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[2.0.x] Max7219 cleanup, simplify, and extend (#11575)

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2.0.x
Scott Lahteine 6 years ago committed by GitHub
parent 0b2d686160
commit 56f1e17a25
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 379 additions and 335 deletions
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4
Marlin/src/Marlin.cpp
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@ -535,7 +535,7 @@ void idle(
#endif
) {
#if ENABLED(MAX7219_DEBUG)
Max7219_idle_tasks();
max7219.idle_tasks();
#endif
lcd_update();
@ -672,7 +672,7 @@ void setup() {
#endif
#if ENABLED(MAX7219_DEBUG)
Max7219_init();
max7219.init();
#endif
#if ENABLED(DISABLE_JTAG)

505
Marlin/src/feature/Max7219_Debug_LEDs.cpp
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@ -31,7 +31,7 @@
* #define MAX7219_DIN_PIN 78
* #define MAX7219_LOAD_PIN 79
*
* Max7219_init() is called automatically at startup, and then there are a number of
* send() is called automatically at startup, and then there are a number of
* support functions available to control the LEDs in the 8x8 grid.
*/
@ -48,24 +48,96 @@
#include "../Marlin.h"
#include "../HAL/shared/Delay.h"
uint8_t LEDs[8 * (MAX7219_NUMBER_UNITS)] = { 0 };
Max7219 max7219;
#ifndef MAX7219_ROTATE
#define MAX7219_ROTATE 0
uint8_t Max7219::led_line[MAX7219_ROWS]; // = { 0 };
#if _ROT == 0 || _ROT == 270
#define _LED_BIT(Q) (7 - ((Q) & 0x07))
#else
#define _LED_BIT(Q) ((Q) & 0x07)
#endif
#if _ROT >= 180
#define _LED_IND(P,Q) (P + ((Q) & ~0x07))
#define _ROW_REG(Q) (max7219_reg_digit7 - ((Q) & 0x7))
#else
#define _LED_IND(P,Q) (P + ((Q) & ~0x07))
#define _ROW_REG(Q) (max7219_reg_digit0 + ((Q) & 0x7))
#endif
#if _ROT == 0 || _ROT == 180
#define MAX7219_LINE_AXIS y
#define LED_IND(X,Y) _LED_IND(Y,X)
#define LED_BIT(X,Y) _LED_BIT(X)
#elif _ROT == 90 || _ROT == 270
#define MAX7219_LINE_AXIS x
#define LED_IND(X,Y) _LED_IND(X,Y)
#define LED_BIT(X,Y) _LED_BIT(Y)
#else
#error "MAX7219_ROTATE must be a multiple of +/- 90°."
#endif
#define XOR_7219(X,Y) led_line[LED_IND(X,Y)] ^= _BV(LED_BIT(X,Y))
#define SET_LED_7219(X,Y) led_line[LED_IND(X,Y)] |= _BV(LED_BIT(X,Y))
#define CLR_LED_7219(X,Y) led_line[LED_IND(X,Y)] &= ~_BV(LED_BIT(X,Y))
#define BIT_7219(X,Y) TEST(led_line[LED_IND(X,Y)], LED_BIT(X,Y))
#ifdef CPU_32_BIT
// Approximate a 1µs delay on 32-bit ARM
#define SIG_DELAY() DELAY_US(1)
#define SIG_DELAY() DELAY_US(1) // Approximate a 1µs delay on 32-bit ARM
#undef CRITICAL_SECTION_START
#undef CRITICAL_SECTION_END
#define CRITICAL_SECTION_START NOOP
#define CRITICAL_SECTION_END NOOP
#else
// Delay for 0.1875µs (16MHz AVR) or 0.15µs (20MHz AVR)
#define SIG_DELAY() DELAY_NS(188)
#define SIG_DELAY() DELAY_NS(188) // Delay for 0.1875µs (16MHz AVR) or 0.15µs (20MHz AVR)
#endif
void Max7219_PutByte(uint8_t data) {
#ifndef CPU_32_BIT
CRITICAL_SECTION_START;
void Max7219::error(const char * const func, const int32_t v1, const int32_t v2/*=-1*/) {
#if ENABLED(MAX7219_ERRORS)
SERIAL_ECHOPGM("??? Max7219");
serialprintPGM(func);
SERIAL_CHAR('(');
SERIAL_ECHO(v1);
if (v2 > 0) SERIAL_ECHOPAIR(", ", v2);
SERIAL_CHAR(')');
SERIAL_EOL();
#else
UNUSED(func); UNUSED(v1); UNUSED(v2);
#endif
}
/**
* Flip the lowest n_bytes of the supplied bits:
* flipped(x, 1) flips the low 8 bits of x.
* flipped(x, 2) flips the low 16 bits of x.
* flipped(x, 3) flips the low 24 bits of x.
* flipped(x, 4) flips the low 32 bits of x.
