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Messages - kroutshev

Pages: 1 [2]
16
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 11:29:52 PM »
It's ok now i have found the correct version in my hard disk.

17
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 11:25:02 PM »
v 0.1 ...
but i can't reach dfu.org !!

18
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 11:18:40 PM »
Problem  with dfu
C:\Documents and Settings\Papa Ours.MINIMOI\Mes documents\Téléchargements\preenf
m>dfu-util -a0 -d 0x0483:0xdf11 -D p2_boot_1.11.bin -R -s 0x8000000
dfu-util - (C) 2007-2008 by OpenMoko Inc.
This program is Free Software and has ABSOLUTELY NO WARRANTY

dfu-util: invalid option -- s
Usage: dfu-util [options] ...
  -h --help                     Print this help message
  -V --version                  Print the version number
  -l --list                     List the currently attached DFU capable USB devi
ces
  -d --device vendor:product    Specify Vendor/Product ID of DFU device
  -p --path bus-port. ... .port Specify path to DFU device
  -c --cfg config_nr            Specify the Configuration of DFU device
  -i --intf intf_nr             Specify the DFU Interface number
  -a --alt alt                  Specify the Altsetting of the DFU Interface
                                by name or by number
  -t --transfer-size            Specify the number of bytes per USB Transfer
  -U --upload file              Read firmware from device into <file>
  -D --download file            Write firmware from <file> into device
  -R --reset                    Issue USB Reset signalling once we're finished

19
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 10:53:18 PM »
ok let's go i'm coming back soon :-)

20
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 10:44:14 PM »
Ok let's go
7805 : Input 10.6 V Output 4.93
LD1117  Input 4,87 Output 3,28

The 7805 is hot and not the second regulator.
It seems correct !

21
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 10:30:45 PM »
No it's the number 2 !

22
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 10:20:54 PM »
and unfortunaly no sound  :-[

23
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 09:54:03 PM »
Here's my blank screen :


24
preenfm2 and preenfm3 / Re: Bad power supply with high voltage.
« on: November 13, 2014, 09:44:11 AM »
Hi Xavier,
When i had the wrong power supply it was 18V.

About sound i havn't tested it and the display doesn't change when i turn encoder.
I will post a picture this evening.

25
preenfm2 and preenfm3 / [SOLVED]Bad power supply with high voltage.
« on: November 13, 2014, 12:21:34 AM »
Hi,
 i have made a mistake last night : i have connected a power supply too high in voltage for the preenfm2 first run board.
Now i have a screen with few whites and black squares. Regulator 7805 was very hot. I have tested it and same voltage in input and output.
I have replaced it with a new one. Now i have 10 v in input and 5,2V at output.
But still strange screen with indications.
Where i can find reference voltage to check which components are out of service please ?
Thanks for your help.

26
preenfm2 and preenfm3 / Re: Problem with M oHm resistors
« on: December 12, 2013, 11:39:05 PM »
You're right, thanks for the tip, i don't knew that !

27
preenfm2 and preenfm3 / Re: Problem with M oHm resistors
« on: December 12, 2013, 11:26:46 PM »
Xavier, thanks for your quick reply, i have checked few times and it was 11 M and now i measure to make you a photo, and my multimeter say 1 M ... i don't understand ???
Let's go !

28
preenfm2 and preenfm3 / [Fixed] Problem with M oHm resistors
« on: December 12, 2013, 10:58:37 PM »
Hi,
 i've just received my kit, thanks Xavier !
I'm beginning by the resistors but when i measure the 1 Mohm Resisor, my multimeter say 11 Mohm ...
Is there a problem ?

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