[Keil uVision] Debug Functions for STM32F4 (Cortex-M4)

Hi,
I would like to write debug/signal functions for my STM32F429I discovery board. Unfortunately the Debugger complains with "undefined identifier" for any input or output register, e.g. S0IN or AIN0.

When I execute "DIR VTREG", the debugger outputs the following result.

TRAPS: ulong, value = 0x00000000 TRIGFLT: ulong, value = 0x00000000 STCLK: ulong, value = 0x00000000 XTAL: ulong, value = 0x007A1200 CLOCK: ulong, value = 0x007A1200

Does this mean, the registers for ADC, Serial Port or the GPIO's are not supported? The project was generated using STM32CubeMX.

Thanks in advance for any support.

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