Hackers Delight Weekender light display
Dependencies: NetServices mbed
Revision 0:937a0073cc9d, committed 2011-08-07
- Comitter:
- user3259784281760646093
- Date:
- Sun Aug 07 14:51:38 2011 +0000
- Commit message:
Changed in this revision
diff -r 000000000000 -r 937a0073cc9d NetServices.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NetServices.lib Sun Aug 07 14:51:38 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/segundo/code/NetServices/#4e2468d7d5cb
diff -r 000000000000 -r 937a0073cc9d RPCInterface.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RPCInterface.lib Sun Aug 07 14:51:38 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/MichaelW/code/RPCInterface/#a9e2c45097c8
diff -r 000000000000 -r 937a0073cc9d font.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/font.h Sun Aug 07 14:51:38 2011 +0000 @@ -0,0 +1,29 @@ +const unsigned char FONT[27][4] = { +0x0F,0x14,0x14,0x0F, // A +0x1F,0x11,0x15,0x0A, // B +0x0E,0x11,0x11,0x0A, // C +0x1F,0x11,0x11,0x0E, // D +0x1F,0x15,0x15,0x11, // E +0x1F,0x14,0x14,0x10, // F +0x0E,0x11,0x15,0x06, // G +0x1F,0x04,0x04,0x1F, // H +0x11,0x1F,0x11,0x11, // I +0x12,0x11,0x11,0x1E, // J +0x1F,0x11,0x11,0x09, // K +0x1F,0x01,0x01,0x01, // L +0x1F,0x08,0x0C,0x1F, // M +0x1F,0x08,0x04,0x1F, // N +0x0E,0x11,0x11,0x0E, // O +0x1F,0x14,0x14,0x08, // P 0x50 +0x0E,0x11,0x13,0x0F, // Q +0x1F,0x14,0x14,0x0B, // R +0x0A,0x19,0x15,0x0A, // S +0x10,0x1F,0x10,0x10, // T +0x1E,0x01,0x01,0x1E, // U +0x1C,0x02,0x03,0x1E, // V +0x1E,0x01,0x03,0x1E, // W +0x11,0x0E,0x0E,0x11, // X +0x10,0x08,0x0F,0x10, // Y +0x13,0x15,0x15,0x19, // Z +0x00,0x00,0x00,0x00, // space 0x20 +}; \ No newline at end of file
diff -r 000000000000 -r 937a0073cc9d main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sun Aug 07 14:51:38 2011 +0000 @@ -0,0 +1,397 @@ +#include "mbed.h" + +#include "string.h" +//#include "RPCFunction.h" +#include "font.h" + +//#include "EthernetNetIf.h" +//#include "HTTPServer.h" + + + +#define cell_height 5 +#define cell_width 4 +#define numberofcolumns 16 + +#define numberofchars 10 + +#define string1length 28 +#define string2length 36 + +#define maxtextlength 160 + +#define numberofbuffercolumns maxtextlength * (cell_width + 1) +#define bufferendspace 16 + +#define maxdisplayx 10 +#define maxdisplayy 4 + + +DigitalOut myLed1(LED1); +DigitalOut myLed2(LED2); +DigitalOut signal1(p8); +DigitalOut signal2(p10); +Serial pc(USBTX, USBRX); // tx, rx + + +typedef int cellarray[numberofcolumns][cell_height]; +typedef int bufferarray[numberofbuffercolumns + bufferendspace][cell_height]; + + +bufferarray bitmap; +cellarray displaybitmap; + +int fgcolour = 1; +int bgcolour = 0; + +const int bitsPerBulb = 26; +const int numberOfBulbs = 56; +int ten = 10; // Ten microseconds +int twenty = 20; // Twenty microseconds +int coordTable[55] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 , 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33 , 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54}; +int bulbBitStream[bitsPerBulb * numberOfBulbs]; + + +void create_bitmap(bufferarray bitmap, char* displaystring, int colour); +void text_update(char * input, char * output); +void fgcol_update(char * input, char * output); +void bgcol_update(char * input, char * output); + +void scroll(void); + +void create_string(cellarray bitmap, int startbulb, int length, int stringarray[]); + +void setBulbValue(int bulbNum, int red, int green, int blue); +void updateString(void); +void setPixel(int xCoord, int yCoord, int red, int green, int blue); + +/* +RPCFunction rpc_text_update(&text_update, "text"); +RPCFunction rpc_fgcol_update(&fgcol_update, "fgcolour"); +RPCFunction rpc_bgcol_update(&bgcol_update, "bgcolour"); +*/ +char* displaytext; +//EthernetNetIf eth; +//HTTPServer svr; + +int offset = 0; +bool updatetextrequired = false; + +#define maxoffset numberofbuffercolumns * cell_height + +Ticker scroll_ticker; + +int main(void) +{ + + displaytext = (char*)malloc(maxtextlength * sizeof(char)); +/* + printf("Setting up Ethernet...