Minimum spatial reference required for STM32 UCOS

Using STM32 to run UCOS, I wrote a very simple program and compiled it as follows

Program Size: Code=24562 RO-data=746 RW-data=88 ZI-data=7456 

Based on this calculation, if the FLASH is less than 24K and the RAM is less than 8K, then the UCOS of STM32 cannot be considered at all, and it can only be run bare.

The FLASH of STM32 is relatively satisfactory, generally 64K, mainly RAM. It seems that there is not much hope for STM32F0XX STM32F100

----------------------The following is main.c-----------------------

#define MAIN_C
#include "includes.h"

 
                  
void first_task(void *pdata);
void task_2(void *pdata);
void task_3(void *pdata);

 
int main()
{
 RCC_ClocksTypeDef OS_Clocks;
 bsp_Ini(); //Initialize each driver, put in bsp_ini.c
 OSInit(); //ucos system initialization  
 RCC_GetClocksFreq(&OS_Clocks);     
 OS_CPU_SysTickInit( OS_Clocks.HCLK_Frequency / OS_TICKS_PER_SEC ); //Set clock tick, 1ms
 OSTaskCreate(first_task,0,&stk1[99],task1_sn); //Create the first task
 OSStart(); //Task start
}

void first_task(void *pdata) //Create other tasks in the first task (official recommendation)
{
 INT8U err;
 int AD_value;
 pdata=pdata;

 flag1=OSFlagCreate(0,&err);      
 OSTaskCreate(task_2,0,&stk2[99],task2_sn);
 OSTaskCreate(task_3,0,&stk3[99],task3_sn);

   
 while(1)         
 { 
  AD_value=(int) ( (double) ADC_GetConversionValue(ADC1) *3/4096 * 100 ) ;
  DEBUG_COM_STREAM("\r\nAD=%L",(u8*)&AD_value);//USART_SendData(USART1, test);
  OSTimeDly(1000);
 }
}

void task_2(void *pdata) //Create other tasks in the first task (official recommendation)
{
 INT8U err1;
 char test;
 pdata=pdata;
 while(1)         
 {
  OSFlagPend(flag1,EVENT_1,OS_FLAG_WAIT_SET_ALL+OS_FLAG_CONSUME,0,&err1);
  test = (char)USART_Date;
  DEBUG_COM_STREAM("\r\nReceived:%c",(u8*)&test);//USART_SendData(USART1, test);
  DAC_SetChannel1Data(DAC_Align_12b_R, test*16);
 }
}

u8 count;
void task_3(void *pdata) //Create other tasks in the first task (official recommendation)
{
 pdata=pdata;
 GPIO_INITIAL();
 EXTI_INITIAL(ENABLE);
 while(1)         
 {  
  OSTimeDly(1000);
  count++;  
  if(count==3000)
   {PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
   RCC_Ini();//bsp_Ini();
   count=0;
   }
  else if(wake_id!=0)
   {DEBUG_COM_STREAM("wake_id=%x",(u8*)&wake_id);
   wake_id=0;
   }
  DEBUG_COM_STREAM(" I am task 3=%x",&count);
 }
}