FreeCalypso > hg > fc-magnetite
view src/cs/services/etm/etm_api.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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/******************************************************************************** * Enhanced TestMode (ETM) * @file etm_api.c * * API for ETM SWE. * * @author Kim T. Peteren (ktp@ti.com) * @version 0.1 * * * History: * * Date Modification * ------------------------------------ * 11/06/2003 Creation * * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved *********************************************************************************/ #ifndef __ETM_API_H_ #define __ETM_API_H_ #include "etm/etm_misc.h" #include "etm/etm_messages_i.h" /****************************************************************************** * ETM Packet *****************************************************************************/ typedef struct { T_RV_HDR header; char size; uint8 data[255]; } T_ETM_MAIL; /****************************************************************************** * Messages *****************************************************************************/ /* Event return to entity */ #define ETM_DATA_READY (ETM_MESSAGES_OFFSET | 0x010) typedef struct { T_RV_HDR header; char data[255]; } T_ETM_DATA_READY; /****************************************************************************** * Prototypes *****************************************************************************/ int etm_register(char name[], int mid, int task_id, T_RVF_ADDR_ID addr_id, ETM_CALLBACK_FUNC callback); int etm_unregister(char name[], int mid, int task_id, T_RVF_ADDR_ID addr_id, ETM_CALLBACK_FUNC callback); int etm_pkt_send(T_ETM_PKT *pkt); int etm_pkt_putdata(T_ETM_PKT *pkt, const void *buf, int size); int etm_get8(void *buf); int etm_get16(void *buf); int etm_get32(void *buf); int etm_pkt_put8(T_ETM_PKT *p, int value); int etm_pkt_put16(T_ETM_PKT *p, int value); int etm_pkt_put32(T_ETM_PKT *p, int value); #endif /* __ETM_API_H_ */