G4WIM PA controller - Revision history

M0JUR: More details on firmware building and flashing based in private correspondence with G4WIM

2022-11-18T11:01:12Z

More details on firmware building and flashing based in private correspondence with G4WIM

M0JUR: Elaborate on fuse settings, including a link to an AVR fuse calculator. And since fuse settings can vary between microcontroller models, make it clear the Nano v3 has an ATmega328P on board

2022-04-27T22:19:48Z

Elaborate on fuse settings, including a link to an AVR fuse calculator. And since fuse settings can vary between microcontroller models, make it clear the Nano v3 has an ATmega328P on board

M0JUR: It's ARDUINO Nano, not Atmel Nano. Moreover, since the compiler flags indicate the Nano firmware is built for ATmega328P as well make it clear that version 3 of the Nano is required - older versions used an ATmega168

2022-04-27T22:01:20Z

It's ARDUINO Nano, not Atmel Nano. Moreover, since the compiler flags indicate the Nano firmware is built for ATmega328P as well make it clear that version 3 of the Nano is required - older versions used an ATmega168

M0JUR: Clarify that the standalone controller is a 328P (that's what the compiler flags in the source archive say) rather than a plain 328

2022-04-27T21:54:03Z

Clarify that the standalone controller is a 328P (that's what the compiler flags in the source archive say) rather than a plain 328

M0JUR: The firmware section probably shouldn't have been part of "Documentation", fixed. Also, make it clear the archive contains pre-built firmware blobs

2022-04-27T21:46:55Z

The firmware section probably shouldn't have been part of "Documentation", fixed. Also, make it clear the archive contains pre-built firmware blobs

G8GTZ: /* Documentation */

2019-10-18T19:08:56Z

Documentation

G8GTZ: /* Documentation */

2019-10-18T18:43:05Z

Documentation

G8GTZ: /* Documentation */

2019-10-18T18:42:42Z

Documentation

G4WIM at 19:23, 4 October 2019

2019-10-04T19:23:33Z

G4WIM at 19:22, 4 October 2019

2019-10-04T19:22:21Z

@@ Line 85: / Line 85: @@
 IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Nano.  The code for the standalone ATmega328P has also been changed to match.
-When programming the hex files make sure the "divide clock frequency by 8" fuse is unchecked and that the fuses specifying the clock source select an external 8-16 MHz crystal. All these fuses should already be set correctly on the Nano because it comes with its own 16-MHz crystal but will likely have to be adjusted on the standalone ATmega328P (the factory settings are different). When in doubt consult an AVR fuse calculator such as this one: https://www.engbedded.com/fusecalc/
+Any chips supplied by the BATC shop will have the correct code installed for both the ATmega and the Nano.
-If building your own code from source using Atmel Studio V7.0 set optimisation to -OS  (optimise for size).
+=== Flashing ===
-Any chips supplied by the BATC shop will have the correct code installed for both the ATmega and the Nano - you cannot mix and match Arduino code with the ATmega C code.
+Any ordinary AVR programmer + appropriate software should work here. If you do not use a GUI for this, look into ''avrdude'' - it is Free Software, supports quite a wide range of programmers, and there are many tutorials and examples available on the Web should the bundled documentation prove insufficient.

@@ Line 79: / Line 79: @@
 ==Microcontroller Firmware==
-Source code + pre-built firmware files (in respective subdirectories): [[:File:BATC_PA_Controller_Firmware_V2.zip]]
+Source code + pre-built hex files (in respective subdirectories): [[:File:BATC_PA_Controller_Firmware_V2.zip]]
-The controller logic is driven by a standalone ATmega328P, whereas the the radio link uses an nRF905 + Arduino Nano v3.
+The controller logic is driven by a standalone ATmega328P, whereas the the radio link uses an nRF905 + Arduino Nano v3 (which has its own ATmega328P).
 The Arduino Nano code is based on this solution  http://blog.zakkemble.net/nrf905-avrarduino-librarydriver/comment-page-1/
-IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Nano v3.  The code for the standalone ATmega328P has also been changed to match.
+IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Nano.  The code for the standalone ATmega328P has also been changed to match.
 Using Zak Kemble's code in the Arduino environment might work - but it is better to use his C code version with my modifications as documented and provided in the above source code link.
-When programming the hex files make sure the fuse /8 is unchecked and that fuse for external 8MHz xtal is selected as the clock source.
+When programming the hex files make sure the "divide clock frequency by 8" fuse is unchecked and that the fuses specifying the clock source select an external 8-16 MHz crystal. All these fuses should already be set correctly on the Nano because it comes with its own 16-MHz crystal but will likely have to be adjusted on the standalone ATmega328P (the factory settings are different). When in doubt consult an AVR fuse calculator such as this one: https://www.engbedded.com/fusecalc/
 If building your own code from source using Atmel Studio V7.0 set optimisation to -OS  (optimise for size).
-Any chips supplied by the BATC shop will have the correct code installed for both the ATmega and the Nano v3 - you cannot mix and match Arduino code with the ATmega C code.
+Any chips supplied by the BATC shop will have the correct code installed for both the ATmega and the Nano - you cannot mix and match Arduino code with the ATmega C code.

