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#1
New Products release / Ethernet for PICO and PICO2
Last post by olimex - Today at 03:40:38 PMNew OSHW board adds 100MB Ethernet for RP2040, RP2350 and ESP32-S3/C3/C5/C6. ESPHome example auto-discovery in Home Assistant, OTA over Ethernet and a ready-to-flash UF2, with no Wi-Fi needed. #HomeAssistant #ESPHome #RP2040 #OSHW
https://www.olimex.com/Products/Modules/Ethernet/UEXT-CH390/open-source-hardware
https://www.olimex.com/Products/Modules/Ethernet/UEXT-CH390/open-source-hardware
#2
A20 / Re: Wich board to correctly mo...
Last post by oly - Today at 01:37:56 PMAny clue about origin of this ?
#3
A20 / Re: Wich board to correctly mo...
Last post by oly - October 31, 2026, 02:23:32 PMHi,
I burnt the base img on SD then boot from it with no HDD connected => OK, boot from SD OS
I burnt the base img on SD then boot from it with HDD connected => OK, boot from SD OS
Then I burnt the minimal img on the SD and boot from it with no HDD connected => The system boot many times then I got prompt from SD.
I try 'findmnt -no SOURCE / reports /dev/mmcblk0p1' => nothing visible
lsblk shows only mmcblk0p1
I boot from this SD with HDD connected => OS is loaded from HDD.
The boot screen shows this :
With
EDIT 20261101:
I re rownload 20-OLinuXino-bookworm-minimal-20260323-113959.img
Re verify md5sum
Reburn it on the same SD
Try to boot with no HDD => OK
Try to boot with HDD connected => KO, boot from HDD
All these inspire me perplexity
I burnt the base img on SD then boot from it with no HDD connected => OK, boot from SD OS
I burnt the base img on SD then boot from it with HDD connected => OK, boot from SD OS
Then I burnt the minimal img on the SD and boot from it with no HDD connected => The system boot many times then I got prompt from SD.
I try 'findmnt -no SOURCE / reports /dev/mmcblk0p1' => nothing visible
lsblk shows only mmcblk0p1
I boot from this SD with HDD connected => OS is loaded from HDD.
The boot screen shows this :
Code Select
switch to partitions #0, OK
mmc0 is current device
scanning mmc 0:1 ...
Found U-Boot script /boot/boot.scr
2274 bytes read in 3mms (740.2 KiB/s)
## Executing script at 43100000
Bott script loaded from mmc
Checking for /uEnv.txt...
Checking for /boot/uEnv.txt
1156 bytes read in 2 mms
Boot script loaded from mmcWith
Code Select
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 111,8G 0 disk
└─sda1 8:1 0 111,8G 0 part /
mmcblk0 179:0 0 14,8G 0 disk
└─mmcblk0p1 179:1 0 14,8G 0 part
EDIT 20261101:
I re rownload 20-OLinuXino-bookworm-minimal-20260323-113959.img
Re verify md5sum
Reburn it on the same SD
Try to boot with no HDD => OK
Try to boot with HDD connected => KO, boot from HDD
All these inspire me perplexity
#4
ESP32 / Re: Ethernet link not connecti...
Last post by Edac145 - October 31, 2026, 08:31:41 AMHi,
I tested the code you provided, but the behavior is the same as before. The Ethernet interface does not come up, and there is still **no link up**.
I have attached the build/runtime logs, along with my board and test setup information below.
RUN TIME LOG
---------------------------------------------------------------------------
entry 0x40080644
--- 0x40080644: call_start_cpu0 at E:/Program_Files/EspTools/Espressif/frameworks/.espressif/v6.0.2/esp-idf/components/bootloader/subproject/main/bootloader_start.c:27
I (27) boot: ESP-IDF v6.0.2 2nd stage bootloader
I (27) boot: compile time Oct 31 2026 10:05:11
I (28) boot: Multicore bootloader
I (29) boot: chip revision: v3.0
I (32) boot.esp32: SPI Speed : 40MHz
I (35) boot.esp32: SPI Mode : DIO
I (39) boot.esp32: SPI Flash Size : 4MB
I (42) boot: Enabling RNG early entropy source...
