16550 Compatible Uart is not working in Quartus21.3

[Jiayi_H_Intel]

Hi expert,

I failed to use 16550 Compatible Uart to send data. Serial signal never change.

I have write the configure to the register:

0x4 to 0x0;

0xC to 0x80;

0x0 to 0x36;

0x4 to 0x0;

0xC to 0x03;

0x8 to 0xC7;

And then read 0x14, it returns 0x60:

And then write data to 0x0:

But sout and sout_oe never change. And then polling 0x14 always returns 0x0.

BTW, I have test this core with same configuration in simulation, it worked well. 

Can you help that?

[ShengN_Intel]

I have write the configure to the register:

0x4 to 0x0;

0xC to 0x80;

0x0 to 0x36;

0x4 to 0x0;

0xC to 0x03;

0x8 to 0xC7;

Based on what I can see in first picture, the address configuration are all 000h. Could that be the reason.

Best Regards,

Sheng

p/s: If any answer from community or Intel support are helpful, please feel free to mark as solution and give Kudos.

[ShengN_Intel]

Hi,

Any further update or concern? Have your problem being resolved?

Regards,

Sheng

[Jiayi_H_Intel]

After correcting configure data, the issue resolved.