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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 e7a67accfad9
children
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;********************************************************************************
;*** File           : gmmsms.pdf
;*** Creation       : Wed Mar 11 09:58:06 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  : gmmsms
;*** Document No.   : 8441.105.99.001
;*** Document Date  : 1999-06-22
;*** Document Status: BEING_PROCESSED
;*** Document Author: ANS
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:42:44 2007"
PRAGMA 	LAST_MODIFIED 	"1999-06-22"
PRAGMA 	ID_AND_VERSION 	"8441.105.99.001"






VALTAB 	VAL_reg_state
VAL 	0 	SMS_RS_DEREGISTERED 	"GMM context for SMS is removed"
VAL 	1 	SMS_RS_REGISTERED 	"GMM context for SMS is built"

VALTAB 	VAL_radio_priority_level
VAL 	DEF 	 	"priority level 4"
VAL 	1 	SMS_RP_LEVEL_1 	"priority level 1"
VAL 	2 	SMS_RP_LEVEL_2 	"priority level 2??????????"
VAL 	3 	SMS_RP_LEVEL_3 	"priority level 3"
VAL 	4 	SMS_RP_LEVEL_4 	"priority level 4"




VAR 	reg_state 	"Registration state" 	B

VAL 	@p_gmmsms - VAL_reg_state@ 	

VAR 	radio_priority_level 	"Radio priority level" 	B

VAL 	@p_gmmsms - VAL_radio_priority_level@ 	







; GMMSMS_REG_STATE_REQ 	0x2300
; GMMSMS_REG_STATE_CNF 	0x6300



PRIM 	GMMSMS_REG_STATE_REQ 	0x2300
{
}






PRIM 	GMMSMS_REG_STATE_CNF 	0x6300
{
 	reg_state 	 ; Registration state
 	radio_priority_level 	 ; Radio priority level
}