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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents fa8dc04885d8
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  
+----------------------------------------------------------------------------- 
|  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 llc_t200f.c 
+----------------------------------------------------------------------------- 
*/ 


#ifndef LLC_T200F_H
#define LLC_T200F_H


/*
 * Function declarations.
 */
EXTERN void t200_init (void);

EXTERN void t200_start 
(
#ifdef LL_DESC
 T_LL_UNITDESC_REQ *frame,
#else
 T_LL_UNITDATA_REQ *frame,
#endif
 UBYTE cause,
 T_SERVICE originator
);

EXTERN void t200_stop (void);

EXTERN void t200_get_timer_data 
(
#ifdef LL_DESC 
 T_LL_UNITDESC_REQ **frame, 
#else
 T_LL_UNITDATA_REQ **frame, 
#endif 
 UBYTE *cause,
 T_SERVICE *originator
);



#endif /* !LLC_T200S_H */