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view cdg-hybrid/cdginc/p_cst.val @ 629:3231dd9b38c1

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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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/*
+--------------------------------------------------------------------------+
| PROJECT : PROTOCOL STACK                                                 |
| FILE    : p_cst.val                                                      |
| SOURCE  : "sap\cst.pdf"                                                  |
| LastModified : "1999-09-21"                                              |
| IdAndVersion : "8415.060.99.003"                                         |
| SrcFileTime  : "Thu Nov 29 09:39:04 2007"                                |
| Generated by CCDGEN_2.5.5A on Fri Oct 14 21:41:52 2016                   |
|           !!DO NOT MODIFY!!DO NOT MODIFY!!DO NOT MODIFY!!                |
+--------------------------------------------------------------------------+
*/

/* PRAGMAS
 * PREFIX                 : NONE
 * COMPATIBILITY_DEFINES  : NO (require PREFIX)
 * ALWAYS_ENUM_IN_VAL_FILE: NO
 * ENABLE_GROUP: NO
 * CAPITALIZE_TYPENAME: NO
 */


#ifndef P_CST_VAL
#define P_CST_VAL


#define CDG_ENTER__P_CST_VAL

#define CDG_ENTER__FILENAME _P_CST_VAL
#define CDG_ENTER__P_CST_VAL__FILE_TYPE CDGINC
#define CDG_ENTER__P_CST_VAL__LAST_MODIFIED _1999_09_21
#define CDG_ENTER__P_CST_VAL__ID_AND_VERSION _8415_060_99_003

#define CDG_ENTER__P_CST_VAL__SRC_FILE_TIME _Thu_Nov_29_09_39_04_2007

#include "CDG_ENTER.h"

#undef CDG_ENTER__P_CST_VAL

#undef CDG_ENTER__FILENAME


#include "CDG_LEAVE.h"


#endif