Commit Graph

21 Commits

Author SHA1 Message Date
Damien George
124df6f8d0 py: Add mp_pending_exception global variable, for VM soft interrupt.
This allows to implement KeyboardInterrupt on unix, and a much safer
ctrl-C in stmhal port.  First ctrl-C is a soft one, with hope that VM
will notice it; second ctrl-C is a hard one that kills anything (for
both unix and stmhal).

One needs to check for a pending exception in the VM only for jump
opcodes.  Others can't produce an infinite loop (infinite recursion is
caught by stack check).
2014-10-25 23:37:57 +01:00
Damien George
3c4db9f91c stmhal: Add USB_VCP class/object, for direct USB VCP control.
Before, pyb.stdin/pyb.stdout allowed some kind of access to the USB VCP
device, but it was basic access.

This patch adds a proper USB_VCP class and object with much more control
over the USB VCP device.  Create an object with pyb.USB_VCP(), then use
this object as if it were a UART object.  It has send, recv, read,
write, and other methods.  send and recv allow a timeout to be specified.

Addresses issue 774.
2014-07-31 10:30:42 +01:00
Damien George
09bbe7215a stmhal: Fix USB CDC not flushing packets when an exact multiple of 64.
Need to send a zero-sized packet after sending an exact multiple of 64
bytes (not just after sending 64 bytes exactly).

Addresses issue #494, part 2.
2014-05-10 18:56:16 +01:00
Damien George
04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George
efc22e376f stmhal: Fix 64-byte USB packet bug properly.
A 64-byte packet is now followed by a 0-byte packet if there is nothing
more to send.  This flushes the USB endpoint.
2014-04-17 00:12:07 +01:00
Damien George
28817725fc stmhal: Replace magic number 3 with CDC_IN_EP define. 2014-04-16 23:17:29 +01:00
Damien George
9388a90842 stmhal: Fix USB CDC buffer overrun error.
Need to wait for the low-level USB driver to send the data over the USB
in-endpoint before the buffer can be used again.  This patch adds a
check for this.
2014-04-16 15:51:27 +01:00
Damien George
cce7119a2b stmhal: Work around crazy bug in USB CDC.
Packets of 64 bytes length are not send to the host until the following
packet is sent.  Fixed by never sending packets of 64 bytes length.
2014-04-14 01:46:25 +01:00
Damien George
212f89e61a stmhal: Improve USB CDC write function (increase timeout). 2014-04-13 16:39:04 +01:00
Damien George
038df43183 stmhal: Implement selector for USB device mode; improve boot up.
Can now choose at boot up whether the USB device is CDC+MSC or CDC+HID.
Choice is made by an option in boot.py, with default being CDC+MSC.
HID+MSC is not currently supported, but should be easy to implement.

Boot up now has ability to change the reset mode: hold down USR switch
while booting and LEDs will count from 1 to 7 to indicate the boot mode.
Release USR when correct mode is selected.  Current modes are 1 (normal
boot), 2 (safe mode), 3 (reset FS mode).
2014-03-30 00:00:15 +00:00
Damien George
2f8beb8d88 stmhal: Fix bug with USB CDC transmit buffer wrap around. 2014-03-24 12:23:03 +00:00
Damien George
f357a19202 stmhal: Fix issues with USB CDC init and receive.
Late USB enumeration could clear settings after they had been set.
Now fixed by not clearing some settings on init.

RX was blocking if received characters were not being processed, so
CTRL-C would not be picked up.  Now "fixed" by not blocking, but
instead discarding incoming characters if they overflow the buffer.
2014-03-23 18:54:48 +00:00
Damien George
908a670dfc stmhal: Add intensity method for blue LED.
As part of this, rejig the way TIM3 is initialised, since it's now
shared by USB CDC and the blue LED PWM.
2014-03-22 23:54:13 +00:00
Damien George
0119fc7532 stmhal: Servo driver can move at a given speed. 2014-03-22 18:34:16 +00:00
Damien George
2fb37847a7 stmhal: Tidy up USB CDC+MSC device some more. 2014-03-22 13:21:58 +00:00
Damien George
a6787edcea stmhal: Tidy up USB device configuration. Make it use less RAM. 2014-03-22 12:46:23 +00:00
Damien George
02a8543841 stmhal: Check CDC tx buffer has free space before filling with data. 2014-03-15 16:54:23 +00:00
Damien George
6c2455f481 stmhal: Put an array in ROM. 2014-03-15 14:46:35 +00:00
Damien George
07174c6fca stmhal: Fix escape sequences in USB CDC input. 2014-03-15 12:53:51 +00:00
Damien George
e285511a23 stmhal: Get USB CDC REPL working.
New USB HAL is quite a bit improved over previous one.  Now has better
callbacks and flow control.

REPL over USB CDC now works as before, except for soft-reset (since USB
driver uses malloc...).
2014-03-15 11:52:29 +00:00
Damien George
b30c02afa0 stmhal: Get USB enumerating a CDC device.
Enumerates CDC device over USB, but doesn't transmit/receive yet.
2014-03-14 00:30:37 +00:00