How to Use SD card WITH W5500 ETH chip on ESP32-S3-ETH

[harryboo]

Hi,
i am new in this topic.
I got the w5500 working with the information here. Thanx for that.
But the board also has a sd card slot. Thats why i set a second SPI interface with it, also set SDCARD CS to gpio 4.

Now the sdcard is working but the w5500 is not working anymore. If i remove the SDCARD CS from gpio 4 the ethernet is working on w5500. But now the sdcard is gone :-( .

How can i get both (w5500 and sdcard) working ?

Thanx

[harryboo]

As you can see: i can set the spi interface for the sdcard (SDCARD CS) but not for the 3 eth gpios.

When i change the spi ports (sdcard on spi 1 and ethernet spi on 2) the sdcard is working but i got this error message for the network card:
ETH: Bad EthType 1 or init error

How can i set the EthType for the second spi interface ?

[arendst]

For a W5500 the ethtype should be 8. Try that.

[Jason2866]

Afaik SPI Ethernet is currently only supported with one SPI bus. @arendst Is it in general possible to use SPI Ethernet with two different SPI bus?

[arendst]

Used to be a pain in the ass but with the ever changing frameworks it might work these days.

I'll have a look.

[sfromis]

AFAIK, it can be useful to select SPI bus number for Ethernet via SPI, but only for the SPI pins. Those ETH pins are not SPI pins, and there is no support for two Ethernet interfaces via SPI. This does not even try to explain the error you see.

[harryboo]

@sfromis It is important to select the correct spi bus for the other hardware pins, like cs, int etc. The selection after the 3 spi bus pins (miso, mosi, clk) is needed caz we can have up to 8 spi busses in the microcontroller...

[sfromis]

Yeah, for pin types dedicated to the SPI bus, the index is obviously important. The odd thing in Tasmota configuration is that the ETH MDC config which also acts as a SPI CS pin, but without the option to select SPI bus 1 or 2.

[arendst]

The framework currently is hardcoded for a specific SPI hardware channel for the ethernet driver option. Considering the fact that the S3 also supports embedded ethernet it would be a perfect solution to use that interface instead of selecting spi

[arendst]

I've done some trickery in our ethernet driver adding support for SPI2:

It's in the dev branch as bf450bb

Give it a try and let me know if it works with your SD card.

Note that the second SPI bus is only available on ESP32, ESP32P4, ESP32S2 and ESP32S3

