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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 56abf6cf8a0b
children
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;********************************************************************************
;*** File           : tb.pdf
;*** Creation       : Fri Jun 08 13:58:39 CST 2007
;*** 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  : tb
;*** Document No.   : 8441.112.01.002
;*** Document Date  : 2001-07-17
;*** Document Status: BEING_PROCESSED
;*** Document Author: SAB
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Mon Nov 24 15:51:14 2003"
PRAGMA 	LAST_MODIFIED 	"2001-07-17"
PRAGMA 	ID_AND_VERSION 	"8441.112.01.002"



CONST 	TB_BA_LIST_SIZE 	33 	; BA list size



VALTAB 	VAL_arfcn
VAL 	1 - 124 	"GSM 900 without extension band"
VAL 	1 - 174 	"GSM 900 with extension band"
VAL 	512 - 810 	"PCS 1900"
VAL 	512 - 885 	"DCS 1800"
VAL 	1 - 498 	"Dual band(GSM/DCS)"
VAL 	1 - 548 	"Dual band(EGSM/DCS)"
VAL 	0xFFFF 	TB_INVALID_ARFCN 	"Used to mark a channel number entry as invalid."




VAR 	num_meas 	"number" 	B


VAR 	rxlev 	"measurement value" 	S


VAR 	arfcn 	"channel number" 	S

VAL 	@p_tb - VAL_arfcn@ 	

VAR 	sc_rxlev 	"RXLEV value of the serving cell." 	B





COMP 	tb_meas_result 	 ""
{
 	arfcn 	 ; Channel Number
 	rxlev 	 ; ACC Level
 	num_meas 	 ; ACC nbr
}






; TB_MEAS_IND 	0x1800
; TB_RXLEV_SC_REQ 	0x5800



PRIM 	TB_MEAS_IND 	0x1800
{
 	tb_meas_result 	[TB_BA_LIST_SIZE] 	 ; Measurement result
}






PRIM 	TB_RXLEV_SC_REQ 	0x5800
{
 	sc_rxlev 	 ; RXLEV Serving Cell
}