@@ Line 81: / Line 81: @@
 Source code + pre-built firmware files (in respective subdirectories): [[:File:BATC_PA_Controller_Firmware_V2.zip]]
-The controller logic is driven by a standalone ATmega328P, whereas the the radio link uses an nRF905 + Atmel nano.
+The controller logic is driven by a standalone ATmega328P, whereas the the radio link uses an nRF905 + Arduino Nano v3.
-The Atmel nano code is based on this solution  http://blog.zakkemble.net/nrf905-avrarduino-librarydriver/comment-page-1/
+The Arduino Nano code is based on this solution  http://blog.zakkemble.net/nrf905-avrarduino-librarydriver/comment-page-1/
-IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Atmel Nano.  The code for the ATmega328P has also been changed to match.
+IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Nano v3.  The code for the standalone ATmega328P has also been changed to match.
-Using Zak Kemble code in the Arduino environment might work - but it is better to use his C code version with my modifications as documented and provided in the above source code link.
+Using Zak Kemble's code in the Arduino environment might work - but it is better to use his C code version with my modifications as documented and provided in the above source code link.
 When programming the hex files make sure the fuse /8 is unchecked and that fuse for external 8MHz xtal is selected as the clock source.
 If building your own code from source using Atmel Studio V7.0 set optimisation to -OS  (optimise for size).
-Any chips supplied by the BATC shop will have the correct code installed for both the ATmega and Nano - you cannot mix and match Arduino code with the ATmega C code.
+Any chips supplied by the BATC shop will have the correct code installed for both the ATmega and the Nano v3 - you cannot mix and match Arduino code with the ATmega C code.

@@ Line 81: / Line 81: @@
 Source code + pre-built firmware files (in respective subdirectories): [[:File:BATC_PA_Controller_Firmware_V2.zip]]
-The radio link uses an nRF905 + Atmel nano combined with some custom code in an ATmega 328.
+The controller logic is driven by a standalone ATmega328P, whereas the the radio link uses an nRF905 + Atmel nano.
 The Atmel nano code is based on this solution  http://blog.zakkemble.net/nrf905-avrarduino-librarydriver/comment-page-1/
-IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Atmel Nano.  The code for the ATmega328 has also been changed to match.
+IMPORTANT - after building several of these links it became apparent that the timings required for the nRF905 are not the same for all modules.  To fix this issue I've created a new improved version of Zak's C code for the Atmel Nano.  The code for the ATmega328P has also been changed to match.
 Using Zak Kemble code in the Arduino environment might work - but it is better to use his C code version with my modifications as documented and provided in the above source code link.

@@ Line 77: / Line 77: @@
 *[[:File:PA CONTROL WIRING LDMOS MAST.pdf]]
-Source code
+==Microcontroller Firmware==
-[[:File:BATC_PA_Controller_Firmware_V2.zip]]
+Source code + pre-built firmware files (in respective subdirectories): [[:File:BATC_PA_Controller_Firmware_V2.zip]]
 The radio link uses an nRF905 + Atmel nano combined with some custom code in an ATmega 328.

@@ Line 57: / Line 57: @@
 Schematics
-*[[:File:G4WIM PA CNTR V1-0 Sch Sht 1.pdf]]
+*[[:File:G4WIM PA CONTROLLER V2-0 SHT 1 (1).pdf]]
-*[[:File:G4WIM PA CNTR V1-0 Sch Sht 2.pdf]]
+*[[:File:G4WIM PA CONTROLLER V2-0 SHT 2 (1).pdf]]
-*[[:File:G4WIM PA CNTR V1-0 Sch Sht 3.pdf]]
+*[[:File:G4WIM PA CONTROLLER V2-0 SHT 3 (1).pdf]]
 *[[:File:PA CONTROL WIRING SHACK DISPLAY.pdf]]