FreeCalypso > hg > fc-magnetite
view cdg3/sap/mnlc.pdf @ 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 : mnlc.pdf ;*** Creation : Wed Mar 11 09:58:25 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 : mnlc ;*** Document No. : 8443.104.02.003 ;*** Document Date : 2002-10-25 ;*** Document Status: SUBMITTED ;*** Document Author: TML ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:48:12 2007" PRAGMA LAST_MODIFIED "2002-10-25" PRAGMA ID_AND_VERSION "8443.104.02.003" CONST L_MAX_CALLED_BCD_NO_LENGTH 10 ; Max Bcd number length (digits) CONST CURSOR_SMS_TEXT_140 140 ; Position SMS Message VALTAB VAL_data_valid VAL 0 DATA_VALID "" VAL 1 DATA_INVALID "" VAR reference "Reference" S VAR bcd "Bcd Number" B VAR data_valid "Cursor Data Valid" B VAL @p_mnlc - VAL_data_valid@ VAR number_length "Number of decimal digits in the Bcd number" B VAR sms_text "SMS text" B COMP called_party_bcd_num "called Party Bcd number" { number_length ; Number Length bcd [L_MAX_CALLED_BCD_NO_LENGTH] ; Bcd Number } ; MNLC_SMS_MEAS_REQ 0x80000044 ; MNLC_SMS_MEAS_CNF 0x80004044 PRIM MNLC_SMS_MEAS_REQ 0x80000044 { reference ; Reference SMS request called_party_bcd_num ; Called Bcd Number } PRIM MNLC_SMS_MEAS_CNF 0x80004044 { reference ; Reference SMS request data_valid ; Cursor Data Valid sms_text [CURSOR_SMS_TEXT_140] ; Cursor SMS }