FreeCalypso > hg > fc-magnetite
view src/cs/services/mks/mks_messages_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 mks_messages_i.h * * Data structures that MKS SWE can receive. * * These messages are send by the bridge function. There are not available * out of the SWE. * * @author Laurent Sollier (l-sollier@ti.com) * @version 0.1 */ /* * History: * * Date Author Modification * ---------------------------------------- * 11/19/2001 L Sollier Create * * * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved */ #ifndef _MKS_MESSAGES_I_H_ #define _MKS_MESSAGES_I_H_ /** * @name MKS_INFOS_KEY_SEQUENCE_MSG * * Internal message. * * Message issued by MKS to MKS task. * This message is used to add a magic key sequence. */ /*@{*/ /** Message ID. */ #define MKS_INFOS_KEY_SEQUENCE_MSG (MKS_MESSAGES_OFFSET | 0x002) /** Message structure. */ typedef struct { /** Message header. */ T_RV_HDR hdr; /** Magic key sequence informations. */ T_MKS_INFOS_KEY_SEQUENCE key_sequence_infos; } T_MKS_INFOS_KEY_SEQUENCE_MSG; /*@}*/ /** * @name MKS_REMOVE_KEY_SEQUENCE_MSG * * Internal message. * * Message issued by MKS to MKS task. * This message is used to remove a magic key sequence. */ /*@{*/ /** Message ID. */ #define MKS_REMOVE_KEY_SEQUENCE_MSG (MKS_MESSAGES_OFFSET | 0x003) /** Message structure. */ typedef struct { /** Message header. */ T_RV_HDR hdr; /** Magic key sequence name. */ char name[KPD_MAX_CHAR_NAME+1]; } T_MKS_REMOVE_KEY_SEQUENCE_MSG; /*@}*/ #endif /* _MKS_MESSAGES_I_H_ */