Commit Graph

8 Commits

Author SHA1 Message Date
Damien George c55709bf29 stm32/network_lan: Add high-level network.LAN interface to ETH driver. 2019-02-26 23:32:19 +11:00
Damien George 800871c0cb stm32/modnetwork: Change lwIP polling to be based on background systick. 2019-02-08 16:38:09 +11:00
Damien George 7d86ac6c01 stm32: Add network driver for Wiznet5k using MACRAW mode and lwIP.
The Wiznet5k series of chips support a MACRAW mode which allows the host to
send and receive Ethernet frames directly.  This can be hooked into the
lwIP stack to provide a full "socket" implementation using this Wiznet
Ethernet device.  This patch adds support for this feature.

To enable the feature one must add the following to mpconfigboard.mk, or
mpconfigport.mk:

    MICROPY_PY_WIZNET5K = 5500

and the following to mpconfigboard.h, or mpconfigport.h:

    #define MICROPY_PY_LWIP (1)

After wiring up the module (X5=CS, X4=RST), usage on a pyboard is:

    import time, network
    nic = network.WIZNET5K(pyb.SPI(1), pyb.Pin.board.X5, pyb.Pin.board.X4)
    nic.active(1)
    while not nic.isconnected():
        time.sleep_ms(50) # needed to poll the NIC
    print(nic.ifconfig())

Then use the socket module as usual.

Compared to using the built-in TCP/IP stack on the Wiznet module, some
performance is lost in MACRAW mode: with a lot of memory allocated to lwIP
buffers, lwIP gives Around 750,000 bytes/sec max TCP download, compared
with 1M/sec when using the TCP/IP stack on the Wiznet module.
2018-06-01 14:21:38 +10:00
Damien George d9f1ecece2 stm32/modnetwork: Provide generic implementation of ifconfig method.
All it needs is a lwIP netif to function.
2018-06-01 13:33:14 +10:00
Damien George 7437215ad7 stm32/modnetwork: Change base entry of NIC object from type to base.
mod_network_nic_type_t doesn't need to be an actual uPy type, it just needs
to be an object.
2018-06-01 13:31:28 +10:00
Damien George cda964198a stm32: Integrate lwIP as implementation of usocket module.
This patch allows to use lwIP as the implementation of the usocket module,
instead of the existing socket-multiplexer that delegates the entire TCP/IP
layer to the NIC itself.

This is disabled by default, and enabled by defining MICROPY_PY_LWIP to 1.

When enabled, the lwIP TCP/IP stack will be included in the build with
default settings for memory usage and performance (see
lwip_inc/lwipopts.h).  It is then up to a particular NIC to register itself
with lwIP using the standard lwIP netif API.
2018-05-21 17:36:06 +10:00
Damien George d966a33486 stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
Damien George 01dd7804b8 ports: Make new ports/ sub-directory and move all ports there.
This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.
2017-09-06 13:40:51 +10:00