Hi Team,
I am working on OTA using an external Winbond flash IC (W25Q64) with the nRF52832 controller in NCS SDK version 2.9.2. I have completed all the required configurations, but I am still facing errors during the OTA process.
Currently, I am testing with a simple connectable beacon application. I am sharing all the related files and RTT logs below. Could you please help me identify what is going wrong in the configuration or implementation?
I have shared the logs and files below:
Logs *** Booting MCUboot v2.1.0-dev-12e5ee106034 ***
*** Using nRF Connect SDK v2.9.0-7787b2649840 ***
*** Using Zephyr OS v3.7.99-1f8f3dc29142 ***
[00:00:00.002,777] <inf> mcuboot: Starting bootloader
[00:00:00.003,082] <err> mcuboot: Failed to open flash area ID 1 (image 0 slot 1): -19, cannot continue
files:
-
my_crt2.dts
-
my_crt.overlay
-
my_crt.dtsi
-
mcuboot.conf
-
mcuboot.overlay
Please review them and let me know if there are any issues in the configuration.
my_crt2_dts
/dts-v1/;
#include <nordic/nrf52832_qfaa.dtsi>
#include "my_crt2-pinctrl.dtsi"
/ {
model = "Custom Board auto generated by nRF Connect for VS Code";
compatible = "embel_tech,my-crt2";
chosen {
zephyr,sram = &sram0;
zephyr,flash = &flash0;
zephyr,code-partition = &slot0_partition;
nordic,pm-ext-flash = &w25q64;
};
};
&spi0 {
status = "okay";
compatible = "nordic,nrf-spim";
pinctrl-0 = <&spi0_default>;
pinctrl-1 = <&spi0_sleep>;
pinctrl-names = "default", "sleep";
cs-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
w25q64: w25q64@0 {
compatible = "jedec,spi-nor";
reg = <0>;
status = "okay";
spi-max-frequency = <8000000>;
jedec-id = [ef 40 17];
size = <0x800000>;
sfdp-bfp = [
e5 20 f1 ff ff ff ff 03
44 eb 08 6b 08 3b 04 bb
ee ff ff ff ff ff 00 ff
ff ff 00 ff 0c 20 0f 52
10 d8 00 ff 23 72 f5 00
82 ed 04 cc 44 83 68 44
30 b0 30 b0 f7 c4 d5 5c
00 be 29 ff f0 d0 ff ff
];
has-dpd;
t-enter-dpd = <3000>;
t-exit-dpd = <30000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
slot1_partition: partition@0 {
label = "image-1";
reg = <0x00000000 0x00069000>;
};
};
};
};
&flash0 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
boot_partition: partition@0 {
label = "mcuboot";
reg = <0x00000000 DT_SIZE_K(48)>;
};
slot0_partition: partition@c000 {
label = "image-0";
reg = <0x0000c000 0x00069000>;
};
storage_partition: partition@75000 {
label = "storage";
reg = <0x00075000 DT_SIZE_K(44)>;
};
};
};
&gpiote {
status = "okay";
};
&gpio0 {
status = "okay";
gpiote-instance = <&gpiote>;
};
my_crt2_overlay-
/* STEP 2.1 - Add external flash to application */
&w25q64 {
status = "okay";
};
/ {
chosen {
nordic,pm-ext-flash = &w25q64;
};
};
my_crt_dtsi
/* SPI2 - replace pin numbers with your actual pins */
spi0_default: spi0_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 30)>,
<NRF_PSEL(SPIM_MOSI, 0, 29)>,
<NRF_PSEL(SPIM_MISO, 0, 27)>;
};
};
spi0_sleep: spi0_sleep {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 30)>,
<NRF_PSEL(SPIM_MOSI, 0, 29)>,
<NRF_PSEL(SPIM_MISO, 0, 27)>;
low-power-enable;
};
};
};
mcuboot.conf-
# ── Clock (nRF52832 custom board: no 32 kHz XTAL) ───────────────
CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
# ── Console (RTT only, no UART on custom board) ──────────────────
CONFIG_SERIAL=n
CONFIG_UART_CONSOLE=n
CONFIG_CONSOLE=y
CONFIG_RTT_CONSOLE=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG=y
CONFIG_LOG_BACKEND_RTT=y
# ── SPI NOR driver (Exercise step 1.2) ──────────────────────────
CONFIG_GPIO=y
CONFIG_SPI=y
CONFIG_SPI_NOR=y
CONFIG_SPI_NOR_SFDP_DEVICETREE=y
CONFIG_FLASH=y
CONFIG_SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
CONFIG_NORDIC_QSPI_NOR=n
CONFIG_MULTITHREADING=y
# ── nRF52832 PAN-58 (SPIM errata workaround) ────────────────────
CONFIG_SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58=y
# ── MCUboot sectors (Exercise step 4) ───────────────────────────
CONFIG_BOOT_MAX_IMG_SECTORS=512
mcuboot.overlay
&w25q64 {
status = "okay";
};
/ {
chosen {
nordic,pm-ext-flash = &w25q64;
};
};
