<whitequark[cis]>
assuming you wired it correctly, yeah
<whitequark[cis]>
how are you powering the flash?
<chmod750[m]>
I checked the wiring several times.
<chmod750[m]>
About powering the flash, I am assuming the glasgow power it directly through the 1.8V?
<whitequark[cis]>
how did you connect power? red wire?
<chmod750[m]>
Yes
<whitequark[cis]>
are you using a SOIC clip?
<chmod750[m]>
Indeed
<whitequark[cis]>
is it in-circuit?
<chmod750[m]>
Right 🙂
<whitequark[cis]>
does the circuit support in-circuit programming?
<chmod750[m]>
It seems so. I am doing my test on a game & watch.
<benny2366[m]>
sorry to introject but does the glasgow''s gnd connected to the devices gnd ?
<whitequark[cis]>
how do you know that e.g. you wouldn't end up back-powering only a part of the circuit from the flash Vcc, which then causes some inputs to be clamped to zero?
<whitequark[cis]>
the other option is that it's a mechanical issue. if there is flux residue on the leads, or they've oxidized, you could have poor enough contact to break the interfacing. SOIC clips barely work to begin with. if you press your fingers against the sides of the clip and rock it back and forth it might work at some point
<whitequark[cis]>
if it's a part of a device that you know uses the flash, you could use the spi-analyzer applet and the memory-25x tool to verify connectivity
<whitequark[cis]>
that would exclude the possibility of back-powering it, and confirm or reject the hypotheses of poor contact or incorrect wiring
<chmod750[m]>
With another chip, I used: glasgow run spi-analyzer -V 3.3 --cs 'A1' --cipo 'A2' --copi 'A5' --sck 'A6' spi_analyzer.output
<chmod750[m]>
I received data in the file and nothing when I use the same against the 25U8035.
<chmod750[m]>
So I guess you are right and there is something preventing me to dump it properly. Maybe a back-powering.
<benny2366[m]>
you can easly test that , just remove the power wire and test again
<whitequark[cis]>
if you see nothing, it means either CS or SCK aren't right
<whitequark[cis]>
in fact, I can narrow it down to CS, if it was SCK you'd see some empty lines
<chmod750[m]>
Still nothing without the power wire