I (47) boot: Partition Table:
I (49) boot: ## Label Usage Type ST Offset Length
I (56) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (62) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (69) boot: 2 factory factory app 00 00 00010000 00100000
I (75) boot: End of partition table
I (79) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=14084h ( 82052) map
I (115) esp_image: segment 1: paddr=000240ac vaddr=3ffb0000 size=02c7ch ( 11388) load
I (120) esp_image: segment 2: paddr=00026d30 vaddr=40080000 size=092e8h ( 37608) load
I (136) esp_image: segment 3: paddr=00030020 vaddr=400d0020 size=36d60h (224608) map
I (216) esp_image: segment 4: paddr=00066d88 vaddr=400892e8 size=03028h ( 12328) load
I (221) esp_image: segment 5: paddr=00069db8 vaddr=50000000 size=00028h ( 40) load
I (228) boot: Loaded app from partition at offset 0x10000
I (228) boot: Disabling RNG early entropy source...
I (242) cpu_start: Multicore app
I (250) cpu_start: GPIO 3 and 1 are used as console UART I/O pins
I (250) cpu_start: Pro cpu start user code
I (250) cpu_start: cpu freq: 160000000 Hz
I (252) app_init: Application information:
I (256) app_init: Project name: esp32_poe_iso_wrover_diagnostic
I (262) app_init: App version: uart-v0.1.0-dirty
I (267) app_init: Compile time: Oct 31 2026 10:04:45
I (272) app_init: ELF file SHA256: d5f3d297e...
I (276) app_init: ESP-IDF: v6.0.2
I (280) efuse_init: Min chip rev: v0.0
I (284) efuse_init: Max chip rev: v3.99
I (288) efuse_init: Chip rev: v3.0
I (292) heap_init: Initializing. RAM available for dynamic allocation:
I (298) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (303) heap_init: At 3FFB4140 len 0002BEC0 (175 KiB): DRAM
I (308) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (314) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (319) heap_init: At 4008C310 len 00013CF0 (79 KiB): IRAM
I (326) spi_flash: detected chip: generic
I (328) spi_flash: flash io: dio
I (333) main_task: Started on CPU0
I (335) main_task: Calling app_main()
I (359) poe_diag: ESP-IDF: v6.0.2
I (360) poe_diag: Board: ESP32-POE-ISO-WROVER, PHY LAN8710A
I (360) poe_diag: Mode: forum-code reproduction
I (364) poe_diag: RMII clock: output on GPIO0
I (400) esp_eth.netif.netif_glue: 7c:9e:bd:dc:5f:f3
I (400) esp_eth.netif.netif_glue: ethernet attached to netif
I (4502) poe_diag: Ethernet started
I (4503) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (4504) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (4507) poe_diag: Web server started on port 80
I (4514) main_task: Returned from app_main()
I (7511) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (7511) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (10516) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (10516) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (13521) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (13521) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (16526) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (16526) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (19531) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (19531) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (22536) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (22536) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (25541) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (25541) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (28546) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (28546) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (31551) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (31551) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (34556) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (34556) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (37561) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (37561) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (40566) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (40566) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (43571) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (43571) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (46576) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (46576) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (49581) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (49581) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
---------------------------------------------------------------------------------------
Board Information
- Board Model: ESP32-POE-ISO-WROVER-EA
- Hardware Revision: N1
- Olimex Part Number: 0000112904
- Manufacturing Date: YYWW 2630
Software
- ESP-IDF Version: v5.5.6 (output using the idf.py --version)
Power Source
- Powered via USB (not PoE)
Network Setup
- Connected directly to my laptop (no router or switch in between)
- IEEE 802.3: Not enabled
- Speed & Duplex: Auto Negotiation enabled
Ethernet Cable
- Type: Cat6
- Length: Approximately 1 meter
Please let me know if there are any additional settings or hardware checks I should perform for the ESP32-POE-ISO-WROVER-EA Rev. N1.
I tested the code you provided, but the behavior is the same as before. The Ethernet interface does not come up, and there is still **no link up**.
I have attached the build/runtime logs, along with my board and test setup information below.
RUN TIME LOG
---------------------------------------------------------------------------
entry 0x40080644
--- 0x40080644: call_start_cpu0 at E:/Program_Files/EspTools/Espressif/frameworks/.espressif/v6.0.2/esp-idf/components/bootloader/subproject/main/bootloader_start.c:27
I (27) boot: ESP-IDF v6.0.2 2nd stage bootloader
I (27) boot: compile time Oct 31 2026 10:05:11
I (28) boot: Multicore bootloader
I (29) boot: chip revision: v3.0
I (32) boot.esp32: SPI Speed : 40MHz
I (35) boot.esp32: SPI Mode : DIO
I (39) boot.esp32: SPI Flash Size : 4MB
I (42) boot: Enabling RNG early entropy source...
