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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 35f7a1dc9f7d
children
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;********************************************************************************
;*** File           : cst.pdf
;*** Creation       : Wed Mar 11 09:57:45 CST 2009
;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1
;*** Copyright      : (c) Texas Instruments AG, Berlin Germany 2002
;********************************************************************************
;*** Document Type  : Service Access Point Specification
;*** Document Name  : cst
;*** Document No.   : 8415.060.99.003
;*** Document Date  : 1999-09-21
;*** Document Status: BEING_PROCESSED
;*** Document Author: Heiner
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:39:04 2007"
PRAGMA 	LAST_MODIFIED 	"1999-09-21"
PRAGMA 	ID_AND_VERSION 	"8415.060.99.003"









VAR 	adc_values 	"AD conversion values" 	S


VAR 	stop_address 	"contains stop address" 	L


VAR 	error_code 	"Error code" 	B


VAR 	index 	"Index" 	B








; CST_ADC_IND 	0x5600
; CST_VM_STOP_PLAY_IND 	0x5601
; CST_VM_STOP_RECORD_IND 	0x5602
; CST_SR_IND 	0x5603



PRIM 	CST_ADC_IND 	0x5600
{
 	adc_values 	[9] 	 ; AD conversion values
}






PRIM 	CST_VM_STOP_PLAY_IND 	0x5601
{
 	stop_address 	 ; stop address
}






PRIM 	CST_VM_STOP_RECORD_IND 	0x5602
{
 	stop_address 	 ; stop address
}






PRIM 	CST_SR_IND 	0x5603
{
 	error_code 	 ; Error code
 	index 	 ; Index
}