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Revert "SmartAudio Lite compatibility: Send 0x00 bit(s) (always) even with Soft Serial."

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AJ Christensen 2019-03-25 23:48:00 +13:00 committed by GitHub
parent 6f93d526b7
commit 1dc0842557
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 2 deletions
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10
src/main/io/vtx_smartaudio.c
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@ -450,7 +450,14 @@ static void saReceiveFrame(uint8_t c)
static void saSendFrame(uint8_t *buf, int len)
{
if (!IS_RC_MODE_ACTIVE(BOXVTXCONTROLDISABLE)) {
serialWrite(smartAudioSerialPort, 0x00); // Ensure line is low regardless of hardware pull-down capabilities.
switch (smartAudioSerialPort->identifier) {
case SERIAL_PORT_SOFTSERIAL1:
case SERIAL_PORT_SOFTSERIAL2:
break;
default:
serialWrite(smartAudioSerialPort, 0x00); // Generate 1st start bit
break;
}
for (int i = 0 ; i < len ; i++) {
serialWrite(smartAudioSerialPort, buf[i]);
@ -461,7 +468,6 @@ static void saSendFrame(uint8_t *buf, int len)
sa_outstanding = SA_CMD_NONE;
}
serialWrite(smartAudioSerialPort, 0x00); // Pull the line low again after sending frame.
sa_lastTransmissionMs = millis();
}