\n"); + EthernetErr ethErr = eth.setup(); + if(ethErr) + { + printf("Error %d in setup.\n", ethErr); + return -1; + } + printf("Ethernet setup OK\n"); + + FSHandler::mount("/webfs", "/"); //Mount /webfs path on web root path + svr.addHandler<FSHandler>("/"); //Default handler + + svr.addHandler<RPCHandler>("/rpc"); + svr.bind(80); +*/ + //enumerate String 1 of bulb bitstream array. + for (int bulb = 0 ; bulb < numberOfBulbs ; bulb++) { + setBulbValue(bulb, 0, 0, 0); // all WHITE + } + updateString(); + +/* while(true) + { + Net::poll(); + } + + while (true) { + for (int y = 0 ; y < 5 ; y++) { + for (int x = 0 ; x < 11 ; x++) { + + Net::poll(); + setPixel (x, y, 13, 0, 0); + updateString(); + + Net::poll(); + setPixel (x, y, 0, 0, 13); + updateString(); + } + } + }*/ + + strcpy(displaytext, "ABCDEFGHIJKLMNOPQRSTUVWXYZ "); + + create_bitmap(bitmap, displaytext, 1); + updatetextrequired = false; + + scroll_ticker.attach(&scroll, 0.07); + + while(1) + { + //Net::poll(); + if(offset == 0 && updatetextrequired == true) + { + create_bitmap(bitmap, displaytext, 1); + updatetextrequired = false; + } + } + + return(0); +} + +void scroll(void) +{ + + int red; + int green; + int blue; + +// printf("Scroll function offset %d (maxoffset = %d)\r\n", offset, maxoffset); + + + for(int y = 0; y<maxdisplayy+1; y++) + { + for(int x =0; x<maxdisplayx+1; x++) + { + int pixelcolour; + pixelcolour = bitmap[x+offset][y]; +// printf("%d",pixelcolour); + if (pixelcolour == 1) {pixelcolour = 13;} else {pixelcolour = 0;} + setPixel(x,y,pixelcolour,pixelcolour,pixelcolour); + + } +// printf("\r\n"); + } + + + + + updateString(); + + offset++; + if(offset >= 40) + { + offset = 0; + } +} + + +void text_update(char * input, char * output) +{ + int inputtextlength; + int displaytextlength; + + displaytextlength = maxtextlength; + inputtextlength = sizeof(input); + if (inputtextlength < maxtextlength) + { + displaytextlength = inputtextlength; + } + + strncpy(displaytext, input, displaytextlength); + + updatetextrequired = true; + +} + + +void fgcol_update(char * input, char * output) +{ + fgcolour = atoi(input); + updatetextrequired = true; +} + +void bgcol_update(char * input, char * output) +{ + bgcolour = atoi(input); + updatetextrequired = true; +} + +void create_string(bufferarray bitmap, int startbulb, int length, int stringarray[]) +{ + int *buff; + + buff = (int*)bitmap; + + for (int string_iter = 0; string_iter < length; string_iter++) + { + // stringarray[string_iter - startbulb] = bitmap[string_iter]; + } +} + +void create_bitmap(bufferarray bitmap, char* displaystring, int colour) +{ + int displaystringlen; + + printf("create_bitmap %s\r\n", displaystring); + + displaystringlen = strlen(displaystring); + + + if(displaystringlen > numberofchars) {displaystringlen = numberofchars;} + + for(int displaychar = 0; displaychar < numberofchars; displaychar++ ) + { + int fontref = 26; //default to space + unsigned char asciichar; + + + + asciichar = (unsigned char)(displaystring[displaychar]); + + + if (asciichar == 32) {fontref = 26;} //convert ascii space to font + if (asciichar > 64 && asciichar < 91){fontref = asciichar - 65;}// convert uppercase to font + if (asciichar > 96 && asciichar < 123){fontref = asciichar - 97;}// convert lowercase to font (hacked to upper) + + printf("char %c, fontref %d\r\n", asciichar, fontref); + + unsigned char mask = 0x10; //MAGIC NUMBER, x=0 == top + for (int columnoffset = 0; columnoffset < cell_width-1; columnoffset++) + { + + + for (int row = 0; row < cell_height; row++) + { + int bulbcontents=0; + + printf("Fontref %x, masked %x (mask %x)\r\n",FONT[fontref][row],(FONT[fontref][row] & mask), mask); + + if ((FONT[fontref][row] & mask) !