(c) 2011 Silenergo ltd
Communication Features for M52259DEMOKIT
CodeWarrior development studio, version 7.2,
special edition, code and data size restricted to 128KB
M52259DEMO - set right speed.
setReg8(OCLR, 0xC0); // Turn on crystal, External crystal oscillator enabled.
// External oscillator running in external crystal mode.
// External oscillator running in normal power mmode.
// Support external crystal of 32kHz.
setReg8(CCLR, 0x00); // Switch to crystal.
setReg8(OCHR, 0x00); // Turn off relaxation oscillator
MCF52259 - Asynchronous Serial Port
Communication
Binary buffer - binary data from measurements,etc...
byte DATAnBUFFER[MAXBUFFER];//ID0 ID1 DLC D0 D1 D2 D3 ... D7
for(;;)
{
// Message identifikator
DATAnBUFFER[0] = 0xEE;//ID0
DATAnBUFFER[1] = WhatToSERIAL;//ID1
// Data length = 8, D0,D1, . . . D8
DATAnBUFFER[2] = 0x08;//DLC
// Data
DATAnBUFFER[3] = 0x01;//D0
DATAnBUFFER[4] = 0x02;
DATAnBUFFER[5] = 0x03;
DATAnBUFFER[6] = 0x04;
DATAnBUFFER[7] = 0x05;
DATAnBUFFER[8] = 0x06;
DATAnBUFFER[9] = 0x07;
DATAnBUFFER[10]= 0x08;//D8
StoreEightBinCharTo16Serial(DATAnBUFFER);
}
Convert bin.data to ASCII protocol
void StoreEightBinCharTo16Serial(byte *DATAnBUFFER)
{
char i=0;
unsigned char *addrBuff = 0,
dlc = DATAnBUFFER[2];
if( TXnSERIALBUFF[0]==STX )
return; // neni odeslano cekat
WhatToSERIAL++;
if(WhatToSERIAL>128) WhatToSERIAL=0;
dlc = dlc * 2;// 2 chars for one data bin char
dlc = dlc + 1;// 1 chars for one STX bin chars
dlc = dlc + 4;// 4 chars for two id bin chars
dlc = dlc + 2;// 2 chars for one dlc bin chars
dlc = dlc + 2;// 2 chars for one SUM bin chars
for(i=0;i<dlc;i++)
{
switch(i)
{
case 0:break;// na TXn...[0] prijde STX,na konci funkce
case 1:Heasc( DATAnBUFFER[0]/*ID0*/,&TXnSERIALBUFF[i] );break;
case 2:break;
case 3:Heasc( DATAnBUFFER[1]/*ID1*/,&TXnSERIALBUFF[i] );break;
case 4:break;
case 5:Heasc( DATAnBUFFER[2]/*DLC*/,&TXnSERIALBUFF[i] );break;
case 6:break;
case 7:Heasc( DATAnBUFFER[3]/* D0*/,&TXnSERIALBUFF[i] );break;
case 8:break;
case 9:Heasc( DATAnBUFFER[4]/* D1*/,&TXnSERIALBUFF[i] );break;
case 10:break;
case 11:Heasc( DATAnBUFFER[5]/* D2*/,&TXnSERIALBUFF[i] );break;
case 12:break;
case 13:Heasc( DATAnBUFFER[6]/* D3*/,&TXnSERIALBUFF[i] );break;
case 14:break;
case 15:Heasc( DATAnBUFFER[7]/* D4*/,&TXnSERIALBUFF[i] );break;
case 16:break;
case 17:Heasc( DATAnBUFFER[8]/* D5*/,&TXnSERIALBUFF[i] );break;
case 18:break;
case 19:Heasc( DATAnBUFFER[9]/* D6*/,&TXnSERIALBUFF[i] );break;
case 20:break;
case 21:Heasc(DATAnBUFFER[10]/* D7*/,&TXnSERIALBUFF[i] );break;
case 22:break;
default:TXnSERIALBUFF[i] = 0x30;break;
}
}
addrBuff = &TXnSERIALBUFF[dlc - 2];
CounSum(&TXnSERIALBUFF[0],1,dlc-2,addrBuff);
TXnSERIALBUFF[dlc] = ETX;dlc++;
TXnSERIALBUFF[dlc] = 0x0C; //Clear HyperTrem
if( WhatToSERIAL>0)
TXnSERIALBUFF[dlc] = ETY;
TXnSERIALBUFF[0] = STX; //STX Povolit odesilani
IndexTx = 0;// Set Index to first element of Array TXn...
}
Send ASCII pr. to a.serial port
Called from IRQ timer void TI1_OnInterrupt(void)/*********************************************************/
void SendOneCharFromTxBuffer(void)
{
if( IndexTx<MAXTxBUFF )
{
if(TXnSERIALBUFF[0]==STX)
{
if( SendTxEnabled==1 )// nahodi, set IRQ AS1_OnTxChar
{
SendTxEnabled = 0;
AS1_SendChar( TXnSERIALBUFF[IndexTx] );
IndexTx++;
WatchDogTx = MAXWDTX;
}
}
}
else
{
TXnSERIALBUFF[0] = NUL;//All sended. Nuluj/reset STX.Enable insert new data / Povolit vkladani novych dat
}
}
/*********************************************************/
ASCII protocol in HyperTerminal
