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Visitor peppe84
Visitor
4,734 Views
Registered: ‎01-09-2014

AXI_UART_16550 max baud rate

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Hi,

I'm using a AXI_UART_16550 core in my project on Spartan6 LX9 but I never worked with this core. Someone can tell me what is the max baud rate of this core? I want to work at 3 Mbps using an AXI_CLK = 100 MHz, beacause I have a Digilent PMOD_UART_USB that permits a 3 Mbps baud rate. Is it possible? 

 

Thanks.

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Visitor peppe84
Visitor
5,999 Views
Registered: ‎01-09-2014

Re: AXI_UART_16550 max baud rate

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Hi,
Silicon Labs USB-serial bridge device CP2102 has a max baud rate of 1 Mbps. The PMOD can work at 3 Mbps. Now I want to reduce the baud error and then I'll try to use a different sys_freq. The best freq is 48 MHz (the same of PMOD)...

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Teacher eteam00
Teacher
4,717 Views
Registered: ‎07-21-2009

Re: AXI_UART_16550 max baud rate

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You do not need to wait for an answer from us...  just try it!

 

I believe the LX9 MicroBoard uses a Silicon Labs USB-serial bridge device, CP2102.  This device may support 3Mbit/sec operation, but if you are using Windows, you may need a custom-designed device driver to be able to use the 3Mbit/sec speed reliably and consistently.

 

You will not cause any harm by experimenting with high baud rates.  So try it!

 

-- Bob Elkind

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Visitor peppe84
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6,000 Views
Registered: ‎01-09-2014

Re: AXI_UART_16550 max baud rate

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Hi,
Silicon Labs USB-serial bridge device CP2102 has a max baud rate of 1 Mbps. The PMOD can work at 3 Mbps. Now I want to reduce the baud error and then I'll try to use a different sys_freq. The best freq is 48 MHz (the same of PMOD)...

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Observer jxlannie
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1,498 Views
Registered: ‎03-12-2013

Re: AXI_UART_16550 max baud rate

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Hi, I want to know the result of your work ? The axi_uart16550 ipcore can work at 3Mbps or not? If it can ,is it work well? And what software driver do you use ? Thank you!

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