Astrobe Forum

Maybe you are trying to program the xc7a35t FPGA directly instead of programming the CMod-A7 Quad-SPI Flash? Refer to Section 4 Quad-SPI Flash in the CMod A7 Reference Manual for details: https://digilent.com/reference/programmable-logic/cmod-a7/reference-manual When you have used the information th...

Sorry about the delay in replying - I didn't notice your message in the moderation queue until today. Subsequent messages from you will not require approval. What SD Card adapter are you using? What tool did you use to store the SD Card image onto the SD Card? Are you sure you used the correct bitst...

The clues in the exception traceback report are the procedure calls GPBinFiles.findOnPath and NewSymFileRW.SymFileReader.Parse . This indicates to me that it is in the process of looking for symbol files on your path. As this is a new installation I suspect that the CPSYM environment variable requir...

The Run button behaviour that you describe is ‘as designed’. There are two Run menu items, Run and Run Again . The button corresponds to the Run Again function as that is more frequently used and doesn’t require the entry of any parameters. If you switch to a new example, you need to select Run from...

Refer to Section 8.1 Layout and run-time organization of the Project Oberon (2013) Documentation: R13 base address for variables in the current module SB (static base) If you then look at the RISC5 compiler modification history you will see the following entry for 2018: 20180720 - Update compiler: O...

That particular section of code is taken 'as is' from the Project Oberon source code. As far as I am aware LDREG is an 'undocumented feature' in the RISC5 compiler - I have only seen it mentioned without explanation in some example code. Hence, you should make no assumptions about what it should or ...

The hardware description language (HDL) Lola (Logic Language) was designed by Niklaus Wirth in 1990 as an effort to present a simple and effective textual description of digital circuits. Other, similar but more complex, HDLs that you may have heard of are VHDL and Verilog . The use of the Lola2 com...

CPIde now includes the full source code for an Oberon for FPGA RISC5 command-line compiler as example code. These are the same source code modules used for the Oberon compiler in Astrobe for FPGA RISC5 . Consequently, the source code, symbol files and code files it uses and generates are 100% compa...

CPIde now includes the full source code for an Oberon for FPGA RISC5 command-line compiler as example code. These are the same modules used for the Oberon compiler in Astrobe for FPGA RISC5 . Consequently, the source code, symbol files and code files this compiler uses and generates are 100% compat...

I have checked and as far as I can see the Astrobe compiler more or less works like the Project Oberon compiler as far as indirect imports go. As an example, if module M1 imports Texts and module M1 exports an item that references Texts then a module that imports M1 will indirectly import Texts as w...