Hello,
I am using W25Q512NW (https://www.winbond.com/resource-files/W25Q512NW%20RevB%2007192021.pdf) in my custom board. I want to store the sensor data in this flash.
My custom board use the nRF5340 MCU and the version of the nrf connect sdk is V2.5.2.
the problem i am facing that i am not able to read the data from the flash.
*** Booting nRF Connect SDK v2.5.2 *** [00:00:00.252,868] <inf> main: iMedrix External flash Application Started. Device name: w25q512nw@0 Data written. Good!! 23 22 33 44 55 66 77 88 Data read. Good!! FF FF FF FF FF FF FF FF Data not matched..!! JEDEC ID : EF 60 20
In above log, i am writing 8 bytes and also read those 8 bytes. but when i read data from the flash i am getting only FF.
And when i read the JEDEC id of the flash, i am getting right JEDEC id.
Here is the prj.conf file.
# Logger module CONFIG_USE_SEGGER_RTT=y CONFIG_RTT_CONSOLE=y CONFIG_LOG_BACKEND_RTT=y CONFIG_LOG=y CONFIG_LOG_MODE_DEFERRED=y CONFIG_LOG_SPEED=y CONFIG_UART_CONSOLE=n CONFIG_DEBUG=y # spi Configuration CONFIG_SPI=y #External flash configuration CONFIG_FLASH=y CONFIG_FLASH_JESD216_API=y CONFIG_FLASH_PAGE_LAYOUT=y CONFIG_NEWLIB_LIBC=y
Here is the .overlay file below.
&qspi {
status = "okay";
pinctrl-0 = <&qspi_default>;
pinctrl-1 = <&qspi_sleep>;
pinctrl-names = "default", "sleep";
w25q512: w25q512nw@0 {
compatible = "nordic,qspi-nor";
reg = <0>;
/* MX25R64 supports only pp and pp4io */
writeoc = "pp4io";
// writeoc = "pp4o";
/* MX25R64 supports all readoc options */
readoc = "read4io";
sck-frequency = <8000000>;
// jedec-id = [c2 28 17];
jedec-id = [EF 60 20];
sfdp-bfp = [
e5 20 fb ff ff ff ff 1f 44 eb 08 6b 08 3b 42 bb
fe ff ff ff ff ff 00 00 ff ff 40 eb 0c 20 0f 52
10 d8 00 00 33 02 a6 00 81 e7 14 d9 e9 63 76 33
7a 75 7a 75 f7 bd d5 5c 19 f7 5d ff e9 70 f9 a5
];
size = <536870912>;
// address-size-32;
has-dpd;
// t-enter-dpd = <10000>;
// t-exit-dpd = <35000>;
t-enter-dpd = <3000>;
t-exit-dpd = <30000>;
};
};
Please give me your suggestion in this.
Let me know if any modification is required.
Thank you in advance.
Gautam.