I didn't follow anything from EricH-DW at the bottom because he's using a different set-up. Didn't even want to try to mess with that. I will if that's what is suggested here though.
I'll put the changes I've made in my own words to show if I've actually followed this accurately, or if it's just user error on my end.
-Compiled Marlin 2.1.2.5 for my ender 5 plus to send to the SKR Mini
-opened the config.h file in VSCode, changed line 93 to:
define MOTHERBOARD BOARD_BTT_SKR_MINI_E3_V3_0
-Defined 1st serial_port on line 106 to:
define SERIAL_PORT 2
define BAUDRATE 115200 (line 119)
Defined 2nd serial_port on line 128 to:
define SERIAL_PORT_2 -1
define BAUDRATE_2 115200
And 3rd serial_port to:
define SERIAL_PORT_3 3
define BAUDRATE_3 115200
In the Platfolioini.io I have:
default_envs = STM32G0B1RE_btt
I have the config.ini file changes for the TFT display as follows:
Line 101 - serial_port:P1:6 P2:6 P3:6 P4:0
Along with these changes I have swapped the RT and TX wires from the RS232 port to the UART3 port. TX wire in on the left pin on the UART3 port and the RT wire is on the center pin in the UART3 port.
I've checked the baudrates and ports in the settings on the display itself. Here are the readings:
1 - Printer - 115200
2 - Wifi - 115200
3 - UART3 - 115200
4 - UART4 - OFF
I've made these changes and I'm still getting the same "No printer attached" message.
I've been down the rabbit hole here in ways I've never imagined. I am so new to compiling firmware that I feel like I'm in diapers again.
I have a SKR E3 Mini V3.0 & TFT35 E3 V3.0.1 in an Ender 5 plus - although I would have enjoyed just using the stock screen... alas here we are.
I've run down the tips from Radek8 here - https://github.com/bigtreetech/SKR-3/issues/24
I've also looked at the amendments made by ThunderClap86 here - https://github.com/bigtreetech/BIGTREETECH-SKR-mini-E3/issues/724
I'll put the changes I've made in my own words to show if I've actually followed this accurately, or if it's just user error on my end.
-Compiled Marlin 2.1.2.5 for my ender 5 plus to send to the SKR Mini -opened the config.h file in VSCode, changed line 93 to:
define MOTHERBOARD BOARD_BTT_SKR_MINI_E3_V3_0
-Defined 1st serial_port on line 106 to:
define SERIAL_PORT 2
define BAUDRATE 115200 (line 119)
Defined 2nd serial_port on line 128 to:
define SERIAL_PORT_2 -1
define BAUDRATE_2 115200
And 3rd serial_port to:
define SERIAL_PORT_3 3
define BAUDRATE_3 115200
In the Platfolioini.io I have: default_envs = STM32G0B1RE_btt
I have the config.ini file changes for the TFT display as follows: Line 101 - serial_port:P1:6 P2:6 P3:6 P4:0
Along with these changes I have swapped the RT and TX wires from the RS232 port to the UART3 port. TX wire in on the left pin on the UART3 port and the RT wire is on the center pin in the UART3 port.
I've checked the baudrates and ports in the settings on the display itself. Here are the readings: 1 - Printer - 115200 2 - Wifi - 115200 3 - UART3 - 115200 4 - UART4 - OFF
I've made these changes and I'm still getting the same "No printer attached" message.
What am I doing wrong?