[ts-7000] Type Casting Error ???

["lymix3" <>]

Hi everyone..

I made ep9301 Custom board similar ts7200 edb9301  little different..
I made My own Bootloader(boot and zmodem) it's simple works

I met Strange Problem in Downloading My Own Bootloader
Download tool is cirrus download in "cirrus-arm-linux-2.0.2" package

compiling download tool has no problem,
But during downloading own bootloader, CheckSum Error and SizeError
has appeared.

i checked download.c(PC CLIENT) and /src/main.c(CUSTOM BOARD)

PC CLIENT CODE is
------------------------------------------------------------------
long lFileSize;

SendChar((char)(lFileSize & 0xFF));
printf("SendDATA %02x\r\n",(char)(lFileSize & 0xFF));
SendChar((char)((lFileSize >> 8) & 0xFF));
printf("SendDATA %02x\r\n",(char)((lFileSize >> 8) & 0xFF));
SendChar((char)((lFileSize >> 16) & 0xFF));
printf("SendDATA %02x\r\n",(char)((lFileSize >> 16) & 0xFF));
SendChar((char)((lFileSize >> 24) & 0xFF));
printf("SendDATA %02x\r\n",(char)((lFileSize >> 24) & 0xFF));


i printed "lFileSize" for each SendChar Fuction.
it works. good data...

Custom board code is...
--------------------------------------------------------------
long iFileSize;
unsigned char *pBuffer;
char    data0;
char    data1;
char    data2;
char    data3;

pBuffer = (volatile unsigned char *)&iFileSize;
        
pBuffer[0] = data0 = Serial_GetChar();
pBuffer[1] = data1 = Serial_GetChar();
pBuffer[2] = data2 = Serial_GetChar();
pBuffer[3] = data3 = Serial_GetChar();

We know if PC CLIENT send "0x11,0x22,0x33,0x44" sequencely..
Custom Board will Check 
pBuffer[0]= 0x11,pBuffer[1]= 0x22,pBuffer[2]= 0x33,pBuffer[3]= 0x44  

But, I'm so confused this result..
pBuffer[0]= 0x22,pBuffer[1]= 0x11,pBuffer[2]= 0x44,pBuffer[3]= 0x33

it seems like 16 bit big endian data...
if i have compiled big endian option, board didn't works.
because, I checked binary data of download tool, 

i thought, Serial function has Bug...
So, i changed code like this..
-----------------------------------------------------

pBuffer[0] = data0 = 0x11;
pBuffer[1] = data1 = 0x22;
pBuffer[2] = data2 = 0x33;
pBuffer[3] = data3 = 0x44;

    if( pBuffer[0] == 0x11)
        Serial_SendChar(0);
    if( pBuffer[1] == 0x22)
        Serial_SendChar(1);
    if( pBuffer[2] == 0x33)
        Serial_SendChar(2);
    if( pBuffer[3] == 0x44)
        Serial_SendChar(3);
        
    if( data0 == 0x11)
        Serial_SendChar(4);
    if( data1 == 0x22)
        Serial_SendChar(5);
    if( data2 == 0x33)
        Serial_SendChar(6);
    if( data3 == 0x44)
        Serial_SendChar(7);

4,5,6,7 has received... 1,2,3,4 is no...

result is...

pBuffer[0]=0x22, pBuffer[1]=0x11, pBuffer[2]=0x44, pBuffer[3]=0x33,
data0     =0x11, data1     =0x22, data2     =0x33, data3     =0x44

code used array value has bug.. seems like 16 bit big endian
and casting code(long & -> unsigned char *) has bug.. it's same
problem...

why happens.. hardware problem?, cross compiler problem?, compile 
option?.. do not casting 8bit pointer in bytes,strings,16bit,32bit?





 
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