Hello,
Sure if you try system clock to 60MHz, then use FT4222_SPIMaster_Init and set clock_div to CLK_DIV_2 (1/2 System Clock) which should give 30MHz on SCK.
Your issue could be weak SPI signals when you configure clock to 30MHz or 40MHz.
You can try adding pull high resistor on the SPI pins especially the clock.
If you are still having issues contact our Taiwan Support team:
tw.support1@ftdichip.com
Best Regards,
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1
General Category / Discussion - Drivers / Re: Support different maximum clock frequency on UMFT4222EV and FT4222HQ
on: May 24, 2024, 04:41:27 pm
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Started by TonySH - Last Post by FTDI Community | ||
2
General Category / Discussion - Drivers / Re: Support different maximum clock frequency on UMFT4222EV and FT4222HQ
on: May 24, 2024, 03:19:19 am
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Started by TonySH - Last Post by TonySH | ||
Hi experts,
I got it, thank you. BTW, I got an issue that using SPI 30M Hz in master mode works for our application, but it doesn't work on 40M Hz, the way of configuration is the same as you mentioned. The issue is that the data the Host received is wrong. I will look up the signals of CLK, MOSI and MISO on the oscilloscope first, then report to you on the other thread if the issue is still there. Thanks again. Best Regards, TonySH |
3
General Category / Discussion - Drivers / Re: Support different maximum clock frequency on UMFT4222EV and FT4222HQ
on: May 23, 2024, 03:46:52 pm
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Started by TonySH - Last Post by FTDI Community | ||
Hello,
Yes you can use FT4222_SetClock to set the system clock to 80MHz, then use FT4222_SPIMaster_Init and set clock_div to CLK_DIV_2 (1/2 System Clock) which should give 40MHz on SCK. Please make sure you are using the latest version of LibFT4222: https://ftdichip.com/software-examples/ft4222h-software-examples/ And reference AN_329 User Guide for LibFT4222. Best Regards, FTDI Community |
4
General Category / Discussion - Drivers / Re: FTDI Port cannot be displayed under the ports (COM and LPT) of Device Manager
on: May 23, 2024, 03:28:16 pm
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Started by sunlite - Last Post by FTDI Community | ||
Hi,
Could you please contact your local support line at: cn.support@ftdichip.com. They will be able to help you. Best Regards FTDI Community |
5
General Category / Discussion - Drivers / FTDI Port cannot be displayed under the ports (COM and LPT) of Device Manager
on: May 23, 2024, 12:04:02 pm
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Started by sunlite - Last Post by sunlite | ||
Hello,
Have to ask technical experts a question. We use your prestigious company's FT232 for communication between master and slave computers through USB to RS232 serial port. We used the driver of FTDI, but we customized it our own driver by wrapping it outside of FTDI. Our drivers mainly include two inf files: FTDI Bus and FTDI Port. The matter is that the device manager is unable to recognize the COM port. Our Port cannot be displayed under the ports (COM and LPT) of device manager. Currently, it can only be displayed on 2 sets of ASUS laptops ( Windows 11 Home Chinese version , Intel Core i3, X64) under the device manager ports (COM and LPT) . Tried other brands like Lenovo, Hua wei, Dell, Hassee, Haier, even if other same model of ASUS laptops but all failed, it won't work. Including desktop computers. This problem has been troubling us and we stuck here for a long time and needs to be solved urgently. Otherwise, the Labview program that is nearly finished will be unable to deploy to the client's machine due to this driver issue! Please help, the sooner, the better! Thank you very much! sunlight |
6
General Category / Discussion - Drivers / Re: Support different maximum clock frequency on UMFT4222EV and FT4222HQ
on: May 23, 2024, 06:10:42 am
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Started by TonySH - Last Post by TonySH | ||
Hi experts,
Thanks for your confirmation. About the library "LibFT4222" I used, I also need to double check with you, LibFT4222 supports the SCK performed with 40 MHz in SPI master mode, is that right? Thanks TonySH |
7
General Category / Discussion - Drivers / Re: Support different maximum clock frequency on UMFT4222EV and FT4222HQ
on: May 20, 2024, 04:39:52 pm
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Started by TonySH - Last Post by FTDI Community | ||
Hello,
I can confirmed that the maximum SCK in SPI Master mode is 40MHz. We will update the UMFT4222EV datasheet. Best Regards, FTDI Community |
8
on: May 17, 2024, 11:56:19 am
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Started by Arsen - Last Post by FTDI Community | ||
Hi,
The source code for the FT60x Chip Configuration Programmer cannot be given out. could you please email support1@ftdichip.com? we can then discuss your issue further. Best Regards FTDI Community |
9
General Category / Discussion - Drivers / Support different maximum clock frequency on UMFT4222EV and FT4222HQ
on: May 17, 2024, 10:25:35 am
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Started by TonySH - Last Post by TonySH | ||
Hi experts,
I got a FTDI device module UMFT4222EV-D, my target are using a GPIO pin and a channel SPI with clock running as 40M Hz. So, I looked up the data sheet of the module UMFT4222EV and chipset FT4222, and found it supports different maximum clock frequency. In the "UMFT4222EV - USB2.0 to QuadSPI/I2C Bridge Development Module Datasheet Version 1.4" from the FTDI website. Quote 3 FT4222H Features and Enhancement In the "FT4222H USB2.0 TO QUADSPI/I2C BRIDGE IC Datasheet Version 1.5" from the FTDI website. Quote 4.1 Key Features There is 10MHz lost on UMFT4222EV-D device in master mode, what's going on the device? and for my target, which device I can use? Is there a suggestion? Thanks TonySH |
10
on: May 16, 2024, 02:52:49 pm
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Started by Arsen - Last Post by Arsen | ||
According to the documentation, after FT_SetChipConfiguration the device should reboot. “The device will restart after the chip configuration is written to the device.” (AN_379 D3XX Programmers Guide, page 45, Remarks). But it does not reboot, so it doesn't open again.(FT_DEVICE_NOT_FOUND)
Where can I get the source code for the "FT60x Chip Configuration Programmer" Thanks everyone. |