Updated documentation and small improvements

Libraries/Ethernet/utility/W5500.c

@@ -49,17 +49,17 @@ void W5500_Init(void)
     GPIO_ResetBits(GPIOA, GPIO_Pin_15);
     Delay_ms(40);
     GPIO_SetBits(GPIOA, GPIO_Pin_15);
-    Delay_ms(25);
+    Delay_ms(40);
 
     W5500_SoftReset();
-    Delay_ms(20);
+    Delay_ms(40);
 
     for(uint8_t i = 0; i < MAX_SOCK_NUM; i++)
     {
         uint8_t cntl_byte = (0x0C + (i<<5));
 
-        Write(0x1E, cntl_byte, 4);     //0x1E - Sn_RXBUF_SIZE
-        Write(0x1F, cntl_byte, 2);     //0x1F - Sn_TXBUF_SIZE
+        Write(0x1E, cntl_byte, 4);     //0x1E - Sn_RXBUF_SIZE - 4k
+        Write(0x1F, cntl_byte, 2);     //0x1F - Sn_TXBUF_SIZE - 2k
     }
 }
 

Libraries/Ethernet/utility/W5500.h

@@ -22,7 +22,7 @@
 #include "util2.h"
 
 
-#define MAX_SOCK_NUM 8
+#define MAX_SOCK_NUM        4   // Max 8
 
 
 #define W5500_SSIZE         2048 // Max Tx buffer size

Libraries/GrIP/ComIf.c

@@ -19,7 +19,7 @@
 #include "ServerTCP.h"
 #include "Platform.h"
 #include "Print.h"
-#include "Usart.h"
+#include "USART.h"
 #include <string.h>
 
 

Makefile

@@ -26,7 +26,7 @@ OBJDUMP		= 	${GCC_BASE}/arm-none-eabi-objdump
 #---------------------------------------------------------------------------------
 TARGET		:=	GRBL_Advanced
 BUILD       :=	build
-SOURCES		:=	./ cmsis/ grbl/ HAL/ HAL/EXTI HAL/FLASH HAL/GPIO HAL/I2C HAL/SPI HAL/STM32 HAL/TIM HAL/USART SPL/src Src/
+SOURCES		:=	./ cmsis/ grbl/ HAL/ HAL/EXTI HAL/FLASH HAL/GPIO HAL/I2C HAL/SPI HAL/STM32 HAL/TIM HAL/USART SPL/src Src/ Libraries/GrIP Libraries/CRC Libraries/Ethernet Libraries/Ethernet/utility
 
 INCLUDES    :=	$(SOURCES) SPL/inc
 

README.md

@@ -37,6 +37,11 @@ Uses Dynamic TLO when $14=2
 Added support for external EEPROM (e.g. ST M24C08). Uncomment 'USE_EXT_EEPROM' in Config.h.
 ![EEPROM](https://github.com/Schildkroet/GRBL-Advanced/blob/software/eeprom.png?raw=true)
 
+#### ETHERNET Support
+GRBL-Advanced can be controlled with USB or ETHERNET. For ETHERNET an additional W5500 Module is required. Then uncomment ETH_IF in Platform.h. The default IP Address is 192.168.1.20.
+Use [Candle 2](https://github.com/Schildkroet/Candle2) as control interface.
+![W5500](https://github.com/Schildkroet/GRBL-Advanced/blob/software/w5500.png?raw=true)
+
 #### Attention
 By default, settings are stored in internal flash memory in last sector. First startup takes about 5-10sec to write all settings.
 
@@ -79,6 +84,7 @@ List of Supported G-Codes in Grbl-Advanced:
   - Feed Rate Modes: G93, G94
   - Unit Modes: G20, G21
   - Distance Modes: G90, G91
+  - Retract Modes: G98, G99
   - Arc IJK Distance Modes: G91.1
   - Plane Select Modes: G17, G18, G19
   - Tool Length Offset Modes: G43.1, G49

grbl/ToolChange.c

@@ -32,6 +32,7 @@
 static uint8_t isFirstTC = 1;
 static int32_t toolOffset = 0;
 static int32_t toolReferenz = 0;
+static float tc_pos[N_AXIS] = {0};
 
 
 void TC_Init(void)
@@ -40,6 +41,8 @@ void TC_Init(void)
     toolOffset = 0;
     toolReferenz = 0;
 
+    memset(tc_pos, 0, sizeof(float)*N_AXIS);
+
     gc_state.modal.tool_length = TOOL_LENGTH_OFFSET_CANCEL;
 	gc_state.tool_length_offset = 0.0;
 }
@@ -62,6 +65,7 @@ void TC_ChangeCurrentTool(void)
     // Don't move XY. Go to Z 0
 	System_ConvertArraySteps2Mpos(position, sys_position);
 	position[Z_AXIS] = 0.0;
+	memcpy(tc_pos, position, sizeof(float)*N_AXIS);
 
     //System_SetExecStateFlag(EXEC_TOOL_CHANGE);
 
@@ -72,7 +76,7 @@ void TC_ChangeCurrentTool(void)
     pl_data.line_number = gc_state.line_number;
 
 	MC_Line(position, &pl_data);
-	Delay_ms(5);
+	Delay_ms(20);
 
 	Spindle_Stop();
 
@@ -176,6 +180,9 @@ void TC_ProbeTLS(void)
 
     MC_Line(position, &pl_data);
 
+    // Move back to initial tc position
+    MC_Line(tc_pos, &pl_data);
+
     // Wait until queue is processed
     Protocol_BufferSynchronize();