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HAL_ChibiOS: use a larger TX buffer on USB

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this is needed for fast log download on vehicles with 50Hz main loop
This commit is contained in:
Andrew Tridgell 2018-08-28 08:49:37 +10:00
parent 3ae4cfbf22
commit 7897fbc3c1
1 changed files with 6 additions and 0 deletions
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6
libraries/AP_HAL_ChibiOS/UARTDriver.cpp
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@ -131,6 +131,12 @@ void UARTDriver::begin(uint32_t b, uint16_t rxS, uint16_t txS)
} }
uint16_t min_tx_buffer = 1024; uint16_t min_tx_buffer = 1024;
uint16_t min_rx_buffer = 512; uint16_t min_rx_buffer = 512;
if (sdef.is_usb) {
// give more buffer space for log download on USB
min_tx_buffer *= 4;
}
// on PX4 we have enough memory to have a larger transmit and // on PX4 we have enough memory to have a larger transmit and
// receive buffer for all ports. This means we don't get delays // receive buffer for all ports. This means we don't get delays
// while waiting to write GPS config packets // while waiting to write GPS config packets