STC micro STC8A8K64D4 Series Reference Manual page 629

STC8A8K64D4 Series Manual
sfr P_SW2 =
#define I2CCFG
#define I2CMSCR
#define I2CMSST
#define I2CSLCR
#define I2CSLST
#define I2CSLADR
#define I2CTXD
#define I2CRXD
sfr P0M1 =
sfr P0M0 =
sfr P1M1 =
sfr P1M0 =
sfr P2M1 =
sfr P2M0 =
sfr P3M1 =
sfr P3M0 =
sfr P4M1 =
sfr P4M0 =
sfr P5M1 =
sfr P5M0 =
sbit SDA =
sbit SCL =
bit isda;
bit isma;
unsigned char addr;
unsigned char pdata buffer[256];
void I2C_Isr() interrupt 24
{
_push_(P_SW2);
P_SW2 |= 0x80;
if (I2CSLST & 0x40)
{
I2CSLST &= ~0x40;
}
else if (I2CSLST & 0x20)
{
I2CSLST &= ~0x20;
if (isda)
{
isda = 0;
}
else if (isma)
{
isma = 0;
addr = I2CRXD;
I2CTXD = buffer[addr];
}
else
{
buffer[addr++] = I2CRXD;
}
0xba;
(*(unsigned char volatile xdata *)0xfe80)
(*(unsigned char volatile xdata *)0xfe81)
(*(unsigned char volatile xdata *)0xfe82)
(*(unsigned char volatile xdata *)0xfe83)
(*(unsigned char volatile xdata *)0xfe84)
(*(unsigned char volatile xdata *)0xfe85)
(*(unsigned char volatile xdata *)0xfe86)
(*(unsigned char volatile xdata *)0xfe87)
0x93;
0x94;
0x91;
0x92;
0x95;
0x96;
0xb1;
0xb2;
0xb3;
0xb4;
0xc9;
0xca;
P1^4;
P1^5;
//Device address flag
//Storage address flag
//Handle the START event
//Handle the RECV event
//Handle the RECV event (RECV DEVICE ADDR)
//Handle the RECV event (RECV MEMORY ADDR)
//Handle the RECV event (RECV DATA)
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