kukucaicndy/embedded_ai_skills/nrf-connect-project-init

which arm-none-eabi-gcc && arm-none-eabi-gcc --version | head -1

JLINK_PATH=""
candidates="$(
  which JLinkExe 2>/dev/null
  echo "/Applications/SEGGER/JLink/JLinkExe"
  find /Applications/SEGGER -name 'JLinkExe' -maxdepth 3 2>/dev/null
  echo "/opt/homebrew/bin/JLinkExe"
  echo "/usr/local/bin/JLinkExe"
  find "$HOME/tools" -name 'JLinkExe' -maxdepth 5 2>/dev/null
  find "$HOME/.local" -name 'JLinkExe' -maxdepth 5 2>/dev/null
)"
while IFS= read -r p; do
  if [ -n "$p" ] && [ -x "$p" ]; then JLINK_PATH="$p"; break; fi
done <<< "$candidates"
echo "JLinkExe: ${JLINK_PATH:-NOT_FOUND}"

WEST_BIN=""
for p in "$(which west 2>/dev/null)" \
         "$HOME/Library/Python/3.9/bin/west" \
         "$HOME/Library/Python/3.10/bin/west" \
         "$HOME/Library/Python/3.11/bin/west" \
         "$HOME/.local/bin/west"; do
  if [ -n "$p" ] && [ -x "$p" ]; then WEST_BIN="$p"; break; fi
done
echo "west: ${WEST_BIN:-NOT_FOUND}"

test -d "$HOME/ncs/.west" && echo "NCS: $HOME/ncs" || echo "NCS: NOT_FOUND"

export PATH="<WEST_BIN_DIR>:<JLINK_BIN_DIR>:$PATH"
source "$HOME/ncs/zephyr/zephyr-env.sh"

JLinkExe -NoGui 1 -device nRF52840_xxAA -if SWD -speed 4000 -autoconnect 1 -CommanderScript /dev/stdin <<< "connect\nexit" 2>&1 | grep -E "CPUID|Device|Found"

# 查找板卡 DTS 文件
find $NCS_DIR/zephyr/boards -path "*<board_name>*" -name "*.dts" | head -3
# 读取主 DTS 和 pinctrl dtsi

<project>/
├── CMakeLists.txt        # 顶层 CMake
├── prj.conf              # Zephyr Kconfig 配置
├── boards/
│   └── <board>.overlay   # 设备树 overlay（引脚映射）
└── src/
    └── main.c / main.cpp # 应用入口

cmake_minimum_required(VERSION 3.20)
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(<project_name>)
 
target_sources(app PRIVATE src/main.c)

# GPIO
CONFIG_GPIO=y
 
# UART / 串口控制台
CONFIG_SERIAL=y
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y
 
# 打印输出
CONFIG_PRINTK=y
 
# Bootloader 偏移（如有 UF2 bootloader）
# CONFIG_FLASH_LOAD_OFFSET=0x26000

#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/sys/printk.h>
 
/* LED 引脚 - 根据 Step 6 检查结果填充 */
#define LED_NODE DT_ALIAS(led0)
static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED_NODE, gpios);
 
int main(void)
{
    if (!device_is_ready(led.port)) {
        printk("LED device not ready\n");
        return -1;
    }
 
    gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
 
    printk("<project_name> started\n");
 
    while (1) {
        gpio_pin_toggle_dt(&led);
        printk("tick\n");
        k_msleep(1000);
    }
 
    return 0;
}

/ {
    aliases {
        /* 将 led0 指向板卡已有的 LED 节点（如 led2 = P0.15） */
        led0 = &led2;
    };
};

/ {
    aliases {
        led0 = &user_led;
    };
 
    user_led: led {
        compatible = "gpio-leds";
        user_led_0: led_0 {
            gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
            label = "User LED";
        };
    };
};

&pinctrl {
    uart0_custom: uart0_custom {
        group1 {
            psels = <NRF_PSEL(UART_TX, 0, 6)>;
        };
        group2 {
            psels = <NRF_PSEL(UART_RX, 0, 8)>;
            bias-pull-up;
        };
    };
};
 
&uart0 {
    status = "okay";
    current-speed = <115200>;
    pinctrl-0 = <&uart0_custom>;
    pinctrl-1 = <&uart0_sleep>;
    pinctrl-names = "default", "sleep";
};

export PATH="<WEST_BIN_DIR>:<JLINK_BIN_DIR>:$PATH"
source "$HOME/ncs/zephyr/zephyr-env.sh"

cd <project_path>
west build -b <board_name> . --pristine

west flash --runner jlink

# 生成 JLink 命令脚本
cat > /tmp/flash.jlink << 'EOF'
device <CHIP>_xxAA
if SWD
speed 4000
connect
loadfile <project_path>/build/merged.hex
r
g
exit
EOF
 
# 执行烧录（使用 Step 1.2 记录的 JLINK_PATH）
<JLINK_PATH> -NoGui 1 -CommandFile /tmp/flash.jlink

# macOS
screen /dev/tty.usbmodem* 115200
# 或
screen /dev/tty.SLAB_USBtoUART* 115200
 
# Linux
screen /dev/ttyACM* 115200