*/
inline uint32_t flipped(const uint32_t bits, const uint8_t n_bytes) {
uint32_t mask = 1, outbits = 0;
for (uint8_t b = 0; b < n_bytes * 8; b++) {
outbits <<= 1;
if (bits & mask) outbits |= 1;
mask <<= 1;
}
return outbits;
}
void Max7219::noop() {
CRITICAL_SECTION_START;
SIG_DELAY();
WRITE(MAX7219_DIN_PIN, LOW);
for (uint8_t i = 16; i--;) {
SIG_DELAY();
WRITE(MAX7219_CLK_PIN, LOW);
SIG_DELAY();
WRITE(MAX7219_CLK_PIN, HIGH);
SIG_DELAY();
}
CRITICAL_SECTION_END;
}
void Max7219::putbyte(uint8_t data) {
CRITICAL_SECTION_START;
for (uint8_t i = 8; i--;) {
SIG_DELAY();
WRITE(MAX7219_CLK_PIN, LOW); // tick
@ -76,11 +148,10 @@ void Max7219_PutByte(uint8_t data) {
SIG_DELAY();
data <<= 1;
}
#ifndef CPU_32_BIT
CRITICAL_SECTION_END;
#endif
CRITICAL_SECTION_END;
}
void Max7219_pulse_load() {
void Max7219::pulse_load() {
SIG_DELAY();
WRITE(MAX7219_LOAD_PIN, LOW); // tell the chip to load the data
SIG_DELAY();
@ -88,24 +159,43 @@ void Max7219_pulse_load() {
SIG_DELAY();
}
void Max7219(const uint8_t reg, const uint8_t data) {
void Max7219::send(const uint8_t reg, const uint8_t data) {
SIG_DELAY();
#ifndef CPU_32_BIT
CRITICAL_SECTION_START;
#endif
CRITICAL_SECTION_START;
SIG_DELAY();
Max7219_PutByte(reg); // specify register
putbyte(reg); // specify register
SIG_DELAY();
Max7219_PutByte(data); // put data
#ifndef CPU_32_BIT
CRITICAL_SECTION_END;
#endif
putbyte(data); // put data
CRITICAL_SECTION_END;
}
// Send out a single native row of bits to all units
void Max7219::all(const uint8_t line) {
for (uint8_t u = 0; u < MAX7219_ROWS; u += 8)
send(_ROW_REG(line), led_line[u + (line & 0x7)]);
pulse_load();
}
// Send out a single native row of bits to just one unit
void Max7219::one(const uint8_t line) {
for (uint8_t u = MAX7219_NUMBER_UNITS; u--;) {
if (u == (line >> 3))
send(_ROW_REG(line), led_line[line]);
else
noop();
}
pulse_load();
}
void Max7219::set(const uint8_t line, const uint8_t bits) {
led_line[line] = bits;
all(line);
}
#if ENABLED(MAX7219_NUMERIC)
// Draw an integer with optional leading zeros and optional decimal point
void Max7219_Print(const uint8_t start, int16_t value, uint8_t size, const bool leadzero=false, bool dec=false) {
void Max7219::print(const uint8_t start, int16_t value, uint8_t size, const bool leadzero=false, bool dec=false) {
constexpr uint8_t led_numeral[10] = { 0x7E, 0x60, 0x6D, 0x79, 0x63, 0x5B, 0x5F, 0x70, 0x7F, 0x7A },
led_decimal = 0x80, led_minus = 0x01;
@ -114,11 +204,11 @@ void Max7219(const uint8_t reg, const uint8_t data) {
while (size--) {
const bool minus = neg && blank;
if (minus) neg = false;
Max7219(
send(
max7219_reg_digit0 + start + size,
minus ? led_minus : blank ? 0x00 : led_numeral[value % 10] | (dec ? led_decimal : 0x00)
);
Max7219_pulse_load(); // tell the chips to load the clocked out data
pulse_load(); // tell the chips to load the clocked out data
value /= 10;
if (!value && !leadzero) blank = true;
dec = false;
@ -126,247 +216,200 @@ void Max7219(const uint8_t reg, const uint8_t data) {
}
// Draw a float with a decimal point and optional digits
void Max7219_Print(const uint8_t start, const float value, const uint8_t pre_size, const uint8_t post_size, const bool leadzero=false) {
if (pre_size) Max7219_Print(start, value, pre_size, leadzero, !!post_size);
void Max7219::print(const uint8_t start, const float value, const uint8_t pre_size, const uint8_t post_size, const bool leadzero=false) {
if (pre_size) print(start, value, pre_size, leadzero, !!post_size);
if (post_size) {
const int16_t after = ABS(value) * (10 ^ post_size);
Max7219_Print(start + pre_size, after, post_size, true);
print(start + pre_size, after, post_size, true);
}
}
#endif // MAX7219_NUMERIC
inline void Max7219_Error(const char * const func, const int32_t v1, const int32_t v2=-1) {
#if ENABLED(MAX7219_ERRORS)
SERIAL_ECHOPGM("??? ");
serialprintPGM(func);
SERIAL_CHAR('(');
SERIAL_ECHO(v1);
if (v2 > 0) SERIAL_ECHOPAIR(", ", v2);
SERIAL_CHAR(')');
SERIAL_EOL();
#else
UNUSED(func); UNUSED(v1); UNUSED(v2);
#endif
// Modify a single LED bit and send the changed line
void Max7219::led_set(const uint8_t x, const uint8_t y, const bool on) {
if (x > MAX7219_X_LEDS - 1 || y > MAX7219_Y_LEDS - 1) return error(PSTR("led_set"), x, y);
if (BIT_7219(x, y) == on) return;
XOR_7219(x, y);
all(MAX7219_LINE_AXIS);
}
/**
* uint32_t flipped(const uint32_t bits, const uint8_t n_bytes) operates on the number
* of bytes specified in n_bytes. The lower order bits of the supplied bits are flipped.
* flipped( x, 1) flips the low 8 bits of x.
* flipped( x, 2) flips the low 16 bits of x.
* flipped( x, 3) flips the low 24 bits of x.
* flipped( x, 4) flips the low 32 bits of x.
