Low voltage SPI flash

USB BDM software. Bug report.
Modem_converter
Posts: 12
Joined: Thu Sep 05, 2013 3:26 pm

Low voltage SPI flash

Post by Modem_converter » Mon Feb 26, 2018 9:55 pm

I've run into a low voltage SPI flash chip, N25Q128A on the TC4350. Any devices for reading/writing this chip? Any chance USBJTAG NT could support it?

Modem_converter
Posts: 12
Joined: Thu Sep 05, 2013 3:26 pm

Post by Modem_converter » Mon Feb 26, 2018 10:16 pm

Okay, I'm just being dumb. TC4350 is operating SPI flash at normal 3.3V. However, it does seem like low voltage SPI are around in places, so I'm still curious.

usbbdm
Posts: 8491
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm » Tue Feb 27, 2018 3:01 pm

Modem_converter wrote:Okay, I'm just being dumb. TC4350 is operating SPI flash at normal 3.3V. However, it does seem like low voltage SPI are around in places, so I'm still curious.
The low voltage connect to USB JTAG NT might need level shifter.
However a simple resister in series should also work.

Post Reply