Does LPC54018M have IAP FLASH functions?

[shaozhongliangs]

I want to program the internal 4 MByte Flash of the LPC54018M via IAP. In the SDK there is the "boards\lpcxpresso54s018m\driver_examples\iap\iap_basic" example, but it doesn't include IAP_PrepareSectorForWrite/IAP_EraseSector functions.  These APIs  don't work after adding into the example, even though running in on-chip SRAM. Does LPC54018M have IAP FLASH functions?

IAP example

PartID: 1FD4018

The major version is: 1501

The minor version is: 0

Unique ID: 0000
IAP_PrepareSectorForWrite return 0x27d9
IAP_EraseSector return 0x27d9

[springc]

Hi Jun,

I am going to build LPC54S018J4M a internal flash erase/ write function with iap. But as previous question, clarified the iap only 4 command for the chip. could you help to explain how to do a erase/ write bootloader to SRAM through IAR + J-Link for the chip? SPIFI command or other?

I try to use access 0x40080000 (SPIFI command registers), but return me as 0s ~~ Why? any procedure need to enable r/w for this registers?

Thanks, Spring ~~

[ZhangJennie · Accepted solution]

Hi  S.z. Liang

LPC540xx, unlike LPC546xx, doesn't integrate IAP prepare sectors for write operation and erase sector command.

Actually, According to LPC540xx UM, There are only 4 IAP commands valid.

If we check LPC546xx UM, more IAP commands are supported:

     

That's different.

Have a great day,
Jun Zhang

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[converse]

Isn't the 54018 a flashless part? That explains why it has no IAP...

[ZhangJennie]

Hi

I understood your mentioned "LPC54018M" as "LPC54018JxM", right?

LPC54018JxM has Internal Serial Flash but other LPC540xx doesn't have internal Flash.

So LPC54018JxM  has flash. But as LPC54018JxM flash is a internal serial flash, ( encapsulating a SPIFI flash inside the package), It's different with other on chip flash chips.  So I am with your angle of view to understand this issue.

Have a great day,
Jun Zhang

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