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@ -39,12 +39,14 @@
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* void Max7219_init();
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* void Max7219_PutByte(uint8_t data);
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* void Max7219(uint8_t reg, uint8_t data);
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* void Max7219_LED_On(uint8_t row, uint8_t col);
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* void Max7219_LED_Off(uint8_t row, uint8_t col);
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* void Max7219_LED_Toggle(uint8_t row, uint8_t col);
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* void Max7219_LED_On(uint8_t col, uint8_t row);
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* void Max7219_LED_Off(uint8_t col, uint8_t row);
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* void Max7219_LED_Toggle(uint8_t col, uint8_t row);
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* void Max7219_Clear_Row(uint8_t row);
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* void Max7219_Clear_Column(uint8_t col);
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* void Max7219_Set_Row(uint8_t row, uint8_t val);
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* void Max7219_Set_2_Rows(uint8_t row, uint16_t val);
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* void Max7219_Set_4_Rows(uint8_t row, uint32_t val);
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* void Max7219_Set_Column(uint8_t col, uint8_t val);
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* void Max7219_idle_tasks();
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*/
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@ -62,9 +64,10 @@
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static uint8_t LEDs[8] = { 0 };
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void Max7219_PutByte(uint8_t data) {
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CRITICAL_SECTION_START
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for (uint8_t i = 8; i--;) {
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#ifdef CPU_32_BIT // The 32-bit processors are so fast, a small delay in the code is needed
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// to let the signal wires stabilize.
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delayMicroseconds(5); // to let the signal wires stabilize.
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WRITE(MAX7219_CLK_PIN, LOW); // tick
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delayMicroseconds(5);
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WRITE(MAX7219_DIN_PIN, (data & 0x80) ? HIGH : LOW); // send 1 or 0 based on data bit
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@ -79,14 +82,22 @@ void Max7219_PutByte(uint8_t data) {
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data <<= 1;
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}
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CRITICAL_SECTION_END
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}
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void Max7219(const uint8_t reg, const uint8_t data) {
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#ifdef CPU_32_BIT
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delayMicroseconds(5);
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#endif
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CRITICAL_SECTION_START
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WRITE(MAX7219_LOAD_PIN, LOW); // begin
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#ifdef CPU_32_BIT // The 32-bit processors are so fast, a small delay in the code is needed
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delayMicroseconds(5); // to let the signal wires stabilize.
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#endif
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Max7219_PutByte(reg); // specify register
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#ifdef CPU_32_BIT
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delayMicroseconds(5);
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#endif
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Max7219_PutByte(data); // put data
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#ifdef CPU_32_BIT
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delayMicroseconds(5);
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@ -96,45 +107,103 @@ void Max7219(const uint8_t reg, const uint8_t data) {
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delayMicroseconds(5);
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#endif
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WRITE(MAX7219_LOAD_PIN, HIGH);
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CRITICAL_SECTION_END
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#ifdef CPU_32_BIT
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delayMicroseconds(5);
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#endif
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}
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void Max7219_LED_Set(const uint8_t row, const uint8_t col, const bool on) {
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if (row > 7 || col > 7) return;
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if (row > 7 || col > 7) {
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int r,c;
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r = row;
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c = col;
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SERIAL_ECHOPAIR("??? Max7219_LED_Set(",r);
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SERIAL_ECHOPAIR(",",c);
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SERIAL_ECHO(")\n");
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return;
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}
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if (TEST(LEDs[row], col) == on) return; // if LED is already on/off, leave alone
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if (on) SBI(LEDs[row], col); else CBI(LEDs[row], col);
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Max7219(8 - row, LEDs[row]);
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}
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void Max7219_LED_On(const uint8_t row, const uint8_t col) {
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Max7219_LED_Set(row, col, true);
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void Max7219_LED_On(const uint8_t col, const uint8_t row) {
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if (row > 7 || col > 7) {
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int r,c;
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r = row;
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c = col;
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SERIAL_ECHOPAIR("??? Max7219_LED_On(",c);
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SERIAL_ECHOPAIR(",",r);
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SERIAL_ECHO(")\n");
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return;
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}
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Max7219_LED_Set(col, row, true);
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}
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void Max7219_LED_Off(const uint8_t row, const uint8_t col) {
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Max7219_LED_Set(row, col, false);
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void Max7219_LED_Off(const uint8_t col, const uint8_t row) {
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if (row > 7 || col > 7) {
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int r,c;
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r = row;
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c = col;
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SERIAL_ECHOPAIR("??? Max7219_LED_Off(",r);
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SERIAL_ECHOPAIR(",",c);
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SERIAL_ECHO(")\n");
