| /Zephyr-latest/dts/bindings/qspi/ |
| D | st,stm32-qspi.yaml | 2 # SPDX-License-Identifier: Apache-2.0
9 pinctrl-0 = <&quadspi_clk_pe10 &quadspi_ncs_pe11
14 dma-names = "tx_rx";
19 compatible: "st,stm32-qspi"
21 include: [base.yaml, pinctrl-device.yaml]
32 pinctrl-0:
35 pinctrl-names:
55 dma-names:
60 dma-names = "tx_rx";
62 dual-flash:
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| /Zephyr-latest/samples/subsys/nvs/ |
| D | README.rst | 1 .. zephyr:code-sample:: nvs
2 :name: Non-Volatile Storage (NVS)
3 :relevant-api: nvs_high_level_api
5 Store and retrieve data from flash using the NVS API.
11 module for non-volatile (flash) storage. In this application,
12 a counter is incremented on every reboot and stored in flash,
18 * A board with flash support
28 .. zephyr-app-commands::
29 :zephyr-app: samples/subsys/nvs
31 :goals: build flash
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| /Zephyr-latest/drivers/hwinfo/ |
| D | hwinfo_sam.c | 4 * SPDX-License-Identifier: Apache-2.0
26 /* On the Atmel SAM SoC series, the device id is located in the flash
27 * controller. The controller can either present the flash area containing
28 * the code, the unique identifier or the user signature area at the flash
29 * location. Therefore the function reading the device id must be executed
31 * code each time the device id is requested, we do this at boot time at save
32 * the 128-bit value into RAM.
37 uint8_t *flash = (uint8_t *)CONFIG_FLASH_BASE_ADDRESS; in hwinfo_sam_read_device_id() local
40 /* Switch the flash controller to the unique identifier area. The flash in hwinfo_sam_read_device_id()
44 efc->EEFC_FCR = EEFC_FCR_FKEY_PASSWD | EEFC_FCR_FCMD_STUI; in hwinfo_sam_read_device_id()
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| /Zephyr-latest/doc/services/storage/nvs/ |
| D | nvs.rst | 3 Non-Volatile Storage (NVS)
6 Elements, represented as id-data pairs, are stored in flash using a
7 FIFO-managed circular buffer. The flash area is divided into sectors. Elements
9 new sector in the flash area is prepared for use (erased). Before erasing the
10 sector it is checked that identifier - data pairs exist in the sectors in use,
11 if not the id-data pair is copied.
13 The id is a 16-bit unsigned number. NVS ensures that for each used id there is
14 at least one id-data pair stored in flash at all time.
19 Each element is stored in flash as metadata (8 byte) and data. The metadata is
22 of: id, data offset in sector, data length, part (unused), and a CRC. This CRC is
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| /Zephyr-latest/samples/subsys/nvs/src/ |
| D | main.c | 4 * 32 bit integer) and also how to read them back from flash. The reading of
7 * and writing data it also shows how data can be deleted from flash.
10 * 1. A string representing an IP-address: stored at id=1, data="192.168.1.1"
11 * 2. A binary blob representing a key: stored at id=2, data=FF FE FD FC FB FA
13 * 3. A reboot counter (32bit): stored at id=3, data=reboot_counter
14 * 4. A string: stored at id=4, data="DATA" (used to illustrate deletion of
17 * At first boot the sample checks if the data is available in flash and adds
18 * the items if they are not in flash.
21 * flash.
23 * At the 10th reboot the string item with id=4 is deleted (or marked for
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| /Zephyr-latest/include/zephyr/fs/ |
| D | nvs.h | 1 /* NVS: non volatile storage in flash
5 * SPDX-License-Identifier: Apache-2.0
20 * @brief Non-volatile Storage (NVS)
21 * @defgroup nvs Non-volatile Storage (NVS)
30 * @brief Non-volatile Storage Data Structures
31 * @defgroup nvs_data_structures Non-volatile Storage Data Structures
37 * @brief Non-volatile Storage File system structure
40 /** File system offset in flash **/
44 * - high 2 bytes correspond to the sector
45 * - low 2 bytes are the offset in the sector
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| D | zms.h | 3 * SPDX-License-Identifier: Apache-2.0
11 #include <zephyr/drivers/flash.h>
35 /** File system offset in flash */
39 * - high 4 bytes correspond to the sector
40 * - low 4 bytes are the offset in the sector
46 * `erase-block-size` if the device has erase capabilities
55 /** Mutex used to lock flash writes */
57 /** Flash device runtime structure */
59 /** Flash memory parameters structure */
84 * @retval -ERRNO Negative errno code on error
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| /Zephyr-latest/doc/services/storage/flash_map/ |
| D | flash_map.rst | 3 Flash map
7 flash partitions via :c:struct:`flash_area` structures.
9 Each :c:struct:`flash_area` describes a flash partition. The API provides access
10 to a "flash map", which contains predefined flash areas accessible via globally
11 unique ID numbers. The map is created from "fixed-partition" compatible entries
13 for application-specific purposes.
