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Code Issues Wiki Activity

Added internal resistance adjustment

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This commit is contained in:
DieHertz 2017-09-09 23:17:45 +03:00
parent ab53b178ca
commit 8c4b898128
3 changed files with 6 additions and 2 deletions
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4
src/main/drivers/camera_control.c
View file

@ -63,6 +63,7 @@ PG_RESET_TEMPLATE(cameraControlConfig_t, cameraControlConfig,
.mode = CAMERA_CONTROL_MODE_HARDWARE_PWM,
.refVoltage = 330,
.keyDelayMs = 180,
.internalResistance = 470,
.ioTag = IO_TAG(CAMERA_CONTROL_PIN)
);
@ -158,13 +159,12 @@ void cameraControlProcess(uint32_t currentTimeUs)
}
}
static const int cameraPullUpResistance = 47000;
static const int buttonResistanceValues[] = { 45000, 27000, 15000, 6810, 0 };
static float calculateKeyPressVoltage(const cameraControlKey_e key)
{
const int buttonResistance = buttonResistanceValues[key];
return 1.0e-2f * cameraControlConfig()->refVoltage * buttonResistance / (cameraPullUpResistance + buttonResistance);
return 1.0e-2f * cameraControlConfig()->refVoltage * buttonResistance / (100 * cameraControlConfig()->internalResistance + buttonResistance);
}
#if defined(CAMERA_CONTROL_HARDWARE_PWM_AVAILABLE) || defined(CAMERA_CONTROL_SOFTWARE_PWM_AVAILABLE)

3
src/main/drivers/camera_control.h
View file

@ -38,8 +38,11 @@ typedef enum {
typedef struct cameraControlConfig_s {
cameraControlMode_e mode;
// measured in 10 mV steps
uint16_t refVoltage;
uint16_t keyDelayMs;
// measured 100 Ohm steps
uint16_t internalResistance;
ioTag_t ioTag;
} cameraControlConfig_t;

1
src/main/fc/settings.c
View file

@ -777,6 +777,7 @@ const clivalue_t valueTable[] = {
{ "camera_control_mode", VAR_UINT8 | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_CAMERA_CONTROL_MODE }, PG_CAMERA_CONTROL_CONFIG, offsetof(cameraControlConfig_t, mode) },
{ "camera_control_ref_voltage", VAR_UINT16 | MASTER_VALUE, .config.minmax = { 200, 400 }, PG_CAMERA_CONTROL_CONFIG, offsetof(cameraControlConfig_t, refVoltage) },
{ "camera_control_key_delay", VAR_UINT16 | MASTER_VALUE, .config.minmax = { 100, 500 }, PG_CAMERA_CONTROL_CONFIG, offsetof(cameraControlConfig_t, keyDelayMs) },
{ "camera_control_internal_resistance", VAR_UINT16 | MASTER_VALUE, .config.minmax = { 10, 1000 }, PG_CAMERA_CONTROL_CONFIG, offsetof(cameraControlConfig_t, internalResistance) },
#endif
};