SPI flash memory

[dutcher]

Hi everyone,

Thanks for reading my post. I'm trying to make a DAC (digital analog converter) for better sound quality.

Everything goes well for so far. But there is one part I don't understand.

The processor Is communicating with the flash memory (IS25LQ016B). And I need to program this chip to let it work properly.

I have the files and the software to do that so that will not be a big deal. I will use a CH341A spi flash programmer from aliexpress to do the job.

But I need to enable 4-bit or quad-IO mode as well :/

I have read that this is not possible with the CH341A.

My questions:

How can I enable the 4-bit or quad-IO mode without breaking the bank. 

Can someone give me some information about the 4-bit or quad-IO. I have no idea what it does and why it has to be enabled.

thanks for the comments.

kind regards

[hpoetzl]

Hey @dutcher,

How can I enable the 4-bit or quad-IO mode without breaking the bank.

To program the IS25LQ016B, there is no need to use QuadSPI as it also support single and dual SPI modes.

Can someone give me some information about the 4-bit or quad-IO.

It is basically a high throughput (parallel) mode which uses four instead of a single data line.

I have no idea what it does and why it has to be enabled.

You can enable it with some commands when the hardware supports it.

Hope this clarifies,

Herbert

[dutcher]

Thanks for your reply @hpoetzl,

Thanks for the explanation. 

Are you sure I don't need to enable 4-bit or quad-IO? (see screenshot)

[dutcher]

Do you mean the hardware of the DAC or the hardware of the SPI flash programmer? 

[dutcher]

the IS25LQ016B is communicating with the XHRA-2HPA.
I think the XHRA-2HPA requires Quadspi

[hpoetzl]

Hey @dutcher,

Just to clarify ...

• The IS25LQ016B is Single/Dual/Quad SPI capable.
• You can program the IS25LQ016B in Single/Dual/Quad mode.
• You can configure Quad SPI via Bit 6 (QE) of the Status Register.
• The XHRA-2HPA requires Quad SPI.
• The programmer hardware needs to be compatible with the SPI.
• The CH341A (chip) is 3.3V and compatible with the IS25LQ016B.

Best,

Herbert

[dutcher]

Thanks for your reply,

Can I use batronix prog-express with the CH34 to generate firmware image?

what is the easiest way to enable QSPI?

kind regards,

[hpoetzl]

Hey @dutcher,

Thanks for your reply,

You're welcome!

Can I use batronix prog-express with the CH34 to generate firmware image?

No idea what that is or does ...

what is the easiest way to enable QSPI?

Setting bit #6 of the Status Register (QE)

Hope this helps,

Herbert