pins.spiFrequency(1000000); Parameters frequency: anumberto set as the frequency for the SPI bus clock. This value is the number of clock changes per second (Hz). Example Set the SPI clock frequency to1megahertz. pins.spiFrequency(1000000); ...
functionspiFrequency(frequency:number); Parameters frequency: anumberto set as the frequency for the SPI bus clock. This value is the number of clock changes per second (Hz). Example Set the SPI clock frequency to1megahertz. 1000000spi frequencyon start ...
我们以Firefly 的SPI demo 分析下dts中对spi的描述: /* Firefly SPI demo */ &spi1 { spi_demo: spi-demo@00{ status = "okay"; compatible = "firefly,rk3399-spi"; reg = <0x00>; spi-max-frequency = <48000000>; /* rk3399 driver support SPI_CPOL | SPI_CPHA | SPI_CS_HIGH */ //sp...
1000000spi frequency JavaScriptfunction pins.spiFrequency(frequency: number): void; Pythondef pins.spi_frequency(frequency: number): None Parameters frequency: a number to set as the frequency for the SPI bus clock. This value is the number of clock changes per second (Hz)....
In our product is using DRV8311P for BLDC driving, but the SOC can not communicate with DRV8311P. the SOC SPI clock is 25 MHz, Does the frequency is too high tocommunicate with DRV8311P? BR! Bruce Please refer to 69 page of datasheet, ...
此外将clock IP核的时钟输出2输出的100MHz,连接到AXI_Quad SPI软核的外部时钟输入引脚上,此时AXI_Quad SPI软核与FLASH的工作时钟是100MHz/Frequency Ratio = 50MHz。 GPIO IP核 添加2个GPIO核,修改ip核名称位axi_led、axi_key;一个用于LED输出,一个用于按键Key输出,分别修改IP核,设置位全输出和全输入、GPIO ...
* HSE Frequency(Hz) = 25000000 * PLL_M = 5 * PLL_N = 160 * PLL_P = 2 * PLL_Q = 4 * PLL_R = 2 * VDD(V) = 3.3 * Flash Latency(WS) = 4 * @param None * @retval None */ static void SystemClock_Config(void)
spi-max-frequency:此处设置 spi 使用的最高频率。wk2xxx 芯片 spi 最高支持 10000000。 reset_gpio:该选项在 SPI 驱动当中不是必须的。该 gpio 和 WK2xxx 芯片的复位引脚相连,用于控制芯片的复位。根据实际使用的 gpio 去修改。 irq_gpio: 该 gpio 和 wk2xxx 芯片的 IRQ 引脚相连,用于接收 wk2xxx 芯片...
* clk: Clock Frequency (Hz)* fnc: Function Code (1 - Erase, 2 - Program, 3 - V...
#define SPI_FREQUENCY 27000000 // SPI频率 #define SPI_TOUCH_FREQUENCY 2500000 // 字面意思 触控的SPI频率 // ### 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25