FreeCalypso > hg > fc-magnetite
view cdg3/sap/ph.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 : ph.pdf ;*** Creation : Wed Mar 11 09:58:34 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 : ph ;*** Document No. : 6147.112.01.100 ;*** Document Date : 2001-10-26 ;*** Document Status: APPROVED ;*** Document Author: SBK ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:50:28 2007" PRAGMA LAST_MODIFIED "2001-10-26" PRAGMA ID_AND_VERSION "6147.112.01.100" CONST DUMMY_PH 0 ; Dummy, not used, needed to satisfy tool chain which requires at least one constant definition in a SAP VALTAB VAL_ch_type VAL 0 CH_TYPE_SACCH "SACCH" VAL 1 CH_TYPE_SDCCH "SDCCH" VAL 2 CH_TYPE_FACCH "FACCH Full Rate" VAL 3 "reserved" VAL 4 "reserved" VAL 5 "reserved" VAL 6 "reserved" VAL 7 CH_TYPE_FACCH_HR "FACCH Half Rate" VAR l2_channel "Layer 2 channel-type" B VAL @p_mphc - VAL_l2_channel@ VAR l_buf "length of content in bit" S VAR o_buf "offset of content in bit" S VAR buf "buffer content; the actual size of buf is determined and allocated at run-time and not restricted to 1;" B VAR dummy "dummy not used" B COMP sdu "message unit" { l_buf ; length of content in bit o_buf ; offset of content in bit buf [1] ; buffer content; the actual size of buf is determined and allocated at run-time and not restricted to 1; } ; PH_READY_TO_SEND 0x4100 ; PH_DATA_REQ 0x0100 ; PH_TRACE_IND 0x4102 PRIM PH_READY_TO_SEND 0x4100 { l2_channel AS ch_type ; channel type } PRIM PH_DATA_REQ 0x0100 { l2_channel AS ch_type ; channel type dummy ; dummy not used; reserved sdu ; message unit } PRIM PH_TRACE_IND 0x4102 { dummy ; dummy not used; not used }