226e163adf
Improve Downstream error handling:
...
- Slow flash fault LED when unsupported device connected
- Disconnect downstream USB host on error
9 years ago
431a527e24
Tidy up commented DMA init code
9 years ago
58308c4a89
Added Mozilla Public License information to file headers.
...
Mozilla Public License v2.0 is compatible with the various licenses used
by ST and ARM.
9 years ago
2e3293e84f
Increase SPI interface speed 4x, to 5.25Mbps. Required modifications to
...
SPI peripheral library. At this speed SPI requires ~60% CPU time at -Og
optimisation level. This could be further improved by trimming down the
SPI interrupt. But...
Speed is now limited by Downstream's single-packet-per-URB restriction,
to about 460kB/s. USB Middleware does not implement TX FIFO empty
interrupt, so a bit of work is required here.
9 years ago
08c8c7a6d6
Code tidyup - remove unused SPI Tx-only and Rx-only routines
9 years ago
ce03845623
Completed moving Upstream to interrupt-based SPI.
...
Although I am not entirely convinced this is necessary, as the SPI data
stall issue only appeared with optimisation off (-O0). Perhaps re-visit
this if Upstream needs more free CPU time later...
9 years ago
b9cc31d036
Crazy hardware issues, about to revert Upstream SPI from DMA to
...
interrupt transfers
9 years ago
48a6c2e2a4
Bugfixes for Downstream, including one in the USB host stack!
...
Downstream now enumerates and accepts attached USB storage devices.
9 years ago
750c2f3a21
- Implement notification of Downstream USB device removal, and
...
corresponding Upstream disconnection
- Improve Upstream handling of TxOk signal from Downstream
- Misc tweaks
9 years ago
f24714cd8c
Revisit Upstream project to:
...
- Implement Upstream state machine, with Downstream-dependent device
emulation
- Add fault LED flashing
- Improve fault handling and freakouts
- Misc bug fixes
9 years ago
fc522bae0a
Added priority elevation to Downstream USB host processing code that
...
interacts with SPI.
It elevates to USB_OTG priority to avoid preemption by SPI, DMA, or USB
interrupts thus avoiding synchronisation issues between USB host stack
and SPI interface.
Also minor improvements to Downstream error handling.
9 years ago
c1b2c191c4
Improved Downstream error handling:
...
- More sensible handling of error cases on SPI interface
- Improved Freakout macros
- Implemented automatic fault LED blinking
9 years ago
0e1fed6047
Full implementation of Downstream MSC interface, including significant
...
modifications to USB host MSC.
Also, minor tweaks to Upstream.
9 years ago
b9b6123642
Commit of Downstream before diving into USB MSC class driver
...
modifications.
Also correct project settings to compile for Cortex M4 architecture.
10 years ago
674cb621a7
Initial implementation of Downstream SPI interface and state machine.
10 years ago
7b4e4b3c14
Continued polishing work on Downstream project.
10 years ago
503d79de56
Streamlining Downstream project
10 years ago
55c8a21aad
Initial commit of Downstream template project.
10 years ago
Robert Fisk