I (47) boot: Partition Table:
I (49) boot: ## Label Usage Type ST Offset Length
I (56) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (62) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (69) boot: 2 factory factory app 00 00 00010000 00100000
I (75) boot: End of partition table
I (79) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=14084h ( 82052) map
I (115) esp_image: segment 1: paddr=000240ac vaddr=3ffb0000 size=02c7ch ( 11388) load
I (120) esp_image: segment 2: paddr=00026d30 vaddr=40080000 size=092e8h ( 37608) load
I (136) esp_image: segment 3: paddr=00030020 vaddr=400d0020 size=36d60h (224608) map
I (216) esp_image: segment 4: paddr=00066d88 vaddr=400892e8 size=03028h ( 12328) load
I (221) esp_image: segment 5: paddr=00069db8 vaddr=50000000 size=00028h ( 40) load
I (228) boot: Loaded app from partition at offset 0x10000
I (228) boot: Disabling RNG early entropy source...
I (242) cpu_start: Multicore app
I (250) cpu_start: GPIO 3 and 1 are used as console UART I/O pins
I (250) cpu_start: Pro cpu start user code
I (250) cpu_start: cpu freq: 160000000 Hz
I (252) app_init: Application information:
I (256) app_init: Project name: esp32_poe_iso_wrover_diagnostic
I (262) app_init: App version: uart-v0.1.0-dirty
I (267) app_init: Compile time: Oct 31 2026 10:04:45
I (272) app_init: ELF file SHA256: d5f3d297e...
I (276) app_init: ESP-IDF: v6.0.2
I (280) efuse_init: Min chip rev: v0.0
I (284) efuse_init: Max chip rev: v3.99
I (288) efuse_init: Chip rev: v3.0
I (292) heap_init: Initializing. RAM available for dynamic allocation:
I (298) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (303) heap_init: At 3FFB4140 len 0002BEC0 (175 KiB): DRAM
I (308) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (314) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (319) heap_init: At 4008C310 len 00013CF0 (79 KiB): IRAM
I (326) spi_flash: detected chip: generic
I (328) spi_flash: flash io: dio
I (333) main_task: Started on CPU0
I (335) main_task: Calling app_main()
I (359) poe_diag: ESP-IDF: v6.0.2
I (360) poe_diag: Board: ESP32-POE-ISO-WROVER, PHY LAN8710A
I (360) poe_diag: Mode: forum-code reproduction
I (364) poe_diag: RMII clock: output on GPIO0
I (400) esp_eth.netif.netif_glue: 7c:9e:bd:dc:5f:f3
I (400) esp_eth.netif.netif_glue: ethernet attached to netif
I (4502) poe_diag: Ethernet started
I (4503) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (4504) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (4507) poe_diag: Web server started on port 80
I (4514) main_task: Returned from app_main()
I (7511) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (7511) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (10516) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (10516) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (13521) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (13521) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (16526) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (16526) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (19531) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (19531) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (22536) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (22536) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (25541) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (25541) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (28546) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (28546) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (31551) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (31551) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (34556) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (34556) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (37561) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (37561) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (40566) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (40566) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (43571) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (43571) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (46576) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (46576) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
I (49581) poe_diag: PHY ID=0007:c0f1 BMSR(first/second)=7809/7809 link=0 autoneg_done=0
I (49581) poe_diag: PHY BMCR=3000 ANAR=01e1 ANLPAR=0001 R17=0002 energy=1 R18=60e0 R31=0040
---------------------------------------------------------------------------------------
Board Information
- Board Model: ESP32-POE-ISO-WROVER-EA
- Hardware Revision: N1
- Olimex Part Number: 0000112904
- Manufacturing Date: YYWW 2630
Software
- ESP-IDF Version: v5.5.6 (output using the idf.py --version)
Power Source
- Powered via USB (not PoE)
Network Setup
- Connected directly to my laptop (no router or switch in between)
- IEEE 802.3: Not enabled
- Speed & Duplex: Auto Negotiation enabled
Ethernet Cable
- Type: Cat6
- Length: Approximately 1 meter
Please let me know if there are any additional settings or hardware checks I should perform for the ESP32-POE-ISO-WROVER-EA Rev. N1.
