This is under linux, using arm-linux-elf compiler with the clock interrupt, it can be directly in the bare-metal 44b0 running directly under linux compiled with the interruption of the operating system to provide a reference arm

arm44b0_rtc_ticket
..................\inc
..................\...\44b.h
..................\...\44b.h~
..................\...\44blcd.h
..................\...\44blib.h
..................\...\44blib.h~
..................\...\cache.h
..................\...\clock.h
..................\...\clock.h~
..................\...\def.h
..................\...\Dma.h
..................\...\Etc.h
..................\...\ethernet.h
..................\...\extdma.h
..................\...\f29lv160.h
..................\...\flash.h
..................\...\hz.h
..................\...\hz1.h
..................\...\idle.h
..................\...\iic.h
..................\...\Iis.h
..................\...\kb.h
..................\...\lcdlib.h
..................\...\lcdlib.h~
..................\...\memcfg.a
..................\...\Option.a
..................\...\option.h
..................\...\option.h~
..................\...\plm.h
..................\...\plmm.h
..................\...\plmm1.h
..................\...\plmm2.h
..................\...\Power.h
..................\...\rtc.h
..................\...\smc91113.h
..................\...\stop.h
..................\...\timer.h
..................\...\tp.h
..................\...\Uart.h
..................\...\uda1341.h
..................\...\usb.h
..................\...\util.h
..................\rtc_ticket
..................\..........\44binit.o
..................\..........\44binit.s
..................\..........\44binit.s~
..................\..........\44blcd.c~
..................\..........\44blib.c
..................\..........\44blib.c~
..................\..........\44blib.o
..................\..........\44btest.c
..................\..........\44btest.c~
..................\..........\44btest.o
..................\..........\ldscript_ram.ld~
..................\..........\Makefile
..................\..........\Makefile~
..................\..........\rtc_ticket
..................\..........\rtc_ticket.ld
..................\..........\util.c
..................\..........\util.o

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