diff options
| -rw-r--r-- | ports/esp32/network_wlan.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/ports/esp32/network_wlan.c b/ports/esp32/network_wlan.c index e1d16b419..e9918efa5 100644 --- a/ports/esp32/network_wlan.c +++ b/ports/esp32/network_wlan.c @@ -41,6 +41,7 @@ #include "esp_wifi.h" #include "esp_log.h" +#include "esp_psram.h" #ifndef NO_QSTR #include "mdns.h" @@ -206,6 +207,23 @@ void esp_initialise_wifi(void) { wlan_ap_obj.active = false; wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT(); + #if CONFIG_SPIRAM_IGNORE_NOTFOUND + if (!esp_psram_is_initialized()) { + // If PSRAM failed to initialize, disable "Wi-Fi Cache TX Buffers" + // (default SPIRAM config ESP32_WIFI_CACHE_TX_BUFFER_NUM==32, this is 54,400 bytes of heap) + cfg.cache_tx_buf_num = 0; + cfg.feature_caps &= ~CONFIG_FEATURE_CACHE_TX_BUF_BIT; + + // Set some other options back to the non-SPIRAM default values + // to save more RAM. + // + // These can be determined from ESP-IDF components/esp_wifi/Kconfig and the + // WIFI_INIT_CONFIG_DEFAULT macro + cfg.tx_buf_type = 1; // Dynamic, this "magic number" is defined in IDF KConfig + cfg.static_tx_buf_num = 0; // Probably don't need, due to tx_buf_type + cfg.dynamic_tx_buf_num = 32; // ESP-IDF default value (maximum) + } + #endif ESP_LOGD("modnetwork", "Initializing WiFi"); esp_exceptions(esp_wifi_init(&cfg)); esp_exceptions(esp_wifi_set_storage(WIFI_STORAGE_RAM)); |