L6218E:Undefined symbol Main (referred from *.0)错误

[gongdezhi1990]

初用ads 这个错误 怎么解决

[gongdezhi1990]

key_led_beep.s IMPORT Main AREA Init,CODE,READONLY ENTRY CODE32 START LDR R0,=0x53000000 MOV R1,#0x0 STR R1,[R0] LDR SP,=1024*4 BL Main MAIN_LOOP B MAIN_LOOP END

[gongdezhi1990]

key_led_beep.c //I/O设置 #define rGPBCON (*(volatile unsigned *)0x56000010) #define rGPBDAT (*(volatile unsigned *)0x56000014) #define rGPBUP (*(volatile unsigned *)0x56000018) #define rGPGCON (*(volatile unsigned *)0x56000060) #define rGPGDAT (*(volatile unsigned *)0x56000064) #define rGPGUP (*(volatile unsigned *)0x56000068) //设置点亮led #define LED1_ON ~(1<<5) #define LED2_ON ~(1<<6) #define LED3_ON ~(1<<7) #define LED4_ON ~(1<<8) #define LEDS_ON (LED1_ON & LED2_ON & LED3_ON & LED4_ON) //shut out beep #define BEEP_OFF ~(1<<0) //set led light #define LED1_OFF (1<<5) #define LED2_OFF (1<<6) #define LED3_OFF (1<<7) #define LED4_OFF (1<<8) #define LEDS_OFF (LED1_OFF & LED2_OFF &LED3_OFF & LED4_OFF) //start beep #define BEEP_ON (1<<0) #define KEY1_ON (1<<0) #define KEY2_ON (1<<3) #define KEY3_ON (1<<5) #define KEY4_ON (1<<6) #define KEY5_ON (1<<7) #define KEY6_ON (1<<11) void delay(int times); //将按键的状态设置为输入状态 即"00" void key_init(void) { rGPBCON &= ~((3<<0) | (3<<6) | (3<<10) | (3<<12) | (3<<14) | (3<<22)); } //将led的状态设置为输出状态 即“01” void led_init(void) { rGPBCON &= ~((3<<10) | (3<<12) | (3<<14) | (3<<16)); rGPBCON |= (1<<10 | (1<<12) | (1<<14) | (1<<16)); } //将beep的状态设置为输出状态 即“01” void beep_init(void) { rGPBCON &= ~(3<<0); rGPBCON |= (1<<0); } void delay(int times) { int i; for(;times>0;times--) for(i=0;i<10000;i++); } void Main(void) { led_init(); key_init(); beep_init(); rGPBDAT |= LEDS_OFF; while(1) { rGPBDAT &= BEEP_OFF; if(!(rGPGDAT & KEY1_ON)) { rGPBDAT |=(LEDS_OFF |BEEP_ON); rGPBDAT &=LED1_ON; delay(1); } if(!(rGPGDAT & KEY2_ON)) { rGPBDAT |=(LEDS_OFF |BEEP_ON); rGPBDAT &=LED2_ON; delay(1); } if(!(rGPGDAT & KEY3_ON)) { rGPBDAT |=(LEDS_OFF |BEEP_ON); rGPBDAT &=LED3_ON; delay(1); } if(!(rGPGDAT & KEY4_ON)) { rGPBDAT |=(LEDS_OFF |BEEP_ON); rGPBDAT &=LED4_ON; delay(1); } if(!(rGPGDAT & KEY5_ON)) { rGPBDAT |=(LEDS_OFF |BEEP_ON); rGPBDAT &=LEDS_ON; delay(1); } if(!(rGPGDAT & KEY6_ON)) { rGPBDAT |=(LEDS_OFF |BEEP_ON); delay(1); } } }

[gongdezhi1990]

本人将 void Main（） 改为int Main（）之后没有出现问题了 不理解 希望下面有人继续跟进

[大熊猫侯佩]

对main原型有要求？