1.Can anyone explain how the slave management works in STM32 SPI both in software and Hardware model very precisely ? please!!
2. also someone please explain how the communication and data transfer in Multi master mode in STM32 SPI happens as both are masters???.are both are acting as masters simunltaneously ??
The STM32 is an ST product - nothing to do with Keil.
So none of this has anything to do with Keil.
You need to consult the ST documentation for their product:
www.st.com/.../stm32-32-bit-arm-cortex-mcus.html