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| author | Gregory Nutt <gnutt@nuttx.org> | 2013-05-29 10:26:00 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2013-05-29 10:26:00 -0600 |
| commit | 26346bebfa749b55d1dd983c478d14c913eb9619 (patch) | |
| tree | d8c42f6585bfb31af497f7100b09b3b2f9274bf8 /nuttx/configs/stm32f4discovery | |
| parent | c2f92bd1abeb2cab6b1dffb6f88f10b6c8b596e1 (diff) | |
| download | px4-nuttx-26346bebfa749b55d1dd983c478d14c913eb9619.tar.gz px4-nuttx-26346bebfa749b55d1dd983c478d14c913eb9619.tar.bz2 px4-nuttx-26346bebfa749b55d1dd983c478d14c913eb9619.zip | |
Fix STM32F1 and F3 USB device driver. It was not handling NULL packets correctly and it prevent use of the driver with the CDC/ACM class
Diffstat (limited to 'nuttx/configs/stm32f4discovery')
| -rw-r--r-- | nuttx/configs/stm32f4discovery/README.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/nuttx/configs/stm32f4discovery/README.txt b/nuttx/configs/stm32f4discovery/README.txt index 684c916f5..e94bd466b 100644 --- a/nuttx/configs/stm32f4discovery/README.txt +++ b/nuttx/configs/stm32f4discovery/README.txt @@ -1641,6 +1641,12 @@ Where <subdir> is one of the following: configuration so nothing should appear on UART2 unless you enable some debug output or enable the USB monitor. + NOTE: Using the SYSLOG to get debug output has limitations. Among + those are that you cannot get debug output from interrupt handlers. + So, in particularly, debug output is not a useful way to debug the + USB device controller driver. Instead, use the USB monitor with + USB debug off and USB trance on (see below). + 4. Enabling USB monitor SYSLOG output. If tracing is enabled, the USB device will save encoded trace output in in-memory buffer; if the USB monitor is enabled, that trace buffer will be periodically |