• Li-ion battery charger circuit using CORTEX or 8051?
    I need to use Li-ion as a power supply for my PCB. I will use solar power (converted by solar cells with light from the nearest sun) for charging it (or them if I need 2 cells). But the problem is,...
  • I do not need to be protected against myself
    #define U16 unsigned short #define U8DX unsigned char xdata * data UCDX GCDX232ptr; // receive rs 232 pointer U16 GStemp; ..... GStemp = (U16) GCDX232ptr; GStemp &= 0xFF00 ; GCDX232ptr = GStemp ;...
  • protecting some values while changing the battery
    i m working on a project with 89c51rd2. my problem is how to store some datas in memory... a passwoed for example, i store a defult value for the password when i programming. and i want the...
  • IRQ Not Firing
    Hello, I am writing an I2C master transmitter object. The problem I am having is that the IRQ Handler for I2C1 is not firing. According to the manual, it should fire after the start condition is...
  • battery simulator for 3 batteries
    hi my new project :( I'm a little confused about all the stuff about battery chargers I see for example that microchip offers a smart ic quite pretty blue to charge batteries ... with max...