reprap:anet:anet_mainboard_overclocking

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reprap:anet:anet_mainboard_overclocking [2018/01/09 04:05] – [Updating the bootloader] gmarsh23reprap:anet:anet_mainboard_overclocking [2018/12/02 02:27] (current) – external edit 127.0.0.1
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 === Choosing a new crystal === === Choosing a new crystal ===
  
-The Anet V1.0 board requires a "HC-49S" surface mount crystal. Choose one with an 18 to 22pF load capacitance, as this best matches the load capacitance provided on the Anet board.+The Anet V1.0 board requires a "HC-49S" surface mount crystal. Choose one with a 12pf load capacitance, as this best matches the load capacitance provided on the Anet board.
  
 Here are some suitable crystal frequencies to choose from: Here are some suitable crystal frequencies to choose from:
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 | 27MHz | +68.8% | +35% | May be unstable.\\ significant baud rate error (see below)\\ Can be salvaged from video equipment (DVD players, etc) | | 27MHz | +68.8% | +35% | May be unstable.\\ significant baud rate error (see below)\\ Can be salvaged from video equipment (DVD players, etc) |
  
-If you're using the USB interface of the printer, using Octoprint for example, the crystal you choose affects how accurate the baud rate of the Mega1284P's UART will be at a given baud rate. For reliability reasons this should not exceed +-5%; ideally this value is less than +-2.5%. If you only printing from the SD card, this isn't an issue.+Note: If you're using the USB interface of the printer, using Octoprint for example, the crystal you choose affects how accurate the baud rate of the Mega1284P's UART will be at a given baud rate. For reliability reasons this should not exceed +-5%; ideally this value is less than +-2.5%. If you don't plan on using the printer's USB connection, this isn't an issue.
  
 ^ Crystal freq (below), baud (right) ^ 115200 ^ 230400 ^ 250000 ^ 460800 ^ 500000 ^ 921600 ^ 1000000 ^ 1500000 ^ ^ Crystal freq (below), baud (right) ^ 115200 ^ 230400 ^ 250000 ^ 460800 ^ 500000 ^ 921600 ^ 1000000 ^ 1500000 ^
  • reprap/anet/anet_mainboard_overclocking.txt
  • Last modified: 2018/12/02 02:27
  • by 127.0.0.1