Open tcal-x opened 3 years ago
Thanks for filing this.
Does it work if you set the csr width to 8? It was 8 in 2.0.3, but I believe it was adjusted upwards to 32. This would affect the timer register, which that example ought to use.
On 27 October 2020 5:08:18 am SGT, Other Tim notifications@github.com wrote:
tinyusb/examples/device/cdc_dual_ports doesn't seem to work with the foboot updater that I build at current master head, e928b868f55030e75ac6ba274acf3ed34599ddb4.
The tinyusb examples work with the foboot 2.0.3 release. Also, I checked out c9571b5 and rebuild myself to make sure it wasn't something in my build environment. That worked with the tinyusb examples as well.
I'm filing this so I have a place to record my findings if I get time to do any bisection of the CLs.
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Yep, that's it.
I changed to csr_data_width=8
in hw/foboot-bitstream.py
, and also changed this line in sw/include/system.h
:
// Forward-define this function, because it's defined inside `csr.h`,
// which includes this file near the top.
-static inline void reboot_ctrl_write(uint32_t v);
+static inline void reboot_ctrl_write(uint8_t v);
...which I was a little unsure about, but it compiled, and now the tinyusb examples work, with current master plus the changes above.
Now that you mention it, I do remember seeing some code that seemed a little funny in that it was relying on an implicit cast to 8b to truncate a value that was most probably outside of an 8b range originally. I can't remember exactly where I saw that code though.
tinyusb/examples/device/cdc_dual_ports doesn't seem to work with the foboot updater that I build at current master head, e928b868f55030e75ac6ba274acf3ed34599ddb4.
The tinyusb examples work with the foboot 2.0.3 release. Also, I checked out c9571b5 and rebuild myself to make sure it wasn't something in my build environment. That worked with the tinyusb examples as well.
I'm filing this so I have a place to record my findings if I get time to do any bisection of the CLs.