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Messages - rudolf

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1
Discussion - Software / Re: Delay Between CLK and MOSI Operation
« on: July 23, 2021, 12:21:45 PM »
Thank you,

I am using SPI mode 1. CLK is 5 MHz for data transfer, and i measured 1 clk cycle.
1 CLK = 166ns
50% CLK = 83ns
25% CLK = 41ns.

The reason behind adding delay is to design results shows that MOSI line is shifted 25% with the CLK. so i need 41ns delay in that line.

2
Discussion - Software / Re: Delay Between CLK and MOSI Operation
« on: July 23, 2021, 09:44:43 AM »
Thank you for replying!!!

I want to send commands to slave using FT2232H, in which i have to add approx. 50ns delay between CLK and MOSI line. so the slave will understand data correctly.

3
Discussion - Software / Delay Between CLK and MOSI Operation
« on: July 22, 2021, 06:14:30 AM »
Hello,

Is it possible to add delay in Mosi line for FT2232H?

I referred user guide of FT2232H in which i found that MPSSE mode has default CLK to MOSI delay operation is 1nS to 7.15nS. but how to control it? I also attached MPSSE timing diagram.

If there is another way to add delay between CLK and MOSI line, pls suggest.

Thanks in advance.

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