Enabling SPI causes the clock to be output by default.
Most devices will not care about extra clock cycles, especially as long
as chip select is not active, nevertheless this may cause side issues
with other devices especially during init phase.
This was actually the case with a 3 wire device (LPS22HB sensor).
In case MISO is not passed at SPI init, then we consider a 3 wires SPI
configuration is requested, which corresponds to SPI_DIRECTION_1LINE
configuration parameter in STM32 HAL layer.
We're then handling this specific case of SPI_DIRECTION_1LINE,
in spi_master_write or spi_master_block_write, we call to HAL API
Functions 'serial_break_set' & 'serial_break_clear' wrongly removed during 'SERIAL_FC disabled, critical section API Updation' commit.
Due to this 'mbed compile' command for GCC_ARM tool fails to compile.
* ppa:terry.guo/gcc-arm-embedded has been deprecated in favor of ppa:team-gcc-arm-embedded/ppa
* this also means switching from 4.9.3.2015q3 to 6-2017q2
target specific templates use a common template .cproject.tmpl and extend it by adding target information. This is necessary for the flash and debugging tools
project is read, but still fixes necessary:
- archticture is fixed entry, read from config
- linker options
- linker script file ?
- linker settings 'managed build' page causes error
- develop still not working
- used LPC4088 for testing
- split template for LPC54114 into common and Cortex-Mx dependet parts like in old LPCXpresso exporter
- changed fixed linker script name to name from options
Todo: use flags and configurations from options (like in gae exporter)
- Removed the patterned LED sequence, all boards now use the 4 fast pulse, 4 slow pulses LED sequence.
- Changed the LED used from LED_RED to LED1. Only 58/174 targets seem to define LED_RED but they all define LED1.
- Removed all ERROR_RED and ERROR_PATTERN definitions from targets/targets.json
Some block devices (for example I2C EEPROM) can be erased at the byte
level. These aren't really block devices, but fall under the block
device API. For these devices, the fat filesystem needs to use a lower
bound on the block size. In this case we used 512 bytes is used since
it is already a standard.
This function provides a shortcut to reformatting a mounted filesystem.
Also, since this function is a virtual member of the FileSystem class,
the user does not need to know the underlying filesystem to reformat
the underlying storage.