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view src/cs/services/dar/dar_gen.h @ 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 945cf7f506b2
children
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/********************************************************************************/
/*                                                                              */
/*    File Name:   dar_gen.h                                                    */
/*                                                                              */
/*    Purpose:     This file contain general definitions of DAR Module.         */
/*                                                                              */
/*    Note:                                                                     */
/*        None.                                                                 */
/*                                                                              */
/*    Revision History:                                                         */
/*       9 October 2001      Stephanie Gerthoux        Create                   */
/*                                                                              */
/* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved.   */
/*                                                                              */
/********************************************************************************/

#ifndef __DAR_GEN_H__
#define __DAR_GEN_H__

   #include "rv/general.h"


   /**** Type definitions ****/

   /** Dar data format : ASCII or binary **/ 
   typedef INT8 T_DAR_FORMAT;
   /* possible values */
   #define DAR_ASCII_FORMAT     (0)   /* ASCII format */
   #define DAR_BINARY_FORMAT    (-1)  /* Binary format */

   /** DAR data level ( Error / Warning / Debug) **/
   typedef UINT8 T_DAR_LEVEL;

   typedef UINT8* T_DAR_BUFFER;

   typedef char T_DAR_INFO;

   /** DAR callback function **/
   typedef void (*DAR_CALLBACK_FUNC)(T_DAR_BUFFER, UINT16);

   /** DAR Level Default definition **/
   #define DAR_LEVEL_DEFAULT     (DAR_ERROR)

#endif