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OnlyoutzZ
51be4c4589
The N32H7xx branch of drv_hard_i2c.c had never been compiled. The file takes its peripheral declarations from board.h, and only n32h497zgl7-evb includes n32h49x_i2c.h, so on H7xx every I2C symbol was undefined and the option could not build at all. Include the peripheral header from the driver itself, the way drv_sdram.c already does. I2C_ABORT_ON_TIMEOUT also degraded to a bare `state = I2C_READY` on H7xx, at the four rt_completion_wait() timeouts in n32_i2c_master_xfer(). The H49x implementation is written against the older IP - I2C_ClrIntPendingBit, I2C_STS2_BUSY, I2C_CTRL1_STOPGEN - none of which exist in the H7xx SDK, so give H7xx its own teardown. It disables the interrupt and DMA request sources, disables the DMA channel that would otherwise stay armed against the caller's buffer, releases the bus and clears the status residue. Only flags with a matching INTCLR bit may be passed to I2C_ClrFlag(), which is a plain "INTCLR |= flag" write; TFC (0x40) and BUSY (0x8000) have none. I2C_Configuration() was called from n32_i2c_init() but defined nowhere in the tree. It is a board hook for pin mux, which is not the driver's job - the H49x path configures no pins either - so drop the call. Verified by building n32h760zil7-stb with BSP_USING_HARD_I2C1 and its TX/RX DMA enabled, which now compiles and links with no warnings, and n32h497zgl7-evb with I2C1/I2C2 DMA enabled, whose image size is unchanged. Neither board routes I2C pins yet, so this is build-verified only, not hardware-verified.