Hello
I am using the nRF9160-DK and I would like to access the external flash memory (mx25r6435f), as a FAT format file system. To do that I have made a 'test project' to access the file system from the SHELL, as a starting point.
I can access the flash memory successfully using the flash command in the shell, as you can see in the following picture.
But when I try to mount the filesystem it gives me the error code -5, as you can see in the next picture.
The project code:
main.c
#define LOG_LEVEL CONFIG_LOG_DEFAULT_LEVEL
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(app);
int main(void)
{
return 0;
}
prj.conf
CONFIG_FLASH=y CONFIG_LOG=y CONFIG_FS_LOG_LEVEL_DBG=y CONFIG_FLASH_LOG_LEVEL_DBG=y CONFIG_HEAP_MEM_POOL_SIZE=16384 CONFIG_SHELL=y CONFIG_SHELL_LOG_LEVEL_INF=y CONFIG_FILE_SYSTEM=y CONFIG_FILE_SYSTEM_SHELL=y CONFIG_FILE_SYSTEM_SHELL_TEST_COMMANDS=y CONFIG_FAT_FILESYSTEM_ELM=y CONFIG_FLASH_MAP=y CONFIG_FLASH_PAGE_LAYOUT=y CONFIG_MPU_ALLOW_FLASH_WRITE=y CONFIG_PM_OVERRIDE_EXTERNAL_DRIVER_CHECK=y
nrf9160dk_nrf9160_ns.dts
/dts-v1/;
#include <nordic/nrf9160ns_sica.dtsi>
#include "nrf9160dk_nrf9160_common.dtsi"
#include "nrf9160dk_nrf9160_common_0_14_0.dtsi"
/delete-node/ &storage_partition;
&spi3 {
cs-gpios = <&arduino_header 16 GPIO_ACTIVE_LOW>, /* D10 */
<&gpio0 25 GPIO_ACTIVE_LOW>;
mx25r64: mx25r6435f@1 {
compatible = "jedec,spi-nor";
reg = <1>;
status = "okay";
spi-max-frequency = <8000000>;
jedec-id = [c2 28 17];
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
];
size = <67108864>;
mxicy,mx25r-power-mode = "high-performance";
};
};
&mx25r64 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
storage_partition: partition@0 {
label = "storage";
reg = <0x00000000 0x08000000>;
};
};
};
/ {
aliases {
ext-flash = &mx25r64;
};
chosen {
nordic,pm-ext-flash = &mx25r64;
zephyr,flash = &flash0;
zephyr,sram = &sram0_ns;
zephyr,code-partition = &slot0_ns_partition;
};
msc_disk0 {
compatible = "zephyr,flash-disk";
partition = <&storage_partition>;
disk-name = "NAND";
cache-size = <4096>;
};
};
/* Disable UART1, because it is used by default in TF-M */
&uart1 {
status = "disabled";
};
nrf9160dk_nrf9160_ns.overlay
&mx25r64 {
status = "okay";
};
CMakeLists.txt
cmake_minimum_required(VERSION 3.20.0)
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(flash_test)
target_sources(app PRIVATE src/main.c)
To build the project I am using the nrf9160dk_nrf9160_ns Board with the nRFConnect SDK v2.5.1
Is there something wrong in the configuration files? I can not figure out why it does not mount the device.
Thank you
