A lot of stuff

BUILD.md

@@ -0,0 +1,26 @@
+# Build
+
+## Install zephyr SDK
+> See [INSTALL.md](INSTALL.md) for installing the SDK.
+
+## Build the app without MCUboot
+
+```bash
+source ../env.sh
+west build -p -b nrf52840_qalmari
+```
+
+## Build everything
+
+```bash
+source ../env.sh
+west build -p -b nrf52840_qalmari --sysbuild
+```
+
+## Generate your own key for MCUboot
+```bash
+openssl genrsa -out key.pem 2048
+```
+
+## Flash the binary to the device
+> See [FLASH.md](FLASH.md) for installing the app to the device.

CMakeLists.txt

@@ -5,7 +5,13 @@ cmake_minimum_required(VERSION 3.20.0)
 set(BOARD_ROOT ${CMAKE_CURRENT_SOURCE_DIR})
 
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
-project(meditation)
+project(chill)
+
+# Zephyr has way too many deprecated warnings
+target_compile_options(app PRIVATE
+    -Wno-deprecated-declarations
+    -Wno-unused-parameter
+)
 
 FILE(GLOB app_sources src/*.c)
 target_sources(app PRIVATE ${app_sources})

FLASH.md

@@ -0,0 +1,18 @@
+# Flashing the device
+To flash `merged_<device>.hex`, you need a debugger and probably know how to do it.
+
+DAPlink with openocd or pyocd works.
+
+# Flashing `bin/zephyr.signed.hex`
+You need `NRFconnect` and install `Programmer` inside NRFconnect app.
+## 1. Choose the MCUboot device.
+![image](pics/1.open_device.png)
+
+## 2. Open the signed hex file
+![image](pics/2.open_file.png)
+
+## 3. Write the file to device
+![image](pics/3.write_file.png)
+
+## 4. Success!
+![image](pics/4.done.png)

INSTALL.md

@@ -0,0 +1,82 @@
+# Installation Guide
+
+## Prerequisites
+
+Install required tools:
+
+```bash
+python -m venv venv
+source venv/bin/activate
+pip install west pyserial pyocd
+```
+
+## Project Structure
+
+```
+zephyr/
+├── venv/                   # Python virtual environment
+├── sdk/zephyr/             # Zephyr source code
+├── zephyr-sdk-1.0.1/       # Zephyr SDK installation
+├── chill/                  # This project
+└── env.sh                  # Environment setup script
+```
+
+## Setup
+
+### 1. Clone Zephyr SDK
+
+```bash
+# in zephyr/
+mkdir sdk
+cd sdk
+git clone https://github.com/zephyrproject-rtos/zephyr.git
+```
+
+### 2. Install Zephyr SDK
+
+```bash
+# in zephyr/
+wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.1/zephyr-sdk-1.0.1_linux-x86_64_gnu.tar.xz
+tar xf zephyr-sdk-1.0.1_linux-x86_64_gnu.tar.xz
+```
+
+### 3. Initialize West
+
+```bash
+# in zephyr/sdk/zephyr
+west init -l .
+west update
+```
+
+### 4. Export a Zephyr CMake package.
+
+```bash
+# in zephyr/sdk/zephyr
+west zephyr-export
+```
+
+### 5. Install Python dependencies using west packages.
+
+```bash
+# in zephyr/sdk/zephyr
+west packages pip --install
+```
+
+### 6. Create env.sh
+
+Create `zephyr/env.sh` with the following content:
+
+```bash
+#!/bin/bash
+
+SCRIPT_DIR=$(dirname "$(readlink -f "$0")")
+
+export ZEPHYR_BASE="${SCRIPT_DIR}/sdk/zephyr"
+echo "export ZEPHYR_BASE=\"${SCRIPT_DIR}/sdk/zephyr\""
+
+export ZEPHYR_SDK_INSTALL_DIR="${SCRIPT_DIR}/zephyr-sdk-1.0.1"
+echo "export ZEPHYR_SDK_INSTALL_DIR=\"${SCRIPT_DIR}/zephyr-sdk-1.0.1\""
+
+source "${SCRIPT_DIR}/venv/bin/activate"
+echo "source \"${SCRIPT_DIR}/venv/bin/activate\""
+```

NOTES.md

@@ -1,16 +1,48 @@
-## client
+## Serial client
 Prefer socat to support arrow keys
 ```
 nc 192.168.1.154 7777
 socat -d -d -,raw,echo=0 TCP:192.168.1.154:7777
 ```
 
