Hi, I am looking if this is possible and if there is an example code around? 1) The Ethernet (W5500) connects to a device and provides DHCP (DHCP server running on Ethernet port). 2) Data received from Ethernet is processed. 3) Data is then sent out through the WIFI STA (DHCP is from AP). Device <--...

Are you able to connect to Wifi with non PSRAM module?

If you are going to use the IRAM memory there are limitation that you must be aware off. https://esp32.com/viewtopic.php?t=23891#p94825

These are good strategies, I guess there are no possibilities to change the heap allocation strategy of malloc to first get D/IRAM and then switch to DRAM, reason ist that the DRAM section is larger than the D/IRAM section. So if malloc would first allocate from D/IRAM, the large contiguous block fr...

That's a good resource for heap analysis. Unfortunately nothing is said about heap fragmentation and how to best avoid it in order to get a large as possible contiguous block. Any more ideas? :) This should get the largest free block for the different memory types. size_t heap_caps_get_largest_free...

Refer to this for memory allocation https://docs.espressif.com/projects/esp ... alloc.html

Hi, I have ESP32 Rev3 with IDF 4.4.5. If I compile firmware with PSRAM enabled and deployed onto a hardware without PSRAM then wifi will not connect. Is there a way to get that to work? CONFIG_ESP32_REV_MIN_3=y CONFIG_ESP32_SPIRAM_SUPPORT=y CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y CONFIG_SPIRAM_BOOT_INIT...

Hi,

Is there a configuration that would auto detect the SPIRAM speed?

At the moment, the only way is to manually set the setting below to test.

Hi, I have firmware compiled with SPIRAM support but deployed onto ESP32 and ESP32 S3 hardware without PSRAM. One issue I have is that Wifi does not connect, is there any other settings to get this working? The same exact code would work if CONFIG_ESP32_SPIRAM_SUPPORT is set to n IDF 4.4.5 for ESP32...

Thank you for the detailed explanation.