868M / 915M Narrow band S2LP transceiver RF module
868M /915M Narrow band S2LP transceiver RF module
N560AS module based ST S2LP transceiver, designed for 433M, 868M, 915Mhz narrowband. Up to 16dBm output power and down to -126dBm sensitivity.
560AS module leads all pins out of S2LP for secondary development.
S2LP Description
The S2-LP is a high performance ultra-low power RF transceiver, intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands at 433, 512, 868 and 920 MHz, but can also be programmed to operate at other additional frequencies in the 413-479 MHz, 452-527 MHz, 826-958 MHz, 904-1055 MHz bands. The S2-LP supports different modulation schemes: 2(G)FSK, 4(G)FSK, OOK and ASK. The air data rate is programmable from 0.1 to 500 kbps.
The S2-LP can be used in systems with channel spacing down to 1 kHz enabling the narrow band operations.
N560AS shows an RF link budget higher than 140 dB for long communication ranges and meets the regulatory requirements applicable in territories worldwide, including Europe, Japan, China and the USA.
S2LP features
Frequency bands:
413-479 MHz (S2-LPQTR)
452-527 MHz (S2-LPCBQTR)
826-958 MHz (S2-LPQTR)
904-1055 MHz (S2-LPCBQTR)
Modulation schemes:
2(G)FSK, 4(G)FSK
OOK, ASK
Air data rate from 0.1 to 500 kbps
Ultra-low power consumption:
7 mA RX
10 mA TX @ +10 dBm
Excellent performance of receiver sensitivity: down to -130 dBm
Excellent receiver selectivity and blocking
Programmable RF output power up to +16 dBm
Programmable RX digital filter
Programmable channel spacing
Fast start-up and frequency synthesizer settling time
Automatic frequency offset compensation, AGC and symbol timing recovery
More than 145 dB RF link budget
Battery indicator and low battery detector
RX and TX 128 bytes FIFO buffers
4-wire SPI interface
Automatic packet acknowledgment and retransmission
Embedded timeout protocol engine
Excellent receiver selectivity (> 80 dB @ 2 MHz)
ST companion integrated balun/filter chips are available
Antenna diversity algorithm
Fully integrated ultra-low power RC oscillator
Wake-up driven by internal timer or external event
Digital real time RSSI
Flexible packet length with dynamic payload length
Programmable preamble and SYNC word quality filtering and detection
Embedded CSMA/CA engine based on listen-before-talk systems
IEEE 802.15.4g hardware packet support with whitening, FEC, CRC and dual SYNC word detection
Wireless M-BUS supported
Enables operations in the SIGFOX™ and MONARCH networks
Suitable to build systems targeting:
Europe: ETSI EN 300 220, category 1.5 natively compliant, ETSI EN 303 131
US: FCC part 15 and part 90
Japan: ARIB STD T67, T108
China: SRRC
Operating temperature range: -40 °C to +105 °C
ISM Frequency supported by 560AS transceiver module
433M band: 433 MHz to 435 MHz (China, EU)
470M band: 470 MHz to 510 MHz (China)
868M band: 868 MHz to 870 MHz (China, EU, USA)
888 MHz to 889 MHz (Australia)
915M band: 902 MHz to 928 MHz (USA)
N560AS Parameters
| RF Interface | Parameter | Introduce |
| Frequency | 433M, 868M, 915MHz | Support ISM |
| Output Power | +16dBm | The maximum power 40mW |
| Sensitivity | -126dBm | 1.2kbps |
| Symbol Rate | 0.3-500kbps | Software programming control |
| Deviation | +/-1kHz | Antenna interface |