=0) {bulbcontents = fgcolour;} else {bulbcontents = bgcolour;} + + bitmap[displaychar * (cell_width + 1) + columnoffset][row] = bulbcontents; //cell_width + 1 for 1 col space between chars + + } + mask = mask >> 1; + } + + } + for(int y=0; y<cell_height; y++) + { + for(int x=displaychar * 5; x<100; x++) + { + printf("%d ", bitmap[x][y]); + } + printf("\r\n"); + } +} + +void setPixel(int xCoord, int yCoord, int red, int green, int blue) { + setBulbValue(coordTable[(yCoord * 11) + xCoord], red, green, blue); +} + + +void setBulbValue(int bulbNum, int red, int green, int blue) { + + int intensity = 204; + + int bulbBitstreamStart = (bulbNum * bitsPerBulb); // So this seems right. + + // Bulb number + //pc.printf("Bulb %d ", bulbNum); + for (int loop = 5 ; loop >= 0 ; loop--) { + + if ((bulbNum % 2) > 0) { + bulbBitStream[bulbBitstreamStart + loop] = 1; + //pc.printf("1"); + } else { + bulbBitStream[bulbBitstreamStart + loop] = 0; + // pc.printf("0"); + } + bulbNum = bulbNum / 2; + } + // Intensity + //pc.printf(" Intensity %d ", intensity); + for (int loop = 13 ; loop >= 6 ; loop--) { + + if ((intensity % 2) > 0) { + bulbBitStream[bulbBitstreamStart + loop] = 1; + //pc.printf("1"); + } else { + bulbBitStream[bulbBitstreamStart + loop] = 0; + //pc.printf("0"); + } + intensity = intensity / 2; + } + // Blue + //pc.printf(" Blue %d ", blue); + for (int loop = 17 ; loop >= 14 ; loop--) { + + if ((blue % 2) > 0) { + bulbBitStream[bulbBitstreamStart + loop] = 1; + //pc.printf("1"); + } else { + bulbBitStream[bulbBitstreamStart + loop] = 0; + //pc.printf("0"); + } + blue = blue / 2; + + } + // Green + //pc.printf(" Green %d ", green); + for (int loop = 21 ; loop >= 18 ; loop--) { + + if ((green % 2) > 0) { + bulbBitStream[bulbBitstreamStart + loop] = 1; + //pc.printf("1"); + } else { + bulbBitStream[bulbBitstreamStart + loop] = 0; + //pc.printf("0"); + } + green = green / 2; + } + // Red + //pc.printf(" Red %d ", red); + for (int loop = 25 ; loop >= 22 ; loop--) { + + if ((red % 2) > 0) { + bulbBitStream[bulbBitstreamStart + loop] = 1; + //pc.printf("1"); + } else { + bulbBitStream[bulbBitstreamStart + loop] = 0; + //pc.printf("0"); + } + red = red / 2; + } +} + +void updateString(void) { + // set bus state low for 60 microseconds to make sure we're reset. + signal1 = 0; + wait_us(twenty * 3); + + for (int x = 0; x < numberOfBulbs ; x++) //Iterate for as many bulbs are in the string + {// x + //Start Bit: High for 10microSeconds + signal1 = 1; + wait_us(ten); + signal1 = 0; + + for (int i = 0; i < bitsPerBulb; i++) { // i + if (bulbBitStream[i + (x * bitsPerBulb)] == 0) { + signal1 = 0; + wait_us(ten); + signal1 = 1; + wait_us(twenty); + signal1 = 0; + } else { + signal1 = 0; + wait_us(twenty); + signal1 = 1; + wait_us(ten); + signal1 = 0; + } + } // i + wait_us(twenty*2); // Wait AT LEAST 30 microseconds to end frame, so 40 in this case. + }// x + + +} // end updateString () \ No newline at end of file
diff -r 000000000000 -r 937a0073cc9d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Aug 07 14:51:38 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912