#5
ESP32 / Re: Ethernet link not connecti...
Last post by LubOlimex - October 30, 2026, 02:18:05 PMAre you 100% sure you have ESP32-POE-ISO-Wrover-EA? Can you see what is written on the module itself? It should be "ESP32-WROVER-EA".
I reproduced your initialization approach on an ESP32-POE-ISO-WROVER using ESP-IDF 5.5.5. It links immediately and remains stable, so the code and newer ESP-IDF do not appear to be the general cause.
Please test with my code: https://ftp.olimex.com/TEMP/wrover-esp-idf/ (there is README.md inside the archive with more details). If the problem remains try a short known-good LAN cable, another switch port, and preferably another network and computer, then compare the PHY registers and 50 MHz RMII clock. Let me know how it goes.
I reproduced your initialization approach on an ESP32-POE-ISO-WROVER using ESP-IDF 5.5.5. It links immediately and remains stable, so the code and newer ESP-IDF do not appear to be the general cause.
Please test with my code: https://ftp.olimex.com/TEMP/wrover-esp-idf/ (there is README.md inside the archive with more details). If the problem remains try a short known-good LAN cable, another switch port, and preferably another network and computer, then compare the PHY registers and 50 MHz RMII clock. Let me know how it goes.
#6
ESP32 / Re: Ethernet link not connecti...
Last post by Edac145 - October 30, 2026, 11:53:21 AMQuote from: LubOlimex on October 30, 2026, 11:40:33 AMDid you check the user's manual?
Which pin do you use for the Ethernet clock? Is it GPIO0?
MDC – 23
MDIO – 18
PHY reset – 12
PHY RMII clock – 0 (0 is for boards with WROVER module)
yes i am using pin 0 for clock
#define ETH_PHY_ADDR 0
#define ETH_MDC_GPIO 23
#define ETH_MDIO_GPIO 18
#define ETH_PHY_PWR_GPIO 12
#define ETH_RMII_CLK_GPIO 0 /* WROVER: 0, WROOM: 17 */
i am pasting my ethernet init code below,
* ---------------- Ethernet init ---------------- */
static void ethernet_init(void)
{
/* TCP/IP stack + default event loop */
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_config_t netif_cfg = ESP_NETIF_DEFAULT_ETH();
s_eth_netif = esp_netif_new(&netif_cfg);
const esp_timer_create_args_t timer_args = {
.callback = fallback_timer_cb,
.name = "dhcp_fallback",
};
ESP_ERROR_CHECK(esp_timer_create(&timer_args, &s_fallback_timer));
/* MAC (internal EMAC, RMII) */
eth_mac_config_t mac_config = ETH_MAC_DEFAULT_CONFIG();
eth_esp32_emac_config_t emac_config = ETH_ESP32_EMAC_DEFAULT_CONFIG();
emac_config.interface = EMAC_DATA_INTERFACE_RMII;
emac_config.smi_gpio.mdc_num = ETH_MDC_GPIO;
emac_config.smi_gpio.mdio_num = ETH_MDIO_GPIO;
/* ESP32 generates the 50 MHz RMII reference clock for the LAN8720A */
emac_config.clock_config.rmii.clock_mode = EMAC_CLK_OUT;
emac_config.clock_config.rmii.clock_gpio = ETH_RMII_CLK_GPIO;
esp_eth_mac_t *mac = esp_eth_mac_new_esp32(&emac_config, &mac_config);
/* PHY (LAN8720A). GPIO12 powers/resets the PHY: it stays low (PHY off) until the
* MAC has started the RMII clock, as required by the LAN8720A. */
eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
phy_config.phy_addr = ETH_PHY_ADDR;
phy_config.reset_gpio_num = ETH_PHY_PWR_GPIO;
esp_eth_phy_t *phy = esp_eth_phy_new_lan87xx(&phy_config);
/* Driver install + attach to TCP/IP */
esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(mac, phy);
esp_eth_handle_t eth_handle = NULL;
ESP_ERROR_CHECK(esp_eth_driver_install(ð_config, ð_handle));
s_eth_handle = eth_handle;
ESP_ERROR_CHECK(esp_netif_attach(s_eth_netif, esp_eth_new_netif_glue(eth_handle)));
ESP_ERROR_CHECK(esp_event_handler_register(ETH_EVENT, ESP_EVENT_ANY_ID, ð_event_handler, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_ETH_GOT_IP, &got_ip_event_handler, NULL));
vTaskDelay(pdMS_TO_TICKS(100));
printf("Clock GPIO=%d\n", emac_config.clock_config.rmii.clock_gpio);
printf("Clock mode=%d\n", emac_config.clock_config.rmii.clock_mode);
printf("Interface=%d\n", emac_config.interface);
ESP_ERROR_CHECK(esp_eth_start(eth_handle));
xTaskCreate(phy_diag_task, "phy_diag", 3072, NULL, 3, NULL);
}
void app_main(void)
{
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK(ret);
ethernet_init();
start_webserver(); /* lwIP accepts connections as soon as the interface has an IP */
}
#7
ESP32 / Re: Ethernet link not connecti...
