Differences

This shows you the differences between two versions of the page.

--- reprap:anet:anet_mainboard_overclocking [2018/01/04 05:11] – gmarsh23
+++ reprap:anet:anet_mainboard_overclocking [2018/01/04 05:27] – [Table of Contents] gmarsh23
@@ Line 20: / Line 20: @@
       * pins_ANET_10.h
       * speed_lookuptable.h
-  * Compile and install new firmware
+  * Compile and install new Marlin firmware
-  * Potential issues
 ==== Introduction ====
@@ Line 90: / Line 89: @@
 ==== Updating the bootloader ====
+Once the crystal is changed, put the control board back in your printer and connect ONLY the power input to the board; leave everything else disconnected for now. Connect your ISP programmer to the board.
 === Downloading and compiling Optiboot ===
@@ Line 103: / Line 104: @@
 === Backing up existing firmware ===
-TBD
+Use AVRDUDE:
+  avrdude -p atmega1284p -c <your programmer> -U flash:r:anet10_backup.hex:hex -U eeprom:r:anet10_backup.eep:hex
 === Flashing new firmware ===
-TBD
+Use AVRDUDE:
+  avrdude -p atmega1284p -c <your programer> -U flash:w:optiboot_new.hex
+Once the board is programmed, connect the board to your PC via its USB connection, and attempt to "ping" the new bootloader with the following avrdude command. Change "COM1" to the serial port corresponding to the printer on your computer.
+  avrdude -c arduino -p m1284p -P COM1 -b 57600 -v
+If everything goes well, you should see a screen that looks like this, indicating that the bootloader is up and running.
+  avrdude: AVR device initialized and ready to accept instructions
+  Reading | ################################################## | 100% 0.01s
+  avrdude: Device signature = 0x1e9705
+  avrdude: safemode: lfuse reads as 0
+  avrdude: safemode: hfuse reads as 0
+  avrdude: safemode: efuse reads as 0
+  avrdude: safemode: lfuse reads as 0
+  avrdude: safemode: hfuse reads as 0
+  avrdude: safemode: efuse reads as 0
+  avrdude: safemode: Fuses OK (E:00, H:00, L:00)
+  avrdude done.  Thank you.
 ==== Marlin changes ====
-A number of files in Marlin have to be modified for operation at frequencies other than 16 or 20MHz.
+A number of files in Marlin have to be modified for operation at frequencies other than 16 or 20MHz. This is in addition to the changes to the Configuration.h and Configuration_adv.h files.
 === platformio.ini ===
@@ Line 178: / Line 205: @@
   #define ST7920_DELAY_3 DELAY_7_NOP
+==== Compiling and installing new firmware ====
+There are many guides online describing how to compile and install Marlin on an Anet A8. Find one and link it here :)