-## server
+## Serial server
 ```
 socat -d -d /dev/ttyACM0,b115200,raw,echo=0 tcp-listen:7777,reuseaddr
 ```
 
-## openocd
+## openocd server
 ```
 openocd -f interface/cmsis-dap.cfg -f target/nrf52.cfg -c "bindto 0.0.0.0"
 ```
+
+## VScode launch.json
+```json
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Zephyr Remote Cortex-Debug (OpenOCD)",
+      "type": "cortex-debug",
+      "request": "launch",
+
+      "executable": "${workspaceFolder}/build/zephyr/zephyr.elf",
+
+      "servertype": "external",
+      "gdbTarget": "192.168.1.154:3333",
+
+      "gdbPath": "/usr/bin/arm-none-eabi-gdb",
+
+      "runToEntryPoint": "main",
+
+      "preLaunchCommands": [
+        "monitor reset halt"
+      ]
+    }
+  ]
+}
+```
+
+## generate key
+```
+openssl genrsa -out key.pem 2048
+```

README.md

@@ -24,4 +24,9 @@ Example 15min and 20s:
 mode set 900000 20000
 ```
 
+## Links
 > See [DEBUG.md](DEBUG.md) for development/test commands.
+
+> See [BUILD.md](BUILD.md) for building the project.
+
+> See [FLASH.md](FLASH.md) for installing the app to the device.

boards/qalmari/nrf52840_qalmari/fstab.dtsi

@@ -12,21 +12,19 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		/* The size of this partition ensures that MCUBoot can be built
+		
-		 * with an RTT console, CDC ACM support, and w/o optimizations.
-		 */
 		boot_partition: partition@0 {
 			label = "mcuboot";
-			reg = <0x00000000 0x00087000>;
+			reg = <0x00000000 0x00014000>;
 		};
 
-		// slot0_partition: partition@12000 {
+		slot0_partition: partition@14000 {
-		// 	label = "image-0";
+			label = "image-0";
-		// 	reg = <0x00012000 0x00075000>;
+			reg = <0x00014000 0x00074000>;
-		// };
+		};
-		slot1_partition: partition@87000 {
+		slot1_partition: partition@88000 {
 			label = "image-1";
-			reg = <0x00087000 0x00075000>;
+			reg = <0x00088000 0x00074000>;
 		};
 		storage_partition: partition@fc000 {
 			label = "storage";

boards/qalmari/nrf52840_qalmari/nrf52840_qalmari.dts

@@ -25,7 +25,7 @@
 		zephyr,bt-c2h-uart = &cdc_acm_uart;
 		zephyr,sram = &sram0;
 		zephyr,flash = &flash0;
-		zephyr,code-partition = &boot_partition;
+		zephyr,code-partition = &slot0_partition;
 		zephyr,ieee802154 = &ieee802154;
 	};
 

key.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQDP8Kl7UkdOutrq
+q/AsCz6muBXAegTTOQ1iEjeefkYOEonNXQV4moMUz8x5ovgQVivR7CQNLGAbrw79
+8o53VHMp2qqYTz3ju7O8UQu284VGAhbqDxfQCDt4RNg8m5reybDmUfnk3zjREJBi
+PJBaScyVgBF4qlRqtxxdJFz7bl4DejCm1mct2L/ZyhfzSHyKxaxIJ2jtQOpdee/L
+OtNII+IfFKJ0b9ZTYG5xEiz2gTI0Umc8fEHmSzlRVj7DevFAcomJKvjxOuF9KfK/
+fi2AyW8FkvlLHXgF7wVVdTRjNlQJd/24Evf3MGj2JykMeWk7Z/OlvzNKp6TjlK6v
+vXxuIsrZAgMBAAECggEAAo11PybM6kn/6vaOXbQLoldLKRA2Y/Nk1ynbFe595KlU
+mLlGGmtnJYfBflLCUc0E/7Ay5xh+24gkGnjyR8O5IC/nfTQn0dZZh/vEtYu6vJfE
++T2TMMIRHNJXhzLvzUFTkxg5hZY559MYuqP8r6cNRF6MmFsa6y5xQjFylMGPlOJS
