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| cr1901_modern | tinyfpga: Is there a process for upgrading the bootloader for tinyfpga BX from the old one? Do you have any particular flashing application you use (flashrom seems overkill for this)? | 13:47 |
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| tinyfpga | I don’t yet have a process...but I have a couple ideas | 15:10 |
| tinyfpga | cr1901_modern: it depends actually, if it’s a BX, then it’s easy...just use tinyprog -l to see where the bootloader is located then use the -a option to specific the address when programming a new bootloader | 15:11 |
| tinyfpga | cr1901_modern: if you have a B2 board...it’s more complicated | 15:11 |
| cr1901_modern | I have a tinyfpga B2 | 15:11 |
| tinyfpga | cr1901_modern: for the B2 boards you should first write the new bootloader as a user bitstream | 15:12 |
| tinyfpga | cr1901_modern: and you have to do that with tinyfpgab | 15:12 |
| cr1901_modern | I don't remember how I know this, but user bitstream begins at 0x30000 on B2 | 15:12 |
| tinyfpga | cr1901_modern: at that point you could use tinyprog to replace the old bootloader but then you will also want to update the metadata | 15:13 |
| cr1901_modern | That's the thing... does my board even have metadata? | 15:13 |
| tinyfpga | cr1901_modern: I really need to create a script to do this | 15:13 |
| tinyfpga | cr1901_modern: the old boards have no metadata | 15:13 |
| tinyfpga | cr1901_modern: which is OK, but not convenient | 15:13 |
| cr1901_modern | can the new bootloader write to sectors 0-3 to add the relevant metadata and then write-protect them? | 15:14 |
| * cr1901_modern will attempt to do the upgrade in a bit, afk for now | 15:17 | |
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