Datasheet

NXP Semiconductors
UM11193
KITFS85AEEVM evaluation board
UM11193 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 2.1 — 30 January 2019
45 / 52
8.4.8 OTP programming
This tab allows you to burn the OTP using a script generated by the excel file OTP
configuration (see Section 7.1 "Generating the OTP configuration file ").
Figure 38. OTP burning
To set up the hardware before OTP burning, see Section 7.3 "Programming the device
with an OTP configuration".
See Figure 38 and follow the steps:
• Browse and load the script file you want to burn. The program button is then available.
• Click Program.
FlexGUI pops up to turn the 8.0 V On, and then turns Off. Note that the blue LED on the
board indicates that an 8.0 V voltage is available on the Debug pin. This voltage is used
only during the burning process, and should not be applied in any other configuration. At
the end of the first OTP programming, the MTP index = 1, WP, BE and CRC flags are
green.
The Sector Flags area provides status Table 19 provides the state of main flags after a
read. This helps to determine how many times the part was burned.
Table 19. OTP burning flag status
OTP burning step BE WP CRC MTP Index
OTP not burn
Mirrors Empty
Red Red Red 1
OTP not Burn
Mirrors Filled
Red Red Green 1
1 Green Green Green 1
2 Green Green Green 2
3 Green Green Green 3
Example shown in Figure 38 corresponds to the OTP burning step 2 from Table 19.
To check if a valid OTP configuration is already burned, switch V
BAT
Off, then On, and
start the device. The device starts with the OTP configuration.