<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">FYI: Espressif have (finally) released a test toolchain for our PSRAM issue:<div class=""><br class=""></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><a href="https://github.com/espressif/esp-idf/issues/2892" class="">https://github.com/espressif/esp-idf/issues/2892</a></div><div class=""><br class=""></div><div class=""><a href="https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-90-g26d9621-5.2.0-psramfix-20190605.tar.gz" class="">Linux</a></div><div class=""><a href="https://dl.espressif.com/dl/xtensa-esp32-elf-win32-1.22.0-90-g26d9621-5.2.0-psramfix-20190605.tar.gz" class="">Windows</a></div><div class=""><a href="https://dl.espressif.com/dl/xtensa-esp32-elf-macos-1.22.0-90-g26d9621-5.2.0-psramfix-20190605.tar.gz" class="">OSX</a></div></blockquote><div class=""><br class=""></div><div class="">Apparently, we need to include the following flags:</div><div class=""><br class=""></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><pre style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; font-size: 11.899999618530273px; margin-bottom: 16px; margin-top: 0px; word-wrap: normal; background-color: rgb(246, 248, 250); border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; line-height: 1.45; overflow: auto; padding: 16px; caret-color: rgb(36, 41, 46); color: rgb(36, 41, 46);" class=""><code style="box-sizing: border-box; font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: transparent; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; margin: 0px; padding: 0px; border: 0px; word-break: normal; display: inline; line-height: inherit; overflow: visible; word-wrap: normal;" class="">CFLAGS+=-mfix-esp32-psram-cache-dupldst
CXXFLAGS+=-mfix-esp32-psram-cache-dupldst</code></pre></div></blockquote><div class=""><br class=""></div><div class="">This is a preliminary test fix only, so not for general release, but worth trying.</div><div class=""><br class=""></div><div class="">Regards, Mark</div><div class=""><br class=""></div></body></html>