FreeCalypso > hg > fc-magnetite
view src/g23m-gprs/grlc/grlc_tmp.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 | 219afcfc6250 |
| children |
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/* +----------------------------------------------------------------------------- | Project : GPRS (8441) | Modul : GRLC +----------------------------------------------------------------------------- | 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 : Definitions for grlc_tmp.c. +----------------------------------------------------------------------------- */ #ifndef GRLC_TCP_H #define GRLC_TCP_H EXTERN void tm_grlc_data_req ( T_GRLC_DATA_REQ *grlc_data_req ); EXTERN void tm_grlc_unitdata_req ( T_GRLC_UNITDATA_REQ *grlc_unitdata_req ); EXTERN void tm_grlc_activate_gmm_queue_req ( T_GRLC_ACTIVATE_GMM_QUEUE_REQ *grlc_activate_gmm_queue_req ); EXTERN void tm_grlc_flush_data_req ( T_GRLC_FLUSH_DATA_REQ *grlc_flush_data_req ); EXTERN void tm_t3168 ( void ); EXTERN void tm_t3188 ( void ); EXTERN void tm_cgrlc_enable_req ( T_CGRLC_ENABLE_REQ *cgrlc_enable_req ); EXTERN void tm_cgrlc_disable_req ( T_CGRLC_DISABLE_REQ *cgrlc_disable_req ); EXTERN void tm_cgrlc_ul_tbf_res ( T_CGRLC_UL_TBF_RES *cgrlc_ul_tbf_res ); EXTERN void tm_cgrlc_dl_tbf_req ( T_CGRLC_DL_TBF_REQ *cgrlc_dl_tbf_req ); EXTERN void tm_cgrlc_tbf_rel_req ( T_CGRLC_TBF_REL_REQ *cgrlc_tbf_rel_req ); EXTERN void tm_cgrlc_tbf_rel_res ( T_CGRLC_TBF_REL_RES *cgrlc_tbf_rel_res ); EXTERN void tm_cgrlc_data_req ( T_CGRLC_DATA_REQ *cgrlc_data_req ); EXTERN void tm_cgrlc_poll_req ( T_CGRLC_POLL_REQ *cgrlc_poll_req ); EXTERN void tm_cgrlc_access_status_req ( T_CGRLC_ACCESS_STATUS_REQ *cgrlc_access_status_req ); EXTERN void tm_cgrlc_test_mode_req ( T_CGRLC_TEST_MODE_REQ *cgrlc_test_mode_req ); EXTERN void tm_cgrlc_test_end_req ( T_CGRLC_TEST_END_REQ *cgrlc_test_end_req ); EXTERN void tm_cgrlc_test_end_req ( T_CGRLC_TEST_END_REQ *cgrlc_test_end_req ); EXTERN void tm_cgrlc_ta_value_req ( T_CGRLC_TA_VALUE_REQ *cgrlc_ta_value_req ); EXTERN void tm_cgrlc_ready_timer_config_req ( T_CGRLC_READY_TIMER_CONFIG_REQ *cgrlc_ready_timer_config_req ); EXTERN void tm_cgrlc_force_to_standby_req ( T_CGRLC_FORCE_TO_STANDBY_REQ *cgrlc_force_to_standby_req ); EXTERN void tm_cgrlc_pwr_ctrl_req ( T_CGRLC_PWR_CTRL_REQ *pwr_ctrl_req ); #endif /* !GRLC_TCP_H */