LPC Microcontrollers中的主题 Re: LPC1769 USB Host connection

LPC1769 USB Host connection

rohidas — Sat, 25 Mar 2023 09:59:33 GMT

We have use LPC1769FBD100 use in our instrument,

Please guide us following points,

1) How to connect USB Host connection to LPC1769FBD100.

2) Vbus power connection

3) how to connect USB to USB Hub PCB.

Re: LPC1769 USB Host connection

xiangjun_rong — Mon, 27 Mar 2023 04:51:49 GMT

Hi,

Can you tell us the function of USB of LPC1769? in other words, does the function of USB as a host or device?

From your description, it appears that USB function as a host, in the case, the USB_VBUS provides power for the external USB device, in the case, pls refer to the following circuit.

I copy it from the schematics of LPC546xx, for the LPC546xx and in host mode of USB, the USB0_PORTPWRn is an output signal, the USB0_OVRCURn is an input signal for lpc546xx.

If you use the USB as a device,pls update the case, I am sorry.

Hope it can help you

XiangJun Rong

Re: LPC1769 USB Host connection

rohidas — Mon, 03 Apr 2023 04:39:55 GMT

Hii Dear,

Thanks for reply,

But we need connection of USB host and LPC1769?. Also suggest USB supply/and protection circuits.

Re: LPC1769 USB Host connection

xiangjun_rong — Mon, 03 Apr 2023 07:28:28 GMT

Hi,

As you know that USB device host/device/OTG share the pins for LPC17xx, this is the part of circuit with OTG from third party, hope it can help you

XiangJun Rong

Re: LPC1769 USB Host connection

rohidas — Mon, 03 Apr 2023 09:16:15 GMT

Thanks Dear, we will check and update..