*/
void Max7219::led_on(const uint8_t x, const uint8_t y) {
if (x > MAX7219_X_LEDS - 1 || y > MAX7219_Y_LEDS - 1) return error(PSTR("led_on"), x, y);
led_set(x, y, true);
}
inline uint32_t flipped(const uint32_t bits, const uint8_t n_bytes) {
uint32_t mask = 1, outbits = 0;
for (uint8_t b = 0; b < n_bytes * 8; b++) {
outbits = (outbits << 1);
if (bits & mask)
outbits |= 1;
mask <<= 1;
}
return outbits;
void Max7219::led_off(const uint8_t x, const uint8_t y) {
if (x > MAX7219_X_LEDS - 1 || y > MAX7219_Y_LEDS - 1) return error(PSTR("led_off"), x, y);
led_set(x, y, false);
}
// Modify a single LED bit and send the changed line
void Max7219_LED_Set(const uint8_t x, const uint8_t y, const bool on) {
if (x > (MAX7219_X_LEDS - 1) || y > (MAX7219_Y_LEDS - 1)) return Max7219_Error(PSTR("Max7219_LED_Set"), x, y);
if (BIT_7219(x, y) == on) return;
XOR_7219(x, y);
SEND_7219(MAX7219_UPDATE_AXIS);
void Max7219::led_toggle(const uint8_t x, const uint8_t y) {
if (x > MAX7219_X_LEDS - 1 || y > MAX7219_Y_LEDS - 1) return error(PSTR("led_toggle"), x, y);
led_set(x, y, !BIT_7219(x, y));
}
void Max7219::send_row(const uint8_t row) {
#if _ROT == 90 || _ROT == 270
all(row);
#else
UNUSED(row);
refresh();
#endif
}
void Max7219_LED_On(const uint8_t x, const uint8_t y) {
if (x > (MAX7219_X_LEDS - 1) || y > (MAX7219_Y_LEDS - 1)) return Max7219_Error(PSTR("Max7219_LED_On"), x, y);
Max7219_LED_Set(x, y, true);
void Max7219::send_column(const uint8_t col) {
#if _ROT == 90 || _ROT == 270
all(col); // Send the "column" out and strobe
#else
UNUSED(col);
refresh();
#endif
}
void Max7219_LED_Off(const uint8_t x, const uint8_t y) {
if (x > (MAX7219_X_LEDS - 1) || y > (MAX7219_Y_LEDS - 1)) return Max7219_Error(PSTR("Max7219_LED_Off"), x, y);
Max7219_LED_Set(x, y, false);
void Max7219::clear() {
ZERO(led_line);
refresh();
}
void Max7219_LED_Toggle(const uint8_t x, const uint8_t y) {
if (x > (MAX7219_X_LEDS - 1) || y > (MAX7219_Y_LEDS - 1)) return Max7219_Error(PSTR("Max7219_LED_Toggle"), x, y);
Max7219_LED_Set(x, y, !BIT_7219(x, y));
void Max7219::clear_row(const uint8_t row) {
if (row >= MAX7219_Y_LEDS) return error(PSTR("clear_row"), row);
for (uint8_t x = 0; x < MAX7219_X_LEDS; x++)
CLR_LED_7219(MAX7219_X_LEDS - 1 - x, row);
send_row(row);
}
inline void _Max7219_Set_Digit_Segments(const uint8_t digit, const uint8_t val) {
LEDs[digit] = val;
SEND_7219(digit);
void Max7219::clear_column(const uint8_t col) {
if (col >= MAX7219_X_LEDS) return error(PSTR("set_column"), col);
for (uint8_t y = 0; y < MAX7219_Y_LEDS; y++)
CLR_LED_7219(col, MAX7219_Y_LEDS - y - 1);
send_column(col);
}
/**
* void Max7219_Set_Row( const uint8_t col, const uint32_t val) plots the low order bits of
* val to the specified row of the Max7219 matrix. With 4 Max7219 units in the chain, it
* is possible to display an entire 32-bit number with one call to the function (if appropriately
* orientated).
* Plot the low order bits of val to the specified row of the matrix.
* With 4 Max7219 units in the chain, it's possible to set 32 bits at once with
* one call to the function (if rotated 90° or 180°).
*/
void Max7219_Set_Row(const uint8_t row, const uint32_t val) {
if (row >= MAX7219_Y_LEDS) return Max7219_Error(PSTR("Max7219_Set_Row"), row);
void Max7219::set_row(const uint8_t row, const uint32_t val) {
if (row >= MAX7219_Y_LEDS) return error(PSTR("set_row"), row);
uint32_t mask = 0x0000001;
for (uint8_t x = 0; x < MAX7219_X_LEDS; x++) {
if (val & mask)
SET_PIXEL_7219((MAX7219_X_LEDS-1-x), row);
SET_LED_7219(MAX7219_X_LEDS - 1 - x, row);
else
CLEAR_PIXEL_7219((MAX7219_X_LEDS-1-x), row);
CLR_LED_7219(MAX7219_X_LEDS - 1 - x, row);
mask <<= 1;
}
#if _ROT == 90 || _ROT == 270
for (uint8_t x = 0; x < 8; x++)
SEND_7219(x); // force all columns out to the Max7219 chips and strobe them
#else
SEND_7219(row); // force the single column out to the Max7219 chips and strobe them
#endif
}
void Max7219_Clear_Row(const uint8_t row) {
if (row > 7) return Max7219_Error(PSTR("Max7219_Clear_Row"), row);
#if _ROT == 90 || _ROT == 270
for (uint8_t col = 0; col < 8; col++) Max7219_LED_Off(col, row);
#else
_Max7219_Set_Digit_Segments(row, 0);
#endif
send_row(row);
}
/**
* void Max7219_Set_Column( const uint8_t col, const uint32_t val) plots the low order bits of
* val to the specified column of the Max7219 matrix. With 4 Max7219 units in the chain, it
* is possible to display an entire 32-bit number with one call to the function (if appropriately
* orientated).
* Plot the low order bits of val to the specified column of the matrix.
* With 4 Max7219 units in the chain, it's possible to set 32 bits at once with
* one call to the function (if rotated 90° or 180°).
*/
void Max7219_Set_Column(const uint8_t col, const uint32_t val) {
if (col >= MAX7219_X_LEDS) return Max7219_Error(PSTR("Max7219_Set_Column"), col);
void Max7219::set_column(const uint8_t col, const uint32_t val) {
