Dear Pro,
I currently run a application with B-L072Z-LRWAN1 Discovery kit.
I use sample code STM32CubeExpansion_SFOX_V1.1.0/Sgfx_push_button. In this project have:
SIGFOX_API_send_frame(ul_msg, ul_size, dl_msg, nbTxRepeatFlag, SFX_FALSE);
PRINTF("----Respose----");
for (i=0; i < 8; i ++){
PRINTF("%02X ", dl_msg[i]) ;
}Document for this function:
sfx_error_t SIGFOX_API_send_frame ( sfx_u8 * customer_data,
sfx_u8 customer_data_length,
sfx_u8 * customer_response,
sfx_u8 tx_repeat,
sfx_bool initiate_downlink_flag
)
Send a standard SIGFOX frame with customer payload. Customer payload cannot exceed 12 Bytes.
If initiate_downlink_flag is set, the frame will be send as many times as (tx_repeat + 1). tx repeat cannot exceed 2.
If initiate_downlink_flag is unset, the tx_repeat is forced to 2.
In downlink :
Send uplink frames (1 to 3)
Receive downlink frame
Send out of band frame (Voltage, temperature and RSSI)
In uplink :
Send uplink frames (3)
Parameters
[in] sfx_u8 *customer_data Data to transmit
[in] sfx_u8 customer_data_length Data length in Bytes
[out] sfx_u8 *customer_response Returned 8 Bytes data in case of downlink
[in] sfx_u8 tx_repeat Number of repetition (value between 1 and 3 included - for downlink only)
[in] sfx_bool initiate_downlink_flag Flag to initiate a downlink response
Return values
The sfx_error_t is composed of the following :When i send message to Sigfox Network Emulator. SNE can read message and show it into web. I already set callbacks function in SNE as bellow:
As I know, with config of callback. When SNE receive message from KIT, SNE will send downlink message that has content {time}0102{rssi} to KIT. But when I print dl_msg, just has 00 value like that:
wakeup OK
devId=FEDCBA98
devPac=0000000000000000
send data....00 01 02 03 04 05 06 07 08 09 10 11 ----Respose----00 00 00 00 00 00 00 00 done