Datasheet

I2C Bootloader
Document Number: 001-13258 Rev. *J Page 35 of 39
Figure 10 shows the last download record:
Figure 10. Last Download Record
The last line is a final status request and possibly a response. When the exit bootloader command is
received, the target system immediately executes an internal reset and begins verifying the checksum for
the downloaded application. This is done using the parameters given in the checksum block. Depending
on the speed of the host system, the bootloader may already have begun its reset process before the
master is able to receive a valid status byte. For this reason, the status (0x20) may not always be present.
Instead, the address 0x71 may simply be NAK’ed.
BootLdrI2C and E2PROM User Module Coexistence
When you place an E2PROM User Module in a Bootloader project, allocate the E2PROM blocks in the
Customer Reserved Blocks area. This area is between the Bootloader Code Area and the Application