When the flash is empty, it can erase successfully.
there is code in flash, it erase successfully. However, the information in the LOG indicate success. What is more, the "Memory Contents" is not all "0xff".
[INFO @15-09-21 17:58:49] Firmware File C:\Users\lzq\SmartSnippets\resources\jtag_programmer.bin has been selected
[INFO @15-09-21 17:58:50] Successfully downloaded firmware file to the board.
[INFO @15-09-21 17:58:57] SPI Memory erasing completed successfully.
[INFO @15-09-21 17:58:57] Reading memory to refresh memory contents....
[INFO @15-09-21 17:58:57] Reading has finished. Read 32768 bytes.