11-09-2007, 02:52 PM
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#29
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Bush Programmer
Join Date: Nov 2005
Posts: 3,557
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Is the C serial sample really harder to understand?
Although the LUA example is a bit more than just serial recieve in this case,
the serial stuff looks about the same to me, and if anything, the LUA example is more complicated,
and harder to modify.
You already know what you want to do. YOu could skip the "Hello World", and go straight to the
serial sample which will probably already do what you want when you match the baud rate,
and make the correct cable. There's little programming involved until you want to do something
with the data you receive.
Code:
/*
* PSP Software Development Kit - http://www.pspdev.org
* -----------------------------------------------------------------------
* Licensed under the BSD license, see LICENSE in PSPSDK root for details.
*
* main.c - Basic sample to demonstrate the remote port sio.
*
* Copyright (c) 2005 James Forshaw <tyranid@gmail.com>
*
* $Id: main.c 1095 2005-09-27 21:02:16Z jim $
*/
#include <pspkernel.h>
#include <pspdebug.h>
#include <pspdisplay.h>
#include <pspsdk.h>
#include <pspctrl.h>
#include <stdio.h>
#include <string.h>
PSP_MODULE_INFO("REMOTE", 0x1000, 1, 1);
/* Define the main thread's attribute value (optional) */
PSP_MAIN_THREAD_ATTR(0);
int main(void)
{
pspDebugScreenInit();
sceCtrlSetSamplingCycle(0);
sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
/* Initialise SIO and install a kprintf handler */
pspDebugSioInit();
pspDebugSioInstallKprintf();
/* Install a stdout handler */
pspDebugInstallStdoutHandler(pspDebugSioPutData);
Kprintf("Hi from %s!\n", "Kprintf");
printf("Also hi from stdio\r\n");
pspDebugScreenPrintf("Press X to exit, tap away on your terminal to echo\n");
sceDisplayWaitVblankStart();
while(1)
{
SceCtrlData pad;
int ch;
sceCtrlReadBufferPositive(&pad, 1);
if(pad.Buttons & PSP_CTRL_CROSS)
{
break;
}
ch = pspDebugSioGetchar();
if(ch >= 0)
{
pspDebugScreenPrintf("Received %d\n", ch);
if(ch == '\r')
{
pspDebugSioPutchar('\r');
pspDebugSioPutchar('\n');
}
else
{
pspDebugSioPutchar(ch);
}
}
sceDisplayWaitVblankStart();
}
sceKernelExitGame();
return 0;
}
Code:
function scroll(image, dx, dy)
new = Image.createEmpty(image:width(), image:height())
new:blit(dx, dy, image)
return new
end
function printTerminal(text)
for i = 1, string.len(text) do
char = string.sub(text, i, i)
if char == "\n" then
terminalY = terminalY + 1
terminalX = 0
else
terminal:print(terminalX * 8, terminalY * 8, char, green)
terminalX = terminalX + 1
if terminalX >= 60 then
terminalX = 0
terminalY = terminalY + 1
end
end
if terminalY >= 34 then
terminalY = 33
terminal = scroll(terminal, 0, -8)
end
end
end
function normalizeLinefeed(text)
-- terminal programs like Hyperterminal sends just a \r for return key, convert it
result = ""
for i = 1, string.len(text) do
char = string.sub(text, i, i)
if char == "\r" then char = "\n" end
result = result .. char
end
return result
end
printTerminal("initializing SIO...\n");
System.sioInit(2400)
infoString = "starting echo...\n"
printTerminal(infoString);
System.sioWrite(infoString)
ping = 0
while true do
text = normalizeLinefeed(System.sioRead())
ping = ping + 1
if ping == 60 then
ping = 0
text = text .. "."
end
printTerminal(text)
System.sioWrite(text)
screen:blit(0, 0, terminal, 0, 0, terminal:width(), terminal:height(), false)
screen.waitVblankStart()
screen:flip()
if Controls.read():start() then break end
end
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