nrfjprog can't read/write/erase correctly nrf52840 MX25R6435F QSPI

[alexisS]

Greetings!

Using the NRF52840 PDK, I succesfully erase, write and read without any modifications!

I have custom boards which involved a NRF52840 and a MX25R6435F (so same setup as the PDK), I just made modifications on the QspiDefault.ini since my pinout is different.

I try to erase all the flash chip or just one page but nrfjprog doesn't returned me any errors (so success ?) but it has no effects since I can read the chip which gives me 999999999999....9

I also try the --qspicustominit, different write and read mode but no changes.

(Assuming the wires are correctly solde ); channel 0 is clock, channel 1 is DIO0, channel 2 is DIO1 ...

This is the result for running a read of 8 bytes:

Thanks for your time.

[Jørgen Holmefjord]

Hi,

Are you able to program the board using nrfjprog?

Could you provide the log file from nrfjprog (add the parameter --log and provide file log.log)? Please also upload scematics for your board.

Best regards,
Jørgen

[Jørgen Holmefjord]

Can you post the QspiDefault.ini file that you used?

[alexisS]

of course; like I said previously it's the default one with just some pin changing to match my design

; nrfjprog.exe configuration file.

[DEFAULT_CONFIGURATION]
; Define the capacity of the flash memory device in bytes. Set to 0 if no external memory device is present in your board.
MemSize = 0x800000

; Define the desired ReadMode. Valid options are FASTREAD, READ2O, READ2IO, READ4O and READ4IO
ReadMode = READ4IO

; Define the desired WriteMode. Valid options are PP, PP2O, PP4O and PP4IO
WriteMode = PP4IO

; Define the desired AddressMode. Valid options are BIT24 and BIT32
AddressMode = BIT24

; Define the desired Frequency. Valid options are M2, M4, M8, M16 and M32
Frequency = M8

; Define the desired SPI mode. Valid options are MODE0 and MODE3
SpiMode = MODE0

; Define the desired SckDelay. Valid options are in the range 0 to 255
SckDelay = 0x80

; Define the desired IO level for DIO2 and DIO3 during a custom instruction. Valid options are LEVEL_HIGH and LEVEL_LOW
CustomInstructionIO2Level = LEVEL_LOW
CustomInstructionIO3Level = LEVEL_HIGH

; Define the assigned pins for the QSPI peripheral. Valid options are those existing in your device
CSNPin = 24
CSNPort = 0
SCKPin = 19
SCKPort = 0
DIO0Pin = 21
DIO0Port = 0
DIO1Pin = 23
DIO1Port = 0
DIO2Pin = 22
DIO2Port = 0
DIO3Pin = 17
DIO3Port = 0

; Define the Index of the Write In Progress (WIP) bit in the status register. Valid options are in the range of 0 to 7.
WIPIndex = 0

; Define page size for commands. Valid sizes are PAGE256 and PAGE512.
PPSize = PAGE256

; Custom instructions to send to the external memory after initialization. Only used if --qspicustominit option is given in the call to nrfjprog. Format is
; instruction code plus data to send in between optional brakets. Numbers can be given in decimal, hex (starting with either 0x or 0X) and binary (starting
; with either 0b or 0B) formats. The custom instructions will be executed in the order found.
; This example includes two commands, first a WREN (WRite ENable) and then a WRSR (WRite Satus Register) enabling the Quad Operation and the High Performance
; mode for the MX25R6435F memory present in the nRF52840 DK.
InitializationCustomInstruction =  0x06
InitializationCustomInstruction =  0x01, [0x40, 0, 0x2]