Exception priority behavior
Hi, I need to know what happens in the v7 architecture (TI Cortex R4) when both a data abort and FIQ are due to occur. I found the following document which attempts to address this question but...
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The device technical reference manual ESM section records:
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Hello Ryan, although I cannot have firm belief, I agree with you. I interpret "When the FIQ handler returns" as "When the data abort occurs on the FIQ handler return". Isn't it proper? Best regards,...
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Hi yasuhikokoumoto, Thank you for your response. I am not sure what you mean by "When the data abort occurs on the FIQ handler return."
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Hello, I mean the stack pop or an interrupt return address might cause the data abort. Best regards, Yasuhiko Koumoto.
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Hi, This is a subtle point and needs a careful explanation - let me try! A Data Abort is a very important event and usually indicates that something serious has happened and that the OS needs to...
View ArticleRe: Exception priority behavior
Thank you, Chris. This is exactly what I was looking for.
View ArticleException priority behavior
Hi, I need to know what happens in the v7 architecture (TI Cortex R4) when both a data abort and FIQ are due to occur. I found the following document which attempts to address this question but...
View ArticleRe: Exception priority behavior
The device technical reference manual ESM section records: Group3 errors are reserved for high severity errors generated by diagnostics which have already generated a CPU abort response. Because an...
View ArticleRe: Exception priority behavior
Hello Ryan, although I cannot have firm belief, I agree with you. I interpret "When the FIQ handler returns" as "When the data abort occurs on the FIQ handler return". Isn't it proper? Best regards,...
View ArticleRe: Exception priority behavior
Hi yasuhikokoumoto, Thank you for your response. I am not sure what you mean by "When the data abort occurs on the FIQ handler return."
View ArticleRe: Exception priority behavior
Hello, I mean the stack pop or an interrupt return address might cause the data abort. Best regards, Yasuhiko Koumoto.
View ArticleRe: Exception priority behavior
Hi, This is a subtle point and needs a careful explanation - let me try! A Data Abort is a very important event and usually indicates that something serious has happened and that the OS needs to...
View ArticleRe: Exception priority behavior
Thank you, Chris. This is exactly what I was looking for.
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