5 Command Sequence (CSEQ) Flash Request Overview

This chapter provides details about the procedure to perform the DFU with the CSEQ Flash Request. There are five CSEQ Requests to manipulate the Flash as shown in the following table.

After setting P2_0 to ON and P2_4/EAN pins into write Flash mode, the CSEQ Flash Requests are sent in sequence:
  1. Set Flash Request
  2. Get Flash ID Request
  3. Erase Flash Request
  4. Switch Bank Request
  5. Write Flash Request
  6. Repeat steps 4 and 5 until all the banks are written
Table 5-1. CSEQ Flash Request OPCOCE

OPCODE

Parameter Description

0x45 – Write Flash

Write to program space

0x50 – Get Flash ID

Read Flash ID

0x51 – Erase Flash

Erases the entire Flash

0x63 – Switch Bank

Switches the Flash bank

0x70 – Set Flash

Set Flash ID