117 lines
2.6 KiB
C++
117 lines
2.6 KiB
C++
// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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// Modified Record:
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/***************************************************************************/
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#include "RGBdriver.h"
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RGBdriver::RGBdriver(uint8_t Clk, uint8_t Data)
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{
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Clkpin = Clk;
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Datapin = Data;
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pinMode(Datapin, OUTPUT);
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pinMode(Clkpin, OUTPUT);
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}
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void RGBdriver::begin(void)
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{
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Send32Zero();
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}
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void RGBdriver::end(void)
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{
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Send32Zero();
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}
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void RGBdriver::ClkRise(void)
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{
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digitalWrite(Clkpin, LOW);
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delayMicroseconds(20);
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digitalWrite(Clkpin, HIGH);
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delayMicroseconds(20);
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}
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void RGBdriver::Send32Zero(void)
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{
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unsigned char i;
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uint8_t volatile sreg;
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sreg = SREG; /* Save status register before disabling interrupts. */
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cli(); /* Disable interrupts. */
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for (i=0; i<32; i++)
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{
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digitalWrite(Datapin, LOW);
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ClkRise();
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}
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SREG = sreg; /* Enable interrupts. */
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}
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uint8_t RGBdriver::TakeAntiCode(uint8_t dat)
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{
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uint8_t tmp = 0;
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if ((dat & 0x80) == 0)
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{
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tmp |= 0x02;
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}
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if ((dat & 0x40) == 0)
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{
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tmp |= 0x01;
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}
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return tmp;
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}
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// gray data
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void RGBdriver::DatSend(uint32_t dx)
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{
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uint8_t i;
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uint8_t volatile sreg;
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sreg = SREG; /* Save status register before disabling interrupts. */
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cli(); /* Disable interrupts. */
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for (i=0; i<32; i++)
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{
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if ((dx & 0x80000000) != 0)
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{
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digitalWrite(Datapin, HIGH);
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}
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else
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{
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digitalWrite(Datapin, LOW);
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}
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dx <<= 1;
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ClkRise();
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}
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SREG = sreg; /* Enable interrupts. */
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}
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// Set color
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void RGBdriver::SetColor(uint8_t Red,uint8_t Green,uint8_t Blue)
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{
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uint32_t dx = 0;
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dx |= (uint32_t)0x03 << 30; // highest two bits 1，flag bits
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dx |= (uint32_t)TakeAntiCode(Blue) << 28;
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dx |= (uint32_t)TakeAntiCode(Green) << 26;
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dx |= (uint32_t)TakeAntiCode(Red) << 24;
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dx |= (uint32_t)Blue << 16;
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dx |= (uint32_t)Green << 8;
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dx |= Red;
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DatSend(dx);
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}
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