topic LPC1114FBD48/301 - replacement in LPC Microcontrollers

LPC1114FBD48/301 - replacement

Karol_VT — Thu, 10 Jun 2021 21:02:26 GMT

Hi,

We are using LPC1114FBD48/301.

Now due to a problem with availability of this type we want to use LPC1114FBD48/302 interchangeably.

Please let me know if the code writen for LPC1114FBD48/301 will work the same on the type LPC1114FBD48/302 ?

Regards,

Karol

Re: LPC1114FBD48/301 - replacement

xiangjun_rong — Fri, 11 Jun 2021 01:18:06 GMT

Hi, Karol,

I think that the LPC1114FBD48/302 and LPC1114FBD48/301 can be used interchangeably.

Regarding the difference between LPC1114FBD48/302 and LPC1114FBD48/301, first of all, they have the same pin assignment, same peripherals, the only difference is the power profiles, in other words, the ROM code is different.

The LPC1114FBD48/302 belongs to LPC1100L series, only the LPC1100L series has the power profiles, it provides two ROM api functions: set_pll() and set_power().

For detailed inf, pls refer to Chapter 5: LPC111x/LPC11Cxx Power profiles in UM10398.pdf.

Hope it can help you

XiangJun Rong

Re: LPC1114FBD48/301 - replacement

Karol_VT — Fri, 11 Jun 2021 06:46:59 GMT

Hi XiangJun,

Thank you for your reply.

We don't use these functions in our code and I have to be sure that it will work the same on both types.

That is, if we do not configure these functions, they have default settings that are identical to the configuration in type ... / 301?

Regards,

Karol_VT

Re: LPC1114FBD48/301 - replacement

xiangjun_rong — Fri, 11 Jun 2021 09:45:29 GMT

Hi,

As I said that the LPC1114FBD48/302 and LPC1114FBD48/301 can be used interchangeably, because only ROM code is different from software, which you do not call. For the hardware, the LPC1114FBD48/302 support programmable open drain mode which you do not use. so you do not need to change any software or hardware, the LPC1114FBD48/302 and LPC1114FBD48/301 can be exchanged.

Hope it can help you

XiangJun Rong