Hello Support Team,
I hope this message finds you well.
I've been experimenting with the LittleFS sample available at the following link: LittleFS Sample Code. The sample works flawlessly with internal memory. However, after integrating it into my project, I made a few modifications to better suit my needs:
- Utilized the MCU
- Implemented external flash
- Enabled BLE functionality
Despite my efforts, I am encountering issues with incorrect partition information for the LittleFS storage. Here are the details of my current configuration:
I found various article but no solution and also i see wrong partition information
littlefs_storage:
address: 0x00700000
end_address: 0x00800000
placement:
before:
- end
region: external_flash
size: 0x00100000
// To get started, press Ctrl+Space (or Option+Esc) to bring up the completion menu and view the available nodes.
// You can also use the buttons in the sidebar to perform actions on nodes.
// Actions currently available include:
// * Enabling / disabling the node
// * Adding the bus to a bus
// * Removing the node
// * Connecting ADC channels
// For more help, browse the DeviceTree documentation at https://docs.zephyrproject.org/latest/guides/dts/index.html
// You can also visit the nRF DeviceTree extension documentation at https://nrfconnect.github.io/vscode-nrf-connect/devicetree/nrfdevicetree.html
/ {
zephyr,user {
io-channels = <&adc 0>;
};
};
&comp {
compatible = "nordic,nrf-lpcomp";
status = "okay";
};
&adc {
#address-cells = <1>;
#size-cells = <0>;
status ="okay";
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1_6";
zephyr,reference = "ADC_REF_INTERNAL";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_SAADC_AIN2>;
};
channel@1 {
reg = <1>;
zephyr,gain = "ADC_GAIN_1_6";
zephyr,reference = "ADC_REF_INTERNAL";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_SAADC_AIN3>;
};
// Channel 2 - Used for manual battery power reading
channel@2 {
reg = <2>;
zephyr,gain = "ADC_GAIN_1_6";
zephyr,reference = "ADC_REF_INTERNAL";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_SAADC_AIN7>;
};
};
/ {
aliases {
sw0 = &button1;
led0 = &green_led;
spi-flash0 = &is25lp064a;
adc0 = &adc;
};
chosen {
zephyr,extflash = &is25lp064a;
nordic,pm-ext-flash = &is25lp064a;
zephyr,settings-partition = &settings_partition;
};
buttons {
compatible = "gpio-keys";
button1: button_1 {
gpios = <&gpio1 1 GPIO_PULL_UP>;
label = "Push button switch 1";
};
};
};
&qspi {
pinctrl-0 = <&qspi_default>;
pinctrl-1 = <&qspi_sleep>;
pinctrl-names = "default", "sleep";
is25lp064a: is25lp064a@0 {
compatible = "nordic,qspi-nor";
reg = <0>;
//writeoc = "pp4io";
//readoc = "read4io";
sck-frequency = <133000000>;
jedec-id = [9d 60 17];
size = <8388608>; //8 MB or DT_SIZE_M(8)
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
ext_partition: partition@0 {
label = "image-ext";
reg = <0x00000000 0x00700000>; //7 MB
};
lfs1_partition: partition@700000 {
label = "lfs1";
reg = <0x00700000 0x00100000>; // 1 MB
};
};
};
};
&pinctrl {
qspi_default: qspi_default {
group1 {
psels = <NRF_PSEL(QSPI_SCK,1, 4)>, // SCK
<NRF_PSEL(QSPI_CSN,0, 26)>, // CSN
