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Code Issues Releases Activity

A bug fixed that caused carrier frequency to go way off when setting the modem to one of the Tx-carrier/Tx-spectrum test modes (and back).

Browse Source 
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2799 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
pip 2011-02-16 12:32:44 +00:00 committed by pip
parent 993a4a7c5f
commit 60e7665aec
3 changed files with 91 additions and 45 deletions
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15
flight/PipXtreme/api_config.c
View File

@ -306,15 +306,24 @@ void apiconfig_processInputPacket(void *buf, uint16_t len)
saved_settings_save(); // save the new settings
ph_set_remote_serial_number(0, 0);
rfm22_setTxNormal();
// ******
ph_set_remote_serial_number(0, 0); // stop the packet handler trying to communicate
PIOS_COM_ChangeBaud(PIOS_COM_SERIAL, saved_settings.serial_baudrate);
// rfm22_setTxNormal();
rfm22_init(rfm22_minFrequency(), rfm22_maxFrequency(), rfm22_freqHopSize());
rfm22_setFreqCalibration(saved_settings.rf_xtal_cap);
ph_setNominalCarrierFrequency(saved_settings.frequency_Hz);
ph_setDatarate(saved_settings.max_rf_bandwidth);
ph_setTxPower(saved_settings.max_tx_power);
ph_set_remote_encryption(0, saved_settings.aes_enable, (const void *)saved_settings.aes_key);
ph_set_remote_serial_number(0, saved_settings.destination_id);
switch (saved_settings.mode)
{
case MODE_NORMAL: // normal 2-way packet mode
@ -339,6 +348,8 @@ void apiconfig_processInputPacket(void *buf, uint16_t len)
saved_settings.mode = MODE_NORMAL;
break;
}
// ******
}
break;

5
flight/PipXtreme/inc/rfm22b.h
View File

@ -572,6 +572,9 @@ enum { RX_WAIT_PREAMBLE_MODE = 0,
// ************************************
uint32_t rfm22_minFrequency(void);
uint32_t rfm22_maxFrequency(void);
void rfm22_setNominalCarrierFrequency(uint32_t frequency_hz);
uint32_t rfm22_getNominalCarrierFrequency(void);
@ -580,6 +583,8 @@ float rfm22_getFrequencyStepSize(void);
void rfm22_setFreqHopChannel(uint8_t channel);
uint8_t rfm22_freqHopChannel(void);
uint32_t rfm22_freqHopSize(void);
void rfm22_setDatarate(uint32_t datarate_bps);
uint32_t rfm22_getDatarate(void);

