Search found 108 matches
- Wed Jan 31, 2024 1:11 pm
- Forum: Bug Reports
- Topic: ARRAY OF BYTE Parameters
- Replies: 1
- Views: 877
ARRAY OF BYTE Parameters
The ARM Cortex-M Oberon Programmers Guide states in section 4.1 ARRAY of BYTE: If the formal parameter is an array of bytes with a fixed size it can accept actual parameters of any type, except POINTER, whose size is the same number of bytes [...] Example 1: TYPE Word = ARRAY 4 OF BYTE; PROCEDURE p0...
- Mon Jan 29, 2024 9:57 am
- Forum: Cortex-M0, M3, M4 and M7
- Topic: RP2040: Library & Tools for Astrobe Available
- Replies: 8
- Views: 1921
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: 8
- Views: 1921
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: 8
- Views: 1921
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...
- Wed Dec 27, 2023 1:54 am
- Forum: Bug Reports
- Topic: SYSTEM.EMITH Problem
- Replies: 1
- Views: 2466
SYSTEM.EMITH Problem
This test code MODULE TestEMITH; IMPORT SYSTEM; CONST SEV = 0BF40H; BEGIN SYSTEM.EMITH(SEV) END TestEMITH. results in a compiler exception (Astrobe for M0, v9.0.3): System.IndexOutOfRangeException: Index was outside the bounds of the array. at Decode.Decode.Op16IfThen(Int32 instr) at Decode.Decode.D...
- Mon Dec 25, 2023 1:28 pm
- Forum: Bug Reports
- Topic: SYSTEM.BIT Problem
- Replies: 1
- Views: 2700
SYSTEM.BIT Problem
Consider this code snippet REPEAT UNTIL SYSTEM.BIT(MCU.XOSC_STATUS, 31) and the corresponding assembly code: . 158 09EH 04808H ldr r0,[pc,#32] -> 192 . 160 0A0H 06801H ldr r1,[r0] . 162 0A2H 0D5FCH bpl.n -8 -> 158 . 192 <Const: 040024004H 040024004H> The procedure hangs at that point, unsurprisingly...
- 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: 6531
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: 6531
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...
- Mon Dec 11, 2023 11:44 pm
- Forum: Bug Reports
- Topic: Traps.GetName Misses Last Procedure
- Replies: 0
- Views: 4702
Traps.GetName Misses Last Procedure
I have been working on catching run-time errors in module bodies during the start-up of programs. To test, I have injected artificial errors, such as 'ASSERT(FALSE)', and the first obvious place was Main.Init, right at the end, after module Traps and the Terminal output have been initialised. Which ...
- Mon Dec 04, 2023 9:03 am
- Forum: Bug Reports
- Topic: Module Storage (1)
- Replies: 3
- Views: 3016
Re: Module Storage (1)
I suggest to replace the above quoted code with
Or remove it and amend 'Storage.StackAvailable()' accordingly, also removing VAR 'stackLimit' from the module.
Code: Select all
stackLimit := heapLimit;