https://devzone.nordicsemi.com/f/nordic-q-a/94318/what-is-the-difference-between-the-nrf52832qfaae0-chip-and-the-nrf52832qfaae1-chip-in-software-developmentI used the NRF52832QFAAE1 chip for Bluetooth development before, and later changed it to NRF52832QFAAE0 to use the same software program, but NRF52832QFAAE0 can download the program through JLINK, but it cannot work? In keil5, simulation debugging isen-USTelligent Community 13Mon, 28 Nov 2022 13:56:51 GMThttps://devzone.nordicsemi.com/thread/397893?ContentTypeID=1Mon, 28 Nov 2022 13:56:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:532c6273-7d3e-42da-9893-306216dcbfb7Einar Thorsrud<p>Hi,</p> <p>There is no significant difference between&nbsp;NRF52832QFAAE0 and&nbsp;NRF52832QFAAE1, as all E devices are revision 2 (see <a href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52832/COMP/nrf52832/ic_revision_overview.html">SoC revisions and variants</a>).</p> <p>I am curious if&nbsp;there could be a typo or misread somehow, and that the issue is that you have a revision 3 device instead, with build code G (so&nbsp;something like&nbsp;NRF52832QFAAG0)? That fits with your description about issues with debugging, as these devices has a new access port protection mechanism that requires&nbsp;updated tools and libraries. See <a href="https://infocenter.nordicsemi.com/pdf/in_142_v1.1.pdf?cp=18_20">IN-142</a> for details.</p> <p>PS: I translated your question to English (see <a href="https://devzone.nordicsemi.com/p/tos">Nordic DevZone Terms of Service</a>).</p><div style="clear:both;"></div>