116
flight/PipXtreme/rfm22b.c
View File

@ -419,6 +419,15 @@ uint8_t rfm22_getTxPower(void)
// ************************************
uint32_t rfm22_minFrequency(void)
{
return lower_carrier_frequency_limit_Hz;
}
uint32_t rfm22_maxFrequency(void)
{
return upper_carrier_frequency_limit_Hz;
}
void rfm22_setNominalCarrierFrequency(uint32_t frequency_hz)
{
@ -496,6 +505,11 @@ uint8_t rfm22_freqHopChannel(void)
return frequency_hop_channel;
}
uint32_t rfm22_freqHopSize(void)
{ // return the frequency hopping step size
return ((uint32_t)frequency_hop_step_size_reg * 10000);
}
// ************************************
// radio datarate about 19200 Baud
// radio frequency deviation 45kHz
@ -1612,8 +1626,7 @@ void rfm22_process(void)
if (power_on_reset)
{ // we need to re-initialize the RF module - it told us it's reset itself
uint32_t current_freq = carrier_frequency_hz; // fetch current rf nominal frequency
uint32_t freq_hop_step_size = (uint32_t)frequency_hop_step_size_reg * 10000; // fetch the frequency hoppping step size
rfm22_init(lower_carrier_frequency_limit_Hz, upper_carrier_frequency_limit_Hz, freq_hop_step_size);
rfm22_init(lower_carrier_frequency_limit_Hz, upper_carrier_frequency_limit_Hz, rfm22_freqHopSize());
rfm22_setNominalCarrierFrequency(current_freq); // restore the nominal carrier frequency
return;
}
@ -1700,9 +1713,9 @@ void rfm22_process(void)
}
// ************************************
// Initialize this hardware layer module and the rf module
// reset the RF module
int rfm22_init(uint32_t min_frequency_hz, uint32_t max_frequency_hz, uint32_t freq_hop_step_size)
int rfm22_resetModule(void)
{
initialized = false;
@ -1712,10 +1725,6 @@ int rfm22_init(uint32_t min_frequency_hz, uint32_t max_frequency_hz, uint32_t fr
power_on_reset = false;
#if defined(RFM22_DEBUG)
DEBUG_PRINTF("\r\nRF init\r\n");
#endif
// ****************
#if defined(RFM22_EXT_INT_USE)
@ -1811,6 +1820,59 @@ int rfm22_init(uint32_t min_frequency_hz, uint32_t max_frequency_hz, uint32_t fr
tx_pwr = 0;
// ****************
// read the RF chip ID bytes
device_type = rfm22_read(RFM22_DEVICE_TYPE) & RFM22_DT_MASK; // read the device type
#if defined(RFM22_DEBUG)
DEBUG_PRINTF("rf device type: %d\r\n", device_type);
#endif
if (device_type != 0x08)
return -1; // incorrect RF module type
device_version = rfm22_read(RFM22_DEVICE_VERSION) & RFM22_DV_MASK; // read the device version
#if defined(RFM22_DEBUG)
DEBUG_PRINTF("rf device version: %d\r\n", device_version);
#endif
// if (device_version != RFM22_DEVICE_VERSION_V2) // V2
// return -2; // incorrect RF module version
// if (device_version != RFM22_DEVICE_VERSION_A0) // A0
// return -2; // incorrect RF module version
if (device_version != RFM22_DEVICE_VERSION_B1) // B1
return -2; // incorrect RF module version
// ****************
// disable Low Duty Cycle Mode
rfm22_write(RFM22_op_and_func_ctrl2, 0x00);
rfm22_write(RFM22_op_and_func_ctrl1, RFM22_opfc1_xton); // READY mode
// rfm22_write(RFM22_op_and_func_ctrl1, RFM22_opfc1_pllon); // TUNE mode
// choose the 3 GPIO pin functions
rfm22_write(RFM22_io_port_config, RFM22_io_port_default); // GPIO port use default value
rfm22_write(RFM22_gpio0_config, RFM22_gpio0_config_drv3 | RFM22_gpio0_config_txstate); // GPIO0 = TX State (to control RF Switch)
rfm22_write(RFM22_gpio1_config, RFM22_gpio1_config_drv3 | RFM22_gpio1_config_rxstate); // GPIO1 = RX State (to control RF Switch)
rfm22_write(RFM22_gpio2_config, RFM22_gpio2_config_drv3 | RFM22_gpio2_config_cca); // GPIO2 = Clear Channel Assessment
// ****************
return 0; // OK
}
// ************************************
// Initialise this hardware layer module and the rf module
int rfm22_init(uint32_t min_frequency_hz, uint32_t max_frequency_hz, uint32_t freq_hop_step_size)
{
#if defined(RFM22_DEBUG)
DEBUG_PRINTF("\r\nRF init\r\n");
#endif
int res = rfm22_resetModule();
if (res < 0)
return res;
// ****************
// set the minimum and maximum carrier frequency allowed
@ -1840,32 +1902,8 @@ int rfm22_init(uint32_t min_frequency_hz, uint32_t max_frequency_hz, uint32_t fr
frequency_hop_step_size_reg = freq_hop_step_size;
// ****************
// read the RF chip ID bytes
device_type = rfm22_read(RFM22_DEVICE_TYPE) & RFM22_DT_MASK; // read the device type
#if defined(RFM22_DEBUG)
DEBUG_PRINTF("rf device type: %d\r\n", device_type);
#endif
if (device_type != 0x08)
return -1; // incorrect RF module type
device_version = rfm22_read(RFM22_DEVICE_VERSION) & RFM22_DV_MASK; // read the device version
#if defined(RFM22_DEBUG)
DEBUG_PRINTF("rf device version: %d\r\n", device_version);
#endif
// if (device_version != RFM22_DEVICE_VERSION_V2) // V2
// return -2; // incorrect RF module version
// if (device_version != RFM22_DEVICE_VERSION_A0) // A0
// return -2; // incorrect RF module version
if (device_version != RFM22_DEVICE_VERSION_B1) // B1
return -2; // incorrect RF module version
// ****************
// disable Low Duty Cycle Mode
rfm22_write(RFM22_op_and_func_ctrl2, 0x00);
// calibrate our RF module to be exactly on frequency .. different for every module
osc_load_cap = OSC_LOAD_CAP; // default
/* if (serial_number_crc32 == 0x176C1EC6) osc_load_cap = OSC_LOAD_CAP_1;
else
@ -1876,16 +1914,8 @@ int rfm22_init(uint32_t min_frequency_hz, uint32_t max_frequency_hz, uint32_t fr
if (serial_number_crc32 == 0x994ECD31) osc_load_cap = OSC_LOAD_CAP_4;
*/ rfm22_write(RFM22_xtal_osc_load_cap, osc_load_cap);
rfm22_write(RFM22_op_and_func_ctrl1, RFM22_opfc1_xton); // READY mode
// rfm22_write(RFM22_op_and_func_ctrl1, RFM22_opfc1_pllon); // TUNE mode
// choose the 3 GPIO pin functions
rfm22_write(RFM22_io_port_config, RFM22_io_port_default); // GPIO port use default value
rfm22_write(RFM22_gpio0_config, RFM22_gpio0_config_drv3 | RFM22_gpio0_config_txstate); // GPIO0 = TX State (to control RF Switch)
rfm22_write(RFM22_gpio1_config, RFM22_gpio1_config_drv3 | RFM22_gpio1_config_rxstate); // GPIO1 = RX State (to control RF Switch)
rfm22_write(RFM22_gpio2_config, RFM22_gpio2_config_drv3 | RFM22_gpio2_config_cca); // GPIO2 = Clear Channel Assessment
// set the RF datarate
// ****************
// set the RF datarate
rfm22_setDatarate(RFM22_DEFAULT_RF_DATARATE);
// Enable data whitening