beautypg.com

Answers from the device to a blank check command – Rainbow Electronics AT89C5132 User Manual

Page 18

background image

18

AT89C5132

4256A–USB–06/03

Answers from the Device to a
Blank Check Command

The Host controller send a GET_STATUS request to the device. Once internal blank
check has been completed, the device sends its status.

If the device status is “OK”:
the device memory is then blank and the device waits the next Host request.

If the device status is “

errCHECK_ERASED

”:

the device memory is not blank. The device waits for an DFU_UPLOAD request to
send the first address where the byte is not 0xFF.