FreeCalypso > hg > fc-magnetite
view cdg3/sap/ip.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 : ip.pdf ;*** Creation : Wed Mar 11 09:58:12 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 : ip ;*** Document No. : 8444.101.00.006 ;*** Document Date : 2003-08-30 ;*** Document Status: BEING_PROCESSED ;*** Document Author: Jacek ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:43:40 2007" PRAGMA LAST_MODIFIED "2003-08-30" PRAGMA ID_AND_VERSION "8444.101.00.006" VALTAB VAL_err VAL 0 IP_ADDR_NOERROR "no error" VAL 1 IP_ADDR_NOROUTE "no route to destination" VALTAB VAL_trans_prot VAL 6 TCP_PROTOCOL "TCP protocol" VAL 17 UDP_PROTOCOL "UDP protocol" VAL 16 RAW_PROTOCOL "Chaos" VAR dst_addr "destination address" L VAR src_addr "source address" L VAR err "error code" B VAL @p_ip - VAL_err@ VAR trans_prot "transport protocol" B VAL @p_ip - VAL_trans_prot@ ; IP_ADDR_REQ 0x3900 ; IP_ADDR_CNF 0x7900 PRIM IP_ADDR_REQ 0x3900 { dst_addr ; destination address trans_prot ; transport protocol } PRIM IP_ADDR_CNF 0x7900 { src_addr ; source address err ; error code trans_prot ; transport protocol }