Last post by LubOlimex - October 30, 2026, 11:40:33 AMDid you check the user's manual?
Which pin do you use for the Ethernet clock? Is it GPIO0?
MDC – 23
MDIO – 18
PHY reset – 12
PHY RMII clock – 0 (0 is for boards with WROVER module)
Which pin do you use for the Ethernet clock? Is it GPIO0?
MDC – 23
MDIO – 18
PHY reset – 12
PHY RMII clock – 0 (0 is for boards with WROVER module)
#8
ESP32 / Ethernet link not connecting -...
Last post by Edac145 - October 30, 2026, 08:47:35 AMMy Olimex ESP32-POE-ISO-WROVER-EA, hardware revision N1, does not establish an Ethernet link with either my laptop or router. The same cable works between the laptop and router. The board's power LED is on, but its LINK and ACT1 LEDs remain off. ESP32 logs show the LAN8710 PHY responds over MDIO (ID 0007:C0F1), but link stays down (link=0, auto-negotiation incomplete). I also tried with ethernet basic example. it is also not working. I am giving power through mico usb port. Could you advise whether this indicates a board hardware fault and how to proceed? i have pasted my log file below --- 0x40080400: _invalid_pc_placeholder at E:/Program_Files/EspTools/Espressif/frameworks/.espressif/v6.0.2/esp-idf/components/xtensa/xtensa_vectors.S:2259
entry 0x40080644
--- 0x40080644: call_start_cpu0 at E:/Program_Files/EspTools/Espressif/frameworks/.espressif/v6.0.2/esp-idf/components/bootloader/subproject/main/bootloader_start.c:27
I (27) boot: ESP-IDF v6.0.2 2nd stage bootloader
I (27) boot: compile time Oct 29 2026 15:47:41
I (28) boot: Multicore bootloader
I (29) boot: chip revision: v3.0
I (32) boot.esp32: SPI Speed : 40MHz
I (35) boot.esp32: SPI Mode : DIO
I (39) boot.esp32: SPI Flash Size : 4MB
I (42) boot: Enabling RNG early entropy source...
I (47) boot: Partition Table:
I (49) boot: ## Label Usage Type ST Offset Length
I (56) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (62) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (69) boot: 2 factory factory app 00 00 00010000 00100000
I (75) boot: End of partition table
I (79) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=14c14h ( 85012) map
I (116) esp_image: segment 1: paddr=00024c3c vaddr=3ffb0000 size=02cb4h ( 11444) load
I (121) esp_image: segment 2: paddr=000278f8 vaddr=40080000 size=08720h ( 34592) load
I (136) esp_image: segment 3: paddr=00030020 vaddr=400d0020 size=3c9b4h (248244) map
I (224) esp_image: segment 4: paddr=0006c9dc vaddr=40088720 size=03d08h ( 15624) load
I (231) esp_image: segment 5: paddr=000706ec vaddr=50000000 size=00028h ( 40) load
I (238) boot: Loaded app from partition at offset 0x10000
I (238) boot: Disabling RNG early entropy source...
I (250) cpu_start: Multicore app
I (258) cpu_start: GPIO 3 and 1 are used as console UART I/O pins
I (258) cpu_start: Pro cpu start user code
I (259) cpu_start: cpu freq: 160000000 Hz
I (260) app_init: Application information:
I (264) app_init: Project name: 01_uart_test
I (269) app_init: App version: uart-v0.1.0-dirty
I (273) app_init: Compile time: Oct 29 2026 15:46:55
I (278) app_init: ELF file SHA256: 760071bc4...
