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Cc1101 tx (#262)

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* wip tx
* hold gd0 down
* doorbell example
This commit is contained in:
coreglitch 2020-12-14 22:59:13 +03:00 committed by GitHub
parent c1c069e95f
commit 56c1142af6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 80 additions and 27 deletions
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107
applications/cc1101-workaround/cc1101-workaround.cpp
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@ -117,18 +117,6 @@ int16_t rx_rssi(CC1101* cc1101, const FreqConfig* config) {
return rssi_dBm;
}
void tx(CC1101* cc1101, const FreqConfig* config) {
uint32_t freq_reg = config->band->base_freq * 1e6 / (F_OSC / 65536);
cc1101->SetFreq((freq_reg >> 16) & 0xFF, (freq_reg >> 8) & 0xFF, (freq_reg)&0xFF);
cc1101->SetChannel(config->channel);
cc1101->SetTransmit();
}
void idle(CC1101* cc1101) {
cc1101->SpiStrobe(CC1101_SIDLE);
}
void flp_config(CC1101* cc1101) {
// cc1101->SpiWriteReg(CC1101_FSCTRL1, 0x06); //IF frequency
// cc1101->SpiWriteReg(CC1101_FSCTRL0, 0x00); //frequency offset before synthesizer
@ -259,6 +247,34 @@ void async_config(CC1101* cc1101) {
cc1101->SpiWriteReg(CC1101_FSCAL0, 0x1F); //Frequency Synthesizer Calibration
}
void tx_config(CC1101* cc1101) {
// cc1101->SpiWriteReg(CC1101_IOCFG2,0x0B); //GDO2 Output Pin Configuration
// cc1101->SpiWriteReg(CC1101_IOCFG0,0x0C); //GDO0 Output Pin Configuration
cc1101->SpiSetRegValue(CC1101_IOCFG0, 13, 5, 0); // GDO0 Output Pin Configuration
cc1101->SpiWriteReg(CC1101_FIFOTHR, 0x47); //RX FIFO and TX FIFO Thresholds
cc1101->SpiWriteReg(CC1101_PKTCTRL0, 0x32); //Packet Automation Control
cc1101->SpiWriteReg(CC1101_FSCTRL1, 0x06); //Frequency Synthesizer Control
cc1101->SpiWriteReg(CC1101_FREQ2, 0x10); //Frequency Control Word, High Byte
cc1101->SpiWriteReg(CC1101_FREQ1, 0xB0); //Frequency Control Word, Middle Byte
cc1101->SpiWriteReg(CC1101_FREQ0, 0x71); //Frequency Control Word, Low Byte
cc1101->SpiWriteReg(CC1101_MDMCFG4, 0x6A); //Modem Configuration
cc1101->SpiWriteReg(CC1101_MDMCFG3, 0x2E); //Modem Configuration
cc1101->SpiWriteReg(CC1101_MDMCFG2, 0x30); //Modem Configuration
cc1101->SpiWriteReg(CC1101_DEVIATN, 0x15); //Modem Deviation Setting
cc1101->SpiWriteReg(CC1101_MCSM0, 0x18); //Main Radio Control State Machine Configuration
cc1101->SpiWriteReg(CC1101_FOCCFG, 0x16); //Frequency Offset Compensation Configuration
cc1101->SpiWriteReg(CC1101_WORCTRL, 0xFB); //Wake On Radio Control
cc1101->SpiWriteReg(CC1101_FREND0, 0x11); //Front End TX Configuration
cc1101->SpiWriteReg(CC1101_FSCAL3, 0xE9); //Frequency Synthesizer Calibration
cc1101->SpiWriteReg(CC1101_FSCAL2, 0x2A); //Frequency Synthesizer Calibration
cc1101->SpiWriteReg(CC1101_FSCAL1, 0x00); //Frequency Synthesizer Calibration
cc1101->SpiWriteReg(CC1101_FSCAL0, 0x1F); //Frequency Synthesizer Calibration
cc1101->SpiWriteReg(CC1101_TEST2, 0x81); //Various Test Settings
cc1101->SpiWriteReg(CC1101_TEST1, 0x35); //Various Test Settings
cc1101->SpiWriteReg(CC1101_TEST0, 0x09); //Various Test Settings
}
