flashrom v0.9.7-r1860 on Linux 3.13.0-24-generic (x86_64) flashrom was built with libpci 3.2.1, GCC 4.8.2, little endian Command line (8 args): ./flashrom -p serprog:dev=/dev/ttyACM0:2000000 -c S25FL128P......0 -v S25FL128P-0.rom -o S25FL128P-0-Verify.txt Calibrating delay loop... OS timer resolution is 1 usecs, 920M loops per second, delay more than 10% too short (got 77% of expected delay), recalculating... 868M loops per second, delay more than 10% too short (got 72% of expected delay), recalculating... 852M loops per second, delay more than 10% too short (got 86% of expected delay), recalculating... 847M loops per second, delay more than 10% too short (got 76% of expected delay), recalculating... 771M loops per second, delay loop is unreliable, trying to continue 10 myus = 7 us, 100 myus = 64 us, 1000 myus = 610 us, 10000 myus = 5920 us, 4 myus = 2 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 Warning: Automatic command availability check failed for cmd 0x08 - won't execute cmd Warning: Automatic command availability check failed for cmd 0x11 - won't execute cmd serprog: Programmer name is "serprog-duino" serprog: Serial buffer size is 65535 serprog: Warning: Programmer does not support toggling its output drivers The following protocols are supported: SPI. Probing for Spansion S25FL128P......0, 16384 kB: probe_spi_rdid_generic: id1 0x01, id2 0x2018 Found Spansion flash chip "S25FL128P......0" (16384 kB, SPI) on serprog. Chip status register is 0x00. Chip status register: Status Register Write Disable (SRWD, SRP, ...) is not set Chip status register: Bit 6 is not set Chip status register: Block Protect 3 (BP3) is not set 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 flash part has status UNTESTED for operations: PROBE READ ERASE WRITE The test status of this chip may have been updated in the latest development version of flashrom. If you are running the latest development version, please email a report to flashrom@flashrom.org if any of the above operations work correctly for you with this flash chip. Please include the flashrom log file for all operations you tested (see the man page for details), and mention which mainboard or programmer you tested in the subject line. Thanks for your help! serprog_delay used, but programmer doesn't support delays natively - emulating Block protection is disabled. Reading old flash chip contents... done. Verifying flash... VERIFIED.