| Commit message (Collapse) | Author | Age | Files | Lines |
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Added i2c slave support
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a byte and then read.
Slight tidy up.
Reformatted CREDITS file to be in correct order.
Added a note about buffer overrun
Signed-off-by:- Barry Carter <barry.carter@gmail.com>
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Added fix for corner case where badly behaving master doesn't NACK and we don't get the callbacks fires.
Removed my own name from several places and added attribution to the correct place.
Updated include comments to reference the fact it now supports I2C slave
Signed-off-by:- Barry Carter <barry.carter@gmail.com>
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- Callbacks can be called after each read/write cycle or per byte
- Each I2C module can have different callbacks
- General call support also working
- Supports master and slave at same time. Also works with multimaster
Usage:
i2c_msg msg;
char buffer[255];
main()
{
i2c_slave_enable(I2C1, I2C_FAST_MODE | I2C_SLAVE_DUAL_ADDRESS | I2C_SLAVE_GENERAL_CALL | I2C_SLAVE_USE_RX_BUFFER); // init slave mode. Enables master too
i2c_slave_attach_recv_handler(I2C1, pmsg, funcrx); // attach receive handler
i2c_slave_attach_transmit_handler(I2C1, pmsg, functx); // attach transmit handler
i2c_slave_set_own_address(I2C1, 0x10); // set addresss 1
i2c_slave_set_own_address2(I2C1, 0x20); // set addresss 2
}
void funcrx(i2c_msg *msg)
{
printf("length is %d.\n", msg->length);
char return_data = msg0>data[0];
}
void functx(i2c_msg *dev)
{
msg->data[0] = 0x01;
msg->data[1] = 0x02;
msg->data[2] = 0x03;
msg->data[3] = 0x04;
msg->data[4] = 0x05;
msg->length = 5;
}
All code derived from datasheets and libmaple.
Signed-off-by:- Barry Carter <barry.carter@gmail.com>
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Since toolchains other then older Code Sourcery (Mentor Graphics)
might not use the arm-none-eabi triplet, make it possible to use
any triplet by just setting the CROSS_COMPILE environment variable
accordingly.
Signed-off-by: Daniel Nyström <daniel@nystrom.st>
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caddr_t is obsolete in POSIX and thus unavailable in most modern
toolchains. caddr_t usage should be replaced by void *.
stddef.h includes the size_t typedef which was missing.
Signed-off-by: Daniel Nyström <daniel@nystrom.st>
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Signed-off-by: Daniel Nyström <daniel@nystrom.st>
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Signed-off-by: Magnus Lundin <lundin@mlu.mine.nu>
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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For toolchains which require an exit function.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Whitespace and comments.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Thanks to Manuel Odenahl for the fix.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This allows users to override them.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This resolves issues related to sending full (64B) packets via USB
2.0. In this case, some hosts continue to expect more data. Add
infrastructure for sending 0-byte packets to signal end of
transmission, and use it in SerialUSB.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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- Check if we're transmitting (instead of how many bytes are left
untransmitted) before bailing, in case we're transmitting a
zero-length packet.
- Set transmitting=1 before setting the endpoint valid to avoid races
with the USB interrupt.
- Eliminate some duplicated code.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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the host buffers by sending a 0 byte packet
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Added a flag to see if we are currently waiting on an interrupt to acknowledge the sending of the current
IN packet.
Added a method usb_cdcacm_is_transmitting() to check for that flag.
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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usb_serial.cpp)
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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For bulk double buffer support.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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I am not sure why this would work for most DMA transfers but I ran into trouble when doing
SDIO DMA.
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Signed-off-by: Dmitry Prokhorov <dipspb@gmail.com>
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Keep things simple.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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stm32f1/performance: load stm32.h in order to have STM32_HIGH_DENSITY when necessary
STM32_HIGH_DENSITY was not defined in isrs.S and vector_table.S for a high density STM32. This was because stm32.h where the flag is now defined (in contrast to being defined on the command line in an earlier version of libmaple) was not included. This led to crashes when using one of the high density peripherals.
Updated the ASFLAGS to have the correct include path in rules.mk.
Include stm32.h in the assembler files.
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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It is possible to receive empty bulk transfers. This would lead to the endpoint never being reenabled as this was handled by the read routine. This caused the USB to hang.
Signed-off-by: Manuel Odendahl <wesen@ruinwesen.com>
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Sigh; Emacs's elide-head feature makes it easy to forget to update
these.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Keep the Doxygen in the header as per Wirish conventions.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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examples
Signed-off-by: Aditya Gaddam <adityagaddam@gmail.com>"
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function. While the second shows the use of a static class method as the event handler. Both work on Maple REVC
Signed-off-by: Aditya Gaddam <adityagaddam@gmail.com>"
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probably use voidFuncPtr instead, but this way people can see that the function expects something different. Existing functions haven't changed in signature.
Signed-off-by: Aditya Gaddam <adityagaddam@gmail.com>"
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argument can be the instance that needs to handle the interrupt, or just a random argument you might find useful later. Suggestions from mbolivar and iperry from pull53 on libmaple were taken into account.
Signed-off-by: Aditya Gaddam <adityagaddam@gmail.com>"
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Add libraries directory to global include path, so Wire sub-headers
can be included in a directory-independent way.
Tweak Wire global declaration and definition so it builds.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This causes the warning to be emitted at most once. As is, it can be
emitted each time HardwareSPI.h is included, which is annoying.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Guard hooks with BOARD_HAVE_SERIALUSB to keep GCC quiet.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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