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view src/g23m-gprs/grr/cnf_grr.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 219afcfc6250
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  GRR
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Dynamic Configuration for GPRS Radio Resource Management (GRR).
+----------------------------------------------------------------------------- 
*/ 

#ifndef CNF_GRR_H
#define CNF_GRR_H


/*==== CONST ================================================================*/
/*
 * CONFIGURATION PARAMETER
 *
 * Description :  The constants define the commands for dynamic
 *                configuration proposals.
 */
#define GRR_STR_IM_INIT     "GRR_IM_INIT"
#define GRR_STR_TBF_CCCH    "GRR_TBF_CCCH"
#define GRR_STR_NO_TBF_CCCH "GRR_NO_TBF_CCCH"
#define GRR_STR_CRP_TRACE   "GRR_CRP_TRACE"
#define GRR_STR_IM_TRACE    "GRR_IM_TRACE"
#define GRR_STR_RES_RANDOM  "GRR_RES_RANDOM"
#define GRR_STR_STD         "STD"
#define GRR_STR_NC2         "NC2_ACTIVE"


#define GRR_NUM_IM_INIT     0
#define GRR_NUM_TBF_CCCH    1
#define GRR_NUM_NO_TBF_CCCH 2
#define GRR_NUM_CRP_TRACE   3
#define GRR_NUM_IM_TRACE    4
#define GRR_NUM_RES_RANDOM  5
#define GRR_NUM_STD         6
#define GRR_NUM_NC2         7

#endif /* !CNF_GRR_H */