Enable build for c3, change default board

Author: gminn

CMakeLists.txt

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Default board
-set(BOARD esp32c3_devkitm)
+set(BOARD esp32s3_devkitm/esp32s3/procpu)
 
 cmake_minimum_required(VERSION 3.20.0)
 

README.md

@@ -4,8 +4,10 @@ This sample app is based on the Zephyr `samples/net/wifi` example. It
 demonstrates a Zephyr + ESP32 integration with the Memfault SDK. It has been
 tested on the following boards:
 
-- `esp32c3_devkitm` (default board)
-- `esp32s3_devkitm/esp32s3/procpu`
+- `esp32s3_devkitm/esp32s3/procpu` (default board)
+- `esp32c3_devkitm`*
+
+\* _NOTE: Currently does not have support for data upload. Export chunks to memfault with `mflt export` and upload via the [chunks debug log](https://mflt.io/chunks-debug).
 
 ## Getting Started
 

boards/esp32c3_devkitm.conf

@@ -11,4 +11,12 @@ CONFIG_NET_IPV4=y
 CONFIG_NET_DHCPV4=y
 CONFIG_ESP32_WIFI_STA_AUTO_DHCPV4=y
 
-CONFIG_NET_LOG=y
+# Override selections from prj.conf to save space on this chip
+CONFIG_LOG=y
+CONFIG_NET_LOG=n
+CONFIG_MEMFAULT_LOGGING_ENABLE=n
+CONFIG_NET_SHELL=n
+
+# TODO: Add support for TLS on this chip
+# Removed to free up RAM and allow build check to succeed.
+CONFIG_MBEDTLS_HEAP_SIZE=0

prj.conf

@@ -60,6 +60,7 @@ CONFIG_MBEDTLS_HEAP_SIZE=30000
 CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN=4096
 CONFIG_MBEDTLS_MEMORY_DEBUG=y
 CONFIG_MBEDTLS_SHELL=y
+CONFIG_MBEDTLS_AES_ROM_TABLES=y
 
 # More verbose Memfault component logs
 CONFIG_MEMFAULT_LOG_LEVEL_DBG=y

west.yml

@@ -13,4 +13,4 @@ manifest:
     - name: memfault-firmware-sdk
       url: https://github.com/memfault/memfault-firmware-sdk
       path: modules/lib/memfault-firmware-sdk
-      revision: 1.11.2
+      revision: 1.11.4