60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
#include "nrf24.h"
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void nrf24l01_init() {
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rcu_periph_clock_enable(RCU_GPIOA);
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rcu_periph_clock_enable(RCU_GPIOB);
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rcu_periph_clock_enable(RCU_AF);
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rcu_periph_clock_enable(RCU_SPI0);
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uint32_t spi = SPI0;
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/* spi GPIO config:SCK/PB13, MISO/PB14, MOSI/PB15 */
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//gpio_init(GPIOB, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_13 | GPIO_PIN_15);
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//gpio_init(GPIOB, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_14);
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/* spi GPIO config:SCK/PA5, MISO/PA6, MOSI/PA7 */
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gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_5 | GPIO_PIN_7);
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gpio_init(GPIOA, GPIO_MODE_IN_FLOATING, GPIO_OSPEED_50MHZ, GPIO_PIN_6);
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nrf_hal_init_t nhi;
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nhi.spi = spi;
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nhi.ce_port = GPIOA;
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nhi.ce_pin = GPIO_PIN_3;
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nhi.csn_port= GPIOA;
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nhi.csn_pin = GPIO_PIN_4;
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gpio_init(nhi.ce_port, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, nhi.ce_pin);
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gpio_init(nhi.csn_port, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, nhi.csn_pin);
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gpio_bit_set(nhi.ce_port, nhi.ce_pin);
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gpio_bit_set(nhi.csn_port, nhi.csn_pin);
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nrf_init(&nhi);
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spi_parameter_struct spi_init_struct;
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/* deinitilize SPI and the parameters */
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spi_i2s_deinit(spi);
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spi_struct_para_init(&spi_init_struct);
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/* spi parameter config */
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spi_init_struct.trans_mode = SPI_TRANSMODE_FULLDUPLEX;
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spi_init_struct.device_mode = SPI_MASTER;
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spi_init_struct.frame_size = SPI_FRAMESIZE_8BIT;
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spi_init_struct.clock_polarity_phase = SPI_CK_PL_LOW_PH_1EDGE;
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spi_init_struct.nss = SPI_NSS_SOFT;
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spi_init_struct.prescale = SPI_PSC_16;
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spi_init_struct.endian = SPI_ENDIAN_MSB;
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spi_init(spi, &spi_init_struct);
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//spi_i2s_data_frame_format_config(spi, SPI_FRAMESIZE_8BIT);
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//spi_crc_polynomial_set(spi,7);
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//spi_crc_on(spi);
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//spi_ti_mode_disable(spi); // use motorola mode
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//spi_nssp_mode_enable(spi);
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spi_enable(spi);
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}
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