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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           : udp.pdf
;*** Creation       : Wed Mar 11 09:58:55 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  : udp
;*** Document No.   : 8444.100.00.006
;*** Document Date  : 2003-08-26
;*** Document Status: BEING_PROCESSED
;*** Document Author: JK
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:56:22 2007"
PRAGMA 	LAST_MODIFIED 	"2003-08-26"
PRAGMA 	ID_AND_VERSION 	"8444.100.00.006"






VALTAB 	VAL_port
VAL 	0 	UDP_AUTOASSIGN_PORT 	"UDP must assign a free port number"

VALTAB 	VAL_err
VAL 	0 	UDP_BIND_NOERROR 	"no error"
VAL 	1 	UDP_BIND_PORTINUSE 	"port already in use"
VAL 	2 	UDP_BIND_UDPDOWN 	"udp is deactivated"




VAR 	port 	"destination port" 	S

VAL 	@p_udp - VAL_port@ 	

VAR 	err 	"error code" 	B

VAL 	@p_udp - VAL_err@ 	

VAR 	dst_port 	"destination port" 	S


VAR 	src_port 	"source port" 	S


VAR 	err_msg 	"error message" 	B


VAR 	src_addr 	"source address" 	L


VAR 	dst_addr 	"destination address" 	L








; UDP_BIND_REQ 	0x80000046
; UDP_BIND_CNF 	0x80004046
; UDP_CLOSEPORT_REQ 	0x80010046
; UDP_CLOSEPORT_CNF 	0x80014046
; UDP_ERROR_IND 	0x80024046
; UDP_ERROR_RES 	0x80020046
; UDP_SHUTDOWN_IND 	0x80034046
; UDP_SHUTDOWN_RES 	0x80030046



PRIM 	UDP_BIND_REQ 	0x80000046
{
 	port 	 ; port
}






PRIM 	UDP_BIND_CNF 	0x80004046
{
 	port 	 ; port
 	err 	 ; error code
}






PRIM 	UDP_CLOSEPORT_REQ 	0x80010046
{
 	port 	 ; port
}






PRIM 	UDP_CLOSEPORT_CNF 	0x80014046
{
}






PRIM 	UDP_ERROR_IND 	0x80024046
{
 	dst_port 	 ; Destination port
 	src_port 	 ; source port
 	err_msg 	 ; error message
 	src_addr 	 ; source address
 	dst_addr 	 ; Destination address
}






PRIM 	UDP_ERROR_RES 	0x80020046
{
}






PRIM 	UDP_SHUTDOWN_IND 	0x80034046
{
}






PRIM 	UDP_SHUTDOWN_RES 	0x80030046
{
}