Pico 2 W OTA Update Example

CMakeLists.txt

@@ -47,6 +47,9 @@ function(add_subdirectory_exclude_platforms NAME)
     add_subdirectory(${NAME})
 endfunction()
 
+# Set signing file for entire project
+set_property(GLOBAL PROPERTY PICOTOOL_SIGFILE "${CMAKE_CURRENT_LIST_DIR}/sample_keys/private.pem")
+
 # Add blink example
 add_subdirectory_exclude_platforms(blink)
 add_subdirectory_exclude_platforms(blink_simple)

bootloaders/encrypted/CMakeLists.txt

@@ -53,7 +53,7 @@ add_linker_script(enc_bootloader "0x20070000" "64k")
 pico_set_otp_key_output_file(enc_bootloader ${CMAKE_CURRENT_BINARY_DIR}/otp.json)
 
 # sign, hash, and clear SRAM
-pico_sign_binary(enc_bootloader ${CMAKE_CURRENT_LIST_DIR}/private.pem)
+pico_sign_binary(enc_bootloader)
 pico_hash_binary(enc_bootloader)
 pico_load_map_clear_sram(enc_bootloader)
 
@@ -87,7 +87,7 @@ pico_set_binary_type(hello_serial_enc no_flash)
 add_linker_script(hello_serial_enc "0x20000000" "448k")
 
 # sign, hash, and encrypt
-pico_sign_binary(hello_serial_enc ${CMAKE_CURRENT_LIST_DIR}/private.pem)
+pico_sign_binary(hello_serial_enc)
 pico_hash_binary(hello_serial_enc)
 pico_encrypt_binary(hello_serial_enc ${CMAKE_CURRENT_LIST_DIR}/privateaes.bin)
 

pico_w/wifi/CMakeLists.txt

@@ -21,8 +21,9 @@ else()
     add_subdirectory_exclude_platforms(mqtt)
 
     if (NOT PICO_MBEDTLS_PATH)
-        message("Skipping tls examples as PICO_MBEDTLS_PATH is not defined")
+        message("Skipping some examples as PICO_MBEDTLS_PATH is not defined")
     else()
         add_subdirectory_exclude_platforms(tls_client)
+        add_subdirectory_exclude_platforms(ota_update rp2040)
     endif()
 endif()

pico_w/wifi/ota_update/CMakeLists.txt

@@ -0,0 +1,55 @@
+add_executable(picow_ota_update_background
+        picow_ota_update.c
+        )
+target_compile_definitions(picow_ota_update_background PRIVATE
+        WIFI_SSID=\"${WIFI_SSID}\"
+        WIFI_PASSWORD=\"${WIFI_PASSWORD}\"
+        PICO_CRT0_IMAGE_TYPE_TBYB=1
+        )
+target_include_directories(picow_ota_update_background PRIVATE
+        ${CMAKE_CURRENT_LIST_DIR}
+        ${CMAKE_CURRENT_LIST_DIR}/.. # for our common lwipopts
+        )
+target_link_libraries(picow_ota_update_background
+        pico_cyw43_arch_lwip_threadsafe_background
+        pico_stdlib
+        pico_sha256
+        boot_uf2_headers
+        )
+
+pico_use_wifi_firmware_partition(picow_ota_update_background)
+
+pico_hash_binary(picow_ota_update_background)
+pico_sign_binary(picow_ota_update_background)
+# pico_set_binary_type(picow_ota_update_background no_flash)
+# pico_package_uf2_output(picow_ota_update_background 0x10000000)
+
+pico_add_extra_outputs(picow_ota_update_background)
+
+add_executable(picow_ota_update_poll
+        picow_ota_update.c
+        )
+target_compile_definitions(picow_ota_update_poll PRIVATE
+        WIFI_SSID=\"${WIFI_SSID}\"
+        WIFI_PASSWORD=\"${WIFI_PASSWORD}\"
+        PICO_CRT0_IMAGE_TYPE_TBYB=1
+        )
+target_include_directories(picow_ota_update_poll PRIVATE
+        ${CMAKE_CURRENT_LIST_DIR}
+        ${CMAKE_CURRENT_LIST_DIR}/.. # for our common lwipopts
+        )
+target_link_libraries(picow_ota_update_poll
+        pico_cyw43_arch_lwip_poll
+        pico_stdlib
+        pico_sha256
+        boot_uf2_headers
+        )
+
+pico_use_wifi_firmware_partition(picow_ota_update_poll)
+
+pico_hash_binary(picow_ota_update_poll)
+pico_sign_binary(picow_ota_update_poll)
+# pico_set_binary_type(picow_ota_update_background no_flash)
+# pico_package_uf2_output(picow_ota_update_background 0x10000000)
+
+pico_add_extra_outputs(picow_ota_update_poll)

pico_w/wifi/ota_update/lwipopts.h

@@ -0,0 +1,10 @@
+#ifndef _LWIPOPTS_H
+#define _LWIPOPTS_H
+
+// Generally you would define your own explicit list of lwIP options
+// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html)
+//
+// This example uses a common include to avoid repetition
+#include "lwipopts_examples_common.h"
+
+#endif

pico_w/wifi/ota_update/main.json

@@ -0,0 +1,64 @@
+{
+  "version": [1, 0],
+  "unpartitioned": {
+    "families": ["absolute"],
+    "permissions": {
+      "secure": "rw",
+      "nonsecure": "rw",
+      "bootloader": "rw"
+    }
+  },
+  "partitions": [
+    {
+      "name": "Main A",
+      "id": 0,
+      "size": "1744K",
+      "families": ["rp2350-arm-s", "rp2350-riscv"],
+      "permissions": {
+        "secure": "rw",
+        "nonsecure": "rw",
+        "bootloader": "rw"
+      }
+    },
+    {
+      "name": "Main B",
+      "id": 0,
+      "size": "1744K",
+      "families": ["rp2350-arm-s", "rp2350-riscv"],
+      "permissions": {
+        "secure": "rw",
+        "nonsecure": "rw",
+        "bootloader": "rw"
+      },
+      "link": ["a", 0]
+    },
+    {
+      "name": "Firmware A",
+      "id": "0x776966696669726d",
+      "start": "3500k",
+      "size": "240K",
+      "families": ["data"],
+      "permissions": {
+        "secure": "rw",
+        "nonsecure": "rw",
+        "bootloader": "rw"
+      },
+      "ignored_during_riscv_boot": true,
+      "no_reboot_on_uf2_download": true
+    },
+    {
+      "name": "Firmware B",
+      "id": 12345,
+      "size": "240K",
+      "families": ["data"],
+      "permissions": {
+        "secure": "rw",
+        "nonsecure": "rw",
+        "bootloader": "rw"
+      },
+      "link": ["a", 2],
+      "ignored_during_riscv_boot": true,
+      "no_reboot_on_uf2_download": true
+    }
+  ]
+}