S25HL512T QSPI Flash configuration

[Shraddha]

For 1s-1s-1s Iam writing to an register,  miso line is not able to detect can you refer the attach images and tell me what is the issue ,Iam giving configuration 

 command :- 71h (8 bits)

address:- 0x00800001 to  0x00800005  (32bits )

data:- A5(8 BITS ) 

[Yuvraj]

Hi,

Thank you for contacting Infineon Technologies.

Could you please confirm are you able to read device ID correctly, can you please share the waveform of the same?

Regards,

Yuvraj 

[Shraddha]

wave form of reading device ID giving 9F command can you pls tell why its not getting written 

[Yuvraj]

Hi,

Before passing Write Any Register (71h) you have to do Write Enable (WRENB_0_0) (06h) it sets the Write Enable Latch bit of the Status Register 1 to 1 to enable write, program and erase transactions.

Regards,

Yuvraj

[Shraddha]

After passing command 06h also still its not triggering you can refer the waveform 

06h--->71h--->address 0x00800002--->data A5--->for reading 

[Yuvraj]

Hi,

From the waveform, it looks like you are not making CS# high after sending the WREN command.

After that you need to do CS# Low, 71, ADDR, DATA, CS# High.

Regards,

Yuvraj 

[Yuvraj]

Hi,

Can you provide the read waveform after making a correction to the WREN command?

Regards,

Yuvraj 

[Shraddha]

you mean to say after sending WREN (06 command) i should send read command of 32 bit ?

[Yuvraj]

Hi,

No, read the data after passing the (71h command).

Regards,

Yuvraj 

[Shraddha]

refer to the attach waveform

[Yuvraj]

Hi,

Could you please let us know which command you are using to read the data?

Regards,

Yuvraj  

[Yuvraj · Accepted solution]

Hi,

You are using 4-Byte address mode and by default 71h command takes 3-Byte address.

First you need to change 3-Byte addressing mode to 4-Byte addressing mode by using EN4BA_0_0 (B7h) command to enter 4-Byte addressing mode.

Also 05h command is used to read Status Register 1, but you are writing the data on the address 0x00800002 which is Configuration Register 1.

You have to use RDCR1_0_0 (35h) command to read this data.

You need to follow below instruction set command,

CS(low)> B7h > CS(high)>CS(low)> WREN (06h)>CS(high)>CS(low)>71h->address 0x00800002->data A5>CS(high)>CS(low)>35h>CS(high)

Regards,

Yuvraj

[Shraddha]

MISO line i can observe the  toggling but for every data its writing 10101010 1010101  ( after every 8 clock cycles its miso line high) , for  AB also its writing 10101010 10101010 . you can refer the waveform .what could be the issue?