meshtastic-firmware/nrf52/ttgo_eink_qpsi.ini

; nrfjprog.exe configuration file.

; Note: QSPI flash is mapped into memory at address 0x12000000

[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.
; MX25R1635F is 16Mbit/2Mbyte
MemSize = 0x200000

; 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 = M16

; 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 = 15
CSNPort = 1
SCKPin = 14
SCKPort = 1
DIO0Pin = 12
DIO0Port = 1
DIO1Pin = 13
DIO1Port = 1
DIO2Pin = 7
DIO2Port = 0
DIO3Pin = 5
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. Format is instruction code plus data to send in between optional brakets. 
; These instructions will be executed each time the qspi peripheral is initiated by nrfjprog. 
; To improve execution speed on consecutive interations with QSPI, you can run nrfjprog once with custom initialization, and then comment out the lines below.
; 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. 

; For MX25R1635F on TTGO board, only two data lines are connected
; This example includes two commands, first a WREN (WRite ENable) and then a WRSR (WRite Satus Register) enabling Quad Operation and the High Performance
; mode.  For normal operation you might want low power mode instead.
InitializationCustomInstruction =  0x06
InitializationCustomInstruction =  0x01, [0x40, 0, 0x2]