15 This documentation uses "flash area" when referencing single "fixed-partition"
19 which can be used to access the flash device an area is placed on directly
20 with the :ref:`flash API <flash_api>`.
21 Each flash area is characterized by a device it is placed on, offset
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| /Zephyr-latest/dts/bindings/mtd/ |
| D | atmel,at45.yaml | 2 # SPDX-License-Identifier: Apache-2.0
4 description: Atmel AT45 (or compatible) SPI flash
8 include: [spi-device.yaml]
11 jedec-id:
12 type: uint8-array
14 description: JEDEC ID as manufacturer ID (1 byte) and device ID (2 bytes).
19 description: Flash capacity in bits.
21 sector-size:
24 description: Flash sector size in bytes.
26 sector-0a-pages:
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| D | jedec,jesd216.yaml | 2 # Copyright (c) 2019-2020 Nordic Semiconductor ASA
3 # SPDX-License-Identifier: Apache-2.0
5 # Common properties used by nodes describing serial flash devices that
6 # are compatible with the JESD216 Serial Flash Discoverable Parameters
14 # size can be provided directly along with the JEDEC ID of the expected
21 jedec-id:
22 type: uint8-array
23 description: JEDEC ID as manufacturer ID, memory type, memory density
27 description: flash capacity in bits
29 sfdp-bfp:
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| /Zephyr-latest/dts/arm/silabs/ |
| D | efm32hg.dtsi | 1 /* SPDX-License-Identifier: Apache-2.0 */
3 #include <arm/armv6-m.dtsi>
4 #include <zephyr/dt-bindings/gpio/gpio.h>
5 #include <zephyr/dt-bindings/i2c/i2c.h>
10 zephyr,flash-controller = &msc;
14 #address-cells = <1>;
15 #size-cells = <0>;
18 compatible = "arm,cortex-m0+";
24 compatible = "mmio-sram";
28 msc: flash-controller@400c0000 {
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| D | efm32_pg_1b.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <arm/armv7-m.dtsi>
8 #include <zephyr/dt-bindings/gpio/gpio.h>
9 #include <zephyr/dt-bindings/i2c/i2c.h>
14 zephyr,flash-controller = &msc;
18 #address-cells = <1>;
19 #size-cells = <0>;
24 compatible = "mmio-sram";
28 msc: flash-controller@400e0000 {
29 compatible = "silabs,gecko-flash-controller";
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| D | efr32xg13p.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <arm/armv7-m.dtsi>
8 #include <zephyr/dt-bindings/gpio/gpio.h>
9 #include <zephyr/dt-bindings/i2c/i2c.h>
14 zephyr,flash-controller = &msc;
18 #address-cells = <1>;
19 #size-cells = <0>;
22 compatible = "arm,cortex-m4f";
28 compatible = "mmio-sram";
32 msc: flash-controller@400e0000 {
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| D | efm32wg.dtsi | 1 /* SPDX-License-Identifier: Apache-2.0 */
3 #include <arm/armv7-m.dtsi>
4 #include <zephyr/dt-bindings/gpio/gpio.h>
5 #include <zephyr/dt-bindings/i2c/i2c.h>
10 zephyr,flash-controller = &msc;
14 #address-cells = <1>;
15 #size-cells = <0>;
18 compatible = "arm,cortex-m4f";
24 compatible = "mmio-sram";
28 msc: flash-controller@400c0000 {
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| D | efr32fg1p.dtsi | 1 /* SPDX-License-Identifier: Apache-2.0 */
3 #include <arm/armv7-m.dtsi>
4 #include <zephyr/dt-bindings/gpio/gpio.h>
5 #include <zephyr/dt-bindings/i2c/i2c.h>
7 #include <zephyr/dt-bindings/pwm/pwm.h>
11 zephyr,flash-controller = &msc;
15 #address-cells = <1>;
16 #size-cells = <0>;
19 compatible = "arm,cortex-m4f";
25 compatible = "mmio-sram";
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| D | efm32gg12b.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
7 #include <arm/armv7-m.dtsi>
8 #include <zephyr/dt-bindings/gpio/gpio.h>
9 #include <zephyr/dt-bindings/i2c/i2c.h>
15 zephyr,flash-controller = &msc;
19 #address-cells = <1>;
20 #size-cells = <0>;
23 compatible = "arm,cortex-m4f";
29 compatible = "mmio-sram";
33 msc: flash-controller@40000000 {
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| /Zephyr-latest/include/zephyr/storage/ |
| D | flash_map.h | 2 * Copyright (c) 2017-2024 Nordic Semiconductor ASA
6 * SPDX-License-Identifier: Apache-2.0
11 * @brief Public API for flash map
18 * @brief Abstraction over flash partitions/areas and their drivers
20 * @defgroup flash_area_api flash area Interface
28 * This API makes it possible to operate on flash areas easily and
31 * The system contains global data about flash areas. Every area
32 * contains an ID number, offset, and length.
49 * @brief Flash partition
51 * This structure represents a fixed-size partition on a flash device.