| Distance | 2000m | In clear and open environment, the antenna gain is 3 dBi, the height above the ground is 2.5 meters, and the air speed is 1.2 kbps. |
| Hardware parameters | Value | Remarks |
| Size | 20 x 17 x 3mm | - |
| Antenna Interface | IPEX, RF pin | - |
| Communication Interface | SPI | Software programming |
| Package | SMD | - |
| Electrical Parameters | Minimum | Typical | Maximum | Remarks |
| Volt | 1.8V | 3.3V | 3.6V | |
| Emission Current | 40mA | Instantaneous power consumption | ||
| Receiving Current | 12mA | - | ||
| Sleep current | 1uA | Software programming control | ||
| Working Temperature | -40℃ | 85℃ | - |
N560AS Pinout Description
| Pin Number | function |
| 1 | SDO |
| 2 | SDI |
| 3 | SCK |
| 4 | CSN |
| 5 | GPIO0 |
| 6 | GPIO1 |
| 7 | GPIO2 |
| 8 | GPIO3 |
| 9 | GND |
| 10 | VDD |
| 11 | SDN |
| 12 | VTCXO |
| 13 | GND |
| 14 | GND |
| 15 | RF |
N560AS Layout Information
N560AS soft code
TX code
SDK_BasicGeneric_A.c
24 /* Includes ------------------------------------------------------------------*/
25 #include "SDK_EVAL_Config.h"
26 #include "S2LP_Config.h"
27 #include "SDK_Configuration_Common.h"
28 #include "st_main.h"
29
30 #define USE_VCOM
31
62 SRadioInitxRadioInit = {
63 BASE_FREQUENCY,
64 MODULATION_SELECT,
65 DATARATE,
66 FREQ_DEVIATION,
67 BANDWIDTH
68 };
69
70
74 PktBasicInitxBasicInit={
75 PREAMBLE_LENGTH,
76 SYNC_LENGTH,
77 SYNC_WORD,
78 VARIABLE_LENGTH,
79 EXTENDED_LENGTH_FIELD,
80 CRC_MODE,
81 EN_ADDRESS,
82 EN_FEC,
83 EN_WHITENING
84 };
85
86
90 SGpioInitxGpioIRQ={
91 S2LP_GPIO_3,
92 S2LP_GPIO_MODE_DIGITAL_OUTPUT_LP,
93 S2LP_GPIO_DIG_OUT_IRQ
94 };
95
96
100 volatile FlagStatus xTxDoneFlag = RESET;
101
102
106 S2LPIrqsxIrqStatus;
107
108
112 uint8_t vectcTxBuff[20]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
113
117 #define IRQ_PREEMPTION_PRIORITY 0x03
118
135 static uint32_t M2S_GPIO_PIN_IRQ;
136
137 #if (defined(BLUENRG2_DEVICE) || defined(BLUENRG1_DEVICE))
138 void HAL_GPIO_EXTI_Callback(uint32_t GPIO_Pin)
139 #else
140 void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
141 #endif
142 {
143 if(GPIO_Pin==M2S_GPIO_PIN_IRQ)
144 {
145 /* Get the IRQ status */
146 S2LPGpioIrqGetStatus(&xIrqStatus);
147
148 /* Check the SPIRIT TX_DATA_SENT IRQ flag */
149 if(xIrqStatus.IRQ_TX_DATA_SENT)
150 {
151 /* set the tx_done_flag to manage the event in the main() */
152 xTxDoneFlag = SET;
153
154 /* toggle LED2 */
155 SdkEvalLedToggle(LED2);
156 }
157 }
158 }
159
160
166 int main (void)
167 {
168 ST_Init();
169
170 xRadioInit.lFrequencyBase = xRadioInit.lFrequencyBase;
171
172 /* uC IRQ config */
173 S2LP_Middleware_GpioInit(M2S_GPIO_3,M2S_MODE_EXTI_IN);
174 M2S_GPIO_PIN_IRQ = S2LP_Middleware_GpioGetPin(M2S_GPIO_3);
175
176 /* S2LP IRQ config */
177 S2LPGpioInit(&xGpioIRQ);
178
179 /* uC IRQ enable */
180 S2LP_Middleware_GpioInterruptCmd(M2S_GPIO_3,IRQ_PREEMPTION_PRIORITY,0,ENABLE);
181
182 /* S2LP Radio config */
183 S2LPRadioInit(&xRadioInit);
184
185 /* S2LP Radio set power */
186 S2LPRadioSetMaxPALevel(S_DISABLE);
187
188 if(!S2LPManagementGetRangeExtender())
189 {
190 /* If we haven't an external PA, use the library function */
191 S2LPRadioSetPALeveldBm(7,POWER_DBM);
192 }
193 else
194 {
195 /* in case we are using a board with external PA, the S2LPRadioSetPALeveldBm will be not functioning because
196 the output power is affected by the amplification of this external component.
