3d_print_resources/Marlin
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Tiny improvement to M7219

Browse source 
The registers within the Max7219 can get corrupted a number of ways.  This allows the Max7219 to be reset and fully initialized.
And...  it also allows the user to see the initialization pattern.
This commit is contained in:
Roxy-3D 2018-06-19 14:39:40 -05:00 • committed by Scott Lahteine
parent 888d319145
commit 7d491aa015
5 changed files with 22 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

24
Marlin/Max7219_Debug_LEDs.cpp
View file

@ -48,7 +48,7 @@
#include "Marlin.h"
#include "delay.h"
uint8_t LEDs[8*MAX7219_NUMBER_UNITS] = { 0 };
uint8_t LEDs[8 * MAX7219_NUMBER_UNITS] = { 0 };
// Delay for 0.1875µs (16MHz AVR) or 0.15µs (20MHz AVR)
#define SIG_DELAY() DELAY_NS(188)
@ -191,7 +191,7 @@ inline void _Max7219_Set_Digit_Segments(const uint8_t digit, const uint8_t val)
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);
uint32_t mask = 0x0000001;
for(uint8_t x = 0; x < MAX7219_X_LEDS; x++) {
for (uint8_t x = 0; x < MAX7219_X_LEDS; x++) {
if (val & mask)
SET_PIXEL_7219(MAX7219_X_LEDS-1-x, row);
else
@ -199,7 +199,7 @@ void Max7219_Set_Row(const uint8_t row, const uint32_t val) {
mask <<= 1;
}
#if _ROT == 90 || _ROT == 270
for(uint8_t x = 0; x < 8; x++)
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
@ -225,7 +225,7 @@ void Max7219_Clear_Row(const uint8_t row) {
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);
uint32_t mask = 0x0000001;
for(uint8_t y = 0; y < MAX7219_Y_LEDS; y++) {
for (uint8_t y = 0; y < MAX7219_Y_LEDS; y++) {
if (val & mask)
SET_PIXEL_7219(col, MAX7219_Y_LEDS-1-y);
else
@ -235,7 +235,7 @@ void Max7219_Set_Column(const uint8_t col, const uint32_t val) {
#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++)
for (uint8_t yy = 0; yy < 8; yy++)
SEND_7219(yy); // force all columns out to the Max7219 chips and strobe them
#endif
return;
@ -244,13 +244,13 @@ void Max7219_Set_Column(const uint8_t col, const uint32_t val) {
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++)
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++)
for (uint8_t y = 0; y < 8; y++)
SEND_7219(y); // force all columns out to the Max7219 chips and strobe them
#endif
return;
@ -322,22 +322,22 @@ void Max7219_Set_Columns_32bits(const uint8_t x, uint32_t val) {
void Max7219_register_setup() {
// Initialize the Max7219
for(int i=0; i < MAX7219_NUMBER_UNITS; i++)
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
for(int i=0; i < MAX7219_NUMBER_UNITS; i++)
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
for(int i=0; i < MAX7219_NUMBER_UNITS; i++)
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
for(int i=0; i < MAX7219_NUMBER_UNITS; i++)
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
for(int i=0; i < MAX7219_NUMBER_UNITS; i++)
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