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Fix long-standing bug which prevented using UBLOX gps via DMA. 

This was noticed when updating the UBLOX code in a commit from a couple
of days ago and Dilbert66 from #cleanflight tracked it down.
This commit is contained in:
Dominic Clifton 2014-06-04 23:00:31 +01:00
parent 6a72b86ccf
commit 63e16494bb
1 changed files with 3 additions and 3 deletions
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6
src/main/drivers/serial_uart.c
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@ -68,15 +68,16 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
} else { } else {
return (serialPort_t *)s; return (serialPort_t *)s;
} }
s->txDMAEmpty = true;
// common serial initialisation code should move to serialPort::init() // common serial initialisation code should move to serialPort::init()
s->port.rxBufferHead = s->port.rxBufferTail = 0; s->port.rxBufferHead = s->port.rxBufferTail = 0;
s->port.txBufferHead = s->port.txBufferTail = 0; s->port.txBufferHead = s->port.txBufferTail = 0;
// callback for IRQ-based RX ONLY // callback works for IRQ-based RX ONLY
s->port.callback = callback; s->port.callback = callback;
s->port.mode = mode; s->port.mode = mode;
s->port.baudRate = baudRate; s->port.baudRate = baudRate;
#if 1 // FIXME use inversion on STM32F3 #if 1 // FIXME use inversion on STM32F3
s->port.inversion = SERIAL_NOT_INVERTED; s->port.inversion = SERIAL_NOT_INVERTED;
#else #else
@ -189,7 +190,6 @@ uint8_t uartTotalBytesWaiting(serialPort_t *instance)
} }
} }
// BUGBUG TODO TODO FIXME - What is the bug?
bool isUartTransmitBufferEmpty(serialPort_t *instance) bool isUartTransmitBufferEmpty(serialPort_t *instance)
{ {
uartPort_t *s = (uartPort_t *)instance; uartPort_t *s = (uartPort_t *)instance;