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return;
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}
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Max7219_LED_Set(col, row, false);
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}
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void Max7219_LED_Toggle(const uint8_t row, const uint8_t col) {
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if (row > 7 || col > 7) return;
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void Max7219_LED_Toggle(const uint8_t col, const uint8_t row) {
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if (row > 7 || col > 7) {
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int r,c;
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r = row;
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c = col;
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SERIAL_ECHOPAIR("??? Max7219_LED_Toggle(",r);
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SERIAL_ECHOPAIR(",",c);
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SERIAL_ECHO(")\n");
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return;
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}
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if (TEST(LEDs[row], col))
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Max7219_LED_Off(row, col);
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Max7219_LED_Off(col, row);
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else
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Max7219_LED_On(row, col);
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Max7219_LED_On(col, row);
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}
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void Max7219_Clear_Column(const uint8_t col) {
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if (col > 7) return;
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if (col > 7) {
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int c;
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c = col;
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SERIAL_ECHOPAIR("??? Max7219_Clear_Column(",c);
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SERIAL_ECHO(")\n");
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return;
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}
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LEDs[col] = 0;
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Max7219(8 - col, LEDs[col]);
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}
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void Max7219_Clear_Row(const uint8_t row) {
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if (row > 7) return;
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if (row > 7) {
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int r;
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r = row;
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SERIAL_ECHOPAIR("??? Max7219_Clear_Row(",r);
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SERIAL_ECHO(")\n");
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return;
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}
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for (uint8_t c = 0; c <= 7; c++)
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Max7219_LED_Off(c, row);
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}
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void Max7219_Set_Row(const uint8_t row, const uint8_t val) {
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if (row > 7) return;
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if (row > 7 || val>255) {
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int r, v;
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r = row;
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v = val;
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SERIAL_ECHOPAIR("??? Max7219_Set_Row(",r);
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SERIAL_ECHOPAIR(",",v);
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SERIAL_ECHO(")\n");
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return;
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}
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for (uint8_t b = 0; b <= 7; b++)
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if (TEST(val, b))
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Max7219_LED_On(7 - b, row);
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@ -142,8 +211,47 @@ void Max7219_Set_Row(const uint8_t row, const uint8_t val) {
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Max7219_LED_Off(7 - b, row);
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}
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void Max7219_Set_2_Rows(const uint8_t row, const uint16_t val) {
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if (row > 6 || val>65535) {
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int r, v;
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r = row;
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v = val;
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SERIAL_ECHOPAIR("??? Max7219_Set_2_Rows(",r);
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SERIAL_ECHOPAIR(",",v);
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SERIAL_ECHO(")\n");
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return;
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}
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Max7219_Set_Row(row+1, (val & 0xff00) >> 8 );
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Max7219_Set_Row(row+0, (val & 0xff));
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}
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void Max7219_Set_4_Rows(const uint8_t row, const uint32_t val) {
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if (row > 4 ) {
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int r;
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long v;
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r = row;
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v = val;
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SERIAL_ECHOPAIR("??? Max7219_Set_4_Rows(",r);
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SERIAL_ECHOPAIR(",",v);
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SERIAL_ECHO(")\n");
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return;
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}
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Max7219_Set_Row(row+3, (val & 0xff000000) >> 24);
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Max7219_Set_Row(row+2, (val & 0xff0000) >> 16);
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Max7219_Set_Row(row+1, (val & 0xff00) >> 8);
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Max7219_Set_Row(row+0, (val & 0xff));
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}
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void Max7219_Set_Column(const uint8_t col, const uint8_t val) {
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if (col > 7) return;
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if (val > 255 || col > 7) {
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int v,c;
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v = val;
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c = col;
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SERIAL_ECHOPAIR("??? Max7219_Column(",c);
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SERIAL_ECHOPAIR(",",v);
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SERIAL_ECHO(")\n");
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return;
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}
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LEDs[col] = val;
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Max7219(8 - col, LEDs[col]);
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}
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@ -206,10 +314,23 @@ void Max7219_init() {
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* or clear a row is not very significant.
