practic_les9_spi1_W25Q16JV

-- WeAct BlackPill STM32F411CEU6 -- HSI= 16MHz -- SPI1 - Write Read Erase W25Q32 -- * GPIOB Pin3 -> SCK -- * GPIOB Pin4 -> MISO -- * GPIOB Pin5 -> MOSI -- * GPIOB Pin0 -> /CS