suu pen
このプログラムはTLC5940のcascadに対応しています。 cascadする数は１から20の間でZ_cascadに設定してください cascad number, please be set between 1 and 20 Z_cascad. Display data D_grayData [Z_cascad] [16] Please set to.
Revision 0:2e81892b1896, committed 2011-11-22
- Comitter:
- suupen
- Date:
- Tue Nov 22 13:08:40 2011 +0000
- Commit message:
- V0.1 2001/11/22
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Nov 22 13:08:40 2011 +0000
@@ -0,0 +1,172 @@
+//=========================================
+// TLC5940 (16channel led driver)
+// This program supports the cascading of the TLC5940.
+// This program is not tested.
+//
+// cascad number, please be set between 1 and 20 Z_cascad.
+// Display data D_grayData [Z_cascad] [16] Please set to.
+//==========================================
+#include "mbed.h"
+
+#define Z_cascad (6) // cascade No (1 - 20)
+
+// TLC5940 control pin setting
+SPI spi(p5, p6, p7); //SIN (p6), SCLK,GSCLK(p7)
+
+DigitalOut XLAT(p20);
+DigitalOut BLANK(p19);
+
+DigitalOut myled1(LED1);
+DigitalOut myled3(LED3);
+
+/*
+DigitalOut DIGIT1(p21);
+DigitalOut DIGIT2(p22);
+DigitalOut DIGIT3(p24);
+DigitalOut DIGIT4(p25);
+DigitalOut DIGIT5(p23);
+*/
+
+/**********************************
+* dynamic output for com
+**********************************/
+/*
+void comOut(void){
+ static int cnt = 0;
+
+ // COM All Off
+ DIGIT1 = 0;
+ DIGIT2 = 0;
+ DIGIT3 = 0;
+ DIGIT4 = 0;
+ DIGIT5 = 0;
+
+ // COM out
+ switch(cnt){
+ case 0:
+ DIGIT1 = 1;
+ break;
+ case 1:
+ DIGIT2 = 1;
+ break;
+ case 2:
+ DIGIT3 = 1;
+ break;
+ case 3:
+ DIGIT4 = 1;
+ break;
+ case 4:
+ DIGIT5 = 1;
+ break;
+ default:
+ cnt = 0;
+ break;
+ }
+
+ if(++cnt > 4){cnt = 0;}
+}
+*/
+
+/*********************************
+* gray data set
+*********************************/
+void grayDataSet(int* p){
+ static int lightWait = 0;
+ static int D_gray = 0;
+
+ #define Z_kasan (1)
+ static int kasan = Z_kasan;
+
+ lightWait++;
+ if(lightWait == 1){
+ lightWait = 0;
+ D_gray += kasan;
+
+ if(D_gray > 4095){
+ D_gray = 4095;
+ kasan = -Z_kasan;
+ myled1 = 1;
+ }
+ else if(D_gray <= 0){
+ D_gray = 0;
+ kasan = Z_kasan;
+ myled1 = 0;
+ }
+ }
+
+ for(int c = 0; c < Z_cascad; c++){
+ for(int i = 0; i < 16; i++){
+ *(p + + c + i) = D_gray;
+ }
+ }
+}
+
+
+/**********************************
+* SPI Initalize (for TLC5960 control)
+**********************************/
+void tlc5940SpiInitalize(void){
+ spi.format(12,0);
+ spi.frequency(30000000);
+}
+
+/*********************************
+* TLC5940 Gray Data clear
+*********************************/
+void tlc5940GrayDataClear(void){
+ for(int i = 0; i < (Z_cascad * 16); i++){
+ int whoami = spi.write(0);
+ }
+
+ XLAT = 1;
+ XLAT = 0;
+}
+
+/**********************************
+* TLC5940 Gray Data Display & next data send
+***********************************/
+void tlc5940GrayDataDisplayAndSend(int* p){
+ BLANK = 1;
+ BLANK = 0;
+
+ for(int i = 0; i < (342 - (Z_cascad * 16)); i++){
+ spi.write(0);
+ }
+
+ for(int c = 0; c < Z_cascad; c++){
+ for(int i = 0; i < 16; i++){
+ spi.write(*(p + c + i));
+ }
+ }
+
+ XLAT = 1;
+ XLAT = 0;
+}
+
+/************************************
+* main
+************************************/
+int main() {
+
+
+ int D_grayData[Z_cascad][16]; // gray data = 0 to 4095 [0]:OUT0, [1]:OUT1, ...,[14]:OUT14, [15]:OUT15
+
+
+ // SPI initalize
+ tlc5940SpiInitalize();
+
+ tlc5940GrayDataClear();
+
+
+ while(1) {
+
+// comOut();
+
+ grayDataSet((int*)D_grayData);
+
+ tlc5940GrayDataDisplayAndSend((int*)D_grayData);
+
+
+
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Nov 22 13:08:40 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912