00:00:00.000 CMD: Using USB CDC
00:00:00.000 HDW: ESP32-S3 v0.1 (PSRAM)
00:00:00.049 UFS: FlashFS mounted with 288 kB free
00:00:00.057 CFG: Loaded from File, Count 7097
00:00:00.058 SER: Set to 8N1 115200 bit/s
00:00:00.058 SER: HWCDC supports 115200 bit/s only
00:00:00.063 QPC: Count 1
00:00:00.064 SPI: Bus2 using GPIO36(CLK), GPIO35(MOSI) and GPIO37(MISO)
00:00:00.066 LED: RMT gpio 18
00:00:00.067 ROT: Mode 1
00:00:00.100 CFG: No '*.autoconf' file found
00:00:00.102 LED: Berry Animation WebUI initialized
00:00:00.105 BRY: Berry initialized, RAM used 4131 bytes
00:00:00.111 BRY: No 'preinit.be'
00:00:00.113 SRC: Restart
00:00:00.115 Project tasmota - Esp32S3 tiny1 Version 15.2.0.5(theo)-3.3.7(2026-02-12T16:29:02)
00:00:00.115 DOM: Support 1 Device(s), 1 Button(s), 0 Switch(es) and 11 Sensors
00:00:00.140 CFG: Domoticz loaded from file
00:00:00.175 ETH: Attempting connection...
00:00:00.210 BRY: No 'autoexec.be'
00:00:00.277 WIF: Attempting connection...
00:00:01.000 WIF: Connecting to AP1 indebuurt_IoT Channel 11 BSSId 18:E8:29:CA:17:C1 in mode HT20 as esp32s3tiny1...
00:00:01.102 WIF: IPv4 192.168.2.185, mask 255.255.255.0, gateway 192.168.2.254
00:00:02.113 ETH: Connected at 100Mbps Full Duplex, Mac F2:12:FA:4F:99:35, Hostname esp32s3tiny1-eth
00:00:02.121 ETH: IPv4 192.168.2.129, mask 255.255.255.0, gateway 192.168.2.254
00:00:02.751 WIF: Connected
00:00:03.012 RTC: UTC 2026-02-12T15:30:38Z, DST 2026-03-29T02:00:00, STD 2026-10-25T03:00:00
16:30:38.000 RTC: Synced by NTP
16:30:38.007 HTP: Web server active on esp32s3tiny1-eth with IP address 192.168.2.129
16:30:38.065 WIF: IPv6 Local fe80::f612:faff:fe4f:9934%st3
16:30:38.954 MQT: Attempting connection...
16:30:39.072 MQT: Connected
16:30:39.075 MQT: tele/esp32s3tiny1/LWT = Online (retained)
16:30:39.076 MQT: cmnd/esp32s3tiny1/POWER = 
16:30:39.077 MQT: Subscribe to cmnd/esp32s3tiny1/#
16:30:39.077 ETH: IPv6 Local fe80::f012:faff:fe4f:9935
16:30:39.078 MQT: Subscribe to cmnd/tasmotas/#
16:30:39.079 MQT: Subscribe to cmnd/DVES_4F9934_fb/#
16:30:39.082 MQT: tele/esp32s3tiny1/INFO1 = {"Info1":{"Module":"TinyS3","Version":"15.2.0.5(theo)","FallbackTopic":"cmnd/DVES_4F9934_fb/","GroupTopic":"cmnd/tasmotas/"}}
16:30:39.085 MQT: tele/esp32s3tiny1/INFO2 = {"Info2":{"WebServerMode":"Admin","Hostname":"esp32s3tiny1","IPAddress":"192.168.2.185","IP6Global":"","IP6Local":"fe80::f612:faff:fe4f:9934%st3","Ethernet":{"Hostname":"esp32s3tiny1-eth","IPAddress":"192.168.2.129"}}}
16:30:39.087 MQT: tele/esp32s3tiny1/INFO3 = {"Info3":{"RestartReason":{"Exception":7,"Reason":"PCValue","EPC":"4204fbdb","EXCVADDR":"00000000","CallChain":[]},"BootCount":340}}
16:30:39.089 MQT: stat/esp32s3tiny1/RESULT = {"POWER":"OFF"}
16:30:39.090 MQT: stat/esp32s3tiny1/POWER = OFF
16:30:41.951 QPC: Reset
16:30:42.077 WIF: IPv6 Global fd84:7996:2cbf:49d0:f612:faff:fe4f:9934
16:30:42.077 ETH: IPv6 Global fd84:7996:2cbf:49d0:f012:faff:fe4f:9935
16:30:42.954 MQT: tele/esp32s3tiny1/STATE = {"Time":"2026-02-12T16:30:42","Uptime":"0T00:00:08","UptimeSec":8,"Heap":254,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"Berry":{"HeapUsed":4,"Objects":59},"POWER":"OFF","Dimmer":27,"Color":"094503","HSBColor":"115,95,27","Channel":[3,27,1],"Scheme":0,"Width":1,"Fade":"OFF","Speed":1,"LedTable":"ON","Wifi":{"AP":1,"SSId":"indebuurt_IoT","BSSId":"18:E8:29:CA:17:C1","Channel":11,"Mode":"HT20","RSSI":100,"Signal":-13,"LinkCount":1,"Downtime":"0T00:00:03"},"Hostname":"esp32s3tiny1","IPAddress":"192.168.2.185"}
16:30:43.948 APP: Boot Count 340
16:30:44.632 CFG: Saved, Count 7098, Bytes 4096

[harryboo]

Hi,
i compiled the actual version with tasmocompiler but i cannot see a spi selection box at the ETH MDC field.

[arendst]

Ah sorry my fault. Forgot to add the template. hold on.....

[arendst]

Just pushed the additional file. (972ad82)

[harryboo]

It works when the sdcard is on spi1 and eth is on spi2.
00:00:00.284 SPI: Bus1 using GPIO07(CLK), GPIO06(MOSI) and GPIO05(MISO)
00:00:00.285 SPI: Bus2 using GPIO13(CLK), GPIO11(MOSI) and GPIO12(MISO)
00:00:00.297 I2C: Bus1 using GPIO47(SCL) and GPIO48(SDA)
00:00:00.423 UFS: SDCard mounted (SPI mode) with 15549856 kB free
00:00:00.423 SCR: ufilesystem found
...
21:43:18.128 HTP: Manage File system
21:43:18.128 UFS: File '/' download
21:43:18.130 UFS: File '/' to download is directory

if i change the spi bus number then tasmota has an error when i check tools\manage file system (Diese Seite funktioniert nicht).
ETH is working but not the sdcard.
In the log i can see that the sdcard was found.
00:00:00.279 SPI: Bus1 using GPIO13(CLK), GPIO11(MOSI) and GPIO12(MISO)
00:00:00.280 SPI: Bus2 using GPIO07(CLK), GPIO06(MOSI) and GPIO05(MISO)
00:00:00.292 I2C: Bus1 using GPIO47(SCL) and GPIO48(SDA)
00:00:00.317 UFS: SDCard mounted (SPI mode) with 15549856 kB free
00:00:00.318 SCR: ufilesystem found
...
21:35:26.229 HTP: Manage File system
21:35:26.229 UFS: File '/' download
21:35:26.536 UFS: File '/' not found

[arendst]

Pls retry latest dev branch. Should work now OK for both ethernet and SDCard on either SPI bus1 or bus2

[harryboo]

Looks good to me.

Thanx