is 27k
Bottum resistor is 2.7k
Were the manuel says : top 100K , bottum 10k
Also the 4.7k pullup on the header pin is not there, is this sdcard only OR could this also have a effect on no communication ?
Do i need to change the resistors ? They are fitted in HU , i Can see that they are not machine fitted
I have added the 4.7kohm pullup on the headerpin, no change
I Cannot make contact to the ecu, what Can i check ?
Thanks
Skassa
I tried a few times now that the 4.7kohm resistor is mounted and the ecu is working now and i have uploaded the needed firmware
I have tried to remove the power to the ecu several times now
But it Can connect every time :)
So Happy times :) :)
Thanks
Skassa
Hello Skassa,
I'm a bit confused after reading your last 2 posts, first it did not work and now it does work (without changes after mounting the 4.7k under ISP connector) ?
Best regards, Dave
I''m a bit confused myself ,
I did Mount the 4.7kohm pullup on the header pins, then tested .....No connection
Then i read were you wrote to test the with the terminal program , so did that , also No connect
Then took it off and on serveral times from the powersupply ,
The connected to vemstune and there was contact,
So uploaded config file that i needed , power on and off several times again
And there is contact every time ,
So it looks to be working like normal now :)
Thanks
Skassa