Mirrors_Framework/PX4-Autopilot
1
0
Fork 0
mirror of https://github.com/PX4/PX4-Autopilot.git synced 2026-05-24 23:55:24 +08:00
Code Issues Actions 7 Packages Projects Releases Wiki Activity

platforms/nuttx: px4io_serial always cleanup DMA before next bus exchange

Browse Source 
- this really shouldn't be necessary, but worst case it's harmless and
much better than potentially falling out of the sky
This commit is contained in:
Daniel Agar
2022-01-19 16:22:11 -05:00
parent 0dea56f88b
commit 446729566d
3 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
platforms/nuttx/src/px4/stm/stm32f4/px4io_serial/px4io_serial.cpp
+3
View File
@@ -225,6 +225,9 @@ ArchPX4IOSerial::ioctl(unsigned operation, unsigned &arg)
int
ArchPX4IOSerial::_bus_exchange(IOPacket *_packet)
{
// to be paranoid ensure all previous DMA transfers are cleared
_abort_dma();
_current_packet = _packet;
/* clear any lingering error status */
platforms/nuttx/src/px4/stm/stm32f7/px4io_serial/px4io_serial.cpp
+3
View File
@@ -237,6 +237,9 @@ ArchPX4IOSerial::ioctl(unsigned operation, unsigned &arg)
int
ArchPX4IOSerial::_bus_exchange(IOPacket *_packet)
{
// to be paranoid ensure all previous DMA transfers are cleared
_abort_dma();
_current_packet = _packet;
/* clear data that may be in the RDR and clear overrun error: */
platforms/nuttx/src/px4/stm/stm32h7/px4io_serial/px4io_serial.cpp
+3
View File
@@ -275,6 +275,9 @@ ArchPX4IOSerial::ioctl(unsigned operation, unsigned &arg)
int
ArchPX4IOSerial::_bus_exchange(IOPacket *_packet)
{
// to be paranoid ensure all previous DMA transfers are cleared
_abort_dma();
_current_packet = _packet;
/* clear data that may be in the RDR and clear overrun error: */