Differences

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--- arduino:atmega328p_arduinos_and_custom_fuse_settings [2020/01/04 02:36] – [Burn the bootloader and test] mithat
+++ arduino:atmega328p_arduinos_and_custom_fuse_settings [2020/01/04 02:44] – [Upload with programmer and test] mithat
@@ Line 224: / Line 224: @@
 ==== Burn the bootloader and test ====
-Whether you plan to upload your sketches with a USB to serial converter (i.e., using the bootloader) or directly by using a programmer, you still need to burn the bootloader to set the fuses. So let's burn and test the bootloader.
+Whether you plan to upload your sketches with a USB to serial converter (i.e., using the bootloader) or directly [[arduino:arduino_without_a_bootloader|using a programmer]], you still need to burn the bootloader to set the fuses. So let's burn and test it.
 === Burn it ===
@@ Line 248: / Line 248: @@
 <WRAP center round important 60%>
-If you reduce the BOD threshold or turn off BOD entirely, don't run programs uploaded by the bootloader at low voltages. See [[arduino:arduino_without_a_bootloader#cursed_is_the_bootloader|this]] for an explanation why.
+If you reduce the BOD threshold or turn off BOD entirely, don't run programs uploaded by the bootloader at low voltages. To run a sketch at low voltage you should upload your sketch directly using a programmer. See [[arduino:arduino_without_a_bootloader#cursed_is_the_bootloader|this]] for an explanation why.
 </WRAP>
-To run a sketch at low voltage you should upload your sketch directly using a programmer.
 ==== Upload with programmer and test ====
-After burning the bootloader to set the fuses, hook up your programmer. Be sure you have set both the board and programmer to the correct values under //Tools//. Then upload your simple test sketch with //Sketch > Upload Using Programmer//. Your sketch should upload and start running (possibly only after you have disconnected the programmer)(possibly only after you have disconnected the programmer).
+After burning the bootloader to set the fuses, [[https://mithatkonar.com/wiki/doku.php/arduino/arduino_without_a_bootloader#case_3pro_mini_33v8mhz_with_usbtinyisp|hook up your programmer]]. Be sure you have set both the board and programmer to the correct values under //Tools//. Then upload your simple test sketch with //Sketch > Upload Using Programmer//. Your sketch should upload and start running (possibly only after you have disconnected the programmer).
 Follow the instructions above to read the fuse settings. You should see:
@@ Line 269: / Line 268: @@
 </code>
-The extended fuse should still be ''0xFE''.
+Confirm that the extended fuse is still ''0xFE''.
-You can now connect the Pro Mini to a variable supply to see whether it works as expected below 2.7V. It may not work all the way down to 1.8V though, but because you're not using a bootloader, the chances of corrupting program memory are very low.
+You can now connect the Pro Mini to a variable supply to see whether it works as expected below 2.7V. It may not work all the way down to 1.8V though, but because you're not using a bootloader, you won't run the risk of corrupting your program memory.