FreeCalypso > hg > fc-magnetite
view cdg3/msg/tst.mdf @ 629:3231dd9b38c1
armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets
Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively,
and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code
for C-Sample and earlier turns them into GPIOs configured as outputs also
driving 1 - so far, so good - but TI's code for BOARD 41 (which covers
D-Sample, Leonardo and all real world Calypso devices derived from the
latter) switches them from MCUEN to GPIOs, but then leaves them as inputs.
Given that the hardware powerup state of these two pins is outputs driving 1,
every Calypso board design MUST be compatible with such driving; typically
these GPIO signals will be either unused and unconnected or connected as
outputs driving some peripheral. Turning these pins into GPIO inputs will
result in floating inputs on every reasonably-wired board, thus I am
convinced that this configuration is nothing but a bug on the part of
whoever wrote this code at TI.
This floating input bug had already been fixed earlier for GTA modem and
FCDEV3B targets; the present change makes the fix unconditional for all
"classic" targets. The newly affected targets are D-Sample, Leonardo,
Tango and GTM900.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 02 Jan 2020 05:38:26 +0000 |
parents | c15047b3d00d |
children |
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;******************************************************************************** ;*** File : tst.mdf ;*** Creation : Thu Jun 19 15:32:14 CST 2008 ;*** 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 : Air Interface Message Specification ;*** Document Name : tst ;*** Document No. : 8441.603.99.005 ;*** Document Date : 2000-10-23 ;*** Document Status: BEING_PROCESSED ;*** Document Author: ANS ;******************************************************************************** PRAGMA SRC_FILE_TIME "Wed Nov 28 10:21:30 2007" PRAGMA LAST_MODIFIED "2000-10-23" PRAGMA ID_AND_VERSION "8441.603.99.005" CONST L3MAX 251 ; maximum size of a L3 buffer CONST MAX_N_PDU_NUMBER_LIST 11 ; maximum size of N-PDU number list VALTAB VAL_no_of_pdus VAL DEF "Number of PDUs to transmit" VAL 0 TEST_INFINITIVE_NO "ciphering not used" VALTAB VAL_dl_timeslot_offset VAL 0 TEST_TN0 "downlink timeslot offsett 0" VAL 1 TEST_TN1 "downlink timeslot offsett 1" VAL 2 TEST_TN2 "downlink timeslot offsett 2" VAL 3 TEST_TN3 "downlink timeslot offsett 3" VAL 4 TEST_TN4 "downlink timeslot offsett 4" VAL 5 TEST_TN5 "downlink timeslot offsett 5" VAL 6 TEST_TN6 "downlink timeslot offsett 6" VAL 7 TEST_TN7 "downlink timeslot offsett 7" VALTAB VAL_mode_flag_val VAL 0 TEST_RANDOM "pseudorandom data" VAL 1 TEST_LOOP "loop back" VAR msg_type "Message Type" 8 VAR no_of_pdus "Number of PDUs" 12 VAL @m_tst - VAL_no_of_pdus@ VAR dl_timeslot_offset "Downlink Timeslot Offset" 3 VAL @m_tst - VAL_dl_timeslot_offset@ VAR mode_flag_val "Mode Flag Value" 1 VAL @m_tst - VAL_mode_flag_val@ COMP pdu_description "PDU Description" { .000 ; spare no_of_pdus ; Number } COMP pdu_description_ie "PDU Description IE" { CSN1_S1 pdu_description ; PDU Description } COMP mode_flag "Mode Flag" { .0000 ; spare dl_timeslot_offset ; Downlink Timeslot Offset mode_flag_val ; Mode Flag Value } MSG gprs_test_mode_cmd downlink 36 ; gprs_test_mode_cmd { GSM3_V msg_type ; Message Type GSM3_V pdu_description_ie ; PDU description GSM3_V mode_flag ; Mode Flag }