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6 years, 8 months ago.
Program for STM32F411RE won't compile.
After about a week of MBED weirdness my program won't compile. I get the error
Error: "mbed::NonCopyable<T>::NonCopyable(const mbed::NonCopyable<T> &) [with T=mbed::I2C]" (declared at <a href="#" onmousedown="mbed_doc_goto('/Bicycl_Computer_NUCLEO-F411REextras/mbed_a97add6d7e64/platform/NonCopyable.h', '157'); return false;">/extras/mbed_a97add6d7e64/platform/NonCopyable.h:157</a>) is inaccessible in "extras/mbed_a97add6d7e64/drivers/I2C.h", Line: 57, Col: 22
This program use to compile just fine. I have checked that it has the correct hardware. NonCopyable.h?
Question relating to:
2 Answers
6 years, 8 months ago.
Quote:
just declare the SPI-interface globally
Libraries could not access your objects in your application, you have to pass them.
Quote:
delete that it inherits from NonCopyable.h
I think it is not a good idea to modify the mbed core. There is a reason for this limitation. Copying objects needs memory and CPU time. Instead, you should pass a pointer to the I2C, SPI, etc object without copying. Cleaner and faster. This is a new requirement in mbed, and a lot of libraries copies the object passed in their constructor. They have to be updated by their authors, or you can modify them and make a pull request. (I have to change my libs also.)
You have to change this
class ClassUsesI2C
{
public:
ClassUsesI2C(I2C &i2c) :
_i2c(i2c),
{};
private:
I2C _i2c;
}
I2C i2c(PIN_I2C_SDA, PIN_I2C_SCL);
ClassUsesI2C instance(i2c);
To this
class ClassUsesI2C
{
public:
ClassUsesI2C(I2C *i2c) :
_i2c(i2c),
{};
private:
I2C *_i2c;
}
I2C i2c(PIN_I2C_SDA, PIN_I2C_SCL);
ClassUsesI2C instance(&i2c);
I agree with Jan and Mark. I think in your case the issue is with the BNO055 library:
BNO055.h
...
/** Configure data pin (with other devices on I2C line)
* @param I2C previous definition
* @param device address
*/
BNO055(I2C& p_i2c, PinName p_reset, uint8_t addr, uint8_t mode);
/** Configure data pin (with other devices on I2C line)
* @param I2C previous definition
* @param Other parameters are set default data
*/
BNO055(I2C& p_i2c, PinName p_reset);
...
BNO055.cpp
...
BNO055::BNO055 (I2C& p_i2c, PinName p_reset, uint8_t addr, uint8_t mode) :
_i2c(p_i2c), _res(p_reset)
{
chip_addr = addr;
chip_mode = mode;
initialize ();
}
BNO055::BNO055 (I2C& p_i2c, PinName p_reset) :
_i2c(p_i2c), _res(p_reset)
{
chip_addr = BNO055_G_CHIP_ADDR;
chip_mode = MODE_NDOF;
initialize ();
}
...
Since you do not use any of these constructors a simple fix is to comment them out.
NOTE: You have done a nice job. Keep on!
posted by 04 Aug 2017
6 years, 8 months ago.
I had a similar problem with SPI in the mbed-releases > 145. In my case the problem was, that I passed the SPI-interface as parameter to a function (which worked fine until mbed 146 was released). In my case there were two ways to get it done, first, - just declare the SPI-interface globally and let the function use the bus directly - use the mbed-dev library, look for the driver (i2c.h in your case) and delete that it inherits from NonCopyable.h (I don't know if there are any side-effects, in my case this also worked fine, but it was annoying to "fix" it after every update).
I hope I described it understandable, english isn't my native language, and sometimes complex things are a bit difficult to describe ;),.
It looks like you're trying to copy an I2C instance. What's your code?
posted by Jan Jongboom 02 Aug 2017http://developer.mbed.org/users/trevieze/code/Bicycl_Computer_NUCLEO-F411RE/
posted by Darren Ulrich 02 Aug 2017