if (col >= MAX7219_X_LEDS) return error(PSTR("set_column"), col);
uint32_t mask = 0x0000001;
for (uint8_t y = 0; y < MAX7219_Y_LEDS; y++) {
if (val & mask)
SET_PIXEL_7219(col, MAX7219_Y_LEDS - y - 1);
SET_LED_7219(col, MAX7219_Y_LEDS - y - 1);
else
CLEAR_PIXEL_7219(col, MAX7219_Y_LEDS - y - 1);
CLR_LED_7219(col, MAX7219_Y_LEDS - y - 1);
mask <<= 1;
}
#if _ROT == 90 || _ROT == 270
SEND_7219(col); // force the column out to the Max7219 chips and strobe them
#else
for (uint8_t yy = 0; yy < 8; yy++)
SEND_7219(yy); // force all columns out to the Max7219 chips and strobe them
#endif
}
void Max7219_Clear_Column(const uint8_t col) {
if (col >= MAX7219_X_LEDS) return Max7219_Error(PSTR("Max7219_Clear_Column"), col);
for (uint8_t yy = 0; yy < MAX7219_Y_LEDS; yy++)
CLEAR_PIXEL_7219(col, yy);
#if _ROT == 90 || _ROT == 270
SEND_7219(col); // force the column out to the Max7219 chips and strobe them
#else
for (uint8_t y = 0; y < 8; y++)
SEND_7219(y); // force all columns out to the Max7219 chips and strobe them
#endif
}
void Max7219_Clear() {
for (uint8_t i = 0; i <= 7; i++) { // Clear LED bitmap
for (uint8_t j = 0; j < MAX7219_NUMBER_UNITS; j++)
LEDs[i + j * 8] = 0x00;
SEND_7219(i);
}
send_column(col);
}
void Max7219_Set_Rows_16bits(const uint8_t y, uint32_t val) {
void Max7219::set_rows_16bits(const uint8_t y, uint32_t val) {
#if MAX7219_X_LEDS == 8
if (y > MAX7219_Y_LEDS - 2) return Max7219_Error(PSTR("Max7219_Set_Rows_16bits"), y, val);
Max7219_Set_Row(y + 1, val); val >>= 8;
Max7219_Set_Row(y + 0, val);
if (y > MAX7219_Y_LEDS - 2) return error(PSTR("set_rows_16bits"), y, val);
set_row(y + 1, val); val >>= 8;
set_row(y + 0, val);
#else // at least 16 bits on each row
if (y > MAX7219_Y_LEDS - 1) return Max7219_Error(PSTR("Max7219_Set_Rows_16bits"), y, val);
Max7219_Set_Row(y, val);
if (y > MAX7219_Y_LEDS - 1) return error(PSTR("set_rows_16bits"), y, val);
set_row(y, val);
#endif
}
void Max7219_Set_Rows_32bits(const uint8_t y, uint32_t val) {
void Max7219::set_rows_32bits(const uint8_t y, uint32_t val) {
#if MAX7219_X_LEDS == 8
if (y > MAX7219_Y_LEDS - 4) return Max7219_Error(PSTR("Max7219_Set_Rows_32bits"), y, val);
Max7219_Set_Row(y + 3, val); val >>= 8;
Max7219_Set_Row(y + 2, val); val >>= 8;
Max7219_Set_Row(y + 1, val); val >>= 8;
Max7219_Set_Row(y + 0, val);
if (y > MAX7219_Y_LEDS - 4) return error(PSTR("set_rows_32bits"), y, val);
set_row(y + 3, val); val >>= 8;
set_row(y + 2, val); val >>= 8;
set_row(y + 1, val); val >>= 8;
set_row(y + 0, val);
#elif MAX7219_X_LEDS == 16
if (y > MAX7219_Y_LEDS - 2) return Max7219_Error(PSTR("Max7219_Set_Rows_32bits"), y, val);
Max7219_Set_Row(y + 1, val); val >>= 16;
Max7219_Set_Row(y + 0, val);
if (y > MAX7219_Y_LEDS - 2) return error(PSTR("set_rows_32bits"), y, val);
set_row(y + 1, val); val >>= 16;
set_row(y + 0, val);
#else // at least 24 bits on each row. In the 3 matrix case, just display the low 24 bits
if (y > MAX7219_Y_LEDS - 1) return Max7219_Error(PSTR("Max7219_Set_Rows_32bits"), y, val);
Max7219_Set_Row(y, val);
if (y > MAX7219_Y_LEDS - 1) return error(PSTR("set_rows_32bits"), y, val);
set_row(y, val);
#endif
}
void Max7219_Set_Columns_16bits(const uint8_t x, uint32_t val) {
void Max7219::set_columns_16bits(const uint8_t x, uint32_t val) {
#if MAX7219_Y_LEDS == 8
if (x > MAX7219_X_LEDS - 2) return Max7219_Error(PSTR("Max7219_Set_Columns_16bits"), x, val);
Max7219_Set_Column(x + 0, val); val >>= 8;
Max7219_Set_Column(x + 1, val);
if (x > MAX7219_X_LEDS - 2) return error(PSTR("set_columns_16bits"), x, val);
set_column(x + 0, val); val >>= 8;
set_column(x + 1, val);
#else // at least 16 bits in each column
if (x > MAX7219_X_LEDS - 1) return Max7219_Error(PSTR("Max7219_Set_Columns_16bits"), x, val);
Max7219_Set_Column(x, val);
if (x > MAX7219_X_LEDS - 1) return error(PSTR("set_columns_16bits"), x, val);
set_column(x, val);
#endif
}
void Max7219_Set_Columns_32bits(const uint8_t x, uint32_t val) {
void Max7219::set_columns_32bits(const uint8_t x, uint32_t val) {
#if MAX7219_Y_LEDS == 8
if (x > MAX7219_X_LEDS - 4) return Max7219_Error(PSTR("Max7219_Set_Rows_32bits"), x, val);
Max7219_Set_Column(x + 3, val); val >>= 8;
Max7219_Set_Column(x + 2, val); val >>= 8;
Max7219_Set_Column(x + 1, val); val >>= 8;
Max7219_Set_Column(x + 0, val);
if (x > MAX7219_X_LEDS - 4) return error(PSTR("set_rows_32bits"), x, val);
set_column(x + 3, val); val >>= 8;
set_column(x + 2, val); val >>= 8;
set_column(x + 1, val); val >>= 8;
set_column(x + 0, val);
#elif MAX7219_Y_LEDS == 16
if (x > MAX7219_X_LEDS - 2) return Max7219_Error(PSTR("Max7219_Set_Rows_32bits"), x, val);
Max7219_Set_Column(x + 1, val); val >>= 16;
Max7219_Set_Column(x + 0, val);
if (x > MAX7219_X_LEDS - 2) return error(PSTR("set_rows_32bits"), x, val);
set_column(x + 1, val); val >>= 16;
set_column(x + 0, val);
#else // at least 24 bits on each row. In the 3 matrix case, just display the low 24 bits
if (x > MAX7219_X_LEDS - 1) return Max7219_Error(PSTR("Max7219_Set_Rows_32bits"), x, val);