I (283) app_init: ESP-IDF: v6.0.2
I (286) efuse_init: Min chip rev: v0.0
I (290) efuse_init: Max chip rev: v3.99
I (294) efuse_init: Chip rev: v3.0
I (298) heap_init: Initializing. RAM available for dynamic allocation:
I (305) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (310) heap_init: At 3FFB4188 len 0002BE78 (175 KiB): DRAM
I (315) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (320) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (326) heap_init: At 4008C428 len 00013BD8 (78 KiB): IRAM
I (332) spi_flash: detected chip: generic
I (335) spi_flash: flash io: dio
I (339) main_task: Started on CPU0
I (339) main_task: Calling app_main()
I (399) esp_eth.netif.netif_glue: 7c:9e:bd:dc:5f:f3
I (399) esp_eth.netif.netif_glue: ethernet attached to netif
Clock GPIO=0
Clock mode=1
Interface=0
I (4499) eth_test: Ethernet started
I (4499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (4499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (4499) eth_test: Web server started on port 80
I (4509) main_task: Returned from app_main()
I (7499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (7499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (10499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (10499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (13499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (13499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (16499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (16499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (19499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (19499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (22499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (22499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (25499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (25499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (28499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (28499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (31499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (31499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (34499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (34499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (37499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (37499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (40499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (40499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (43499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (43499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
entry 0x40080644
--- 0x40080644: call_start_cpu0 at E:/Program_Files/EspTools/Espressif/frameworks/.espressif/v6.0.2/esp-idf/components/bootloader/subproject/main/bootloader_start.c:27
I (27) boot: ESP-IDF v6.0.2 2nd stage bootloader
I (27) boot: compile time Oct 29 2026 15:47:41
I (28) boot: Multicore bootloader
I (29) boot: chip revision: v3.0
I (32) boot.esp32: SPI Speed : 40MHz
I (35) boot.esp32: SPI Mode : DIO
I (39) boot.esp32: SPI Flash Size : 4MB
I (42) boot: Enabling RNG early entropy source...
I (47) boot: Partition Table:
I (49) boot: ## Label Usage Type ST Offset Length
I (56) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (62) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (69) boot: 2 factory factory app 00 00 00010000 00100000
I (75) boot: End of partition table
I (79) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=14c14h ( 85012) map
I (116) esp_image: segment 1: paddr=00024c3c vaddr=3ffb0000 size=02cb4h ( 11444) load
I (121) esp_image: segment 2: paddr=000278f8 vaddr=40080000 size=08720h ( 34592) load
I (136) esp_image: segment 3: paddr=00030020 vaddr=400d0020 size=3c9b4h (248244) map
I (224) esp_image: segment 4: paddr=0006c9dc vaddr=40088720 size=03d08h ( 15624) load
I (231) esp_image: segment 5: paddr=000706ec vaddr=50000000 size=00028h ( 40) load
I (238) boot: Loaded app from partition at offset 0x10000
I (238) boot: Disabling RNG early entropy source...
I (250) cpu_start: Multicore app
I (258) cpu_start: GPIO 3 and 1 are used as console UART I/O pins
I (258) cpu_start: Pro cpu start user code
I (259) cpu_start: cpu freq: 160000000 Hz
I (260) app_init: Application information:
I (264) app_init: Project name: 01_uart_test
I (269) app_init: App version: uart-v0.1.0-dirty
I (273) app_init: Compile time: Oct 29 2026 15:46:55
I (278) app_init: ELF file SHA256: 760071bc4...
