FreeCalypso > hg > fc-magnetite
view src/cs/services/dar/dar_macro_i.h @ 629:3231dd9b38c1
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_macro_i.h */ /* */ /* Purpose: This header contains the generic structures and constants */ /* that are used by the Diagnose And Recovery layer. */ /* */ /* Note: */ /* None. */ /* */ /* Revision History: */ /* 27 September 2001 Stephanie Gerthoux Create */ /* */ /* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved. */ /* */ /********************************************************************************/ #include "rv/rv_defined_swe.h" #include "dar/dar_const_i.h" #include "rvm/rvm_use_id_list.h" #ifdef RVM_DAR_SWE #ifndef _DAR_MACRO_I_H #define _DAR_MACRO_I_H #ifdef __cplusplus extern "C" { #endif /* DAR trace macros */ #define DAR_SEND_TRACE(string,type) rvf_send_trace (string,(sizeof(string)-1),NULL_PARAM,type,DAR_USE_ID) #define DAR_SEND_TRACE_PARAM(string,param,type) rvf_send_trace (string,(sizeof(string)-1),(UINT32)param,type,DAR_USE_ID) #define DAR_TRACE_WARNING(string) rvf_send_trace (string,(sizeof(string)-1),NULL_PARAM,RV_TRACE_LEVEL_WARNING,DAR_USE_ID) /* Macro used to calculate the value of the index of the circular buffer */ /* When the end of the buffer is reached, the index = 0 */ #define DAR_PLUS_PLUS(dar_current_index) \ { \ dar_current_index++;\ if (dar_current_index == DAR_MAX_BUFFER_SIZE)\ {\ dar_current_index = 0;\ }\ } \ #ifdef __cplusplus } #endif #endif #endif /* #ifdef RVM_DAR_SWE */