Max7219_Set_Column(x, val);
if (x > MAX7219_X_LEDS - 1) return error(PSTR("set_rows_32bits"), x, val);
set_column(x, val);
#endif
}
void Max7219_register_setup() {
void Max7219::register_setup() {
// Initialize the Max7219
for (uint8_t i = 0; i < MAX7219_NUMBER_UNITS; i++)
Max7219(max7219_reg_scanLimit, 0x07);
Max7219_pulse_load(); // tell the chips to load the clocked out data
send(max7219_reg_scanLimit, 0x07);
pulse_load(); // tell the chips to load the clocked out data
for (uint8_t i = 0; i < MAX7219_NUMBER_UNITS; i++)
Max7219(max7219_reg_decodeMode, 0x00); // using an led matrix (not digits)
Max7219_pulse_load(); // tell the chips to load the clocked out data
send(max7219_reg_decodeMode, 0x00); // using an led matrix (not digits)
pulse_load(); // tell the chips to load the clocked out data
for (uint8_t i = 0; i < MAX7219_NUMBER_UNITS; i++)
Max7219(max7219_reg_shutdown, 0x01); // not in shutdown mode
Max7219_pulse_load(); // tell the chips to load the clocked out data
send(max7219_reg_shutdown, 0x01); // not in shutdown mode
pulse_load(); // tell the chips to load the clocked out data
for (uint8_t i = 0; i < MAX7219_NUMBER_UNITS; i++)
Max7219(max7219_reg_displayTest, 0x00); // no display test
Max7219_pulse_load(); // tell the chips to load the clocked out data
send(max7219_reg_displayTest, 0x00); // no display test
pulse_load(); // tell the chips to load the clocked out data
for (uint8_t i = 0; i < MAX7219_NUMBER_UNITS; i++)
Max7219(max7219_reg_intensity, 0x01 & 0x0F); // the first 0x0F is the value you can set
// range: 0x00 to 0x0F
Max7219_pulse_load(); // tell the chips to load the clocked out data
send(max7219_reg_intensity, 0x01 & 0x0F); // the first 0x0F is the value you can set
// range: 0x00 to 0x0F
pulse_load(); // tell the chips to load the clocked out data
}
#ifdef MAX7219_INIT_TEST
#if (MAX7219_INIT_TEST + 0) == 2
#if MAX7219_INIT_TEST == 2
inline void Max7219_spiral(const bool on, const uint16_t del) {
void Max7219::spiral(const bool on, const uint16_t del) {
constexpr int8_t way[] = { 1, 0, 0, 1, -1, 0, 0, -1 };
int8_t px = 0, py = 0, dir = 0;
for (uint8_t i = MAX7219_X_LEDS * MAX7219_Y_LEDS; i--;) {
Max7219_LED_Set(px, py, on);
led_set(px, py, on);
delay(del);
const int8_t x = px + way[dir], y = py + way[dir + 1];
if (!WITHIN(x, 0, MAX7219_X_LEDS-1) || !WITHIN(y, 0, MAX7219_Y_LEDS-1) || BIT_7219(x, y) == on) dir = (dir + 2) & 0x7;
@ -376,10 +419,10 @@ void Max7219_register_setup() {
#else
inline void Max7219_sweep(const int8_t dir, const uint16_t ms, const bool on) {
void Max7219::sweep(const int8_t dir, const uint16_t ms, const bool on) {
uint8_t x = dir > 0 ? 0 : MAX7219_X_LEDS-1;
for (uint8_t i = MAX7219_X_LEDS; i--; x += dir) {
Max7219_Set_Column(x, on ? 0xFFFFFFFF : 0x00000000);
set_column(x, on ? 0xFFFFFFFF : 0x00000000);
delay(ms);
}
}
@ -387,33 +430,33 @@ void Max7219_register_setup() {
#endif
#endif // MAX7219_INIT_TEST
void Max7219_init() {
void Max7219::init() {
SET_OUTPUT(MAX7219_DIN_PIN);
SET_OUTPUT(MAX7219_CLK_PIN);
OUT_WRITE(MAX7219_LOAD_PIN, HIGH);
delay(1);
Max7219_register_setup();
register_setup();
for (uint8_t i = 0; i <= 7; i++) { // Empty registers to turn all LEDs off
LEDs[i] = 0x00;
Max7219(max7219_reg_digit0 + i, 0);
Max7219_pulse_load(); // tell the chips to load the clocked out data
led_line[i] = 0x00;
send(max7219_reg_digit0 + i, 0);
pulse_load(); // tell the chips to load the clocked out data
}
#ifdef MAX7219_INIT_TEST
#if (MAX7219_INIT_TEST + 0) == 2
Max7219_spiral(true, 8);
#if MAX7219_INIT_TEST == 2
spiral(true, 8);
delay(150);
Max7219_spiral(false, 8);
spiral(false, 8);
#else
// Do an aesthetically-pleasing pattern to fully test the Max7219 module and LEDs.
// Light up and turn off columns, both forward and backward.
Max7219_sweep(1, 20, true);
Max7219_sweep(1, 20, false);
sweep(1, 20, true);
sweep(1, 20, false);
delay(150);
Max7219_sweep(-1, 20, true);
Max7219_sweep(-1, 20, false);
sweep(-1, 20, true);
sweep(-1, 20, false);
#endif
#endif
}
@ -425,73 +468,69 @@ void Max7219_init() {
*/
// Apply changes to update a marker
inline void Max7219_Mark16(const uint8_t y, const uint8_t v1, const uint8_t v2) {
void Max7219::mark16(const uint8_t y, const uint8_t v1, const uint8_t v2) {
#if MAX7219_X_LEDS == 8
#if MAX7219_Y_LEDS == 8
Max7219_LED_Off(v1 & 0x7, y + (v1 >= 8));
Max7219_LED_On(v2 & 0x7, y + (v2 >= 8));
led_off(v1 & 0x7, y + (v1 >= 8));
led_on(v2 & 0x7, y + (v2 >= 8));
#else
Max7219_LED_Off(y, v1 & 0xF); // The Max7219 Y-Axis has at least 16 LED's. So use a single column
Max7219_LED_On(y, v2 & 0xF);
led_off(y, v1 & 0xF); // At least 16 LEDs down. Use a single column.
led_on(y, v2 & 0xF);
#endif
#else // LED matrix has at least 16 LED's on the X-Axis. Use single line of LED's
Max7219_LED_Off(v1 & 0xf, y);
Max7219_LED_On(v2 & 0xf, y);
#else
led_off(v1 & 0xF, y); // At least 16 LEDs across. Use a single row.
