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FreeRTOS Support ArchiveThe FreeRTOS support forum is used to obtain active support directly from Real Time Engineers Ltd. In return for using our top quality software and services for free, we request you play fair and do your bit to help others too! Sign up to receive notifications of new support topics then help where you can.
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Could I use AT91SAM9 Series ?Posted by Uchoa on April 6, 2008 Hi everybody, I am "newbie" in arm9 architechture. I would like to know if FreeRTOS is compatible with AT91SAM9 series. I will use the ATMEL AT91SAM9 development Kit. Could I base my project in SAM7 architechture ? Best regards. RE: Could I use AT91SAM9 Series ?Posted by Dave on April 7, 2008 I think the SAM9 peripheral are very similar if not the same as the SAM7. The programmers model of the ARM9 is equivalent to the RTOS as the ARM7. It should I think be easy enough to adapt a SAM7 demo to the SAM9. RE: Could I use AT91SAM9 Series ?Posted by Çağlar Akyüz on April 7, 2008 This question is coming time to time. Although programming models are same for SAM9 and SAM7 series, SAM9 has a armv5t core whereas SAM7s have armv4t cores. Do you think freeRTOS macro's will be the same for both? I have no assembler experience, this is just the first question coming to my mind about a possible SAM9 port. Caglar RE: Could I use AT91SAM9 Series ?Posted by woops_ on April 7, 2008 There is already an STR9 port. Compare this to the STR7 port. I dont think many differences. The bus systems are different on the ARM9 but this is not visible to the software. RE: Could I use AT91SAM9 Series ?Posted by Uchoa on April 7, 2008 Hi, I think to modify the SAM7 FreeRTOS source to SAM9 could be easy if the Hardware Ports, I/O Devices and registers were well described in the #include files. Problaby hardware abstraction would be got that way. I don´t know FreeRTOS but I think compiling the Kernel is not a problem. I´ve some doubt if is possible to execute threads in that core. Does Anybory knows ? Sds. RE: Could I use AT91SAM9 Series ?Posted by Uchoa on April 8, 2008 Yes, I´m agree with you but I don´t know of sure. I think to modify the SAM7 FreeRTOS source to SAM9 could be easy if the hardware ports, I/O devices and registers were well described in the #include files. Problaby hardware abstraction would be got that way. I don´t know FreeRTOS but I think compiling the Kernel is not a problem. I´ve some doubt if is possible to execute threads in that core. Anybody knows about that? Sds.
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