void LEDBar::sendLED(uint16_t data)
{
unsigned char i;
for (i = 0; i<12; i++) {
if (data & 0x0001)
send16bitData(0x00ff);
else
send16bitData(0x0000);
data = data >> 1;
}
}
void sendLED(unsigned int LEDstate)
{
unsigned char i;
for(i=0;i<12;i++)
{
if(LEDstate&0x0001)
send16bitData(ON);
else
send16bitData(SHUT);
LEDstate=LEDstate>>1;
}
}
// set led single bit, red to green, one bit for each led
// such as, index_bits = 0x05, then led 1 and led 3 will be on and the others will be off
// 0x0 = 0b000000000000000 = all leds off
// 0x05 = 0b000000000000101 = leds 1 and 3 on, the others off
// 0x155 = 0b000000101010101 = leds 1,3,5,7,9 on, 2,4,6,8,10 off
// 0x3ff = 0b000001111111111 = all leds on
void led_bar_index_bit(unsigned int index_bits)
{
send16bitData(CMDMODE);
for (int i=0;i<12;i++)
{
unsigned int state = (index_bits&0x0001) ? ON : SHUT;
send16bitData(state);
index_bits = index_bits>>1;
}
latchData();
}
// set level 0-10, red to green, where 1 is red
// level 0 means all leds off while level 5 means leds 1-5 on and 6-10 will be off
void led_bar_set_level(int level)
{
if(level>10)return;
send16bitData(CMDMODE);
for(int i=0;i<12;i++)
{
unsigned int state1 = (i<level) ? ON : SHUT;
send16bitData(state1);
}
latchData();
}
int setLedNum(int n)
{
if(n<0 || n >10){
printf("n = [0, 10]\n");
return -1;
}
send16bitData(CmdMode);
sendLED(pow(2,n)-1); // 2^n-1
latchData();
}
void MatrixDriver::updateLine()
{
unsigned char i, k, lineBits;
// disable decoder while configuring the next line
DEC_PORT &=~ _BV(DEC_E3);
// clear the MY9221 before we send the data for the next line
for (k=0;k<2;k++) {
send16bitData(CmdMode);
MY9221_PORT &=~ _BV(MY9221_DI);
for(i=0;i<192;i++) {
// toggle clock pin
MY9221_PORT ^= _BV(MY9221_DCKI);
}
}
latchData();
// now send the real data
// first data segment for the 2nd MY9221 chip
send16bitData(CmdMode);
// BLUE segment
send16bitData(0); // A3 --> BLUE8
send16bitData(255); // B3 --> BLUE7
send16bitData(0); // C3 --> BLUE6
send16bitData(255); // A2 --> BLUE5
send16bitData(0); // B2 --> BLUE4
send16bitData(255); // C2 --> BLUE3
send16bitData(0); // A1 --> BLUE2
send16bitData(255); // B1 --> BLUE1
// GREEN segment
send16bitData(0); // C1 --> GREEN8
send16bitData(0); // A0 --> GREEN7
send16bitData(0); // B0 --> GREEN6
send16bitData(0); // C0 --> GREEN5
// second data segment for the 1nd MY9221 chip
send16bitData(CmdMode);
// GREEN segment
send16bitData(0); // A3 --> GREEN4
send16bitData(0); // B3 --> GREEN3
send16bitData(0); // C3 --> GREEN2
send16bitData(0); // A2 --> GREEN1
// RED segment
send16bitData(0); // B2 --> RED8
send16bitData(255); // C2 --> RED7
send16bitData(0); // A1 --> RED6
send16bitData(255); // B1 --> RED5
send16bitData(0); // C1 --> RED4
send16bitData(255); // A0 --> RED3
send16bitData(0); // B0 --> RED2
send16bitData(255); // C0 --> RED1
// data transfered and latch it
latchData();
// change the line. we have 8 lines. m_currentLine uses therefor 3 bits
// A0, A1, A2 used consecutive ports. we can use the linenumber to switch the ports
lineBits = ((m_currentLine) << DEC_A0); // DEC_A0 is the first pin
DEC_PORT &=~ lineBits;
DEC_PORT |= lineBits;
// enable the decoder
DEC_PORT |= _BV(DEC_E3);
// increment line number and enable decoder
m_currentLine++;
if (8 >= m_currentLine) {
m_currentLine = 0;
}
}
void LEDBar::setCmdMode(void)
{
send16bitData(0x0000);
}