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HAL_ChibiOS: don't extend alloc of iomcu uart

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This commit is contained in:
Andrew Tridgell 2020-01-17 15:57:36 +11:00
parent 6e01c1c19b
commit 9554103418
1 changed files with 12 additions and 1 deletions
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13
libraries/AP_HAL_ChibiOS/UARTDriver.cpp
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@ -156,7 +156,18 @@ void UARTDriver::begin(uint32_t b, uint16_t rxS, uint16_t txS)
of data. Assumes 10 bits per byte, which is normal for most
protocols
*/
min_rx_buffer = MAX(min_rx_buffer, b/(40*10));
bool rx_size_by_baudrate = true;
#if HAL_WITH_IO_MCU
if (this == &uart_io) {
// iomcu doesn't need extra space, just speed
rx_size_by_baudrate = false;
min_tx_buffer = 0;
min_rx_buffer = 0;
}
#endif
if (rx_size_by_baudrate) {
min_rx_buffer = MAX(min_rx_buffer, b/(40*10));
}
if (sdef.is_usb) {
// give more buffer space for log download on USB