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Merge pull request #2100 from cesanta/standex
Update Makefiles and READMEs
This commit is contained in:
Sergio R. Caprile
GitHub
commit
572a10d5a0
@ -21,6 +21,3 @@ pico_enable_stdio_uart(firmware 0) # to USB
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# Mongoose build flags
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add_definitions(-DMG_ENABLE_TCPIP=1)
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add_definitions(-DMG_ENABLE_PACKED_FS=1)
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# Extra build flags (enable if needed)
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add_definitions(-DDUAL_CONFIG=0)
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@ -1,63 +1 @@
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# RMII with the PIO in an RP2040 for 10Mbps Ethernet
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- Full-duplex 10Mbps
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- RMII Tx implemented with a PIO state machine and single-buffer DMA transfers
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- Once the DMA starts sending to the PIO, subsequent attempts to tx will block
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- RMII Rx implemented with a PIO state machine and ping-pong buffer DMA transfers
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- PIO code handles the CSR_DV signal, stops and raises an IRQ on frame ending. CRC is calculated later for minimum dead time between frames
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- SMI implemented with a PIO state machine
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- The RP2040 is clocked from the LAN8720 and works at 50MHz
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- CRC calculation uses a fast table-based algorithm that doesn't require much storage (nibble calculation)
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## Hardware connections
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You can change most pins at will, bear in mind that each function requires consecutive pins, see main.c
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The RETCLK (should be REFCLK...) pin can go to either GPIO20 or GPIO22
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| LAN8720 | | Raspberry Pi Pico | |
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| ----------- | ----------- |----------------- | -- |
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| 1,2 | VCC | 3V3 | 36 |
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| 3,4 | GND | GND | 38 |
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| 5 | MDC | GPIO15 | 20 |
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| 6 | MDIO | GPIO14 | 19 |
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| 7 | CRS | GPIO8 | 11 |
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| 8 | nINT / RETCLK | GPIO20 | 26 |
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| 9 | RX1 | GPIO7 | 10 |
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| 10 | RX0 | GPIO6 | 9 |
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| 11 | TX0 | GPIO10 | 14 |
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| 12 | TX-EN | GPIO12 | 16 |
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| 13 |
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| 14| TX1 | GPIO11 | 15 |
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## Build and run
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Clone Mongoose repo, go to this example, and build it:
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```sh
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git clone https://github.com/cesanta/mongoose
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cd mongoose/examples/rp2040/pico-rmii
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make build
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```
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This will generate a firmware file: `build/firmware.uf2`. Reboot your Pico board in bootloader mode, and copy it to the RPI disk.
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Attach to the serial console, wait a couple of seconds, then plug in your Ethernet cable:
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```
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$ picocom /dev/ttyACM0 -i -b 115200 --imap=lfcrlf
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6213 1 mongoose.c:6757:onstatechange Link up
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6217 3 mongoose.c:6840:tx_dhcp_discover DHCP discover sent
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621b 3 mongoose.c:6723:arp_cache_add ARP cache: added 192.168.69.2 @ 52:54:...
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6222 2 mongoose.c:6749:onstatechange READY, IP: 192.168.69.243
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6227 2 mongoose.c:6750:onstatechange GW: 192.168.69.1
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622b 2 mongoose.c:6752:onstatechange Lease: 21600 sec
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```
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Note the acquired IP address printed (you can also check your DHCP server). Point your browser to that address, or run curl, you should see an "ok" message:
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```
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$ curl 192.168.69.243
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ok
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```
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See detailed tutorial (including hardware connections) at https://mongoose.ws/tutorials/rp2040/pico-rmii/
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@ -1,25 +1,7 @@
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# Device Dashboard via RNDIS on an RP2040
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Your headless Raspberry Pi Pico-based hardware can also have a device dashboard on a web browser when you connect it to your computer via USB
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## Build and run
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Clone Mongoose repo, go to this example, and build it:
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```sh
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git clone https://github.com/cesanta/mongoose
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cd mongoose/examples/rp2040/pico-rndis-dashboard
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make build
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```
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This will generate a firmware file: `build/firmware.uf2`. Reboot your Pico board in bootloader mode, and copy it to the RPI disk.