I (283) app_init: ESP-IDF: v6.0.2
I (286) efuse_init: Min chip rev: v0.0
I (290) efuse_init: Max chip rev: v3.99
I (294) efuse_init: Chip rev: v3.0
I (298) heap_init: Initializing. RAM available for dynamic allocation:
I (305) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (310) heap_init: At 3FFB4188 len 0002BE78 (175 KiB): DRAM
I (315) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (320) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (326) heap_init: At 4008C428 len 00013BD8 (78 KiB): IRAM
I (332) spi_flash: detected chip: generic
I (335) spi_flash: flash io: dio
I (339) main_task: Started on CPU0
I (339) main_task: Calling app_main()
I (399) esp_eth.netif.netif_glue: 7c:9e:bd:dc:5f:f3
I (399) esp_eth.netif.netif_glue: ethernet attached to netif
Clock GPIO=0
Clock mode=1
Interface=0
I (4499) eth_test: Ethernet started
I (4499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (4499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (4499) eth_test: Web server started on port 80
I (4509) main_task: Returned from app_main()
I (7499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (7499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (10499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (10499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (13499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (13499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (16499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (16499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (19499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (19499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (22499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (22499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (25499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (25499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (28499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (28499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (31499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (31499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (34499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (34499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (37499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (37499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (40499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (40499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
I (43499) eth_test: PHY ID1=0x0007 ID2=0xc0f1 BMSR=0x7809 (link=0) R31=0x0040
I (43499) eth_test: PHY R0=0x3000 R5=0x0001 R17=0x0002 (energy=1) R18=0x60e0
#9
Neo6502 / Re: Prophet server for the Neo...
Last post by Ralf - October 29, 2026, 05:38:37 PMHi Béné,
thanks for your reply.
I'm using Trinity v0.16.69 and NeoDOS v0.32.1
That was the Olimex UART MOD-WIFI-ESP8266 I used.
On first boot with Trinity, I got a flood of endless error messages. These messages were somehow turned into files, so I got a lot of filenames like ER and ROR and so on. They were mostly 0 bytes, so I didn't bother to open and read any of them, and the system is working nicely and stable with the Pi Pico, so I don't feel compelled to replicate that event. ;-)
However, as the MOD-WIFI-ESP8266 is the only peripheral I haven't plugged into the Neo6502 again, I strongly suspect it was the culprit.
As for the keymaps, yes, NeoBasic does support German, however, I don't want to boot Trinity, run NeoBasic for the German Keymap, and then run NeoDOS again because of its advantages.
Sure, I guess a few lines in AUTOEXEC.BAT and autostart.bas will do the trick, but it's still not a neat solution.
Anyways. In NeoBasic with German keymap, the ö ä ü ß give the English (US?) mapping, i.e. ; ' [ -
Lastly, did you do something to speed up the whole Neo6502? There is this clockspeed.bas demo and it gives me a clockspeed of around 6.8MHz, and the test.bas demo which generates a Mandelbrot set also runs faster than it used to.
Which is cool though. :-)
So long
Cheers
thanks for your reply.
I'm using Trinity v0.16.69 and NeoDOS v0.32.1
That was the Olimex UART MOD-WIFI-ESP8266 I used.
On first boot with Trinity, I got a flood of endless error messages. These messages were somehow turned into files, so I got a lot of filenames like ER and ROR and so on. They were mostly 0 bytes, so I didn't bother to open and read any of them, and the system is working nicely and stable with the Pi Pico, so I don't feel compelled to replicate that event. ;-)
However, as the MOD-WIFI-ESP8266 is the only peripheral I haven't plugged into the Neo6502 again, I strongly suspect it was the culprit.
As for the keymaps, yes, NeoBasic does support German, however, I don't want to boot Trinity, run NeoBasic for the German Keymap, and then run NeoDOS again because of its advantages.
Sure, I guess a few lines in AUTOEXEC.BAT and autostart.bas will do the trick, but it's still not a neat solution.
Anyways. In NeoBasic with German keymap, the ö ä ü ß give the English (US?) mapping, i.e. ; ' [ -
Lastly, did you do something to speed up the whole Neo6502? There is this clockspeed.bas demo and it gives me a clockspeed of around 6.8MHz, and the test.bas demo which generates a Mandelbrot set also runs faster than it used to.
Which is cool though. :-)
So long
Cheers
#10
A20 / Re: Wich board to correctly mo...
Last post by LubOlimex - October 29, 2026, 01:53:29 PMThe output shows that the system is already running from SATA (/dev/sda1 is /). olinuxino-sd-to-sata excludes the current root device, so "Failed to detect SATA device" is expected in this state. Reflash the complete Olimage image to the whole SD card, first boot it with SATA disconnected, and verify findmnt -no SOURCE / reports /dev/mmcblk0p1. Then reconnect SATA, verify SD is still root, and rerun the migration script. If it again boots SATA, please provide the UART boot log, especially the "U-boot loaded from" and "Boot script loaded from" lines - these are at beginning of boot and require USB-serial cable.