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| /Zephyr-latest/subsys/bluetooth/controller/flash/ |
| D | soc_flash_nrf_ticker.c | 4 * SPDX-License-Identifier: Apache-2.0
25 /* delay needed for start execution-window */
38 /* semaphore for synchronization of flash operations */
60 /* Get the ticker instance and ticker id for flash operations */ in ticker_stop_prepare_cb()
81 "Radio is on during flash operation.\n"); in time_slot_callback_work()
84 rc = op_desc->handler(op_desc->context); in time_slot_callback_work()
90 /* Get the ticker instance and ticker id for flash operations */ in time_slot_callback_work()
111 /* Get the ticker instance and ticker id for flash operations */ in time_slot_delay()
114 /* Start a secondary one-shot ticker after ticks_delay, in time_slot_delay()
119 1, /* user id for link layer ULL_HIGH */ in time_slot_delay()
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| /Zephyr-latest/dts/arm/nuvoton/ |
| D | npcx4m3f.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
11 flash0: flash@10088000 {
15 flash1: flash@60000000 {
20 compatible = "mmio-sram";
24 soc-id {
25 device-id = <0x25>;
33 compatible ="nuvoton,npcx-fiu-nor";
38 /* quad spi bus configuration of nor flash device */
39 qspi-flags = <NPCX_QSPI_SW_CS0>;
40 mapped-addr = <0x60000000>;
|
| D | npcx4m8f.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
11 flash0: flash@10060000 {
15 flash1: flash@60000000 {
20 compatible = "mmio-sram";
24 soc-id {
25 device-id = <0x23>;
33 compatible ="nuvoton,npcx-fiu-nor";
38 /* quad spi bus configuration of nor flash device */
39 qspi-flags = <NPCX_QSPI_SW_CS0>;
40 mapped-addr = <0x60000000>;
|
| D | npcx9m3f.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
11 flash0: flash@10080000 {
15 flash1: flash@64000000 {
20 compatible = "mmio-sram";
24 soc-id {
25 device-id = <0x25>;
33 compatible ="nuvoton,npcx-fiu-nor";
38 /* quad spi bus configuration of nor flash device */
39 qspi-flags = <NPCX_QSPI_SW_CS1>;
40 mapped-addr = <0x64000000>;
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| D | npcx9m6f.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
11 flash0: flash@10090000 {
15 flash1: flash@64000000 {
20 compatible = "mmio-sram";
24 soc-id {
25 device-id = <0x21>;
33 compatible ="nuvoton,npcx-fiu-nor";
38 /* quad spi bus configuration of nor flash device */
39 qspi-flags = <NPCX_QSPI_SW_CS1>;
40 mapped-addr = <0x64000000>;
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| D | npcx9m7f.dtsi | 4 * SPDX-License-Identifier: Apache-2.0
11 flash0: flash@10070000 {
15 flash1: flash@64000000 {
20 compatible = "mmio-sram";
24 soc-id {
25 device-id = <0x22>;
31 compatible ="nuvoton,npcx-fiu-nor";
36 /* quad spi bus configuration of nor flash device */
37 qspi-flags = <NPCX_QSPI_SW_CS1>;
38 mapped-addr = <0x64000000>;
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| /Zephyr-latest/tests/subsys/fs/littlefs/src/ |
| D | testfs_lfs.c | 4 * SPDX-License-Identifier: Apache-2.0
65 unsigned int id = (uintptr_t)mp->storage_dev; in testfs_lfs_wipe_partition() local
67 int rc = flash_area_open(id, &pfa); in testfs_lfs_wipe_partition()
70 TC_PRINT("Error accessing flash area %u [%d]\n", in testfs_lfs_wipe_partition()
71 id, rc); in testfs_lfs_wipe_partition()
75 TC_PRINT("Erasing %zu (0x%zx) bytes\n", pfa->fa_size, pfa->fa_size); in testfs_lfs_wipe_partition()
76 rc = flash_area_flatten(pfa, 0, pfa->fa_size); in testfs_lfs_wipe_partition()
80 TC_PRINT("Error wiping flash area %u [%d]\n", in testfs_lfs_wipe_partition()
81 id, rc); in testfs_lfs_wipe_partition()
85 TC_PRINT("Wiped flash area %u for %s\n", id, mp->mnt_point); in testfs_lfs_wipe_partition()
|
| /Zephyr-latest/tests/subsys/dfu/img_util/src/ |
| D | main.c | 5 * SPDX-License-Identifier: Apache-2.0
26 zassert_true(ret == 0, "Flash img init"); in ZTEST()
29 zassert_true(ret == 0, "Flash img init id"); in ZTEST()
31 /* Verify that the default partition ID is IMAGE_1 */ in ZTEST()
33 "Default partition ID is incorrect"); in ZTEST()
37 zassert_true(ret == 0, "Flash img init id"); in ZTEST()
39 zassert_equal(ctx_id.flash_area->fa_id, SLOT0_PARTITION_ID, in ZTEST()
40 "Partition ID is not set correctly"); in ZTEST()
52 zassert_true(ret == 0, "Flash img init"); in ZTEST()
60 printf("Flash driver was not found!\n"); in ZTEST()
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