# hardware pinout |function|stm32 soc name|stm32 header name|fpga soc name|fpga header name| |-|-|-|-|-| |SPI MOSI|PA7|D11|L1|JA2| |SPI CLK|PA5|D13|J2|JA3| || |PPU VRAM WEN|PA9|D8|J1|JA1| || |APU PWM out|||A15|JB7| || |Player 1 up|PA10|D2| |Player 1 down|PB3|D3| |Player 1 left|PB5|D4| |Player 1 right|PB4|D5| |Player 1 primary|PB10|D6| |Player 1 secondary|PA8|D7| || |Player 2 up|PA0|A0 |Player 2 down|PA1|A1 |Player 2 left|PA4|A2 |Player 2 right|PB0|A3 |Player 2 primary|PC1|A4 |Player 2 secondary|PC0|A5