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The device will reboot, register as a USB RNDIS device, and add a network and a removable read-only disk to your computer.
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Open the new drive, named `Mongoose`, and double click on its `INDEX.HTM` file; your browser should open and you should see a device dashboard.
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Alternatively, you may just run a browser, and open 192.168.3.1,
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Note: USB stdio in the Pico-SDK is done in background with TinyUSB and an interrupt to hide it from the user and periodically call tusb_task(). When we use TinyUSB, that code is removed from the compilation list; so this example uses UART stdio (UART 0) to keep things simple and focused on the RNDIS example. If you want to see the console output, connect an USB-to-UART or a low-voltage-TTL-to-RS-232 adapter to GPIO0
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- See detailed tutorial at https://mongoose.ws/tutorials/rp2040/pico-rndis-dashboard/
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Note for Mac users: For this example to run on Mac, please set `DUAL_CONFIG=1` in `CMakeLists.txt` before building; this enables CDC-ECM. Please notice that Windows may not recognize the mass-storage device in that case.
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@ -22,6 +22,3 @@ add_definitions(-DMG_ENABLE_PACKED_FS=1)
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add_definitions(-DMG_ENABLE_MBEDTLS=0) # TODO(cpq): enable
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add_definitions(-DMG_ENABLE_CUSTOM_RANDOM=1)
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add_definitions(-DMG_ENABLE_FILE=0)
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# Extra build flags (enable if needed)
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add_definitions(-DDUAL_CONFIG=0)
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@ -1,57 +1,3 @@
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# RP2040 with W5500 Ethernet module
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# RP2040 + W5500 Ethernet chip
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This repository demonstrates how to use RP2040 with W5500 Ethernet module,
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to implement networking. In this example, a very simple HTTP server is
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implemented. See [other examples](../..) for more functionality.
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## RP2040 Pico wiring
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The W5500 module uses SPI for communication. The following pins are used
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by this example (modify `main.c` if you use a different pinout):
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```c
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enum { LED = 25, SPI_CS = 17, SPI_CLK = 18, SPI_TX = 19, SPI_RX = 16 };
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```
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On a breadboard, it might look like this:
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## Pinout reference
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## Build and run
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Clone Mongoose repo, go to this example, and build it:
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```sh
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git clone https://github.com/cesanta/mongoose
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cd mongoose/examples/ro2040/pico-w5500
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make
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```
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The above will make a firmware in `build/example.uf2`. Reboot your Pico
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board in bootloader mode, and copy `example.uf2` to the RPI disk.
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Attach serial console. Then, plug in Ethernet cable:
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```
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$ cu -l /dev/cu.usb* -s 115200
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4653 2 main.c:79:main Ethernet: down
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520b 2 main.c:79:main Ethernet: down
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5dc3 2 main.c:79:main Ethernet: down
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6593 1 mongoose.c:6757:onstatechange Link up
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659a 3 mongoose.c:6840:tx_dhcp_discover DHCP discover sent
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667b 3 mongoose.c:6723:arp_cache_add ARP cache: added 192.168.0.1 @ 90:5c:44:55:19:8b
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667d 2 mongoose.c:6749:onstatechange READY, IP: 192.168.0.24
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667e 2 mongoose.c:6750:onstatechange GW: 192.168.0.1
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6680 2 mongoose.c:6752:onstatechange Lease: 86062 sec
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697b 2 main.c:79:main Ethernet: up
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7533 2 main.c:79:main Ethernet: up
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```
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Note the aquired IP address printed. Run a browser, and type that IP address
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in the address field. You should see an "ok" message in a browser:
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- See detailed tutorial (including hardware connections) at https://mongoose.ws/tutorials/rp2040/pico-w5500/
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