Latest changes and additions: https://oberon-rtk.org/description/changes-2024-02-10/
Added inter-core messaging: https://oberon-rtk.org/description/inter-core-messages/
New example program: https://oberon-rtk.org/examples/messaging/
GitHub repo: https://github.com/ygrayne/oberon-rtk
Search found 98 matches
- Sun Feb 11, 2024 2:03 am
- Forum: Cortex-M0, M3, M4 and M7
- Topic: RP2040: Library & Tools for Astrobe Available
- Replies: 9
- Views: 7284
- Fri Feb 02, 2024 12:13 pm
- Forum: Cortex-M0, M3, M4 and M7
- Topic: RP2040: Library & Tools for Astrobe Available
- Replies: 9
- Views: 7284
Re: RP2040: Library & Tools for Astrobe Available
Recent changes and additions: 1) https://oberon-rtk.org/description/changes-2024-01-30/: signals and semaphores for thread synchronisation. Example programs: https://oberon-rtk.org/examples/signalsync/ and https://oberon-rtk.org/examples/semaphoresync/ 2) https://oberon-rtk.org/description/changes-2...
- Mon Jan 29, 2024 9:57 am
- Forum: Cortex-M0, M3, M4 and M7
- Topic: RP2040: Library & Tools for Astrobe Available
- Replies: 9
- Views: 7284
Re: RP2040: Library & Tools for Astrobe Available
Latest changes and extensions: https://oberon-rtk.org/description/changes-2024-01-29/ Main extension: reading from serial terminals: https://oberon-rtk.org/description/text-output-and-input/ New example program: https://oberon-rtk.org/examples/readterminal/ Some thoughts about the implications of us...
- Wed Jan 17, 2024 11:21 am
- Forum: Cortex-M0, M3, M4 and M7
- Topic: RP2040: Library & Tools for Astrobe Available
- Replies: 9
- Views: 7284
Re: RP2040: Library & Tools for Astrobe Available
Made a few library changes, mostly to the text output machinery: https://oberon-rtk.org/description/changes-2024-01-17/ Added a new example program, showing how to avoid busy waiting for a peripheral: https://oberon-rtk.org/examples/nobusywaiting/ Edited the kernel description for structure and hope...
- Mon Jan 15, 2024 9:45 am
- Forum: Cortex-M0, M3, M4 and M7
- Topic: RP2040: Library & Tools for Astrobe Available
- Replies: 9
- Views: 7284
RP2040: Library & Tools for Astrobe Available
Today, I have made available a first set of Oberon modules to program the RP2040 using Astrobe for Cortex-M0, v9.0.3. There's also a tool to transmogrify Astrobe '.bin' file to the contents and UF2 format for the RP2040. The library contains as of today: 1) Basics to get off the ground: clocks, rese...
- Mon Dec 18, 2023 1:37 pm
- Forum: Astrobe for ARM Cortex-M0, M3, M4 and M7
- Topic: Buffer Address for DMA
- Replies: 3
- Views: 9169
Re: Buffer Address for DMA
Interesting. Yes, this works, again a) checking the code and b) running a test program. Surprising though. The Astrobe docs about module system say: ADR returns the absolute address of the given variable. Now, that SYSTEM.ADR of a VAR procedure parameter would return the actual address of the argume...
- Mon Dec 18, 2023 10:13 am
- Forum: Astrobe for ARM Cortex-M0, M3, M4 and M7
- Topic: Buffer Address for DMA
- Replies: 3
- Views: 9169
Buffer Address for DMA
To avoid busy-waiting at a serial output peripheral (USART), I am implementing buffered text output to a terminal. The intention is to use the DMA peripheral on the M0. Among other configuration, the DMA channel expects 1) a memory address of the buffer, and 2) the number of data items to transfer f...
- Fri Nov 17, 2023 9:54 am
- Forum: Astrobe for ARM Cortex-M0, M3, M4 and M7
- Topic: Interrupt Handlers
- Replies: 2
- Views: 7774
Re: Interrupt Handlers
Wow. Smart. I am impressed. Thanks for that.
- Thu Nov 16, 2023 12:26 pm
- Forum: Astrobe for ARM Cortex-M0, M3, M4 and M7
- Topic: Interrupt Handlers
- Replies: 2
- Views: 7774
Interrupt Handlers
For the Cortex-M0, the prologue and epilogue generated for interrupt handlers is the same as for normal parameterless procedures. That is, they are the same for PROCEDURE p0; END p0; 0B500H push { lr } 046C0H nop 0BD00H pop { pc } 046C0H nop and PROCEDURE p1[0]; END p1; 0B500H push { lr } 046C0H nop...
- Sat Jun 17, 2023 4:41 am
- Forum: Astrobe for FPGA RISC5
- Topic: SYSTEM.LDREG
- Replies: 4
- Views: 91401
Re: SYSTEM.LDREG
SYSTEM.LDREG is also used in Oberon.Mod, and its sibling SYSTEM.REG in Kernel.Mod, Modules.Mod, System.Mod, as well as in the bootloader. SYSTEM.H, probably another undocumented feature, is used in Kernel.Mod. Hence, without undocumented features, no Oberon system as we know it.