197 Set the raw register. */
198 uint8_t paLevelValue = 0x25; /* For example, this value will give about 19dBm on a STEVAL FKI-915V1 */
199 S2LPSpiWriteRegisters(PA_POWER8_ADDR, 1, &paLevelValue);
200 }
201 S2LPRadioSetPALevelMaxIndex(7);
202
203 /* S2LP Packet config */
204 S2LPPktBasicInit(&xBasicInit);
205
206 /* S2LP IRQs enable */
207 S2LPGpioIrqDeInit(NULL);
208 S2LPGpioIrqConfig(TX_DATA_SENT , S_ENABLE);
209
210 /* payload length config */
211 S2LPPktBasicSetPayloadLength(20);
212
213 /* IRQ registers blanking */
214 S2LPGpioIrqClearStatus();
215
216 /* infinite loop */
217 while (1){
218 #ifdef USE_VCOM
219 printf("A data to transmit: [");
220
221 for(uint8_t i=0 ; i<20 ; i++)
222 printf("%d ", vectcTxBuff[i]);
223 printf("]\n\r");
224 #endif
225
226 /* fit the TX FIFO */
227 S2LPCmdStrobeFlushTxFifo();
228 S2LPSpiWriteFifo(20, vectcTxBuff);
229
230 /* send the TX command */
231 S2LPCmdStrobeTx();
232
233 /* wait for TX done */
234 while(!xTxDoneFlag);
235 xTxDoneFlag = RESET;
236
237 /* pause between two transmissions */
238 SdkDelayMs(500);
239 }
240 }
241
242 #ifdef USE_FULL_ASSERT
243
250 void assert_failed(uint8_t* file, uint32_t line)
251 {
252 /* User can add his own implementation to report the file name and line number */
253 printf("Wrong parameters value: file %s on line %d\r\n", file, line);
254
255 /* Infinite loop */
256 while (1)
257 {
258 }
259 }
260 #endif
261
262
280 /******************* (C) COPYRIGHT 2019 STMicroelectronics *****END OF FILE****/
RX code
SDK_BasicGeneric_B.c
24 /* Includes ------------------------------------------------------------------*/
25 #include "SDK_EVAL_Config.h"
26 #include "S2LP_Config.h"
27 #include "SDK_Configuration_Common.h"
28 #include "st_main.h"
29
30 #define USE_VCOM
31
32
63 SRadioInitxRadioInit = {
64 BASE_FREQUENCY,
65 MODULATION_SELECT,
66 DATARATE,
67 FREQ_DEVIATION,
68 BANDWIDTH
69 };
70
71
75 PktBasicInitxBasicInit={
76 PREAMBLE_LENGTH,
77 SYNC_LENGTH,
78 SYNC_WORD,
79 VARIABLE_LENGTH,
80 EXTENDED_LENGTH_FIELD,
81 CRC_MODE,
82 EN_ADDRESS,
83 EN_FEC,
84 EN_WHITENING
85 };
86
87
91 SGpioInitxGpioIRQ={
92 S2LP_GPIO_3,
93 S2LP_GPIO_MODE_DIGITAL_OUTPUT_LP,
94 S2LP_GPIO_DIG_OUT_IRQ
95 };
96
97
101 S2LPIrqsxIrqStatus;
102
103
107 uint8_t vectcRxBuff[128], cRxData;
108
112 #define IRQ_PREEMPTION_PRIORITY 0x03
113
130 static uint32_t M2S_GPIO_PIN_IRQ;
131
132 #if (defined(BLUENRG2_DEVICE) || defined(BLUENRG1_DEVICE))
133 void HAL_GPIO_EXTI_Callback(uint32_t GPIO_Pin)
134 #else
135 void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
136 #endif
137 {
138 if(GPIO_Pin==M2S_GPIO_PIN_IRQ)
139 {
140 /* Get the IRQ status */
141 S2LPGpioIrqGetStatus(&xIrqStatus);
142
143 /* Check the S2LP RX_DATA_DISC IRQ flag */
144 if(xIrqStatus.IRQ_RX_DATA_DISC)
145 {
146 /* toggle LED2 */
147 SdkEvalLedToggle(LED2);
148
149 #ifdef USE_VCOM
