//debug code
int main(void){
char ch;
char string[20]; // global to assist in debugging
uint32_t n;
PLL_Init(Bus50MHz); // 50 MHz
UART_Init(); // initialize UART
OutCRLF();
for(ch='A'; ch<='Z'; ch=ch+1){// print the uppercase alphabet
UART_OutChar(ch);
}
OutCRLF();
UART_OutChar(' ');
for(ch='a'; ch<='z'; ch=ch+1){// print the lowercase alphabet
UART_OutChar(ch);
}
OutCRLF();
UART_OutChar('-');
UART_OutChar('-');
UART_OutChar('>');
while(1){
UART_OutString("InString: ");
UART_InString(string,19);
UART_OutString(" OutString="); UART_OutString(string); OutCRLF();
UART_OutString("InUDec: "); n=UART_InUDec();
UART_OutString(" OutUDec="); UART_OutUDec(n); OutCRLF();
UART_OutString("InUHex: "); n=UART_InUHex();
UART_OutString(" OutUHex="); UART_OutUHex(n); OutCRLF();
}
}
//--------------------------UART_OutUHex----------------------------
// Output a 32-bit number in unsigned hexadecimal format
// Input: 32-bit number to be transferred
// Output: none
// Variable format 1 to 8 digits with no space before or after
void UART_OutUHex(uint32_t number){
// This function uses recursion to convert the number of
// unspecified length as an ASCII string
if(number >= 0x10){
UART_OutUHex(number/0x10);
UART_OutUHex(number%0x10);
}
else{
if(number < 0xA){
UART_OutChar(number+'0');
}
else{
UART_OutChar((number-0x0A)+'A');
}
}
}
static int _SH_HexDump(void)
{
char c[4];
int i, ret = 0;
if(!_SH_cmd.args[0][0])
{
fprintf(stderr, "Usage: %s <filename>\n", _SH_cmd.command);
return 1;
}
if(eFile_ROpen(_SH_cmd.args[0]))
{
fprintf(stderr, "Error opening file for reading\n");
eFile_RClose();
return 1;
}
while(1)
{
for(i = 0; i < 4; i++)
{
unsigned long l;
eFile_ReadNext(&c[0]);
eFile_ReadNext(&c[1]);
eFile_ReadNext(&c[2]);
ret = eFile_ReadNext(&c[3]);
l = ((c[3] << 24) | (c[2] << 16) | (c[1] << 8) | c[0]);
UART_OutUHex(l);
printf("\n");
if(ret || l == 0)
{
eFile_RClose();
printf("\n");
return 0;
}
}
}
}