FreeCalypso > hg > fc-magnetite
view cdg3/sap/gmmaa.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 : gmmaa.pdf ;*** Creation : Wed Mar 11 09:58:03 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 : gmmaa ;*** Document No. : 8441.107.99.001 ;*** Document Date : 1999-06-22 ;*** Document Status: BEING_PROCESSED ;*** Document Author: ANS ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:41:58 2007" PRAGMA LAST_MODIFIED "1999-06-22" PRAGMA ID_AND_VERSION "8441.107.99.001" VALTAB VAL_aa_timer VAL DEF "value is incremented in multiples of 1 min" VAL 0 GMMAA_TIMER_2_SEC "value is incremented in multiples of 2 sec" VAL 1 GMMAA_TIMER_1_MIN "value is incremented in multiples of 1 min" VAL 2 GMMAA_TIMER_1_DH "value is incremented in multiples of 1 decihour" VAL 7 GMMAA_TIMER_DEACT "timer is deactivated" VAR aa_timer "GPRS READY timer" B VAL @p_gmmaa - VAL_aa_timer@ ; GMMAA_ESTABLISH_REQ 0x2500 ; GMMAA_RELEASE_IND 0x6500 ; GMMAA_ESTABLISH_REJ 0x6501 ; GMMAA_TIMER_REQ 0x2501 PRIM GMMAA_ESTABLISH_REQ 0x2500 { } PRIM GMMAA_RELEASE_IND 0x6500 { } PRIM GMMAA_ESTABLISH_REJ 0x6501 { } PRIM GMMAA_TIMER_REQ 0x2501 { aa_timer ; GPRS AA-READY timer }