i am just begginer dont know how to solve undefined identifier

include<reg51.h> include<stdio.h> void main(void) { unsigned innt x; p1=0x00; for(x=0;x<5000;x++); p1=0xff; for(x=0;x<5000;x++) compiler shows error that p1 is undefined identifier ...
i am just begginer dont know how to solve undefined identifier

include<reg51.h> include<stdio.h> void main(void) { unsigned innt x; p1=0x00; for(x=0;x<5000;x++); p1=0xff; for(x=0;x<5000;x++) compiler shows error that p1 is undefined identifier ...
NXP LPC2xxx dont have I2C_CLK VTREG

Want to simulate I2C Master,but I2C_CLK VTREG is not included.
NXP LPC2xxx dont have I2C_CLK VTREG

Want to simulate I2C Master,but I2C_CLK VTREG is not included.
cmse_nonsecure_entry Functions dont have SG instruction

Hi, I am currently using IAR for developing a Secure and Non Secure application on an STM32U575. I am calling a function on the secure app from the non-secure app. The function has an added __attribute__...