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port.c from --Atmel-IAR-AtmelSAM9XE
Posted by ddement on September 23, 2009
I'm trying to clone the port.c from the AtmelSAM9XE folder as the basis for a SAM9260 system, but built with an older (4.20) IAR compiler.
I look at the prvSetupTimerInterrupt() code which uses the AIC_ConfigureIT() function to link the PIT interrupt to its handler. The handler is specified as vPortTickISR(). The comments in ISR code says it is called by a wrapper, but it sure doesn't look like that is how the AIC is set up. And I can't find a tick wrapper .s79 source file anywhere.
Can anyone please clarify - is this really correct?
Thank you.
I look at the prvSetupTimerInterrupt() code which uses the AIC_ConfigureIT() function to link the PIT interrupt to its handler. The handler is specified as vPortTickISR(). The comments in ISR code says it is called by a wrapper, but it sure doesn't look like that is how the AIC is set up. And I can't find a tick wrapper .s79 source file anywhere.
Can anyone please clarify - is this really correct?
Thank you.
RE: port.c from --Atmel-IAR-AtmelSAM9XE
Posted by MEdwards on September 23, 2009
IAR V5 using .s as the file extension, look for a file with .s rather that .s79.
RE: port.c from --Atmel-IAR-AtmelSAM9XE
Posted by ddement on September 23, 2009
Thank you - I did find the vectors and front end code which calls the C handler between the context save and restore. It makes sense with that code. I appreciate your help.
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Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.