Programs MCU MB90 family with main clock 3..5 MHz

  • MB90F387 /S
  • MB90F423 GA/GC
  • MB90F428 GA/GC
  • MB90F438 L/LS
  • MB90F439 /S
  • MB90F455 /S
  • MB90F456 /S
  • MB90F457 /S
  • MB90F497 /G
  • MB90F498 G
  • MB90F543 /G/GS
  • MB90F546 G/GS
  • MB90F548 G/GS
  • MB90F549 /G/GS
  • MB90F562 /B
  • MB90F568
  • MB90F591 A/G
  • MB90F594 A/G
  • MB90F598 /G
  • MB90F897 /S

Configure section for this MCU in chipdef.ini have not string Baud2

Use manual set baudrate - /iX_baud

X_baud = X_Clock * Baud_for_4MHz / Clock_4MHz

X_baud - baudrate for main clock X_Clock

Sample:

X_Clock, MHz Set Baud
3.000 /i3600
3.500 /I4267
3.686 /I4430 [1]
4.900 /i5760
[1]3.686 MHz * 4800 b/s / 4.000 MHz ~= 4430 b/s