ROM of RTL8711AM IOT chip

[J_T]

To every revered senior engineer and researcher,

It would be my pleasure to have your precious response of my basic technical question, which is about ROM size of RTL8711AM IOT chip.

Through specification of RTL8711AM, the ROM size is declared to be 1MB.

With technical specification mentioned above, Can I make further inference that the (Electrically-Erasable Programmable Read-Only Memory) EEPROM could be 1MB or less than that? How do I determine the exact size of EEPROM based on this condition?

Sincerely,

Andrew

[xidameng]

Hi @J_T

RTL8711AM has 1MB ROM(Read Only Memory) which is 1-time-programmable, and depends on your Chip model, the non-volatile memory–Flash size may vary, detailes about this chip can be found on the webpage at,

https://www.realtek.com/en/products/communications-network-ics/item/rtl8711am

[xidameng]

@J_T

How do I determine the exact size of EEPROM based on this condition?

Typically, the Flash memory will range from 4Mb to 8Mb, but it can be as large as 64MB if you need.

To dtermine the flash size, you can use the flash api from our opensource sdk to determine, exmaples are as follows,

ambiot/amb1_sdk/blob/master/project/realtek_ameba1_va0_example/example_sources/flash/src/main.c

[J_T]

Dear sir, may I understand your precious commentations this way?

1.RTL8711AM has 1MB for ROM, which
could be utilized through EEPROM, as
single-time non-volatile memory.
2. About size of EEPROM, I don’t think it is
related to FLASH memory. I think ROM
size is equal to EEPROM size. But I can
infer the size of FLASH memory through
the api you recommend.

Sincerely,

Andrew

[xidameng]

There is no on-chip EEPROM to this IC, only ROM, SRAM and SDRAM

[J_T]

Thank you for your reply.