led_on(v2 & 0xF, y);
#endif
}
// Apply changes to update a tail-to-head range
inline void Max7219_Range16(const uint8_t y, const uint8_t ot, const uint8_t nt, const uint8_t oh, const uint8_t nh) {
void Max7219::range16(const uint8_t y, const uint8_t ot, const uint8_t nt, const uint8_t oh, const uint8_t nh) {
#if MAX7219_X_LEDS == 8
#if MAX7219_Y_LEDS == 8
if (ot != nt) for (uint8_t n = ot & 0xF; n != (nt & 0xF) && n != (nh & 0xF); n = (n + 1) & 0xF)
Max7219_LED_Off(n & 0x7, y + (n >= 8));
led_off(n & 0x7, y + (n >= 8));
if (oh != nh) for (uint8_t n = (oh + 1) & 0xF; n != ((nh + 1) & 0xF); n = (n + 1) & 0xF)
Max7219_LED_On(n & 0x7, y + (n >= 8));
led_on(n & 0x7, y + (n >= 8));
#else // The Max7219 Y-Axis has at least 16 LED's. So use a single column
if (ot != nt) for (uint8_t n = ot & 0xF; n != (nt & 0xF) && n != (nh & 0xF); n = (n + 1) & 0xF)
Max7219_LED_Off(y, n & 0xF);
led_off(y, n & 0xF);
if (oh != nh) for (uint8_t n = (oh + 1) & 0xF; n != ((nh + 1) & 0xF); n = (n + 1) & 0xF)
Max7219_LED_On(y, n & 0xF);
led_on(y, n & 0xF);
#endif
#else // LED matrix has at least 16 LED's on the X-Axis. Use single line of LED's
if (ot != nt) for (uint8_t n = ot & 0xF; n != (nt & 0xF) && n != (nh & 0xF); n = (n + 1) & 0xF)
Max7219_LED_Off(n & 0xf, y);
led_off(n & 0xF, y);
if (oh != nh) for (uint8_t n = (oh + 1) & 0xF; n != ((nh + 1) & 0xF); n = (n + 1) & 0xF)
Max7219_LED_On(n & 0xf, y);
led_on(n & 0xF, y);
#endif
}
// Apply changes to update a quantity
inline void Max7219_Quantity16(const uint8_t y, const uint8_t ov, const uint8_t nv) {
void Max7219::quantity16(const uint8_t y, const uint8_t ov, const uint8_t nv) {
for (uint8_t i = MIN(nv, ov); i < MAX(nv, ov); i++)
#if MAX7219_X_LEDS == 8
#if MAX7219_Y_LEDS == 8
Max7219_LED_Set(i >> 1, y + (i & 1), nv >= ov); // single 8x8 LED matrix. Use two lines to get 16 LED's
led_set(i >> 1, y + (i & 1), nv >= ov); // single 8x8 LED matrix. Use two lines to get 16 LED's
#else
Max7219_LED_Set(y, i, nv >= ov); // The Max7219 Y-Axis has at least 16 LED's. So use a single column
led_set(y, i, nv >= ov); // The Max7219 Y-Axis has at least 16 LED's. So use a single column
#endif
#else
Max7219_LED_Set(i, y, nv >= ov); // LED matrix has at least 16 LED's on the X-Axis. Use single line of LED's
led_set(i, y, nv >= ov); // LED matrix has at least 16 LED's on the X-Axis. Use single line of LED's
#endif
}
void Max7219_idle_tasks() {
void Max7219::idle_tasks() {
#define MAX7219_USE_HEAD (defined(MAX7219_DEBUG_PLANNER_HEAD) || defined(MAX7219_DEBUG_PLANNER_QUEUE))
#define MAX7219_USE_TAIL (defined(MAX7219_DEBUG_PLANNER_TAIL) || defined(MAX7219_DEBUG_PLANNER_QUEUE))
#if MAX7219_USE_HEAD || MAX7219_USE_TAIL
#ifndef CPU_32_BIT
CRITICAL_SECTION_START;
#endif
CRITICAL_SECTION_START;
#if MAX7219_USE_HEAD
const uint8_t head = planner.block_buffer_head;
#endif
#if MAX7219_USE_TAIL
const uint8_t tail = planner.block_buffer_tail;
#endif
#ifndef CPU_32_BIT
CRITICAL_SECTION_END;
#endif
CRITICAL_SECTION_END;
#endif
#if ENABLED(MAX7219_DEBUG_PRINTER_ALIVE)
@ -511,12 +550,12 @@ void Max7219_idle_tasks() {
// corrupted, this will fix it within a couple seconds.
if (do_blink && ++refresh_cnt >= refresh_limit) {
refresh_cnt = 0;
Max7219_register_setup();
register_setup();
}
#if ENABLED(MAX7219_DEBUG_PRINTER_ALIVE)
if (do_blink) {
Max7219_LED_Toggle(MAX7219_X_LEDS - 1, MAX7219_Y_LEDS - 1);
led_toggle(MAX7219_X_LEDS - 1, MAX7219_Y_LEDS - 1);
next_blink = ms + 1000;
}
#endif
@ -526,7 +565,7 @@ void Max7219_idle_tasks() {
static int16_t last_head_cnt = 0xF, last_tail_cnt = 0xF;
if (last_head_cnt != head || last_tail_cnt != tail) {
Max7219_Range16(MAX7219_DEBUG_PLANNER_HEAD, last_tail_cnt, tail, last_head_cnt, head);
range16(MAX7219_DEBUG_PLANNER_HEAD, last_tail_cnt, tail, last_head_cnt, head);
last_head_cnt = head;
last_tail_cnt = tail;
}
@ -536,7 +575,7 @@ void Max7219_idle_tasks() {
#ifdef MAX7219_DEBUG_PLANNER_HEAD
static int16_t last_head_cnt = 0x1;
if (last_head_cnt != head) {
Max7219_Mark16(MAX7219_DEBUG_PLANNER_HEAD, last_head_cnt, head);
mark16(MAX7219_DEBUG_PLANNER_HEAD, last_head_cnt, head);
last_head_cnt = head;
}
#endif
@ -544,7 +583,7 @@ void Max7219_idle_tasks() {
#ifdef MAX7219_DEBUG_PLANNER_TAIL
static int16_t last_tail_cnt = 0x1;
if (last_tail_cnt != tail) {
Max7219_Mark16(MAX7219_DEBUG_PLANNER_TAIL, last_tail_cnt, tail);
mark16(MAX7219_DEBUG_PLANNER_TAIL, last_tail_cnt, tail);
last_tail_cnt = tail;
}
#endif
@ -555,7 +594,7 @@ void Max7219_idle_tasks() {
static int16_t last_depth = 0;
const int16_t current_depth = (head - tail + BLOCK_BUFFER_SIZE) & (BLOCK_BUFFER_SIZE - 1) & 0xF;
if (current_depth != last_depth) {
Max7219_Quantity16(MAX7219_DEBUG_PLANNER_QUEUE, last_depth, current_depth);
quantity16(MAX7219_DEBUG_PLANNER_QUEUE, last_depth, current_depth);
last_depth = current_depth;
}
#endif

153
Marlin/src/feature/Max7219_Debug_LEDs.h
Unescape Escape View File

@ -40,9 +40,24 @@
* faster to do a Max7219_Set_Column() with a rotation of 90 or 270 degrees than to do
* a Max7219_Set_Row(). The opposite is true for rotations of 0 or 180 degrees.
