Greetings all,
I've been unsuccessfully trying to place a TLC5927 into Special Mode to set the current. I use the SPI library to send it data that lights up the correct LEDs, but getting it into Special Mode takes a little bit manipulation, which is described in the TI data sheet. I attach my code to set Special Mode. Any help appreciated.
Theron Wierenga
void NormalMode()
{
stopISR();
digitalWrite(cs1, LOW); // cs1 goes to LE, pin 4, on TLC5927
digitalWrite(oe1, HIGH); // oe1 goes to OE, pin 21 on TLC5927
delayMicroseconds(1);
digitalWrite(clk, HIGH); // Clk 1, clk goes to CLK, pin 3 on TLC5927
delayMicroseconds(1);
digitalWrite(clk, LOW);
digitalWrite(oe1, LOW);
delayMicroseconds(1);
digitalWrite(clk, HIGH); // Clk 2
delayMicroseconds(1);
digitalWrite(clk, LOW);
digitalWrite(oe1, HIGH);
delayMicroseconds(1);
digitalWrite(clk, HIGH); // Clk 3
delayMicroseconds(1);
digitalWrite(clk, LOW);
delayMicroseconds(1);
digitalWrite(clk, HIGH); // Clk 4
delayMicroseconds(1);
digitalWrite(clk, LOW);
delayMicroseconds(1);
digitalWrite(clk, HIGH); // Clk 5, now in Normal Mode
delayMicroseconds(1);
startISR();
}