FreeCalypso > hg > fc-magnetite
view cdg3/sap/app.pdf @ 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 | c15047b3d00d |
children |
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;******************************************************************************** ;*** File : app.pdf ;*** Creation : Wed Mar 11 09:58:43 CST 2009 ;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1 ;*** Copyright : (c) Texas Instruments AG, Berlin Germany 2002 ;******************************************************************************** ;*** Document Type : Service Access Point Specification ;*** Document Name : app ;*** Document No. : NA.NA.00.2005 ;*** Document Date : 2005-05-12 ;*** Document Status: BEING_PROCESSED ;*** Document Author: Liyi ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:30:08 2007" PRAGMA LAST_MODIFIED "2005-05-12" PRAGMA ID_AND_VERSION "NA.NA.00.2005" VAR test_rslt "test result" B VAR additional_info "additional info" L ; APP_BAT_TEST_RSLT 0x8000401E PRIM APP_BAT_TEST_RSLT 0x8000401E { test_rslt ; Primitive Item additional_info ; Primitive Item }