*/
#pragma once
#ifndef __MAX7219_DEBUG_LEDS_H__
#define __MAX7219_DEBUG_LEDS_H__
#ifndef MAX7219_ROTATE
#define MAX7219_ROTATE 0
#endif
#define _ROT ((MAX7219_ROTATE + 360) % 360)
#define MAX7219_ROWS (8 * (MAX7219_NUMBER_UNITS))
#if _ROT == 0 || _ROT == 180
#define MAX7219_Y_LEDS 8
#define MAX7219_X_LEDS MAX7219_ROWS
#elif _ROT == 90 || _ROT == 270
#define MAX7219_X_LEDS 8
#define MAX7219_Y_LEDS MAX7219_ROWS
#else
#error "MAX7219_ROTATE must be a multiple of +/- 90°."
#endif
//
// MAX7219 registers
@ -63,86 +78,74 @@
#define max7219_reg_shutdown 0x0C
#define max7219_reg_displayTest 0x0F
void Max7219_init();
void Max7219_register_setup();
void Max7219_PutByte(uint8_t data);
void Max7219_pulse_load();
class Max7219 {
public:
static uint8_t led_line[MAX7219_ROWS];
// Set a single register (e.g., a whole native row)
void Max7219(const uint8_t reg, const uint8_t data);
Max7219() { }
// Set a single LED by XY coordinate
void Max7219_LED_Set(const uint8_t x, const uint8_t y, const bool on);
void Max7219_LED_On(const uint8_t x, const uint8_t y);
void Max7219_LED_Off(const uint8_t x, const uint8_t y);
void Max7219_LED_Toggle(const uint8_t x, const uint8_t y);
static void init();
static void register_setup();
static void putbyte(uint8_t data);
static void pulse_load();
// Set all LEDs in a single column
void Max7219_Set_Column(const uint8_t col, const uint32_t val);
void Max7219_Clear_Column(const uint8_t col);
// Set a single register (e.g., a whole native row)
static void send(const uint8_t reg, const uint8_t data);
// Set all LEDs in a single row
void Max7219_Set_Row(const uint8_t row, const uint32_t val);
void Max7219_Clear_Row(const uint8_t row);
// Refresh all units
inline static void refresh() { for (uint8_t i = 0; i < 8; i++) all(i); }
// 16 and 32 bit versions of Row and Column functions
// Multiple rows and columns will be used to display the value if
// the array of matrix LED's is too narrow to accomplish the goal
void Max7219_Set_Rows_16bits(const uint8_t y, uint32_t val);
void Max7219_Set_Rows_32bits(const uint8_t y, uint32_t val);
void Max7219_Set_Columns_16bits(const uint8_t x, uint32_t val);
void Max7219_Set_Columns_32bits(const uint8_t x, uint32_t val);
// Update a single native row on all units
static void all(const uint8_t line);
// Quickly clear the whole matrix
void Max7219_Clear();
// Update a single native row on the target unit
static void one(const uint8_t line);
// Apply custom code to update the matrix
void Max7219_idle_tasks();
// Set a single LED by XY coordinate
static void led_set(const uint8_t x, const uint8_t y, const bool on);
static void led_on(const uint8_t x, const uint8_t y);
static void led_off(const uint8_t x, const uint8_t y);
static void led_toggle(const uint8_t x, const uint8_t y);
#ifndef MAX7219_ROTATE
#define MAX7219_ROTATE 0
#endif
#define _ROT ((MAX7219_ROTATE + 360) % 360)
#if _ROT == 0
#define MAX7219_UPDATE_AXIS y // Fast line update axis for this orientation of the matrix display
#define MAX7219_Y_LEDS 8
#define MAX7219_X_LEDS (MAX7219_Y_LEDS * (MAX7219_NUMBER_UNITS))
#define XOR_7219(x, y) LEDs[(x & 0xF8) + y] ^= _BV(7 - (x & 0x07))
#define SET_PIXEL_7219(x, y) LEDs[(x & 0xF8) + y] |= _BV(7 - (x & 0x07))
#define CLEAR_PIXEL_7219(x, y) LEDs[(x & 0xF8) + y] &= (_BV(7 - (x & 0x07)) ^ 0xFF)
#define BIT_7219(x, y) TEST(LEDs[(x & 0xF8) + y], 7 - (x & 0x07))
#define SEND_7219(R) do {for(int8_t jj = 0; jj < MAX7219_NUMBER_UNITS; jj++) Max7219(max7219_reg_digit0 + (R & 0x7), LEDs[(R & 0x7) + jj * 8]); Max7219_pulse_load(); } while (0);
#elif _ROT == 90
#define MAX7219_UPDATE_AXIS x // Fast line update axis for this orientation of the matrix display
#define MAX7219_X_LEDS 8
#define MAX7219_Y_LEDS (MAX7219_X_LEDS * (MAX7219_NUMBER_UNITS))
#define XOR_7219(x, y) LEDs[x + (y & 0xF8)] ^= _BV((y & 0x7))
#define SET_PIXEL_7219(x, y) LEDs[x + (y & 0xF8)] |= _BV((y & 0x7))
#define CLEAR_PIXEL_7219(x, y) LEDs[x + (y & 0xF8)] &= (_BV((y & 0x7)) ^ 0xFF)
#define BIT_7219(x, y) TEST(LEDs[x + (y & 0xF8)], (y & 0x7))
#define SEND_7219(R) do {for(int8_t jj = 0; jj < MAX7219_NUMBER_UNITS; jj++) Max7219(max7219_reg_digit0 + (R & 0x7), LEDs[(R & 0x7) + jj * 8]); Max7219_pulse_load(); } while (0);
#elif _ROT == 180
#define MAX7219_UPDATE_AXIS y // Fast line update axis for this orientation of the matrix display
#define MAX7219_Y_LEDS 8
#define MAX7219_X_LEDS (MAX7219_Y_LEDS * (MAX7219_NUMBER_UNITS))
#define XOR_7219(x, y) LEDs[x + (y & 0xF8)] ^= _BV((x & 0x07))
#define SET_PIXEL_7219(x, y) LEDs[x + (y & 0xF8)] |= _BV((x & 0x07))
#define CLEAR_PIXEL_7219(x, y) LEDs[x + (y & 0xF8)] &= (_BV((x & 0x07)) ^ 0xFF)
#define BIT_7219(x, y) TEST(LEDs[x + (y & 0xF8)], ((x & 0x07)))
#define SEND_7219(R) do {for(int8_t jj = 0; jj < MAX7219_NUMBER_UNITS; jj++) Max7219(max7219_reg_digit7 - (R & 0x7), LEDs[(R & 0x7) + jj * 8]); Max7219_pulse_load(); } while (0);
#elif _ROT == 270
#define MAX7219_UPDATE_AXIS x // Fast line update axis for this orientation of the matrix display
#define MAX7219_X_LEDS 8
#define MAX7219_Y_LEDS (MAX7219_X_LEDS * (MAX7219_NUMBER_UNITS))
#define XOR_7219(x, y) LEDs[x + (y & 0xF8)] ^= _BV(7 - (y & 0x7))
#define SET_PIXEL_7219(x, y) LEDs[x + (y & 0xF8)] |= _BV(7 - (y & 0x7))
#define CLEAR_PIXEL_7219(x, y) LEDs[x + (y & 0xF8)] &= (_BV(7 - (y & 0x7)) ^ 0xFF)
#define BIT_7219(x, y) TEST(LEDs[x + (y & 0xF8)], 7 - (y & 0x7))
#define SEND_7219(R) do {for(int8_t jj = 0; jj < MAX7219_NUMBER_UNITS; jj++) Max7219(max7219_reg_digit7 - (R & 0x7), LEDs[(R & 0x7) + jj * 8]); Max7219_pulse_load(); } while (0);
#else
#error "MAX7219_ROTATE must be a multiple of +/- 90°."
