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Add OneBit mode to HARDWARE menu. OneBit mode can help if your radio

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has a slow inverter circuit by changing the UART sampling behaviour.

* It was found that the X9D+ and X7 (maybe others) have a slow inveter
that messes up reception of fast (400,000baud) UART signals.  On the
scope the rise time of the signal is very long.
* See RM0033 24.3.3 Receiver / Selecting the proper oversampling method.
Page 631.


Also note that reducing the pull-up resistor from 10k to 1k at R82
(X9D+) / R406 (X7) will also help with the rise times.  However on the
X7 changing the resistor is not enough, OneBit is needed too.
This commit is contained in:
Hydra
2021-05-20 23:24:04 +02:00
committed by Raphael Coeffic
parent 343073cfed
commit 2f27c3c1a6
16 changed files with 92 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
radio/src/gui/common/stdlcd/radio_hardware.cpp
+28 -9
View File
@@ -168,6 +168,8 @@ enum {
ITEM_RADIO_HARDWARE_SERIAL_BAUDRATE,
#endif
ITEM_RADIO_HARDWARE_SERIAL_SAMPLE_MODE,
#if defined(BLUETOOTH)
ITEM_RADIO_HARDWARE_BLUETOOTH_MODE,
ITEM_RADIO_HARDWARE_BLUETOOTH_PAIRING_CODE,
@@ -290,6 +292,8 @@ enum {
#define MAX_BAUD_ROWS
#endif
#define SERIAL_SAMPLE_MODE_ROWS 0,
#if defined(AUX_SERIAL)
#define AUX_SERIAL_ROWS 0,
#else
@@ -321,6 +325,20 @@ void onFactoryResetConfirm(const char * result)
}
#endif
void restartExternalModule()
{
if (!IS_EXTERNAL_MODULE_ON()) {
return;
}
pauseMixerCalculations();
pausePulses();
EXTERNAL_MODULE_OFF();
RTOS_WAIT_MS(20); // 20ms so that the pulses interrupt will reinit the frame rate
telemetryProtocol = 255; // force telemetry port + module reinitialization
EXTERNAL_MODULE_ON();
resumePulses();
resumeMixerCalculations();
}
void menuRadioHardware(event_t event)
{
MENU(STR_HARDWARE, menuTabGeneral, MENU_RADIO_HARDWARE, HEADER_LINE + ITEM_RADIO_HARDWARE_MAX, {
@@ -337,6 +355,7 @@ void menuRadioHardware(event_t event)
RTC_ROW
TX_CAPACITY_MEASUREMENT_ROWS
MAX_BAUD_ROWS
SERIAL_SAMPLE_MODE_ROWS
BLUETOOTH_ROWS
EXTERNAL_ANTENNA_ROW
AUX_SERIAL_ROWS
@@ -549,20 +568,20 @@ void menuRadioHardware(event_t event)
lcdDrawNumber(HW_SETTINGS_COLUMN2, y, CROSSFIRE_BAUDRATES[g_eeGeneral.telemetryBaudrate], attr|LEFT);
if (attr) {
g_eeGeneral.telemetryBaudrate = DIM(CROSSFIRE_BAUDRATES) - 1 - checkIncDecModel(event, DIM(CROSSFIRE_BAUDRATES) - 1 - g_eeGeneral.telemetryBaudrate, 0, DIM(CROSSFIRE_BAUDRATES) - 1);
if (checkIncDec_Ret && IS_EXTERNAL_MODULE_ON()) {
pauseMixerCalculations();
pausePulses();
EXTERNAL_MODULE_OFF();
RTOS_WAIT_MS(20); // 20ms so that the pulses interrupt will reinit the frame rate
telemetryProtocol = 255; // force telemetry port + module reinitialization
EXTERNAL_MODULE_ON();
resumePulses();
resumeMixerCalculations();
if (checkIncDec_Ret) {
restartExternalModule();
}
}
break;
#endif
case ITEM_RADIO_HARDWARE_SERIAL_SAMPLE_MODE:
g_eeGeneral.uartSampleMode = editChoice(HW_SETTINGS_COLUMN2, y, STR_SAMPLE_MODE, STR_SAMPLE_MODES, g_eeGeneral.uartSampleMode, 0, UART_SAMPLE_MODE_MAX, attr, event);
if (attr && checkIncDec_Ret) {
restartExternalModule();
}
break;
#if defined(BLUETOOTH)
case ITEM_RADIO_HARDWARE_BLUETOOTH_MODE:
lcdDrawTextAlignedLeft(y, STR_BLUETOOTH);