+7LWP6grR9lTlolhA6HkwLzkQZwk/kISRYP8JplpR6kutkErD9NlSLbj6eAvcK5On
+1g/JBbxH8Rn9PuPAtZK+iahQuViu+1Puvcnu6+wQkIl0H0AAl26ydwpKAbvk4beg
+/if1LEN/7JXdyQZyOPAg1n+jf6BfrzWBjhJZlSpWQQKBgQD6InWJHHvTrydvLOdG
+rqH+YWACYFDlYSBJAnSTl6muDBC2ydl4fybP8Uf3QB9EbrKj1gEXFSNrWihKP5Z6
+TYAcSDRtjBxlygUXt5CBWe/8bSGuGthLsZq4rniVnlZ5OEK4Az6JVyG5wr7lfsRv
+JgPdYcjALaDsnPsGHRFgM8FvkQKBgQDU0Ol/2Ctwfl6SvdLj2T6tSxhYW7nkSNZs
+NpVbaJJNVc9NNRApcnJAdEjL5lPb0C4woucDgvA4cbZbVeldjC4OTJ/etu2xUIau
+43ASV9ut6Mjo9LmwP43E3DTE8mj3a7IaVtCCSKddjYcDJoiB/wEx6M2PgkH3ksA8
+rMu5GcoSyQKBgGDp2QA2uQNbabv5eeI45yrYL4q8Jpu49flTqjdFG8kDg7ZOnqPB
+IBiRM4DopzSsbyprUCDRX9fIJrQdzv+z518N2sJW9um5TB/UT3jOj90Nq275l7Q8
+K+ZCMxZFMtvkoHULTL+Jstd2TOA+LX2jDPxJVq6e/yqt59SGjqTnaJsBAoGAYSAv
+UO+Bc8fYtbP4iZBecIxzQfAq+KrdYWnP5HXnP3BIOf5br+7RgeUQTC6EWy+5xOyz
+7gBWTgxno2ukI9OUOWZzGBv4gxIzRaH7RgPe+JHjD56RGIUI2K1/T9sqWLFICYlR
+hARQjfvHgIKXjmypSPPszPAv1yOcpJRgLcw9UzECgYAu6hI48gLEZsqr69x7oBKl
+SLYsbmx+mzMGZDdd2dVDBF8yRltPYiQ5vHxYdtpTOB7Rw7CGY5xbmu4cVJPZI+I3
+5vS4ab9F9/H71KQzhDgANjI57Gn4GB48SCCZnzRi6HBTCKR7SDxnzUx20FrXmSpt
+oEb0sketlpr2mnCZOwSnmA==
+-----END PRIVATE KEY-----

prj.conf

@@ -10,12 +10,15 @@ CONFIG_SPI=y
 # Serial
 CONFIG_SERIAL=y
 CONFIG_CONSOLE=y
-CONFIG_USB_DEVICE_STACK=y
+CONFIG_UART_CONSOLE=y
-# CONFIG_USB_DEVICE_STACK_NEXT=y
+CONFIG_STDOUT_CONSOLE=y
-CONFIG_USB_CDC_ACM=y
+CONFIG_UART_LINE_CTRL=y
-CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=n
+
-CONFIG_USBD_LOOPBACK_CLASS=y
+# USB
-CONFIG_UDC_BUF_POOL_SIZE=4096
+CONFIG_USB_DEVICE_STACK_NEXT=y
+CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=y
+CONFIG_CDC_ACM_SERIAL_PRODUCT_STRING="SulaJalmari"
+CONFIG_CDC_ACM_SERIAL_PID=0x0004
 
 # Shell
 CONFIG_SHELL=y
@@ -33,10 +36,9 @@ CONFIG_I2C_TARGET=y
 
 # LOG
 CONFIG_LOG=y
-CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_USBD_CDC_ACM_LOG_LEVEL_OFF=y  # This removes a pointless warning
+CONFIG_LOG_DEFAULT_LEVEL=1
 CONFIG_LOG_MODE_IMMEDIATE=y
-CONFIG_USBD_LOG_LEVEL_WRN=y
-CONFIG_UDC_DRIVER_LOG_LEVEL_WRN=y
 
 #ZBUS
 CONFIG_ZBUS=y
@@ -44,3 +46,7 @@ CONFIG_ZBUS_LOG_LEVEL_INF=n
 CONFIG_ZBUS_CHANNEL_NAME=y
 CONFIG_ZBUS_OBSERVER_NAME=y
 CONFIG_ZBUS_MSG_SUBSCRIBER=y
+
+# MCUBoot
+CONFIG_BOOTLOADER_MCUBOOT=y
+CONFIG_MCUBOOT_SIGNATURE_KEY_FILE="key.pem"

src/config.c

@@ -1,7 +1,7 @@
 #include "config.h"
 
 #include <zephyr/drivers/flash.h>
-#include <zephyr/fs/nvs.h>
+#include <zephyr/kvss/nvs.h>
 #include <zephyr/storage/flash_map.h>
 
 #define NVS_ID_CONFIG  1
@@ -34,14 +34,14 @@ static const app_config_t default_config = {
 int config_init(void)
 {
     struct flash_pages_info page;
-    const struct device *dev = FIXED_PARTITION_DEVICE(storage_partition);
+    const struct device *dev = DEVICE_DT_GET(DT_MTD_FROM_FIXED_PARTITION(DT_NODELABEL(storage_partition)));
 
-    flash_get_page_info_by_offs(dev, FIXED_PARTITION_OFFSET(storage_partition), &page);
