diff options
Diffstat (limited to 'target/radio/init.c')
| -rw-r--r-- | target/radio/init.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/target/radio/init.c b/target/radio/init.c deleted file mode 100644 index ea7c984c..00000000 --- a/target/radio/init.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * Copyright © 2009 Keith Packard <keithp@keithp.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#include "radio.h" - -/* Values from SmartRF® Studio for: - * - * Deviation: 20.507812 kHz - * Datarate: 38.360596 kBaud - * Modulation: GFSK - * RF Freq: 434.549927 MHz - * Channel: 99.975586 kHz - * Channel: 0 - * RX filter: 93.75 kHz - */ - -/* - * For 434.550MHz, the frequency value is: - * - * 434.550e6 / (24e6 / 2**16) = 1186611.2 - */ - -#define FREQ_CONTROL 1186611 - -/* - * For IF freq of 140.62kHz, the IF value is: - * - * 140.62e3 / (24e6 / 2**10) = 6 - */ - -#define IF_FREQ_CONTROL 6 - -/* - * For channel bandwidth of 93.75 kHz, the CHANBW_E and CHANBW_M values are - * - * BW = 24e6 / (8 * (4 + M) * 2 ** E) - * - * So, M = 0 and E = 3 - */ - -#define CHANBW_M 0 -#define CHANBW_E 3 - -/* - * For a symbol rate of 38360kBaud, the DRATE_E and DRATE_M values are: - * - * R = (256 + M) * 2** E * 24e6 / 2**28 - * - * So M is 163 and E is 10 - */ - -#define DRATE_E 10 -#define DRATE_M 163 - -/* - * For a channel deviation of 20.5kHz, the DEVIATION_E and DEVIATION_M values are: - * - * F = 24e6/2**17 * (8 + DEVIATION_M) * 2**DEVIATION_E - * - * So M is 6 and E is 3 - */ - -#define DEVIATION_M 6 -#define DEVIATION_E 3 - -#define PACKET_LEN 128 - -/* This are from the table for 433MHz */ - -#define RF_POWER_M30_DBM 0x12 -#define RF_POWER_M20_DBM 0x0e -#define RF_POWER_M15_DBM 0x1d -#define RF_POWER_M10_DBM 0x34 -#define RF_POWER_M5_DBM 0x2c -#define RF_POWER_0_DBM 0x60 -#define RF_POWER_5_DBM 0x84 -#define RF_POWER_7_DBM 0xc8 -#define RF_POWER_10_DBM 0xc0 - -#define RF_POWER RF_POWER_0_DBM - -static __code uint8_t radio_setup[] = { - RF_PA_TABLE7_OFF, RF_POWER, - RF_PA_TABLE6_OFF, RF_POWER, - RF_PA_TABLE5_OFF, RF_POWER, - RF_PA_TABLE4_OFF, RF_POWER, - RF_PA_TABLE3_OFF, RF_POWER, - RF_PA_TABLE2_OFF, RF_POWER, - RF_PA_TABLE1_OFF, RF_POWER, - RF_PA_TABLE0_OFF, RF_POWER, - - RF_FREQ2_OFF, FREQ_CONTROL >> 16, - RF_FREQ1_OFF, FREQ_CONTROL >> 8, - RF_FREQ0_OFF, FREQ_CONTROL >> 0, - - RF_FSCTRL1_OFF, (IF_FREQ_CONTROL << RF_FSCTRL1_FREQ_IF_SHIFT), - RF_FSCTRL0_OFF, (0 << RF_FSCTRL0_FREQOFF_SHIFT), - - RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) | - (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) | - (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)), - RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT), - RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF | - RF_MDMCFG2_MOD_FORMAT_GFSK | - RF_MDMCFG2_SYNC_MODE_15_16_THRES), - RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN | - RF_MDMCFG1_NUM_PREAMBLE_4 | - (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)), - RF_MDMCFG0_OFF, (17 << RF_MDMCFG0_CHANSPC_M_SHIFT), - - RF_CHANNR_OFF, 0, - - RF_DEVIATN_OFF, ((DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) | - (DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)), - - /* SmartRF says set LODIV_BUF_CURRENT_TX to 0 - * And, we're not using power ramping, so use PA_POWER 0 - */ - RF_FREND0_OFF, ((1 << RF_FREND0_LODIV_BUF_CURRENT_TX_SHIFT) | - (0 << RF_FREND0_PA_POWER_SHIFT)), - - RF_FREND1_OFF, ((1 << RF_FREND1_LNA_CURRENT_SHIFT) | - (1 << RF_FREND1_LNA2MIX_CURRENT_SHIFT) | - (1 << RF_FREND1_LODIV_BUF_CURRENT_RX_SHIFT) | - (2 << RF_FREND1_MIX_CURRENT_SHIFT)), - - RF_FSCAL3_OFF, 0xE9, - RF_FSCAL2_OFF, 0x0A, - RF_FSCAL1_OFF, 0x00, - RF_FSCAL0_OFF, 0x1F, - - RF_TEST2_OFF, 0x88, - RF_TEST1_OFF, 0x31, - RF_TEST0_OFF, 0x09, - - /* default sync values */ - RF_SYNC1_OFF, 0xD3, - RF_SYNC0_OFF, 0x91, - - /* max packet length */ - RF_PKTLEN_OFF, PACKET_LEN, - - RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)| - PKTCTRL1_APPEND_STATUS| - PKTCTRL1_ADR_CHK_NONE), - RF_PKTCTRL0_OFF, (RF_PKTCTRL0_WHITE_DATA| - RF_PKTCTRL0_PKT_FORMAT_NORMAL| - RF_PKTCTRL0_CRC_EN| - RF_PKTCTRL0_LENGTH_CONFIG_FIXED), - RF_ADDR_OFF, 0x00, - RF_MCSM2_OFF, (RF_MCSM2_RX_TIME_END_OF_PACKET), - RF_MCSM1_OFF, (RF_MCSM1_CCA_MODE_RSSI_BELOW_UNLESS_RECEIVING| - RF_MCSM1_RXOFF_MODE_IDLE| - RF_MCSM1_TXOFF_MODE_IDLE), - RF_MCSM0_OFF, (RF_MCSM0_FS_AUTOCAL_FROM_IDLE| - RF_MCSM0_MAGIC_3| - RF_MCSM0_CLOSE_IN_RX_18DB), - RF_FOCCFG_OFF, (RF_FOCCFG_FOC_PRE_K_3K, - RF_FOCCFG_FOC_POST_K_PRE_K, - RF_FOCCFG_FOC_LIMIT_BW_OVER_4), - RF_BSCFG_OFF, (RF_BSCFG_BS_PRE_K_2K| - RF_BSCFG_BS_PRE_KP_3KP| - RF_BSCFG_BS_POST_KI_PRE_KI| - RF_BSCFG_BS_POST_KP_PRE_KP| - RF_BSCFG_BS_LIMIT_0), - RF_AGCCTRL2_OFF, 0x43, - RF_AGCCTRL1_OFF, 0x40, - RF_AGCCTRL0_OFF, 0x91, - - RF_IOCFG2_OFF, 0x00, - RF_IOCFG1_OFF, 0x00, - RF_IOCFG0_OFF, 0x00, -}; - -void -radio_init(void) { - uint8_t i; - for (i = 0; i < sizeof (radio_setup); i += 2) - RF[radio_setup[i]] = radio_setup[i+1]; -} - -#define nop() _asm nop _endasm; - -void -delay (unsigned char n) -{ - unsigned char i = 0; - - n <<= 1; - while (--n != 0) - while (--i != 0) - nop(); -} |