#endif
// Set all LEDs in a single column
static void set_column(const uint8_t col, const uint32_t val);
static void clear_column(const uint8_t col);
// Set all LEDs in a single row
static void set_row(const uint8_t row, const uint32_t val);
static void clear_row(const uint8_t row);
// 16 and 32 bit versions of Row and Column functions
// Multiple rows and columns will be used to display the value if
// the array of matrix LED's is too narrow to accomplish the goal
static void set_rows_16bits(const uint8_t y, uint32_t val);
static void set_rows_32bits(const uint8_t y, uint32_t val);
static void set_columns_16bits(const uint8_t x, uint32_t val);
static void set_columns_32bits(const uint8_t x, uint32_t val);
// Quickly clear the whole matrix
static void clear();
// Apply custom code to update the matrix
static void idle_tasks();
private:
static void error(const char * const func, const int32_t v1, const int32_t v2=-1);
static void noop();
static void set(const uint8_t line, const uint8_t bits);
static void send_row(const uint8_t row);
static void send_column(const uint8_t col);
static void mark16(const uint8_t y, const uint8_t v1, const uint8_t v2);
static void range16(const uint8_t y, const uint8_t ot, const uint8_t nt, const uint8_t oh, const uint8_t nh);
static void quantity16(const uint8_t y, const uint8_t ov, const uint8_t nv);
extern uint8_t LEDs[8*MAX7219_NUMBER_UNITS];
#ifdef MAX7219_INIT_TEST
#if MAX7219_INIT_TEST == 2
static void spiral(const bool on, const uint16_t del);
#else
static void sweep(const int8_t dir, const uint16_t ms, const bool on);
#endif
#endif
};
#endif // __MAX7219_DEBUG_LEDS_H__
extern Max7219 max7219;

52
Marlin/src/gcode/feature/leds/M7219.cpp
Unescape Escape View File

@ -32,7 +32,7 @@
*
* I - Initialize (clear) the matrix
* F - Fill the matrix (set all bits)
* P - Dump the LEDs[] array values
* P - Dump the led_line[] array values
* C<column> - Set a column to the 8-bit value V
* R<row> - Set a row to the 8-bit value V
* X<pos> - X position of an LED to set or toggle
@ -43,45 +43,47 @@
*/
void GcodeSuite::M7219() {
if (parser.seen('I')) {
Max7219_Clear();
Max7219_register_setup();
max7219.clear();
max7219.register_setup();
}
if (parser.seen('F'))
for (uint8_t x = 0; x < MAX7219_X_LEDS; x++)
Max7219_Set_Column(x, 0xFFFFFFFF);
max7219.set_column(x, 0xFFFFFFFF);
const uint32_t v = parser.ulongval('V');
if (parser.seenval('R')) {
const uint32_t r = parser.value_int();
Max7219_Set_Row(r, parser.ulongval('V'));
return;
const uint8_t r = parser.value_byte();
max7219.set_row(r, v);
}
else if (parser.seenval('C')) {
const uint32_t c = parser.value_int();
Max7219_Set_Column(c, parser.ulongval('V'));
return;
const uint8_t c = parser.value_byte();
max7219.set_column(c, v);
}
if (parser.seenval('X') || parser.seenval('Y')) {
else if (parser.seenval('X') || parser.seenval('Y')) {
const uint8_t x = parser.byteval('X'), y = parser.byteval('Y');
if (parser.seenval('V'))
Max7219_LED_Set(x, y, parser.boolval('V'));
max7219.led_set(x, y, parser.boolval('V'));
else
Max7219_LED_Toggle(x, y);
max7219.led_toggle(x, y);
}
else if (parser.seen('D')) {
const uint8_t r = parser.value_byte();
if (r < MAX7219_ROWS) {
max7219.led_line[r] = v;
return max7219.all(r);
}
}
if (parser.seen('P')) {
for (int8_t x = 0; x < 8 * MAX7219_NUMBER_UNITS; x++) {
SERIAL_ECHOPAIR("LEDs[", x);
SERIAL_ECHO("]=");
for (int8_t j = 7; j >= 0; j--) {
if ( LEDs[x] & (0x01<<j) )
SERIAL_ECHO("1");
else
SERIAL_ECHO("0");
}
SERIAL_EOL();
return;
for (uint8_t r = 0; r < MAX7219_ROWS; r++) {
SERIAL_ECHOPGM("led_line[");
if (r < 10) SERIAL_CHAR('_');
SERIAL_ECHO(r);
SERIAL_ECHO("]=");
for (uint8_t b = 8; b--;) SERIAL_CHAR('0' + TEST(max7219.led_line[r], b));
SERIAL_EOL();
}
}
}

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