SPI without MOSI on STM32F4 asserts at runtime

Mbed OS Bugs
#1

The documentation for mbed 5.15 states that the SPI constructor can take NC for the MOSI or MISO pin if it is not used. This compiles fine, but it generates a runtime assert:

Error Message: Assertion failed: pin != (PinName)NC
File: …/mbed-os\targets\TARGET_STM\pinmap.c+62

because the spi_init_direct function in stm_spi_api calls pin_function() at line 172 with the PinName before it checks whether it is NC or not in line 201.

Is there a known work around for this?

#2

Hi
I think this is corrected on mbed-os-6 branch, since