Основная программа на 256МС710 переехала на А без проблем. А вот
загрузчик пришлось допиливать в части регистров конфигурации
методом тыка, логически объяснить допиливание не получилось. А так, вот:
APPENDIX A:
MIGRATING FROM dsPIC33FJXXXMCX06/ X08/X10 DEVICES TO dsPIC33FJXXXMCX06A/ X08A/X10A DEVICES
The dsPIC33FJXXXMCX06A/X08A/X10A devices were designed to enhance the dsPIC33FJXXXMCX06/ X08/X10 families of devices. In general, the dsPIC33FJXXXMCX06A/X08A/X10A devices are backward-compatible with dsPIC33FJXXXMCX06/X08/X10 devices; however, manufacturing differences may cause dsPIC33FJXXXMCX06A/X08A/X10A devices to behave differently from dsPIC33FJXXXMCX06/X08/X10 devices. Therefore, complete system test and characterization is recommended if dsPIC33FJXXXMCX06A/X08A/X10A devices are used to replace dsPIC33FJXXXMCX06/X08/X10 devices.
The following enhancements were introduced:
• Extended temperature support of up to +125ºC
• Enhanced Flash module with higher endurance and retention
• New PLL Lock Enable Configuration bit
• Added Timer5 trigger for ADC1 and Timer3 trigger for ADC2