====== Maiana ======

[[https://github.com/peterantypas/maiana|MAIANA]]

===== NMEA2000 Adapter =====

It looks like it implements parsing of some received binary message types.

[[https://github.com/peterantypas/maiana/blob/964de69df07e6454a91e5bbc8ebb3808d32f69e9/latest/Firmware/NMEA2000Adapter/ais/ais6.cpp]]

===== Flash =====

According to bootloader README:

0x08000000 - Custom bootloader. (Normally application code starts here.)
0x08004000 - Bootloader maintained metadata: image size and checksum.
0x08004800 - Application. Must be linked to go here.

It seems to be changed for the L412 because 64k Flash.

According to .ld files and bootloader config:

0x08002000 - Application
0x08001800 - Metadata.

===== Bootloader =====

Maiana has a custom bootloader, installed in addition to the STM32's usual ROM bootloader.
 
Toggle TX switch twice on power up to enter.

==== MCUs ====

Boards have been produced with various chips in the STM32L4 series.

=== STM32L412 ===

64kB Flash.
40kB RAM.

===== Boot messages =====

$PAISYS,11.9.1,4.4.1,,STM32L412,1,1*08                                          
$PAISTN,0,,,0,0,0,0,0*11                                                        
$PAITXCFG,1,1,1,0,0*0B                                                          
$PMTK011,MTKGPS*08                                                              
$PMTK010,001*2E                                                                 
$PMTK011,MTKGPS*08                                                              
$PMTK010,002*2D                                                                 


"$PAISYS,%s,%s,%s,%s,%s,%d*", hwRev(), FW_REV, serNum(), mcuType(),
      breakoutType(), isBootloaderPresent())