+    flash_get_page_info_by_offs(dev, DT_REG_ADDR(DT_NODELABEL(storage_partition)), &page);
 
     nvs.flash_device = dev;
-    nvs.offset       = FIXED_PARTITION_OFFSET(storage_partition);
+    nvs.offset       = DT_REG_ADDR(DT_NODELABEL(storage_partition));
     nvs.sector_size  = page.size;
-    nvs.sector_count = FIXED_PARTITION_SIZE(storage_partition) / page.size;
+    nvs.sector_count = DT_REG_SIZE(DT_NODELABEL(storage_partition)) / page.size;
 
     int rc = nvs_mount(&nvs);
     if (rc) {

src/led.c

@@ -90,7 +90,7 @@ const int color_table_size = ARRAY_SIZE(color_table);
 int led_color_from_str(const char *name, struct color_t *out)
 {
     for (int i = 0; i < ARRAY_SIZE(color_table); i++) {
-        if (strcasecmp(color_table[i].name, name) == 0) {
+        if (strncmp(color_table[i].name, name, strlen(color_table[i].name) + 1) == 0) {
             *out = color_table[i].color;
             return 0;
         }
@@ -153,14 +153,6 @@ static float get_brightness(void)
     return b;
 }
 
-static float get_brightness_pwm(void)
-{
-    for (int j = 0; j < NR_LEDS; j++) {
-        set_pwm(leds[j], 0, PWM_RESOLUTION);
-    }
-    return get_brightness();
-}
-
 /**
  * Like set_pwm() but scales `value` by the current ambient brightness before
  * writing. All PWM-facing call sites go through here.

src/main.c

@@ -1,5 +1,4 @@
 #include <zephyr/kernel.h>
-#include <zephyr/usb/usb_device.h>
 #include <zephyr/logging/log.h>
 
 #include "led.h"
@@ -14,12 +13,6 @@ int main(void)
 {
 	int ret;
 
-	ret = usb_enable(NULL);
-	if (ret != 0) {
-		LOG_ERR("Failed to enable USB: %d", ret);
-		return ret;
-	}
-
 	ret = config_init();
 	if (ret != 0) {
 		LOG_ERR("Failed to init config: %d", ret);

sysbuild.conf

@@ -0,0 +1,4 @@
+SB_CONFIG_BOOTLOADER_MCUBOOT=y
+SB_CONFIG_MERGED_HEX_FILES=y
+SB_CONFIG_MCUBOOT_MODE_SINGLE_APP=y
+SB_CONFIG_BOOT_SIGNATURE_KEY_FILE="${APP_DIR}/key.pem"

sysbuild/CMakeLists.txt

@@ -0,0 +1,6 @@
+# Set local board files
+list(APPEND BOARD_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/..)
+
+find_package(Sysbuild REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+project(sysbuild LANGUAGES)

sysbuild/mcuboot.conf

@@ -0,0 +1,19 @@
+CONFIG_BOOT_SIGNATURE_TYPE_RSA=y
+CONFIG_MCUBOOT_INDICATION_LED=y
+CONFIG_MCUBOOT_SERIAL=y
+CONFIG_BOOT_SERIAL_CDC_ACM=y
+
+# New USB stack is too big
+# CONFIG_USB_DEVICE_STACK_NEXT=y
+# CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=y
+# CONFIG_CDC_ACM_SERIAL_PRODUCT_STRING="SulaJalmari MCUBoot"
+# CONFIG_CDC_ACM_SERIAL_PID=0x0004
+
+# Old USB stack
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_DEVICE_PRODUCT="SulaJalmari MCUBoot"
+CONFIG_USB_CDC_ACM=y
+
+# Needed to recognize as MCUboot in nrf connect
+CONFIG_USB_DEVICE_VID=0x1915
+CONFIG_USB_DEVICE_PID=0x5300