kohacraft Lab
/
kc_matrixclock_withRTC
Dot Matrix LED clock with RTC ver1.0
TLC5940.cpp
- Committer:
- kohacraft
- Date:
- 2015-08-11
- Revision:
- 3:179ec78e9158
- Parent:
- 1:5577d93280da
File content as of revision 3:179ec78e9158:
#include "TLC5940.h" SPI driver( dp2 , NC , dp6 ); //mosi , miso , sck DigitalOut vprg = dp4; DigitalOut xlat = dp9; DigitalOut blank = dp10; //gsclk dp24に接続(CPUクロックの2分周したクロックを利用) int num_drivers = 1; void setup (int num_ics) { blank = 1; //LEDをOFF //IO0_1(dp24)をCLKOUTに設定し、gsclkとして利用する LPC_IOCON->PIO0_1 |= 1; // PIO0_1をCLKOUTとして使用する LPC_SYSCON->CLKOUTCLKSEL |= 0x3; // 0:RC 1:Xtal 2:WDT 3:mainclock LPC_SYSCON->CLKOUTUEN = 0; // レジスタ更新 LPC_SYSCON->CLKOUTUEN = 1; while (!(LPC_SYSCON->CLKOUTUEN & 0x01)); LPC_SYSCON->CLKOUTDIV |= 2; // 2分周 driver.format (6,0); driver.frequency (20000000); if (num_ics <= 0) { num_drivers = 1; } else { num_drivers = num_ics; } xlat = 0; // hold GS/DC data constant //補正データを最大に設定 vprg = 1; for (int i = 0; i<16*num_ics; i++) { driver.write (0x3F); //最大 } xlat = 1; xlat = 0; // hold GS/DC data constant driver.format (12,0); vprg = 0; // sets drivers to GS mode. Set to 1 to change to DC mode blank = 0; } void update_led (unsigned short* LEDS) { //blank = 0; for (int k = (num_drivers - 1); k >= 0; k--) { for (int i = (16 - 1); i >= 0; i--) { driver.write (*(LEDS + k + i)); } } blank = 1; xlat = 1; xlat = 0; blank = 0; driver.format (1,0); driver.write (0); driver.format (12,0); wait_us(170); //4096階調のために必要な時間 4096/24MHz }