Pin numbers STM32

[istyszy]

Hello,
I made an adapter board for the BluePill to fit on the ramps 1.4.
I have some knowledge of micro controllers but i cannot figure out the pins values from your bord config:

#define X_MIN_PIN 0xDB//0xE5
#ifndef X_MAX_PIN
#define X_MAX_PIN 0xBE//0xE4

Blue pill pin-outs are noted as PA-15 PB0-15 and so on.
Where did you get thees values in hex a?
Also how flexible is your port?
Does it support hardware SPI and I2C?

My configuration is as follows:
-STM32F103C8(CB) <STM32F407VET6 - Future upgrade>
-Modified RAMPS
-TMC2130 (SPI mode)
-I2C Display (4x20) 2004
-SPI Card Reader module
-Single analog pin - 5 button Navigation keys
-esp8266(future add-on, for connection over WiFi)

[hackaday3D]

The stm32 pin name as like PA0--PA15, so the pinmap are 0xA0--0xAF