Bootloader availability limitations

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Bootloader availability limitations

The bootloader feature is unavailable on some devices soldered on development tools

(starter kits or evaluation boards). Please check the date code written on the device. This

date code consists of 3 digits and is located as shown in Figure 12 below. If the device

soldered on the board displays a date code below 636, the bootloader feature is not

activated.

Note:

If available, the bootloader version number (currently at V1.1) can be obtained through the

use of the Get command. Refer to Section 1.4.1 on page 5 for further details.

ST wants to highlight that this issue ONLY impacts devices soldered on a development tool

with the affected date codes. Any sample ordered separately from ST (or its distributors) has

the bootloader feature enabled (even if date code is below 636).

To those affected by this issue, ST offers the following recommendations:

●

Use STR750 samples ordered separately (for example for building application

prototypes) to test the bootloader functionality.

●

Use the free sample service from www.st.com . From the home page, type the correct

order code in the "Search Part #" field. From the results page, click the green

"Samples" button and follow the procedure. If the "Samples" button is not available, the

stock is in the process of being renewed and can be checked again at a later date.

●

For further options or information, please contact your local distributor or ST sales

office.

Figure 12.

Datecode marking on device

A

B

CD

E

F

G

HI

J

L

a

Areas H and I on the device marking

represent the date code in the following

manner:

●

H: Year (Y)

●

I: Week (WW)