TV-B-Gone using Launchpad

[lastaid 15]

Hello,

 

i wanted to use the tvbgone in germany, so i had to get some european IR codes.

i got the codes from the tv-b-gone firmware along with a perl script. to match oPossum's code i had to modify it a bit though.

apparently someone uploaded the firmware file with 3 out of 3 sets of North America codes, but only 2 out of 3 EU codes, which sucks, if anyone could help with that, it would be greatly appreciated.

 

the files contain the CSS project export, the other one contains the src from oPossum as well as the modified perl script and the Codes.

 

have fun

 

 

css project http://db.tt/pn7OLD91

 

other stuff as well as perl script http://db.tt/vHcsD0ho

 

 

has anyone else build one? i mean, its nice to build a super high powered IR emitter, but with no codes?

[lastaid 15]

i added the codes for north america and europe, still no eu1, but i think with both standards this might shut off enough tvs ^^ [ has ~200codes now ]

 

http://pastebin.com/kPcvBr9x

 

can anyone living in north america give me some feedback?

[kylej1050 27]

This is sweet! Picked up a few rechargeable AA lithium ion batteries, time to actually put that 1-watt IR led I bought a couple years ago for no apparent reason to use. Stupid shopping problem.

[lastaid 15]

I have improved the code so that it uses interrupts and low power mode, but for some funky reason i can only get LPM1

 

will post code soon, found a silly bug

[lastaid 15]

Hello again

 

I just finished converting the codes from the TV-B-Gone worldcodes.c to oPossums format by hand

This version should work on EU televisions now, which actually means it works on everything PAL ( http://de.wikipedia.org/wiki/Phase_Alternating_Line )

I managed to put the msp430 in sleep mode, but only LPM1, which means there is room for improvement, but the tx_ir_carrier from oPossums code does not seem to like anything lower then LPM1 [ the status led blinks, the ir one does not ]

 

my debounde code is complete trash, but i had no love for coding after doing the manual conversion

 

have fun

 

-lastaid

 

edit: and for the actual code ... http://dl.dropbox.com/u/1413651/tvbgone_EU.zip

edit: and it works on my tv

[lastaid 15]

I just had a very nice talk with mitch altmann, the original creator of the tv b gone, and he will try to get the original codes for EU

the internet is amazing

[SugarAddict 227]

Then you would probably like this... I made one for a G2553 that was compact.

untitled.zip

 

I have a few extra boards of this... if you ask me nicely in IRC I might mail you one

[lastaid 15]

Those boards look great. Might design one myself when i find a pcb printing service in germany that is cheap

Trying to contact you via IRC now ^^

[donbindner 0]

By my count, there are two off-by-one errors in this code (well, technically one is off by two).  Since the minimum number of cycles that can be delayed within this code is 20 cycles, the first cmp should be replaced with cmp #2, R15.  And because the condition of the loop is checked at the end of the loop instead of at the beginning, the sub should be replaced with sub #1, R15.

 

Delays possible based on the value of R15 (and counting the 5 cycles for the caller's call instruction) are then:
0 -> 12 cycles

1 -> 12 cycles

2 -> 20 cycles

3 -> 30 cycles

....

                                        ; - Delay in units of 10 cycles (10 us at 1 MHz)
delay       cmp     #4, R15             ; Compare to minimum
            jlo     dlyret              ; Below minimum, return...      
            sub     #2, R15             ; Adjust loop count for overhead
            jmp     eloop               ; Make the first iteration shorter
                                        ;
delay10us   mov     R12, R15            ; C callable
                                        ;                                       
dloop       nop2                        ; 7 cycles of nop
            nop2                        ;
            nop2                        ;
eloop       nop                         ;
            dec     R15                 ; Decrement loop count - 1 cycle
            jne     dloop               ; Loop if not zero - 2 cycles
                                        ;
dlyret      ret                         ;

[mbeals 74]

Anyone try this on an FR series chip? Lots of code space, super low power idle state and the USART handles IrDA decoding/encoding in hardware. Seems like it was built for this application