Add 6 MHz clock

MCUdude · Oct 11, 2023 · 33718ca · 33718ca
1 parent 7a3ff44
commit 33718ca
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Showing 3 changed files with 45 additions and 1 deletion.
diff --git a/PlatformIO.md b/PlatformIO.md
@@ -256,6 +256,7 @@ Recommended baud rate for the particular clock speed is in **bold text**.
 | `11059200L` | | | X | | X | X | **X** | X | X | X |
 | `8000000L` | X | X | | X | | X | X | **X** | X | X |
 | `7372800L` | | | X | | X | **X** | X | X | X | X |
+| `6000000L` | | | | X | | | **X** | X | X | X |
 | `4000000L` | | X | | | | | | | X | **X** |
 | `3686400L` | | | X | | X | **X** | X | X | X | X |
 | `2000000L` | | | | X | | | | | X | **X** |

diff --git a/README.md b/README.md
@@ -75,10 +75,11 @@ Make sure you connect an ISP programmer, and select the correct one in the "Prog
 | 20 MHz | External crystal/oscillator | 115200 | |
 | 18.4320 MHz | External crystal/oscillator | 115200 | Great clock for UART communication with no error |
 | 14.7456 MHz | External crystal/oscillator | 115200 | Great clock for UART communication with no error |
-| 12 MHz | External crystal/oscillator | 57600 | Useful when working with USB 1.1 (12 Mbit/s) |
+| 12 MHz | External crystal/oscillator | 57600 |   |
 | 11.0592 MHz | External crystal/oscillator | 115200 | Great clock for UART communication with no error |
 | 8 MHz | External crystal/oscillator | 57600 | Common clock when working with 3.3V |
 | 7.3728 MHz | External crystal/oscillator | 115200 | Great clock for UART communication with no error |
+| 6 MHz | External crystal/oscillator | 57600 | |
 | 4 MHz | External crystal/oscillator | 9600 | |
 | 3.6864 MHz | External crystal/oscillator | 115200 | Great clock for UART communication with no error |
 | 2 MHz | External crystal/oscillator | 9600 | |

diff --git a/avr/boards.txt b/avr/boards.txt
@@ -147,6 +147,12 @@ menu.bootloader=Bootloader
 1284.menu.clock.7_3728MHz_external.build.clkpr=
 1284.menu.clock.7_3728MHz_external.build.f_cpu=7372800L
 
+1284.menu.clock.6MHz_external=External 6 MHz
+1284.menu.clock.6MHz_external.upload.speed=57600
+1284.menu.clock.6MHz_external.bootloader.low_fuses=0xf7
+1284.menu.clock.6MHz_external.build.clkpr=
+1284.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 1284.menu.clock.4MHz_external=External 4 MHz
 1284.menu.clock.4MHz_external.upload.speed=9600
 1284.menu.clock.4MHz_external.bootloader.low_fuses=0xf7
@@ -333,6 +339,12 @@ menu.bootloader=Bootloader
 644.menu.clock.7_3728MHz_external.build.clkpr=
 644.menu.clock.7_3728MHz_external.build.f_cpu=7372800L
 
+644.menu.clock.6MHz_external=External 6 MHz
+644.menu.clock.6MHz_external.upload.speed=57600
+644.menu.clock.6MHz_external.bootloader.low_fuses=0xf7
+644.menu.clock.6MHz_external.build.clkpr=
+644.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 644.menu.clock.4MHz_external=External 4 MHz
 644.menu.clock.4MHz_external.upload.speed=9600
 644.menu.clock.4MHz_external.bootloader.low_fuses=0xf7
@@ -538,6 +550,12 @@ menu.bootloader=Bootloader
 324.menu.clock.7_3728MHz_external.build.clkpr=
 324.menu.clock.7_3728MHz_external.build.f_cpu=7372800L
 
+324.menu.clock.6MHz_external=External 6 MHz
+324.menu.clock.6MHz_external.upload.speed=57600
+324.menu.clock.6MHz_external.bootloader.low_fuses=0xf7
+324.menu.clock.6MHz_external.build.clkpr=
+324.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 324.menu.clock.4MHz_external=External 4 MHz
 324.menu.clock.4MHz_external.upload.speed=9600
 324.menu.clock.4MHz_external.bootloader.low_fuses=0b1111{bootloader.cksel_bits}
@@ -718,6 +736,12 @@ menu.bootloader=Bootloader
 164.menu.clock.8MHz_external.build.clkpr=
 164.menu.clock.8MHz_external.build.f_cpu=8000000L
 
+164.menu.clock.6MHz_external=External 6 MHz
+164.menu.clock.6MHz_external.upload.speed=57600
+164.menu.clock.6MHz_external.bootloader.low_fuses=0xf7
+164.menu.clock.6MHz_external.build.clkpr=
+164.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 164.menu.clock.7_3728MHz_external=External 7.3728 MHz
 164.menu.clock.7_3728MHz_external.upload.speed=115200
 164.menu.clock.7_3728MHz_external.bootloader.low_fuses=0xf7
@@ -897,6 +921,12 @@ menu.bootloader=Bootloader
 32.menu.clock.7_3728MHz_external.bootloader.ckopt_bit=0
 32.menu.clock.7_3728MHz_external.build.f_cpu=7372800L
 
+32.menu.clock.6MHz_external=External 6 MHz
+32.menu.clock.6MHz_external.upload.speed=57600
+32.menu.clock.6MHz_external.bootloader.sut_cksel_bits=111111
+32.menu.clock.6MHz_external.bootloader.ckopt_bit=0
+32.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 32.menu.clock.4MHz_external=External 4 MHz
 32.menu.clock.4MHz_external.upload.speed=9600
 32.menu.clock.4MHz_external.bootloader.sut_cksel_bits=111111
@@ -1070,6 +1100,12 @@ menu.bootloader=Bootloader
 16.menu.clock.7_3728MHz_external.bootloader.ckopt_bit=0
 16.menu.clock.7_3728MHz_external.build.f_cpu=7372800L
 
+16.menu.clock.6MHz_external=External 6 MHz
+16.menu.clock.6MHz_external.upload.speed=57600
+16.menu.clock.6MHz_external.bootloader.sut_cksel_bits=111111
+16.menu.clock.6MHz_external.bootloader.ckopt_bit=0
+16.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 16.menu.clock.4MHz_external=External 4 MHz
 16.menu.clock.4MHz_external.upload.speed=9600
 16.menu.clock.4MHz_external.bootloader.sut_cksel_bits=111111
@@ -1243,6 +1279,12 @@ menu.bootloader=Bootloader
 8535.menu.clock.7_3728MHz_external.bootloader.ckopt_bit=0
 8535.menu.clock.7_3728MHz_external.build.f_cpu=7372800L
 
+8535.menu.clock.6MHz_external=External 6 MHz
+8535.menu.clock.6MHz_external.upload.speed=57600
+8535.menu.clock.6MHz_external.bootloader.sut_cksel_bits=111111
+8535.menu.clock.6MHz_external.bootloader.ckopt_bit=0
+8535.menu.clock.6MHz_external.build.f_cpu=6000000L
+
 8535.menu.clock.4MHz_external=External 4 MHz
 8535.menu.clock.4MHz_external.upload.speed=9600
 8535.menu.clock.4MHz_external.bootloader.sut_cksel_bits=111111