smoothieware / smoothie-nuttx

A version of nuttx used by smoothie-v2

smoothie-nuttx

A version of nuttx used by smoothie-v2

This is preconfigured to include all drivers that are required for smoothie to operate.

To build and export the library for the Bambino

cd nuttx/tools
./configure.sh bambino-200e/smoothiedev
cd ..
make export

for mini alpha

cd nuttx/tools
./configure.sh smoothiev2-mini-alpha/smoothiedev
cd ..
make export

Then unzip the resulting nuttx-export.zip into the top of the directory you want to develop in.

smoothie-nuttx's Issues

CDC serial on nuttx needs to honor USB flow control

Right now if you stream over the USB serial most of the buffers are lost as there is no flow control.
Smoothie V1 uses USB native flow control so the amount of data from the host to the board is controlled by the flow control and no buffer are lost and we can do things like upload and fast-stream.

mmcsd_probe() needs to check state of CD pin

boardctl(BOARDIOC_INIT, 0) hangs if an sdcard is not plugged in.

uncaught exceptions is not yet implemented

This is called in ostreams...
https://github.com/Smoothieware/smoothie-nuttx/blob/master/nuttx/include/libcxx/ostream#L279
and causes an abort.

Temporary workaround is to return 0 in uncaught_exceptions() in libcxx/exception.cxx when nuttx is defined

ethernet init hangs if no ethernet present

#0  0x140842fe in lpc43_ethreset (priv=0x10002624 <g_lpc43ethmac>) at chip/lpc43_ethernet.c:3423
#1  0x1408432c in lpc43_ifdown (dev=dev@entry=0x10002660 <g_lpc43ethmac+60>) at chip/lpc43_ethernet.c:2305
#2  0x14084a1a in lpc43_ethinitialize () at chip/lpc43_ethernet.c:3842
#3  up_netinitialize () at chip/lpc43_ethernet.c:3869
#4  0x1405c1e6 in up_initialize () at common/up_initialize.c:267
#5  0x14059e5a in os_start () at init/os_start.c:691
#6  0x1405bd4c in __start () at chip/lpc43_start.c:355

Certain boards will have no ethernet populated, and we do not want to have to support two different versions of nuttx, it would be nice if ethernet setup could gracefully fail if the ethernet chips are not present.

Fix ENOTCONN for USB CDC driver

opening a USBCDC that is not connected should return ENOTCONN, but it only does so the first time. The second call always returns ok. This makes it impossible to properly detect if a host is connected or not, and also no way to see if the host has disconnected.

std::future/std::promise does not work

Using the std::promise() I get this error...

exception_ptr not yet implemented

when calling set_value()

Even though exceptions are disabled.

CONFIG_LPC43_USE_LOCSRAM_BANK1=y is not fully working

If I set CONFIG_LPC43_USE_LOCSRAM_BANK1=y

then the memory free command returns bogus information...

            total       used       free    largest
Mem:        173136       7728  269066884  268969668

ENCx24J600 Integration

Hi,

Any one have sample code for this ethernet driver (ENC424J600).

CDC driver crashes when given buffers > 64

Writing to the USB CDC with write() will crash if the buffer is more than about 64 bytes.
This makes sense as the USB blocks are 64 bytes, but the driver should not crash it should split the buffer up into 64 byte chunks.