Hello.
LPC11U34FBD48/311's device_id in UM10462(v5.5) is 0x003 D440.
But my devices return 0x2000 002B.
(The address is 0x4004 83F4)
Is it right device_id ?
Or is the address wrong ?
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I've gotten right device_ids in some other LPC11Ux.
example)
0x2980 002B for LPC11U24FBD48/301 ( same as one in UM10462)
0x2980 102B for LPC11E14FBD48/401 ( same as one in UM10518)
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Thanks.
已解决! 转到解答。
Hello helm,
Sorry I also don't know the really reason, while you can see in the " Table 48. Device ID register (DEVICE_ID, address 0x4004 83F4) bit description", there is no LPC11u3x.
Anyway, recommend use IAP/ISP command read.
Thanks,
Alice
Thanks for your reply, Alice Yang.
I tried ISP and IAP.
I got the right device_id(0x003 D440) with the ISP mode command "J" and the right one with IAP command 54.
Thank you.
However, the right address of device_id is 0x4004 83F8 not 0x4004 83F4.
actual data::
0x400483f4: 2b 00 00 20 40 d4 03 00
Is the address changeable depending on product's Lot in LPC11Uxx ?
Regards,
Helm
Hello helm,
Sorry I also don't know the really reason, while you can see in the " Table 48. Device ID register (DEVICE_ID, address 0x4004 83F4) bit description", there is no LPC11u3x.
Anyway, recommend use IAP/ISP command read.
Thanks,
Alice
Certainly there is no LPC11U3x in Table 48 as you say.
It's a little bit difficult notation because of the description;
"This device ID register is a read-only register and contains the part ID for each LPC11U3x/2x/1x part."
in 3.5.42 of UM10462.
Anyway, I will use ISP/IAP for detecting DEVICE_ID.
Thanks !
I attach a link I found today for other's reference.
https://community.nxp.com/t5/LPC-Microcontrollers/LPC11U68JBD100-Device-ID/m-p/537085
Regards,
Helm