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Need help with compiling my first simple homebrew

 
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bykte



Joined: 01 Jun 2008
Posts: 3
PostPosted: Sun Jun 01, 2008 1:59 pm    Post subject: Need help with compiling my first simple homebrew Reply with quote
Hello everyone,

Firstly, I have followed the guide from http://forums.qj.net/f-psp-development-forum-11/t-guide-psp-development-environment-setup-tutorial-100222.html and have successfully gotten a PSP development environment working.

Secondly, my first attempt was to compile the samples from the PSPSDK and running it through my PSP. Mine's a SLIM edition with 3.90m33-3 CFW. However, I simply cannot get the EBOOT.PBP compiled from the samples working on my PSP. Here's the problem: My PSP will shutdown by itself within a few seconds of executing the homebrew. I have tried a simple hello world and the results are sadly the same. Anyone knows what I might have done wrongly? Please enlighten me. Thanks in advance.

One of the samples I tried is the controller/basic.

Makefile
Code:

TARGET = controller_basic
OBJS = main.o
 
INCDIR =
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)
 
BUILD_PRX = 1
PSP_FW_VERSION = 390
 
LIBDIR =
LDFLAGS =
 
EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = Basic controller sample
 
PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak


main.c
Code:

/*
 * PSP Software Development Kit - http://www.pspdev.org
 * -----------------------------------------------------------------------
 * Licensed under the BSD license, see LICENSE in PSPSDK root for details.
 *
 * main.c - Basic Input demo -- reads from control pad and indicates button
 *          presses.
 *
 * Copyright (c) 2005 Marcus R. Brown <mrbrown@ocgnet.org>
 * Copyright (c) 2005 James Forshaw <tyranid@gmail.com>
 * Copyright (c) 2005 John Kelley <ps2dev@kelley.ca>
 * Copyright (c) 2005 Donour Sizemore <donour@uchicago.edu>
 *
 * $Id: main.c 1095 2005-09-27 21:02:16Z jim $
 */
#include <pspkernel.h>
#include <pspdebug.h>
#include <pspctrl.h>
#include <stdlib.h>
#include <string.h>

/* Define the module info section */
PSP_MODULE_INFO("CONTROLTEST", 0, 1, 1);

/* Define the main thread's attribute value (optional) */
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER | THREAD_ATTR_VFPU);

/* Define printf, just to make typing easier */
#define printf   pspDebugScreenPrintf

void dump_threadstatus(void);

int done = 0;

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common)
{
   done = 1;
   return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp)
{
   int cbid;

   cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
   sceKernelRegisterExitCallback(cbid);
   sceKernelSleepThreadCB();

   return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void)
{
   int thid = 0;

   thid = sceKernelCreateThread("update_thread", CallbackThread,
                 0x11, 0xFA0, 0, 0);
   if(thid >= 0)
   {
      sceKernelStartThread(thid, 0, 0);
   }

   return thid;
}

int main(void)
{
   SceCtrlData pad;

   pspDebugScreenInit();
   SetupCallbacks();

   sceCtrlSetSamplingCycle(0);
   sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);

   while(!done){
      pspDebugScreenSetXY(0, 2);

          sceCtrlReadBufferPositive(&pad, 1);

      printf("Analog X = %d ", pad.Lx);
      printf("Analog Y = %d \n", pad.Ly);

      if (pad.Buttons != 0){
         if (pad.Buttons & PSP_CTRL_SQUARE){
            printf("Square pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_TRIANGLE){
            printf("Triangle pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_CIRCLE){
            printf("Cicle pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_CROSS){
            printf("Cross pressed \n");
         }

         if (pad.Buttons & PSP_CTRL_UP){
            printf("Up pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_DOWN){
            printf("Down pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_LEFT){
            printf("Left pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_RIGHT){
            printf("Right pressed \n");
         }     

         if (pad.Buttons & PSP_CTRL_START){
            printf("Start pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_SELECT){
            printf("Select pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_LTRIGGER){
            printf("L-trigger pressed \n");
         }
         if (pad.Buttons & PSP_CTRL_RTRIGGER){
            printf("R-trigger pressed \n");
         }     
      }
   }

   sceKernelExitGame();
   return 0;
}


p.s. I could be experiencing the same problem as http://forums.ps2dev.org/viewtopic.php?t=10407

Last edited by bykte on Sun Jun 01, 2008 2:27 pm; edited 1 time in total
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Wally



Joined: 26 Sep 2005
Posts: 672
PostPosted: Sun Jun 01, 2008 2:27 pm    Post subject: Reply with quote
you havent defined your HEAP size.

Try PSP_HEAP_SIZE_KB(20480);

in the main.c file :)

Wally
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bykte



Joined: 01 Jun 2008
Posts: 3
PostPosted: Sun Jun 01, 2008 2:29 pm    Post subject: Reply with quote
Wally4000 wrote:
you havent defined your HEAP size.

Try PSP_HEAP_SIZE_KB(20480);

in the main.c file :)

Wally


Thanks for your reply, Wally.

I have edited the main.c by adding

Code:
PSP_HEAP_SIZE_KB(20480);


and the results are still the same; PSP shutdowns by itself with a "poof" like sound.
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Sun Jun 01, 2008 3:12 pm    Post subject: Reply with quote
Add a delay to your loop. You're blasting through the loop as fast as the PSP can go. Some things won't work like that. You should add an sceKernelDelayThread() or a wait on the vertical blank.
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