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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
}