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updated setRfPower function. It now sets the PADRV bits on the AU1846

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morgan
2015-07-02 14:15:34 -07:00
parent 81fc8a6566
commit 0bfd349b64
3 changed files with 8 additions and 12 deletions
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13
HamShield.cpp
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@@ -384,7 +384,7 @@ void HamShield::setTX(bool on_noff){
setGpioLow(5); // remember that RX and TX are active low
// then turn on VREG (PWM output)
// then apply RF signal
setRfPower(100); // figure out a good default number (or don't set a default)
setRfPower(9); // figure out a good default number (or don't set a default)
}
// todo: make sure gpio are set correctly after this
@@ -943,19 +943,12 @@ void HamShield::setRfPower(uint8_t pwr) {
// (see RF6886 datasheet)
// 30 is 0.5V, which is ~min loop reference voltage
// 127 is 2.5V, which is ~max loop ref voltage
int max_pwr = 255; //167; // 167 is 3.3*255/5 - 1;
int max_pwr = 15; //167; // 167 is 3.3*255/5 - 1;
if (pwr > max_pwr) {
pwr = max_pwr;
}
// using open loop reference voltage into Vreg1/2
/*int max_pwr = 78; // 78 = 1.58*255/5 - 1
if (pwr > max_pwr) {
pwr = max_pwr;
}*/
// using loop ref voltage as specified in RF6886 datasheet
// analogWrite(pwr_control_pin, pwr);
I2Cdev::writeBitsW(devAddr, A1846S_PABIAS_REG, A1846S_PADRV_BIT, A1846S_PADRV_LENGTH, pwr);
}