Using SDflash with TMS320F28335

Hello.
I'm trying to erase the memory chip with SD XDS510USB_PLUS. algotima files compiled with SDFlash instructions. While the test pin, running will toggle near 10kHz. But SDflash output errors

MSG: DSP reset succeeded
ERR: Exceeded algorithm execution timeout.
ERR: Failed algorithm execution.
ERR: Erase flash failed.
WARNING: THE CONTENTS OF THE SECURITY PASSWORD LOCATIONS
IN THE FLASH MAY NOT BE IN THE EXPECTED STATE. FOR
FURTHER DEBUG PLEASE CHECK THE README FILE INCLUDED IN
THE LATEST PROGRAMMING ALGORITHM RELEASE (JULY 2004 AND LATER)
SPECIFIC TO YOUR DEVICE.

Help me please!