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*/
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void Max7219_idle_tasks() {
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#if MAX7219_DEBUG_STEPPER_HEAD || MAX7219_DEBUG_STEPPER_TAIL || MAX7219_DEBUG_STEPPER_QUEUE
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CRITICAL_SECTION_START
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#if MAX7219_DEBUG_STEPPER_HEAD || MAX7219_DEBUG_STEPPER_QUEUE
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uint8_t head;
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head = planner.block_buffer_head;
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#endif
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#if MAX7219_DEBUG_STEPPER_TAIL || MAX7219_DEBUG_STEPPER_QUEUE
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uint8_t tail;
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tail = planner.block_buffer_tail;
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#endif
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CRITICAL_SECTION_END
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#endif
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#if ENABLED(MAX7219_DEBUG_PRINTER_ALIVE)
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static int debug_cnt = 0;
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#ifdef CPU_32_BIT
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if (debug_cnt++ > 400) {
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if (debug_cnt++ > 1000) {
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#else
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if (debug_cnt++ > 100) {
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#endif
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@ -219,26 +340,40 @@ void Max7219_idle_tasks() {
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#endif
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#ifdef MAX7219_DEBUG_STEPPER_HEAD
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Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_HEAD);
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Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_HEAD + 1);
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if ( planner.block_buffer_head < 8)
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Max7219_LED_On( planner.block_buffer_head, MAX7219_DEBUG_STEPPER_HEAD);
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static int16_t last_head_cnt=0;
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if (last_head_cnt != head) {
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if ( last_head_cnt < 8)
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Max7219_LED_Off( last_head_cnt, MAX7219_DEBUG_STEPPER_HEAD);
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else
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Max7219_LED_Off( last_head_cnt-8, MAX7219_DEBUG_STEPPER_HEAD+1);
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last_head_cnt = head;
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if ( head < 8)
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Max7219_LED_On(head, MAX7219_DEBUG_STEPPER_HEAD);
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else
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Max7219_LED_On( planner.block_buffer_head-8, MAX7219_DEBUG_STEPPER_HEAD+1);
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Max7219_LED_On(head-8, MAX7219_DEBUG_STEPPER_HEAD+1);
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}
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#endif
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#ifdef MAX7219_DEBUG_STEPPER_TAIL
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Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_TAIL);
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Max7219_Clear_Row(MAX7219_DEBUG_STEPPER_TAIL + 1);
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if ( planner.block_buffer_tail < 8)
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Max7219_LED_On( planner.block_buffer_tail, MAX7219_DEBUG_STEPPER_TAIL );
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static int16_t last_tail_cnt=0;
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if (last_tail_cnt != tail) {
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if ( last_tail_cnt < 8)
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Max7219_LED_Off( last_tail_cnt, MAX7219_DEBUG_STEPPER_TAIL);
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else
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Max7219_LED_Off( last_tail_cnt-8, MAX7219_DEBUG_STEPPER_TAIL+1);
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last_tail_cnt = tail;
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if ( tail < 8)
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Max7219_LED_On(tail, MAX7219_DEBUG_STEPPER_TAIL);
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else
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Max7219_LED_On( planner.block_buffer_tail-8, MAX7219_DEBUG_STEPPER_TAIL+1 );
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Max7219_LED_On(tail-8, MAX7219_DEBUG_STEPPER_TAIL+1);
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}
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#endif
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#ifdef MAX7219_DEBUG_STEPPER_QUEUE
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static int16_t last_depth = 0;
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int16_t current_depth = planner.block_buffer_head - planner.block_buffer_tail;
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int16_t current_depth = head - tail;
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if (current_depth != last_depth) { // usually, no update will be needed.
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if (current_depth < 0) current_depth += BLOCK_BUFFER_SIZE;
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NOMORE(current_depth, BLOCK_BUFFER_SIZE);
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@ -249,10 +384,10 @@ void Max7219_idle_tasks() {
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en = max(current_depth, last_depth);
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if (current_depth < last_depth)
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for (uint8_t i = st; i <= en; i++) // clear the highest order LEDs
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Max7219_LED_Off(i >> 1, MAX7219_DEBUG_STEPPER_QUEUE + (i & 1));
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Max7219_LED_Off(i/2, MAX7219_DEBUG_STEPPER_QUEUE + (i & 1));
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else
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for (uint8_t i = st; i <= en; i++) // set the highest order LEDs
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Max7219_LED_On(i >> 1, MAX7219_DEBUG_STEPPER_QUEUE + (i & 1));
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for (uint8_t i = st; i <= en; i++) // set the LEDs to current depth
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Max7219_LED_On(i/2, MAX7219_DEBUG_STEPPER_QUEUE + (i & 1));
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last_depth = current_depth;
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}
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