41 lines
1.4 KiB
Markdown
41 lines
1.4 KiB
Markdown
# ENC424J600 Driver
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## Examples
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### Endless Pinging - `tx_stm32f407`
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This program demonstrates the Ethernet TX capability on an STM32F407 board connected to an ENC424J600 module via SPI. Once loaded and initialised, a specific ping packet is sent (broadcasted) every 100ms. Such a packet has the following properties:
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* Destination MAC Address: ff-ff-ff-ff-ff-ff
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* Source MAC Address: 08-60-6e-44-42-95
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* Destination IP Address: 192.168.1.231
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* Source IP Address: 192.168.1.100
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* Frame Length in Bytes: 64
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Note that this program uses ITM for logging output.
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#### How-to
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1. Prepare the Rust and Cargo environment for building and running the program on STM32F4xx Cortex-M platforms.
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2. Install [`itm`](https://docs.rs/itm/) on Cargo:
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```
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cargo install itm
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```
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If necessary, add your installation location (`~/.cargo/bin` by default) to `$PATH`.
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3. Connect your STM32F407 device to the computer. Without changing any code, you may use an STLink V2 debugger.
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4. Run OpenOCD with the appropriate configuration files (e.g. `interface/stlink-v2.cfg`, `target/stm32f4x.cfg`).
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5. With OpenOCD running, build and run this program:
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```
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cargo run --release --example=tx_stm32f407 --features=stm32f407
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```
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Use appropriate GDB commands such as `c` for continuing.
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6. On a separate console window, monitor and observe the ITM output, which is located at the same directory as you started OpenOCD:
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```
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itmdump -f itm.log -F
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```
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