⚠️
Hi there.. thanks for coming to the forums. Exciting news! we’re now in the process of moving to our new forum platform that will offer better functionality and is contained within the main Dialog website. All posts and accounts have been migrated. We’re now accepting traffic on the new forum only - please POST any new threads at//www.wsdof.com/support. We’ll be fixing bugs / optimising the searching and tagging over the coming days.
8 posts / 0 new
Last post
Mon, 2020-09-14 17:59
#1
jsageder
Offline
Last seen:2 months 3 weeks ago
加入:2018-08-22 13:18
DA14531MOD burning OTP

Hi there,

Unfortunately I couldnt find it in any datasheet or forum entry... Does anyone know on which pin in need to have the 6.8V on the DA14531MOD when programming the OTP?

Many thanks!

Jos

Device:
DA14531 SmartBond TINY Module
Tue, 2020-09-15 14:19
PM_Dialog
Offline
Last seen:17 hours 40 min ago
Staff
加入:2018-02-08 11:03
Hi jsageder,

Hi jsageder,

The 6.8V for the OTP programming was only for DA14580/583 product family. In case of DA14531, that voltage is not needed any more. Please see section 3.2 Recommended Operating Conditions from the DA14531 datasheet.

Thanks, PM_Dialog

Tue, 2020-09-15 14:22
(Reply to #2)
jsageder
Offline
Last seen:2 months 3 weeks ago
加入:2018-08-22 13:18
Hi!

Hi!

好吧,这是很酷的:-)所以VBat 3 v单独fine to perform OTP programming? If so, that would be super!

Thanks,
Jos

Tue, 2020-09-15 14:44
PM_Dialog
Offline
Last seen:17 hours 40 min ago
Staff
加入:2018-02-08 11:03
Hi jsageder,

Hi jsageder,

Yes - please check Figure 2: Pinout Diagram Top View. You should power the module according to Table 3: Recommended Operating Conditions - seeDA14531 Module Datasheet.

Thanks, PM_Dialog

Accepted answer
Tue, 2020-09-15 14:48
jsageder
Offline
Last seen:2 months 3 weeks ago
加入:2018-08-22 13:18
Thanks!

Thanks!

Tue, 2020-09-15 15:04
PM_Dialog
Offline
Last seen:17 hours 40 min ago
Staff
加入:2018-02-08 11:03
Thanks for accepting my

Thanks for accepting my answer. Keep in mind that OTP stands for One Time Programmable, thus you can’t erase and re-write the OTP multiple times.

Regards, PM_Dialog

Tue, 2020-09-15 15:11
jsageder
Offline
Last seen:2 months 3 weeks ago
加入:2018-08-22 13:18
Thanks for your help! Just

Thanks for your help! Just out of couriosity and if you can share this info, is the voltage generated internally or does the DA14531 use a different type of OTP that does not require the higher voltage anymore?

Wed, 2020-09-16 16:51
PM_Dialog
Offline
Last seen:17 hours 40 min ago
Staff
加入:2018-02-08 11:03
Hi jsageder,

Hi jsageder,

Please see 11 OTP Controller from the DA14531 datasheet for more information on the OTP.

Thanks, PM_Dialog