topic Re: LPC1114/444FBD48 IAP Code Size Issue in LPC Microcontrollers

LPC1114/444FBD48 IAP Code Size Issue

john_zhou1 — Tue, 22 Nov 2022 11:20:36 GMT

I am using NXP LPC1114/333 (56K flash) with keil 5.
Bootloader starts from 0 and App starts at 0x1000
App works fine when BIN size is 24,384 Bytes or smaller:
Program Size: Code=22604 RO-data=1452 RW-data=1020 ZI-data=1228

But not larger.
When I set App runs from 0, the flash size limit issue is gone, so codes were fine.

Where should I start to get rid of this?

Thank you!

Re: LPC1114/444FBD48 IAP Code Size Issue

xiangjun_rong — Wed, 23 Nov 2022 06:17:43 GMT

Hi,

I suggest you generate a memory map file based on your application code with Keil and check if the code/constant data are saved in flash correctly, if there is issue, check if the linker file has issue.

XiangJun Rong

Re: LPC1114/444FBD48 IAP Code Size Issue

john_zhou1 — Thu, 24 Nov 2022 06:26:36 GMT

Hello dear xiangjun_rong:

Thanks for the fast reply.

I have generated Maps for both working and not working BINs and did not have any clues.

I am located in Beijing, China. May I request an offline support or phone call? Because this is urgent, even paid tech support are acceptable.

Thank you!