Re: RTEMS for ARM Cortex-M1 ?
On Tue, Feb 17, 2015 at 10:53 AM, Daniel Gutson daniel.gut...@tallertechnologies.com wrote: El 14/02/2015 10:29, Sebastian Huber sebastian.hu...@embedded-brains.de escribió: On 14/02/15 14:27, Sebastian Huber wrote: On 14/02/15 12:48, Daniel Gutson wrote: We're developing support for the cortex M 4 so we can let you know once we commit the patches so you can have a starting point in case an emulator is also needed. The Cortex-M4 is already supported including the FPU (e.g. LPC4088). Hm, I should read more carefully. You added a Cortex-M4 support for Qemu including the FPU? We are currently working on it, but we're focused in the DSP part of the instruction set rather than the FP part. FWIW, it has been committed: (both patches are required) http://lists.nongnu.org/archive/html/qemu-devel/2015-06/msg03724.html http://lists.nongnu.org/archive/html/qemu-devel/2015-06/msg04234.html -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. -- Daniel F. Gutson Chief Engineering Officer, SPD San Lorenzo 47, 3rd Floor, Office 5 Córdoba, Argentina Phone: +54 351 4217888 / +54 351 4218211 Skype:dgutson LinkedIn: http://ar.linkedin.com/in/danielgutson ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
Re: RTEMS for ARM Cortex-M1 ?
Hi, Sorry I just see this thread now. On Sat, Feb 14, 2015 at 4:46 PM, Joel Sherrill joel.sherr...@oarcorp.com wrote: On February 14, 2015 10:38:13 AM CST, Alan Cudmore alan.cudm...@gmail.com wrote: Thanks for the info.. so it sounds like a new BSP and some changes to the ARMV7-M code in score. I wouldn't think there is a lot of work. Just tweaks to avoid instructions not available. The project will also look at some other fpga based cpus. I'm glad to see the openrisc and microblaze work going on. OpenRISC should be in good shape but your board may have more peripherals. There are few supported FPGA boards by OpenRISC [1]. Also, Parallella board [2] has Zynq FPGA, but my RTEMS port just run on the Epiphany chip and communite with Linux in the the Dual ARM A9 cores, however I believe that the Xilinx_Zynq BSP can easily run on the ARM cores there. Hesham has been making progress on Microblaze. He can update us. Hello World is working fine there, but didn't implement any timer functionality yet, besides the license issue.. [1] https://github.com/openrisc/orpsoc-cores/tree/master/systems [2] https://www.parallella.org/board/ Alan On Feb 14, 2015 8:29 AM, Sebastian Huber sebastian.hu...@embedded-brains.de wrote: On 14/02/15 14:27, Sebastian Huber wrote: On 14/02/15 12:48, Daniel Gutson wrote: We're developing support for the cortex M 4 so we can let you know once we commit the patches so you can have a starting point in case an emulator is also needed. The Cortex-M4 is already supported including the FPU (e.g. LPC4088). Hm, I should read more carefully. You added a Cortex-M4 support for Qemu including the FPU? -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel --joel ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel -- Hesham ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
Re: RTEMS for ARM Cortex-M1 ?
El 13/02/2015 22:59, Cudmore, Alan P. (GSFC-5820) alan.p.cudm...@nasa.gov escribió: A project is looking at using RTEMS on an FPGA based ARM Cortex-M1 like the one in the Microsemi ProAsic3L development kit: http://www.microsemi.com/products/fpga-soc/design-resources/dev-kits/proasi c3/cortex-m1-enabled-proasic3l-development-kit Wikipedia says the Cortex-M1 is an ARMv6M architecture. http://en.wikipedia.org/wiki/ARM_Cortex-M#Cortex-M1 I see that there is ARMv7M support in score, would a similar be needed for ARMv6M? Is an ARMv6M close to anything in RTEMS now? FWIW, We've developed a BSP for the cortex m3 which AFAIK has a reduced instruction set so the profiles should be similar. With correct configuration of the ticker and console drivers, the armv7-m should be a good starting point for your BSP. The GNU tool chain already supports the architecture, so all is needed from that side is the proper linker script. Finally,there's qemu which support Was not finished last time I checked. We're developing support for the cortex M 4 so we can let you know once we commit the patches so you can have a starting point in case an emulator is also needed. Thanks, Alan ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
Re: RTEMS for ARM Cortex-M1 ?
On February 14, 2015 10:38:13 AM CST, Alan Cudmore alan.cudm...@gmail.com wrote: Thanks for the info.. so it sounds like a new BSP and some changes to the ARMV7-M code in score. I wouldn't think there is a lot of work. Just tweaks to avoid instructions not available. The project will also look at some other fpga based cpus. I'm glad to see the openrisc and microblaze work going on. OpenRISC should be in good shape but your board may have more peripherals. Hesham has been making progress on Microblaze. He can update us. Alan On Feb 14, 2015 8:29 AM, Sebastian Huber sebastian.hu...@embedded-brains.de wrote: On 14/02/15 14:27, Sebastian Huber wrote: On 14/02/15 12:48, Daniel Gutson wrote: We're developing support for the cortex M 4 so we can let you know once we commit the patches so you can have a starting point in case an emulator is also needed. The Cortex-M4 is already supported including the FPU (e.g. LPC4088). Hm, I should read more carefully. You added a Cortex-M4 support for Qemu including the FPU? -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel --joel ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
Re: RTEMS for ARM Cortex-M1 ?
Thanks for the info.. so it sounds like a new BSP and some changes to the ARMV7-M code in score. The project will also look at some other fpga based cpus. I'm glad to see the openrisc and microblaze work going on. Alan On Feb 14, 2015 8:29 AM, Sebastian Huber sebastian.hu...@embedded-brains.de wrote: On 14/02/15 14:27, Sebastian Huber wrote: On 14/02/15 12:48, Daniel Gutson wrote: We're developing support for the cortex M 4 so we can let you know once we commit the patches so you can have a starting point in case an emulator is also needed. The Cortex-M4 is already supported including the FPU (e.g. LPC4088). Hm, I should read more carefully. You added a Cortex-M4 support for Qemu including the FPU? -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
Re: RTEMS for ARM Cortex-M1 ?
On 14/02/15 02:58, Cudmore, Alan P. (GSFC-5820) wrote: A project is looking at using RTEMS on an FPGA based ARM Cortex-M1 like the one in the Microsemi ProAsic3L development kit: http://www.microsemi.com/products/fpga-soc/design-resources/dev-kits/proasi c3/cortex-m1-enabled-proasic3l-development-kit Wikipedia says the Cortex-M1 is an ARMv6M architecture. http://en.wikipedia.org/wiki/ARM_Cortex-M#Cortex-M1 I see that there is ARMv7M support in score, would a similar port be needed for ARMv6M? Is an ARMv6M close to anything in RTEMS now? The ARMv6M has a reduced instruction set compared to ARMv7M. We have an ARMv6M multilib, so the GCC part should be fine. You have to fix some ARMv7M assembly code in RTEMS (not much). I tried to do this two weeks a go, but after 10 minutes I gave up, since it had no priority for me. -- Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
