RC sweep oscillator circuit diagram

主程序如下:  /************************************************************  * Program: AVRGCC - RC5 Test  * Comments: RC5 decoder  * target mcu: 8515  ***********************************************************/  #include   #include   #include   #include "lcd.h"  unsigned int heartbeat=0;  // RC5 variables

The calibrated on-chip RC oscillator provides a fixed 8 MHz or 4 MHz clock. These frequencies are nominal values ​​at 3V and 25°C. If the frequency exceeds the device nominal value, the CKDIV8 fuse must be programmed to divide the internal frequency by 8 during the startup phase. See P24 "System Clock Prescaler" for d

1 Interrupt system structure The following figure shows the path from the interrupt pin to the interrupt entry: It is not difficult to see from the figure that T0 and T1 pass through the registers TCON, IE, and IP. Therefore, we must configure the functions of these registers when writing programs, so that the CPU w

    Abstract: RC-207 is an I/O main controller chip produced by Japan's RORZE Company. It has strong control functions. This article introduces the main performance and characteristics of the I/O master controller RC-207, and gives the hardware composition and software design method of the X and Y scanning detection