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90110000 - LED * 90110B00 (R/W): Control register o Bit 0: Set this bit to enable green light blink data. If green blink data iteration is not on, the green light state is read from bit 0 of green blink data. o Bit 1: Set this bit and bit 6 to enable green blink data iteration. o Bit 2: Set this bit to force green light off. Overrides bit 4. o Bit 3: Set this bit to force red light off. Overrides bits 5 and 13. o Bit 4: Set this bit to force green light on. o Bit 5: Set this bit to force red light on. o Bit 6: See this bit and bit 1 to enable green blink data iteration. Reset before modifying green blink data or delay. o Bit 9: Set this bit to enable red light blink data. If red blink data iteration is not on, the red light state is read from bit 0 of red blink data. o Bit 10: Set this bit and bit 12 to enable red blink data iteration. o Bit 12: Set this bit and bit 10 to enable red blink data iteration. Reset before modifying red blink data or delay. o Bit 13: Forces red light on if bit 4 is 0, or red light off if bit 4 is 1. (?) * 90110B04 (R/W): Green blink data. 32 bits of on and off state, represented by 1 and 0. Iteration is done from bit 31 to bit 0 repeatedly. * 90110B08 (R/W): Green blink delay (negative). OS sets this to -2048. * 90110B0C (R/W): Red blink data. 32 bits of on and off state, represented by 1 and 0. Iteration is done from bit 31 to bit 0 repeatedly. * 90110B10 (R/W): Red blink delay (negative). OS sets this to -2048. Note: If red and green lights are on at the same time, the color becomes yellow.
#include <os.h>#include "console.h"#include "screen.h"#include "charmap.h"#define LED_MODE_ADDR 0x90110B00int getMem(int addr){ return *(volatile unsigned*) addr;}void setMem(int addr, int val){ *(volatile unsigned*) addr = val;}int main(int argc, char* argv[]){ int mode_orig = getMem(LED_MODE_ADDR); int mode_base = mode_orig&~0b01011001111111; //turn OFF + disable blink / iteration / force on-off clrScr(); int mode_curr=mode_base; int mode_last=mode_orig; while(!isKeyPressed(KEY_NSPIRE_ESC)) { mode_curr=mode_base; if(isKeyPressed(KEY_NSPIRE_R) || isKeyPressed(KEY_NSPIRE_J) || isKeyPressed(KEY_NSPIRE_Y)) mode_curr |= 0b100000; // force RED on if(isKeyPressed(KEY_NSPIRE_V) || isKeyPressed(KEY_NSPIRE_G) || isKeyPressed(KEY_NSPIRE_J) || isKeyPressed(KEY_NSPIRE_Y)) mode_curr |= 0b010000; // force GREEN on if(mode_curr!=mode_last) { setMem(LED_MODE_ADDR,mode_curr); mode_last = mode_curr; disp("Written LED mode: ",0); dispi(mode_curr,0); displn("",0); disp("Current LED mode: ",0); dispi(getMem(LED_MODE_ADDR),0); displn("",0); } } setMem(LED_MODE_ADDR,mode_orig); // reset return 0;}
Written LED mode: 0 // 1st loopCurrent LED mode: 5699Written LED mode: 32 // press 'R' keyCurrent LED mode: 5699Written LED mode: 0 // release 'R' keyCurrent LED mode: 5699
set_led(int color) {*(volatile unsigned*) 0x90110B00=color<<4;}
(don't do it, unless you have a second TI-Nspire to unlock it)
I'm curious what would happen if you run your program during PPT (if Ndless works in PPT), I would test it myself but I have a touchpad cas... so no Ndless.
Ah I see. I take it that they would get mad if someone messed with PTT and got it disabled, as it could get the calcs banned from school?
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Topic: Turn on the light on the Nspire (Read 27853 times)
