<![CDATA[ESP32 RAM cache issue when using both cores]]>Hi all,

Just wondering if this bug: https://www.neonious-basics.com/index.php/2019/01/27/esp32-wrover-is-fundamentally-broken/ may affect some of the Pycom modules and explain some of the crashes that have been reported here or there?

From what I understand, the issue is related to the use of the top 2 MB of the external 4 MB PSRAM when using both cores. Not sure if this is specific to the ESP32 itself or the WROVER module specifically, though.

More details in this ESP-IDF issue: https://github.com/espressif/esp-idf/issues/2892

]]>https://forum.pycom.io/topic/4441/esp32-ram-cache-issue-when-using-both-coresRSS for NodeSun, 17 May 2026 20:46:05 GMTMon, 25 Feb 2019 11:25:09 GMT60<![CDATA[Reply to ESP32 RAM cache issue when using both cores on Mon, 25 Feb 2019 11:25:09 GMT]]>Hi all,

Just wondering if this bug: https://www.neonious-basics.com/index.php/2019/01/27/esp32-wrover-is-fundamentally-broken/ may affect some of the Pycom modules and explain some of the crashes that have been reported here or there?

From what I understand, the issue is related to the use of the top 2 MB of the external 4 MB PSRAM when using both cores. Not sure if this is specific to the ESP32 itself or the WROVER module specifically, though.

More details in this ESP-IDF issue: https://github.com/espressif/esp-idf/issues/2892

]]>https://forum.pycom.io/post/26178https://forum.pycom.io/post/26178Mon, 25 Feb 2019 11:25:09 GMT