// f = (f_osc/65536) * (FREQ + CHAN * (256 + CH_SP_M) * 2^(CH_SP_E - 2))
// FREQ = f / (f_osc/65536)
// CHAN = 0
@ -429,6 +445,8 @@ extern "C" void cc1101_workaround(void* p) {
printf("[cc1101] creating device\n");
GpioPin cs_pin = {CC1101_CS_GPIO_Port, CC1101_CS_Pin};
gpio_init(&cc1101_g0_gpio, GpioModeInput);
// TODO open record
GpioPin* cs_pin_record = &cs_pin;
CC1101 cc1101(cs_pin_record);
@ -445,21 +463,20 @@ extern "C" void cc1101_workaround(void* p) {
cc1101.SpiStrobe(CC1101_SIDLE);
// flp_config(&cc1101);
async_config(&cc1101);
setup_freq(&cc1101, &FREQ_LIST[4]);
enable_cc1101_irq();
// async_config(&cc1101);
tx_config(&cc1101);
// setup_freq(&cc1101, &FREQ_LIST[4]);
// enable_cc1101_irq();
printf("init ok\n");
// === Transparent mode ===
// TODO open record
GpioPin* led_record = (GpioPin*)&led_gpio[1];
// configure pin
gpio_init(led_record, GpioModeOutputOpenDrain);
const int16_t RSSI_THRESHOLD = -89;
const int16_t RSSI_THRESHOLD = -60;
// setup_freq(&cc1101, &FREQ_LIST[1]);
@ -467,7 +484,7 @@ extern "C" void cc1101_workaround(void* p) {
AppEvent event;
while(1) {
osStatus_t event_status = osMessageQueueGet(event_queue, &event, NULL, 20);
osStatus_t event_status = osMessageQueueGet(event_queue, &event, NULL, 100);
State* state = (State*)acquire_mutex_block(&state_mutex);
if(event_status == osOK) {
@ -509,26 +526,62 @@ extern "C" void cc1101_workaround(void* p) {
}
}
} else {
if(!state->need_cc1101_conf && state->mode == ModeRx) {
state->last_rssi = rx_rssi(&cc1101, &FREQ_LIST[state->active_freq]);
}
}
if(state->need_cc1101_conf) {
if(state->mode == ModeRx) {
cc1101.SpiStrobe(CC1101_SIDLE);
gpio_init(&cc1101_g0_gpio, GpioModeInput);
setup_freq(&cc1101, &FREQ_LIST[state->active_freq]);
cc1101.SetReceive();
state->last_rssi = rx_rssi(&cc1101, &FREQ_LIST[state->active_freq]);
// idle(&cc1101);
} else if(state->mode == ModeTx) {
tx(&cc1101, &FREQ_LIST[state->active_freq]);
cc1101.SpiStrobe(CC1101_SIDLE);
setup_freq(&cc1101, &FREQ_LIST[state->active_freq]);
cc1101.SetTransmit();
gpio_init(&cc1101_g0_gpio, GpioModeOutputPushPull);
gpio_write(&cc1101_g0_gpio, false);
}
state->need_cc1101_conf = false;
}
gpio_write(
led_record,
(state->last_rssi > RSSI_THRESHOLD && !state->need_cc1101_conf) ? false : true);
if(!state->need_cc1101_conf && state->mode == ModeRx) {
state->last_rssi = rx_rssi(&cc1101, &FREQ_LIST[state->active_freq]);
gpio_write(led_record, state->last_rssi < RSSI_THRESHOLD);
} else if(!state->need_cc1101_conf && state->mode == ModeTx) {
/*
const uint8_t data = 0xA5;
for(uint8_t i = 0; i < 8; i++) {
gpio_write(&cc1101_g0_gpio, (data & (1 << i)) > 0);
osDelay(1);
}
gpio_write(&cc1101_g0_gpio, false);
*/
const uint16_t HALF_PERIOD = 500;
for(uint8_t n = 0; n < 4; n++) {
for(uint8_t i = 0; i < 4; i++) {
gpio_write(&cc1101_g0_gpio, true);
delay_us(3 * HALF_PERIOD);
gpio_write(&cc1101_g0_gpio, false);
delay_us(HALF_PERIOD);
}
for(uint8_t i = 0; i < 40; i++) {
gpio_write(&cc1101_g0_gpio, true);
delay_us(HALF_PERIOD);
gpio_write(&cc1101_g0_gpio, false);
delay_us(HALF_PERIOD);
}
}
}
release_mutex(&state_mutex, state);
widget_update(widget);