nrf51822 2.4G ESB使用問題

alixrri · 发表于 2017-7-5 09:59:00

在使用ESB 2.4G 接收端上一直毫無進展

但是在使用官方範例 examples\peripheral\radio\receiver

確實是可以進行2.4G通訊以下分別為 ESB 及 2.4G radio 代碼

payload length 皆為 20  使用pipe0

void radio_configure()
{
// Radio config
NRF_RADIO->TXPOWER = (RADIO_TXPOWER_TXPOWER_0dBm << RADIO_TXPOWER_TXPOWER_Pos);
NRF_RADIO->FREQUENCY = 7UL;  // Frequency bin 7, 2407MHz
NRF_RADIO->MODE    = (RADIO_MODE_MODE_Nrf_2Mbit << RADIO_MODE_MODE_Pos);

// Radio address config
NRF_RADIO->PREFIX0 =
      ((uint32_t)swap_bits(0x05) << 24) // Prefix byte of address 3 converted to nRF24L series format
   | ((uint32_t)swap_bits(0x05) << 16) // Prefix byte of address 2 converted to nRF24L series format
   | ((uint32_t)swap_bits(0x05) << 8)  // Prefix byte of address 1 converted to nRF24L series format
   | ((uint32_t)swap_bits(0x05) << 0); // Prefix byte of address 0 converted to nRF24L series format

NRF_RADIO->PREFIX1 =
      ((uint32_t)swap_bits(0x05) << 24) // Prefix byte of address 7 converted to nRF24L series format
   | ((uint32_t)swap_bits(0x05) << 16) // Prefix byte of address 6 converted to nRF24L series format
   | ((uint32_t)swap_bits(0x05) << 0); // Prefix byte of address 4 converted to nRF24L series format

NRF_RADIO->BASE0 = bytewise_bitswap(0x04030201UL);  // Base address for prefix 0 converted to nRF24L series format
NRF_RADIO->BASE1 = bytewise_bitswap(0x04030201UL);  // Base address for prefix 1-7 converted to nRF24L series format

NRF_RADIO->TXADDRESS = 0x00UL;  // Set device address 0 to use when transmitting
NRF_RADIO->RXADDRESSES = 0x01UL;  // Enable device address 0 to use to select which addresses to receive

// Packet configuration
NRF_RADIO->PCNF0 = (PACKET_S1_FIELD_SIZE    << RADIO_PCNF0_S1LEN_Pos) |
                     (PACKET_S0_FIELD_SIZE    << RADIO_PCNF0_S0LEN_Pos) |
                     (PACKET_LENGTH_FIELD_SIZE << RADIO_PCNF0_LFLEN_Pos); //lint !e845 "The right argument to operator '|' is certain to be 0"

// Packet configuration
NRF_RADIO->PCNF1 = (RADIO_PCNF1_WHITEEN_Disabled << RADIO_PCNF1_WHITEEN_Pos) |
                     (RADIO_PCNF1_ENDIAN_Big    << RADIO_PCNF1_ENDIAN_Pos)  |
                     (PACKET_BASE_ADDRESS_LENGTH << RADIO_PCNF1_BALEN_Pos) |
                     (PACKET_STATIC_LENGTH       << RADIO_PCNF1_STATLEN_Pos) |
                     (PACKET_PAYLOAD_MAXSIZE    << RADIO_PCNF1_MAXLEN_Pos); //lint !e845 "The right argument to operator '|' is certain to be 0"

// CRC Config
NRF_RADIO->CRCCNF = (RADIO_CRCCNF_LEN_Two << RADIO_CRCCNF_LEN_Pos); // Number of checksum bits
if ((NRF_RADIO->CRCCNF & RADIO_CRCCNF_LEN_Msk) == (RADIO_CRCCNF_LEN_Two << RADIO_CRCCNF_LEN_Pos))
{
      NRF_RADIO->CRCINIT = 0xFFFFUL; // Initial value
      NRF_RADIO->CRCPOLY = 0x11021UL;  // CRC poly: x^16 + x^12^x^5 + 1
}
else if ((NRF_RADIO->CRCCNF & RADIO_CRCCNF_LEN_Msk) == (RADIO_CRCCNF_LEN_One << RADIO_CRCCNF_LEN_Pos))
{
      NRF_RADIO->CRCINIT = 0xFFUL; // Initial value
      NRF_RADIO->CRCPOLY = 0x107UL;  // CRC poly: x^8 + x^2^x^1 + 1
}
}

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

#define NRF_ESB_ADDR_DEFAULT
{
.base_addr_p0    = {0x04, 0x03, 0x02, 0x01},
.base_addr_p1    = {0x04, 0x03, 0x02, 0x01},
.pipe_prefixes    = { 0x05, 0x05, 0x05, 0x05,0x05,0x05, 0x05, 0x05},
.addr_length       = 5,
.num_pipes       = 8,
.rf_channel       = 7,
.rx_pipes_enabled = 0x01
}

#define NRF_ESB_DEFAULT_CONFIG {.protocol             = NRF_ESB_PROTOCOL_ESB_DPL,
                              .mode                      = NRF_ESB_MODE_PTX,
                              .event_handler       = 0,
                              .bitrate                   = NRF_ESB_BITRATE_2MBPS,
                              .crc                         = NRF_ESB_CRC_16BIT,
                              .tx_output_power    = NRF_ESB_TX_POWER_0DBM,
                              .retransmit_delay    = 250,
                              .retransmit_count    = 1,
                              .tx_mode                = NRF_ESB_TXMODE_AUTO,
                              .radio_irq_priority    = 1,
                              .event_irq_priority = 2,
                              .payload_length    = 20,
                              .selective_auto_ack  = false
}

uint32_t esb_init( void )
{
uint32_t err_code;
uint8_t base_addr_0[4] = {0x04, 0x03, 0x02, 0x01};
uint8_t base_addr_1[4] = {0x04, 0x03, 0x02, 0x01};
uint8_t addr_prefix[8] = {0x05, 0x05, 0x05, 0x05,0x05,0x05, 0x05, 0x05};
nrf_esb_config_t nrf_esb_config       = NRF_ESB_DEFAULT_CONFIG;
nrf_esb_config.payload_length       = 20;
nrf_esb_config.protocol                   = NRF_ESB_PROTOCOL_ESB_DPL;
nrf_esb_config.bitrate                      = NRF_ESB_BITRATE_2MBPS;
nrf_esb_config.mode                      = NRF_ESB_MODE_PRX;
nrf_esb_config.event_handler          = nrf_esb_event_handler;
nrf_esb_config.selective_auto_ack    = false;

err_code = nrf_esb_init(&nrf_esb_config);
VERIFY_SUCCESS(err_code);

err_code = nrf_esb_set_base_address_0(base_addr_0);
VERIFY_SUCCESS(err_code);

err_code = nrf_esb_set_base_address_1(base_addr_1);
VERIFY_SUCCESS(err_code);

err_code = nrf_esb_set_prefixes(addr_prefix, 8);
VERIFY_SUCCESS(err_code);

return err_code;
}

還請各位大大幫忙看一下ESB是哪裡出問題

alixrri · 发表于 2017-7-5 13:31:45

經過多次測試後發現問題出在NRF_ESB_PROTOCOL_ESB_DPL
預設狀態是動態地址更改為NRF_ESB_PROTOCOL_ESB 後可正常通訊

Jin · 发表于 2017-11-22 09:28:32

这两个有什么区别呢，能不能同时使用，可以同时连接多少个设备？

		自动登录	找回密码
密码			立即注册