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Library_MY9221
12-Channel LED Driver With Gray scale Adaptive Pulse Density Modulation Control IC maker MY-Semi
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main.cpp
00001 /** 00002 * @section DESCRIPTION 00003 * maker http://www.my-semi.com/content/products/product_mean.aspx?id=9 00004 * shop http://akizukidenshi.com/catalog/g/gI-09678/ 00005 * 00006 * sample program schematic 00007 * 00008 * VOUT(3.3V) VOUT VOUT 00009 * | |VDD |VDD 00010 * -------------- ------------- --------------- 00011 * mbed(LPC1768)| |MY9221(2) | |MY9221(1) | 00012 * p5 |------------|DI DO | ---------- |DI | 00013 * p10|------------|DCKI DCKO| ---------- |DCKI | 00014 * | | | | | 00015 * | 22kOhme --|REXT-C | 22kOhme --|REXT-C | 00016 * | 22kOhme --|REXT-B | 22kOhme --|REXT-B | 00017 * | 22kOhme --|REXT-A | 22kOhme --|REXT-A | 00018 * ------------- ------------- -------------- 00019 * |.........| |...........| 00020 * LED1 LED12 LED1 LED12 00021 */ 00022 00023 /* 00024 MY9366 00025 http://www.my-semi.com/content/products/product_mean.aspx?id=28 00026 */ 00027 00028 #include "mbed.h" 00029 #include "MY9221.h" 00030 MY9221 MY9221(p5, p10, 2); // di, clk, number 00031 00032 uint16_t D_gray[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 00033 float D_gray2[12] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0}; 00034 00035 int main() 00036 { 00037 00038 MY9221.commandSet(MY9221::fast, MY9221::bit16, MY9221::freq1, MY9221::waveApdm, MY9221::internal, MY9221::workLed, MY9221::free, MY9221::repeat); 00039 00040 00041 while(1) { 00042 00043 for(int i=0; i < 12; i++) { 00044 D_gray[i] += 0x100; 00045 D_gray2[i] += 0.01; 00046 if(D_gray2[i] > 1)D_gray2[i] = 0; 00047 } 00048 MY9221.dataRawSet(D_gray, 1); 00049 MY9221.dataSet(D_gray2, 2); 00050 wait_ms(20); // Image refresh Rate [s] < led gray data update cycle [s] 00051 MY9221.refresh(); 00052 00053 } 00054 }
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