Search found 3 matches

by oliv3r
Wed Nov 08, 2023 8:57 am
Forum: Hardware
Topic: ESP + (R)MII Ethernet MAC + Hardware Flow Control UART (RTS/CTS) + Flash
Replies: 5
Views: 4071

Re: ESP + (R)MII Ethernet MAC + Hardware Flow Control UART (RTS/CTS) + Flash

So then 'why' are the UART pins brought out on the IOmatrix, with the note on the iomatrix 'important for high-speed signals'. If it doesn't matter, shouldn't it not have mattered and not be part of the iomatrix at all? It's a bit misleading/confusing to 'de leek' :)
by oliv3r
Mon Nov 06, 2023 10:00 am
Forum: Hardware
Topic: ESP + (R)MII Ethernet MAC + Hardware Flow Control UART (RTS/CTS) + Flash
Replies: 5
Views: 4071

Re: ESP + (R)MII Ethernet MAC + Hardware Flow Control UART (RTS/CTS) + Flash

Thanks @ESP_LJH, however I intend to use the UART at 1Mbit - 5Mbit, which is the maximum baudrate the ESP supports. At these speeds, I do feel that it becomes important? If not, why are they mapped to the iomux pins at all, with a warning about this in the manual? :) Since a PHY also costs money, I'...
by oliv3r
Thu Nov 02, 2023 7:58 pm
Forum: Hardware
Topic: ESP + (R)MII Ethernet MAC + Hardware Flow Control UART (RTS/CTS) + Flash
Replies: 5
Views: 4071

ESP + (R)MII Ethernet MAC + Hardware Flow Control UART (RTS/CTS) + Flash

Hey all, I'm trying to design a board around an esp module, not carrying so much which chip is used but do want to have a certain peripherals. A simple list of requirements: I need an Ethernet MAC interface, ideally RMII as that saves a lot of pins and is quite well documented on how to use (RTL8201...