HydraFW NAND Flash guide

HydraFW NAND Flash

This guide is updated towards firmware release HydraFW v0.10 and later

Bus: 8x NAND flash
Connections: 14 pins
Output types: 3.3volt normal

For hardware shield supported see https://github.com/Baldanos/HydraFlash

Shield is now available for purchase : https://lab401.com/collections/hardware/products/hydraflash

Protocol configuration syntax description:

• show Show flash parameters or show pins Show pins used in this mode

• exit to exit flash mode

Configuration options:

Hardware Informations: Data connections (D0-D7) are mapped to PC0-PC7 on Hydrabus

nandflash> show pins 
CE: PB4
RB: PB0
WE: PB1
RE: PB5
AL: PB2
CL: PB3

Protocol interaction syntax description:

id Displays the result of a Read ID command on the NAND flash

Protocol interaction example

nandflash> id
IDCode : AD 73 AD 73 AD 
Status register : E0

Wiring example

NAND PIN	Hydrabus PIN	Signal
9	PB4	CE# - Chip Enable
7	PB0	RB# - Read/Busy
16	PB3	CL - Command Latch
17	PB2	AL - Address Latch
8	PB5	RE# - Read Enable
18	PB1	WE# - Write Enable
19	GND/3.3V	WP# - Write Protect
29	PC0	IO0
30	PC1	IO1
31	PC2	IO2
32	PC3	IO3
41	PC4	IO4
42	PC5	IO5
43	PC6	IO6
44	PC7	IO7
12	3.3v	Vcc
37	3.3v	Vcc
13	GND	Vss
36	GND	Vss

Additional informations about NAND Flash

This mode is meant to be used using binary NAND mode