NRF52832QFAA Flash Size

[yaoCheng]

Hi,

I am using a chip labeled with "N52832 QF ABB0 1717AQ".

According to its specification, this chip should have 256kB flash. However, nRFgo Studio shows that its size is actually 512kB.

So how large is the flash size of "NRF52832 QFAB" variant?

[yaoCheng]

I mean "NRF52832QFAB Flash Size", typed it wrong.

[bjorn-spockeli]

yaoCheng: The nRF52832 QFABB0 should only have 256kB of Flash. Could you use nrfjprog to readout the INFO.FLASH  FICR registers @ address 0x10000110 using the following command

nrfjprog -f nrf52 --memrd 0x10000110

This should return

0x10000110:  00000100 

if your nRF52832 QFABB0 indeed is a QFABB0. 

[yaoCheng]

Thank you for the quick answer.

This command returns 0x10000110:  00000200.

So it is not really a QFAB variant?

[bjorn-spockeli]

yaoCheng: No, it is indeed a QFAB variant. We have released an errata regarding this anomaly [163] FICR: Code and RAM size fields do not match chip specification