Digest for sci.electronics.repair@googlegroups.com - 4 updates in 2 topics

Rob <nomail@example.com>: Jan 01 10:53PM

>>but not sure if thats the right way. i would rather combine into one file, and then burn.
 
> If you have access to a Linux system you can do the combining with
> "dd" (one of many choices but it's straightforward).
 
First we need to know what file types Mike is using.
The proposed solution is OK for binary images, but actually in EPROM
burning it is more common to have HEX files, which have lines containing
an address, a number of bytes, and usually a checksum, all in ASCII HEX.
 
To combine those files, you would just need to cat them together.
John Robertson <spam@flippers.com>: Jan 01 04:48PM -0800

On 2021/01/01 2:53 p.m., Rob wrote:
> burning it is more common to have HEX files, which have lines containing
> an address, a number of bytes, and usually a checksum, all in ASCII HEX.
 
> To combine those files, you would just need to cat them together.
 
If the OP is using osX I could recommend a little program I use quite a
bit - burning EPROMs many times a week - called Synalyze It! Pro. Easy
to merge files, do checksums of various levels of complexity and compare
binaries.
 
Here is the free version:
 
https://www.synalysis.net/
 
And I do recommend buying the Pro. I know I don't use all the features...
 
John :-#)#
 
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
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"Old pinballers never die, they just flip out."
dplatt@coop.radagast.org (Dave Platt): Dec 30 01:52PM -0800

In article <8f3647e7-ff48-4bc0-bb1a-89ab5215dc12n@googlegroups.com>,
>tells me to close the application, re-open without choosing a device. that doesnt work,. its
>a 2764. i tried burning the 1st file, then the 2nd, then the third. i see all the code there,
>but not sure if thats the right way. i would rather combine into one file, and then burn.
 
If you have access to a Linux system you can do the combining with
"dd" (one of many choices but it's straightforward).
 
One way to do this would be
 
dd if=/dev/zero of=combined.bin bs=1 count=8192
dd if=1st.bin of=combined.bin bs=1 seek=0 conv=notrunc
dd if=2nd.bin of=combined.bin bs=1 seek=$((0x1000)) conv=notrunc
dd if=3rd.bin of=combined.bin bs=1 seek=$((0x1800)) conv=notrunc
 
In plain language - create an 8k-byte file full of zeros, then copy
each of the three separate images into it, seeking to the appropriate
offset in the file first, and not truncating the file while copying.
John Robertson <spam@flippers.com>: Jan 04 09:43PM -0800

On 2021/01/04 7:48 a.m., legg wrote:
> Amphenol - complete bullshit if you're just looking
> for something that has form, fit and function.
 
> RL
 
The only version that is stretching past the EOL is the chain version of
the pin, and as I don't have an industrial cutter that is of little use
to me. There are clones made, but they are much poorer quality...
 
I ended up ordering 2500 pins from Mouser who had a better price and
also showed EOL ordering. That should last me a few years.
 
John :-#(#
 
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
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