sudo flashrom -c "N25Q064..3E" -E -V -p serprog:dev=/dev/ttyACM0:115200flashrom v0.9.9-rc1-r1942 on Linux 4.10.0-32-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

flashrom was built with libpci 3.3.1, GCC 5.3.1 20160225, little endian
Command line (6 args): flashrom -c N25Q064..3E -E -V -p serprog:dev=/dev/ttyACM0:115200
Calibrating delay loop... OS timer resolution is 1 usecs, 4295M loops per second, 10 myus = 12 us, 100 myus = 119 us, 1000 myus = 1356 us, 10000 myus = 11569 us, 4 myus = 4 us, OK.
Initializing serprog programmer
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 1013
serprog: Maximum read-n length is 23552
serprog: Programmer name is "frser-duino"
serprog: Serial buffer size is 1020
serprog: operation buffer size is 12
serprog: Output drivers enabled
The following protocols are supported: SPI.
Probing for Micron/Numonyx/ST N25Q064..3E, 8192 kB: probe_spi_rdid_generic: id1 0x20, id2 0xba17
Found Micron/Numonyx/ST flash chip "N25Q064..3E" (8192 kB, SPI) on serprog.
Chip status register is 0x00.
Chip status register: Status Register Write Disable (SRWD, SRP, ...) is not set
Chip status register: Block Protect 3 (BP3) is not set
Chip status register: Top/Bottom (TB) is top
Chip status register: Block Protect 2 (BP2) is not set
Chip status register: Block Protect 1 (BP1) is not set
Chip status register: Block Protect 0 (BP0) is not set
Chip status register: Write Enable Latch (WEL) is not set
Chip status register: Write In Progress (WIP/BUSY) is not set
This chip may contain one-time programmable memory. flashrom cannot read
and may never be able to write it, hence it may not be able to completely
clone the contents of this chip (see man page for details).
Erasing and writing flash chip... Trying erase function 0... 0x000000-0x000fff:E, 0x001000-0x001fff:E, 0x002000-0x002fff:EFAILED at 0x00002000! Expected=0xff, Found=0x00, failed byte count from 0x00002000-0x00002fff: 0x974
ERASE FAILED!