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RADIO: Refactored modulation selection 

To simplify code

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
This commit is contained in:
Alberto Escolar Piedras 2024-02-13 15:36:48 +01:00
parent f3823e5bdb
commit ff2a79df21
1 changed files with 19 additions and 10 deletions
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29
src/HW_models/NHW_RADIO_utils.c
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@ -7,6 +7,7 @@
* This file includes miscellaneous utility functions used by the RADIO model
* but no significant logic *
*/
#include <stdint.h>
#include <string.h>
#include "bs_tracing.h"
#include "bs_utils.h"
@ -222,6 +223,21 @@ static uint64_t nhwra_get_address(uint logical_addr) {
return address;
}
static p2G4_modulation_t nhra_modulation_from_mode(uint32_t MODE) {
p2G4_modulation_t modulation;
if (MODE == RADIO_MODE_MODE_Ble_1Mbit) {
modulation = P2G4_MOD_BLE;
} else if (MODE == RADIO_MODE_MODE_Ble_2Mbit) {
modulation = P2G4_MOD_BLE2M;
} else if (MODE == RADIO_MODE_MODE_Ieee802154_250Kbit) {
modulation = P2G4_MOD_154_250K_DSS;
} else if ((MODE == RADIO_MODE_MODE_Ble_LR125Kbit)
|| (MODE == RADIO_MODE_MODE_Ble_LR500Kbit)) {
modulation = P2G4_MOD_BLE_CODED;
}
return modulation;
}
/**
* Prepare a Phy Rxv2 request structure
* based on the radio registers configuration.
@ -242,13 +258,14 @@ void nhwra_prep_rx_request(p2G4_rxv2_t *rx_req, p2G4_address_t *rx_addresses) {
rx_addresses[0] = nhwra_get_address(0); /* We only support RXADDRESSES == 0x01 by now */
rx_req->radio_params.modulation = nhra_modulation_from_mode(NRF_RADIO_regs.MODE);
if (NRF_RADIO_regs.MODE == RADIO_MODE_MODE_Ble_1Mbit) {
//Note that we only support BLE packet formats by now (so we ignore the configuration of the preamble and just assume it is what it needs to be)
//we rely on the Tx side error/warning being enough to warn users that we do not support other formats
preamble_length = 1; //1 byte
address_length = 4;
header_length = 2;
rx_req->radio_params.modulation = P2G4_MOD_BLE;
bits_per_us = 1;
pre_trunc = 0; //The modem can lose a lot of preamble and sync (~7us), we leave it as 0 by now to avoid a behavior change
sync_threshold = 2; //(<) we tolerate less than 2 errors in the preamble and sync word together (old number, probably does not reflect the actual RADIO performance)
@ -256,7 +273,6 @@ void nhwra_prep_rx_request(p2G4_rxv2_t *rx_req, p2G4_address_t *rx_addresses) {
preamble_length = 2; //2 bytes
address_length = 4;
header_length = 2;
rx_req->radio_params.modulation = P2G4_MOD_BLE2M;
bits_per_us = 2;
pre_trunc = 0; //The modem can lose a lot of preamble and sync (~7us), we leave it as 0 by now to avoid a behavior change
sync_threshold = 2;
@ -264,7 +280,6 @@ void nhwra_prep_rx_request(p2G4_rxv2_t *rx_req, p2G4_address_t *rx_addresses) {
preamble_length = 4;
address_length = 1;
header_length = 0;
rx_req->radio_params.modulation = P2G4_MOD_154_250K_DSS;
bits_per_us = 0.25;
pre_trunc = 104; //The modem seems to be able to sync with just 3 sybmols of the preamble == lossing 13symbols|26bits|104us
sync_threshold = 0;
@ -305,13 +320,7 @@ void nhwra_prep_rx_request(p2G4_rxv2_t *rx_req, p2G4_address_t *rx_addresses) {
*/
void nhwra_prep_tx_request(p2G4_txv2_t *tx_req, uint packet_size, bs_time_t packet_duration) {
if (NRF_RADIO_regs.MODE == RADIO_MODE_MODE_Ble_1Mbit) {
tx_req->radio_params.modulation = P2G4_MOD_BLE;
} else if (NRF_RADIO_regs.MODE == RADIO_MODE_MODE_Ble_2Mbit) {
tx_req->radio_params.modulation = P2G4_MOD_BLE2M;
} else if (NRF_RADIO_regs.MODE == RADIO_MODE_MODE_Ieee802154_250Kbit) {
tx_req->radio_params.modulation = P2G4_MOD_154_250K_DSS;
}
tx_req->radio_params.modulation = nhra_modulation_from_mode(NRF_RADIO_regs.MODE);
tx_req->phy_address = nhwra_get_address(NRF_RADIO_regs.TXADDRESS);