FreeCalypso > hg > fc-magnetite
view src/gpf2/osl/os_mis_ir.c @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Jun 2020 03:17:43 +0000 |
parents | 2d1e5ad1d54f |
children |
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/* * This C module is a reconstruction based on the disassembly of * os_mis.obj in frame_na7_db_ir.lib from the Leonardo package. */ /* subset of included headers from COFF symtab: */ #include "nucleus.h" #include "typedefs.h" #include "os.h" #include "gdi.h" #include "os_types.h" #include "os_glob.h" extern unsigned os_tick_to_time_multiplier; GLOBAL LONG os_GetTime(OS_HANDLE Caller, OS_TIME *Time) { UNSIGNED Value; Value = NU_Retrieve_Clock(); *Time = SYSTEM_TICKS_TO_TIME(Value); return(OS_OK); }