150 printf("DATA DISCARDED\n\r");
151 #endif
152
153 /* RX command - to ensure the device will be ready for the next reception */
154 S2LPCmdStrobeRx();
155 }
156
157 /* Check the S2LP RX_DATA_READY IRQ flag */
158 if(xIrqStatus.IRQ_RX_DATA_READY)
159 {
160 /* Get the RX FIFO size */
161 cRxData = S2LPFifoReadNumberBytesRxFifo();
162
163 /* Read the RX FIFO */
164 S2LPSpiReadFifo(cRxData, vectcRxBuff);
165
166 /* Flush the RX FIFO */
167 S2LPCmdStrobeFlushRxFifo();
168
169 /* A simple way to check if the received data sequence is correct (in this case LED5 will toggle) */
170 {
171 SBool xCorrect=S_TRUE;
172
173 for(uint8_t i=0 ; i<cRxData ; i++)
174 if(vectcRxBuff[i] != i+1)
175 xCorrect=S_FALSE;
176
177 if(xCorrect) {
178 /* toggle LED2 */
179 SdkEvalLedToggle(LED2);
180 #ifdef USE_VCOM
181 printf("DATA CORRECT, RSSI: %d dBm\r\n",S2LPRadioGetRssidBm());
182 #endif
183 }
184 }
185 /* RX command - to ensure the device will be ready for the next reception */
186 S2LPCmdStrobeRx();
187
188 #ifdef USE_VCOM
189 /* print the received data */
190 printf("B data received: [");
191 for(uint8_t i=0 ; i<cRxData ; i++)
192 printf("%d ", vectcRxBuff[i]);
193 printf("]\r\n");
194 #endif
195 }
196 }
197 }
198
199
205 int main (void)
206 {
207 ST_Init();
208
209 /* if the board has eeprom, we can compensate the offset calling S2LPManagementGetOffset
210 (if eeprom is not present this fcn will return 0) */
211 xRadioInit.lFrequencyBase = xRadioInit.lFrequencyBase;
212
213 /* uC IRQ config */
214 S2LP_Middleware_GpioInit(M2S_GPIO_3,M2S_MODE_EXTI_IN);
215 M2S_GPIO_PIN_IRQ=S2LP_Middleware_GpioGetPin(M2S_GPIO_3);
216
217 /* S2LP IRQ config */
218 S2LPGpioInit(&xGpioIRQ);
219
220 /* uC IRQ enable */
221 S2LP_Middleware_GpioInterruptCmd(M2S_GPIO_3,IRQ_PREEMPTION_PRIORITY,0,ENABLE);
222
223 /* S2LP Radio config */
224 S2LPRadioInit(&xRadioInit);
225
226 /* S2LP Packet config */
227 S2LPPktBasicInit(&xBasicInit);
228
229 /* S2LP IRQs enable */
230 S2LPGpioIrqDeInit(&xIrqStatus);
231 S2LPGpioIrqConfig(RX_DATA_DISC,S_ENABLE);
232 S2LPGpioIrqConfig(RX_DATA_READY,S_ENABLE);
233
234 /* payload length config */
235 S2LPPktBasicSetPayloadLength(20);
236
237 /* RX timeout config */
238 S2LPTimerSetRxTimerUs(700000);
239
240 /* IRQ registers blanking */
241 S2LPGpioIrqClearStatus();
242
243 /* RX command */
244 S2LPCmdStrobeRx();
245
246 /* infinite loop */
247 while (1){/* - */}
248
249 }
250
251
252 #ifdef USE_FULL_ASSERT
253
260 void assert_failed(uint8_t* file, uint32_t line)
261 {
262 /* User can add his own implementation to report the file name and line number */
263 printf("Wrong parameters value: file %s on line %d\r\n", file, line);
264
265 /* Infinite loop */
266 while (1)
267 {
268 }
269 }
270 #endif
271
272
290 /******************* (C) COPYRIGHT 2019 STMicroelectronics *****END OF FILE****/