<NRF_PSEL(QSPI_IO0,0, 30)>, // IO0
<NRF_PSEL(QSPI_IO1,0, 29)>, // IO1
<NRF_PSEL(QSPI_IO2,0, 28)>, // IO2
<NRF_PSEL(QSPI_IO3,1, 2)>; // IO3
};
};
qspi_sleep: qspi_sleep {
group1 {
psels = <NRF_PSEL(QSPI_SCK,1, 4)>, // SCK
<NRF_PSEL(QSPI_CSN,0, 26)>, // CSN
<NRF_PSEL(QSPI_IO0,0, 30)>, // IO0
<NRF_PSEL(QSPI_IO1,0, 29)>, // IO1
<NRF_PSEL(QSPI_IO2,0, 28)>, // IO2
<NRF_PSEL(QSPI_IO3,1, 2)>; // IO3
};
};
};
&is25lp064a {
address-size-32;
};
/ {
fstab {
compatible = "zephyr,fstab";
lfs1: lfs1 {
compatible = "zephyr,fstab,littlefs";
read-size = <16>; //64
prog-size = <16>;//64
cache-size = <64>;
lookahead-size = <32>; //128
block-cycles = <512>; //1024
partition = <&lfs1_partition>;
mount-point = "/lfs1";
automount;
};
};
};
/delete-node/ &storage_partition;
&flash0 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
boot_partition: partition@0 {
label = "mcuboot";
reg = <0x00000000 0x0000C000>;
};
slot0_partition: partition@c000 {
label = "image-0";
reg = <0x0000C000 0x00067000>;
};
slot1_partition: partition@73000 {
label = "image-1";
reg = <0x00073000 0x00067000>;
};
scratch_partition: partition@da000 {
label = "image-scratch";
reg = <0x000da000 0x0001e000>;
};
/*
* The flash starting at 0x000f8000 and ending at
* 0x000fffff is reserved for use by the application.
*/
/*
* Storage partition will be used by FCB/LittleFS/NVS
* if enabled.
*/
settings_partition: partition@f8000 {
label = "settings";
reg = <0x000f8000 0x00008000>;
};
};
};
my code
#define ARCHIVE_FILE_PATH "/lfs1/archive.dat"
#define PARTITION_NODE DT_NODELABEL(lfs1)
#if DT_NODE_EXISTS(PARTITION_NODE)
FS_FSTAB_DECLARE_ENTRY(PARTITION_NODE);
#else /* PARTITION_NODE */
FS_LITTLEFS_DECLARE_DEFAULT_CONFIG(storage);
static struct fs_mount_t lfs_storage_mnt = {
.type = FS_LITTLEFS,
.fs_data = &storage,
.storage_dev = (void *)FIXED_PARTITION_ID(storage_partition),
.mnt_point = "/lfs",
};
#endif /* PARTITION_NODE */
struct fs_mount_t *mp =
#if DT_NODE_EXISTS(PARTITION_NODE)
&FS_FSTAB_ENTRY(PARTITION_NODE)
#else
&lfs_storage_mnt
#endif
;
int data_archive_init(void) {
/* Do not mount if auto-mount has been enabled */
#if !DT_NODE_EXISTS(PARTITION_NODE) || \
!(FSTAB_ENTRY_DT_MOUNT_FLAGS(PARTITION_NODE) & FS_MOUNT_FLAG_AUTOMOUNT)
int rc = fs_mount(mp);
if (rc < 0) {
LOG_ERR("FAIL: mount id %" PRIuPTR " at %s: %d\n",
(uintptr_t)mp->storage_dev, mp->mnt_point, rc);
return rc;
}
LOG_INF("%s mount: %d\n", mp->mnt_point, rc);
#else
LOG_INF("%s automounted\n", mp->mnt_point);
#endif
LOG_INF("Filesystem mounted successfully");
return 0;
}
output
Issues Encountered:
- Enabling Bluetooth in the LittleFS sample app causes the LittleFS to NOT use external flash.*
- Problems with binding external flash (external flash + SPI + OTA). **
I have scoured through various articles, the Zephyr documentation, and forums, including Discord, but have yet to find a viable solution.
Could you please provide guidance or suggestions on resolving these issues?
* Enabling Bluetooth to the Littlefs sample app will make the littlefs **NOT** use external flash.
** External Flash get binding is Issue. (external flash + spi + OTA)
