RIOT-OS/RIOT
RIOT-OS/RIOT
1
0
Fork 0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
Code Releases Activity

cc2420: Add RSSI dBm conversion

Browse Source
This commit is contained in:
Koen Zandberg 2017-08-30 21:09:21 +02:00
parent 11e147736d
commit 047b8172ae
3 changed files with 20 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/cc2420/cc2420.c
View File

@ -197,8 +197,8 @@ int cc2420_rx(cc2420_t *dev, uint8_t *buf, size_t max_len, void *info)
DEBUG("cc2420: recv: reading %i byte of the packet\n", (int)len);
cc2420_fifo_read(dev, buf, len);
uint8_t rssi;
cc2420_fifo_read(dev, &rssi, 1);
int8_t rssi;
cc2420_fifo_read(dev, (uint8_t*)&rssi, 1);
DEBUG("cc2420: recv: RSSI is %i\n", (int)rssi);
/* fetch and check if CRC_OK bit (MSB) is set */
@ -208,6 +208,11 @@ int cc2420_rx(cc2420_t *dev, uint8_t *buf, size_t max_len, void *info)
/* drop the corrupted frame from the RXFIFO */
len = 0;
}
if (info != NULL) {
netdev_ieee802154_rx_info_t *radio_info = info;
radio_info->rssi = CC2420_RSSI_OFFSET + rssi;
radio_info->lqi = crc_corr & CC2420_CRCCOR_COR_MASK;
}
/* finally flush the FIFO */
cc2420_strobe(dev, CC2420_STROBE_FLUSHRX);

8
drivers/cc2420/include/cc2420_registers.h
View File

@ -190,6 +190,14 @@ enum {
#define CC2420_MDMCTRL0_PREAMBLE_3B (0x0002)
/** @} */
/**
* @brief CRC/Correlation bit masks
* @{
*/
#define CC2420_CRCCOR_CRC_MASK (0x80)
#define CC2420_CRCCOR_COR_MASK (0x7F)
/** @} */
/**
* @name Transmit control register bitfields
* @{

5
drivers/include/cc2420.h
View File

@ -61,6 +61,11 @@ extern "C" {
#define CC2420_TXPOWER_DEFAULT (IEEE802154_DEFAULT_TXPOWER)
/** @} */
/**
* @brief RSSI offset
*/
#define CC2420_RSSI_OFFSET (-45)
/**
* @brief A couple of return values used in this driver
*/