APM32 feps board W/STLINK v2

Hello

I have a board with Apm32 FEPSCBT6 text over it and wanted to know if is valid to use arduino ide to program it using like if it would be a STM32 ... no external crystal seen.
The upload blink sample through stlink v2 does not work but at least it uploads with no error. Sorry Im just starting with stm32 ecosystem.... this is not the proper board to start with but just need to understand if can be flashed... it is not obvious that no led is present on this board but pins with multimeter does not detect blinking.... tried

#define LED_BUILTIN PA14

also PA15 PA2 and PC13 with no luck. (im trying to use an unused pin in the PCB so should be fine to be PA14 or PA15 in case the pins are identical to layout pinout of STM32 F103

thks in advance

#define LED_BUILTIN PC13
// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(1000);                      // wait for a second
  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
  delay(1000);                      // wait for a second
}








STM32 ST-LINK CLI v3.3.0.0
STM32 ST-LINK Command Line Interface

ST-LINK SN: 41002500170000345233544E
ST-LINK Firmware version: V2J37S7 (Need Update)
Connected via SWD.
SWD Frequency = 4000K.
Target voltage = 3.3 V
Connection mode: Normal
Reset mode: Software reset
Device ID: 0x410 
Device flash Size: 128 Kbytes
Device family: STM32F10xx Medium-density

Loading file...
Flash Programming:
  File : C:\Users\Ux410u\AppData\Local\Temp\arduino\sketches\5421F553294BA56A778EF134D7BC4093\Blink.ino.bin
  Address : 0x08000000
Memory programming...
�������������������������������������������������� 0%
 0%������������������������������ 60%�������������������� 100%
Memory programmed in 0s and 578ms.
Programming Complete.

MCU Reset.

Application started.

Never used stm32 on arduino ( but on stm cube ide ), found this on the stm forum.
The apm32 should be compatible with stm32f103cb
Try enabling the the debugger

ok, using PC13 pin is also not working, pin is always on... the upload process resets the mcu and then starts the app, all seems to be fine but not blinking...
Maybe the pin names are different, the pinout for reference if you say is like STM32F103 is this

Pin-diagram-of-STM32F103

Mainly I need to know if the MCU is good, so I started with this simply test. but no pin is able to blink. Or something very easy and abvious is going on here . Any other clue?

sorry forgot the link to stm forum: How to program and debug the STM32 using the Ardui... - STMicroelectronics Community

yes i have followed and added steps to upload via stlink v2... that does not answer my specific questions.. thks anyway