STC micro STC8A8K64D4 Series - User Defined Downloading by Using Software Reset

STC8A8K64D4 Series Manual
-
- 72 -
LCALL SCANKEY ;Call Key scan module
LCALL MOTORDRIVER ;Call Motor drive module
JMP LOOP
END
6.7.4 User Defined Downloading by Using Software Reset
C language code
// Operating frequency for test is 11.0592MHz
#include "reg51.h"
#include "intrins.h"
sfr IAP_CONTR = 0xc7;
sbit P32 = P3^2;
sbit P33 = P3^3;
sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xb1;
sfr P3M0 = 0xb2;
sfr P4M1 = 0xb3;
sfr P4M0 = 0xb4;
sfr P5M1 = 0xc9;
sfr P5M0 = 0xca;
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
P32 = 1; //Test port
P33 = 1; //Test port
while (1)
{
if (!P32 && !P33)
{
IAP_CONTR |= 0x60; //Reset to ISP when P3.2 and P3.3 are both 0
}
}
}