Lpc2000

Look at LPC2100_INTSIO.zip (interrupt-driven sio example for philips 
lpc2100 on the Keil Download Area.  I used this as a model for my 
design.

P.S., next time you try to post some code, try not to run it thru a 
compactor (i.e., one statement after the other on the same line).

   Barry

--- In lpc2000@yahoogroups.com, Sridhar gadda <sridhargadda@y...> 
wrote:
> 
> Hi,
> 
> I want to use Ulink for downloading frimware as well as the µvision
(keil) debug serial window to diplay result. I can display the string 
but not hex values.
> 
> my code is
> 
> #include <LPC21xx.H>#include <DebugIO.H>#include <stdio.h>void 
init_serial(void){  PINSEL0 |= 0x00000005;  U0LCR = 0x83;  U0DLL = 
16;  /* 57600 Baud rate @ 15MHz VPB clock */  U0LCR = 0x03;}int 
putchar (int ch) 				/* write character to 
serail port */{  #ifdef DEBUG  return (__dbg_putchar(ch));  #else  if 
(ch == '\n')    {	   while(!(U0LSR & 0x20));		U0THR 
= '\r';	 }  while (!(U0LSR & 0x20));  return (U0THR = ch);  #endif}
int getchar (void)               /* Read character from serial port */
{  #ifdef DEBUG  return (__dbg_getkey());  #else  while(!(U0LSR & 
0x01));  return (U0RBR);  #endif}void puthex (int hex){  if (hex > 
9)  putchar('A' + (hex-10));  else putchar('0' + hex);}void putstr 
(char *p){  while(*p)    {	   putchar (*p++);	 }}int main ()
{  #ifndef DEBUG  init_serial();  #endifputstr("\n");putstr("\n The 
value in hex is 0x");puthex((byte >> 4) & 0x0F);   / byte = 8 bit 
char value */puthex (byte & 0x0F);}
> 
> I can see the result on Hyperterminal but on serial window of IDE. 
I see only my srting The Value in hex is 0x and not hex values which 
I want to display.
> 
> where am I doing wrong.
> 
> Please help me out.
> 
> regards,
> 
> Sridhar 
> --------------------------------------------------------------------
--------------------------------------------------------------------
>  
> Debug communication channel 
> --------------------------------------------------------------------
--------------------------------------------------------------------
>  
> #include "DebugIO.H"
> 
> #define DBG_PUTCHAR __asm {                 /* Macro: 
DBG_PUTCHAR      */ \
>   __asm         CMP     R0,#0x0A            /* Check 'ch' for 
LF       */ \
>   __asm         BNE     wwait               /* Branch if not 
LF        */ \
>   __asm wwait0: MRC     p14,0,R1,c0,c0      /* Read DCC 
Control        */ \
>   __asm         TST     R1,#0x02            /* Check W 
bit             */ \
>   __asm         BNE     wwait0              /* Branch if W = 
1         */ \
>   __asm         MOV     R1,#0x0D            /* Insert CR 
Code          */ \
>   __asm         MCR     p14,0,R1,c1,c0      /* Write CR to 
DCC         */ \
>   __asm wwait:  MRC     p14,0,R1,c0,c0      /* Read DCC 
Control        */ \
>   __asm         TST     R1,#0x02            /* Check W 
bit             */ \
>   __asm         BNE     wwait               /* Branch if W = 
1         */ \
>   __asm         MCR     p14,0,R0,c1,c0      /* Write 'ch' to 
DCC       */ \
> }
> #define DBG_GETKEY  __asm {                 /* Macro: 
DBG_GETKEY       */ \
>   __asm rwait:  MRC     p14,0,R0,c0,c0      /* Read DCC 
Control        */ \
>   __asm         TST     R0,#0x01            /* Check R 
bit             */ \
>   __asm         BEQ     rwait               /* Branch if R = 
0         */ \
>   __asm         MRC     p14,0,R0,c1,c0      /* Read from 
DCC           */ \
> }
> #define DBG_ISKEY   __asm {                 /* Macro: 
DBG_ISKEY        */ \
>   __asm rwait:  MRC     p14,0,R0,c0,c0      /* Read DCC 
Control        */ \
>   __asm         AND     R0,R0,#0x01         /* Mask R 
bit              */ \
> }
> #define DBG_CR2LF   __asm {                 /* Macro: 
DBG_CR2LF        */ \
>   __asm         CMP     R0,#0x0D            /* Check for 
CR            */ \
>   __asm         MOVEQ   R0,#0x0A            /* Replace CR with 
LF      */ \
> }
> 
> // Write Character to Debug Channel
> int __dbg_putchar (int ch) __arm {
>   DBG_PUTCHAR
> }
> // Read Character with echo from Debug Channel
> int __dbg_getchar (void) __arm {
>   DBG_GETKEY
>   DBG_CR2LF
>   DBG_PUTCHAR
> }
> // Read Character from Debug Channel
> int __dbg_getkey (void) __arm {
>   DBG_GETKEY
> }
> // Check if Character is available
> int __dgb_iskey (void) __arm {
>   DBG_ISKEY
> }
> 
> --------------------------------------------------------------------
--------------------------------------------------------------------
>  
> thanks
>  
> sridhar
> 
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