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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           : mmsms.pdf
;*** Creation       : Wed Mar 11 09:58:22 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  : mmsms
;*** Document No.   : 6147.106.97.102
;*** Document Date  : 2002-07-19
;*** Document Status: BEING_PROCESSED
;*** Document Author: HM
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:47:08 2007"
PRAGMA 	LAST_MODIFIED 	"2002-07-19"
PRAGMA 	ID_AND_VERSION 	"6147.106.97.102"



CONST 	MAX_SDU_LEN 	1 	; maximum service data unit length



VALTAB 	VAL_ti
VAL 	0 - 6 	"ms originated transaction"
VAL 	8 - 14 	"ms originated transaction"
VAL 	7 	TI_RES_MO 	"reserved"
VAL 	15 	TI_RES_MT 	"reserved"




VAR 	cause 	"MM cause" 	S


VAR 	l_buf 	"length in bits" 	S


VAR 	o_buf 	"offset in bits" 	S


VAR 	buf 	"bit buffer" 	B


VAR 	ti 	"transaction identifier" 	B

VAL 	@p_mmsms - VAL_ti@ 	

VAR 	d1 	"dummy, not used" 	B


VAR 	d2 	"dummy, not used" 	B





COMP 	sdu 	 "Service Data Unit"
{
 	l_buf 	 ; length in bits
 	o_buf 	 ; offset in bits
 	buf 	[MAX_SDU_LEN] 	 ; bit buffer
}






; MMSMS_ESTABLISH_REQ 	0x80000009
; MMSMS_RELEASE_REQ 	0x80010009
; MMSMS_DATA_REQ 	0x80020009
; MMSMS_DATA_IND 	0x80004009
; MMSMS_ERROR_IND 	0x80014009
; MMSMS_ESTABLISH_CNF 	0x80024009
; MMSMS_ESTABLISH_IND 	0x80034009
; MMSMS_RELEASE_IND 	0x80044009
; MMSMS_UNITDATA_IND 	0x80054009



PRIM 	MMSMS_ESTABLISH_REQ 	0x80000009
{
 	ti 	 ; transaction identifier
}






PRIM 	MMSMS_RELEASE_REQ 	0x80010009
{
 	ti 	 ; transaction identifier
}






PRIM 	MMSMS_DATA_REQ 	0x80020009
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}






PRIM 	MMSMS_DATA_IND 	0x80004009
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}






PRIM 	MMSMS_ERROR_IND 	0x80014009
{
 	ti 	 ; transaction identifier
 	cause 	 ; error cause
}






PRIM 	MMSMS_ESTABLISH_CNF 	0x80024009
{
 	ti 	 ; transaction identifier
}






PRIM 	MMSMS_ESTABLISH_IND 	0x80034009
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}






PRIM 	MMSMS_RELEASE_IND 	0x80044009
{
 	ti 	 ; transaction identifier
 	cause 	 ; release cause
}






PRIM 	MMSMS_UNITDATA_IND 	0x80054009
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}