Hey,

First of all, thank you for the great work.

I am trying to access the Micron N25Q064A13 flash chip on my Synology NAS DS413j.

I happen to have a teensy board available at hand, so I programmed it with serprog software, using the instructions to which the flashrom website points to.

I am under Xubuntu 15.04, and I installed flashrom from the daily builds ppa.
If I remember, the version was 20150705~ubuntu14.04.1.

xubuntu@xubuntu:~$ flashrom -R
flashrom v0.9.8-unknown on Linux 3.19.0-25-generic (x86_64)

I connected the programmer with GND, MISO, MOSI, CLK and CS using grips. As I am ISP, I did not connect the VCC.

I double-checked my connections, and they seem to be fine.

I start the NAS, and using serial terminal (on a different computer), I stop the boot sequence at uboot prompt.
If I flinfo in the uboot, I get  the following info :

While the system is waiting on the prompt, I launch a flashrom command, and the chip is not recognized :

xubuntu@xubuntu:~$ sudo flashrom -V -p serprog:dev=/dev/ttyACM0:2000000
flashrom v0.9.8-unknown on Linux 3.19.0-25-generic (x86_64)
flashrom is free software, get the source code at http://www.flashrom.org

flashrom was built with libpci 3.2.1, GCC 4.8.4, little endian
Command line (3 args): flashrom -V -p serprog:dev=/dev/ttyACM0:2000000
Calibrating delay loop... OS timer resolution is 1 usecs, 1104M loops per second, 10 myus = 10 us, 100 myus = 100 us, 1000 myus = 999 us, 10000 myus = 9998 us, 4 myus = 4 us, OK.
Initializing serprog programmer
Baud rate is 2000000 now.
serprog: connected - attempting to synchronize
.
serprog: Synchronized
serprog: Interface version ok.
serprog: Bus support: parallel=off, LPC=off, FWH=off, SPI=on
serprog: Maximum write-n length is 2037
serprog: Maximum read-n length is 400384
serprog: Programmer name is "Teensy LPC+SPI"
serprog: Serial buffer size is 2044
serprog: operation buffer size is 2048
serprog: Output drivers enabled
The following protocols are supported: SPI.
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