Introduction: The Inter-Integrated Circuit (I2C) bus is a two wire serial interface originally developed by the Phillips Corporation for use in consumer products. It is a bi-directional bus that is ea
But what is this clock for? Or in general what is "Peripheral FPGA Clocks" for? Also I expected only two pins that could be connected to the FPGA, namely SCL and SDA but there are 4 Pins in total that are generated from Qsys: hps_0_i2c0_out_data : out std_lo...
(SDL) pin. The SDL transfers and receives data. Meanwhile, the SCL functions as a clock. I2C is a protocol that offers support to slow devices. Here, the master can transmit and receive data from the slave. The master controls the clock bus. However, in some cases, slaves can suppress...
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One more question.I used the i2c driver example in the sdk. An example of dma_transfer in the i2c folder. I compiled and then downloaded nxp JN5189 development board, in this example, i2c0 and i2c1 can communicate normally, its configuration is as follows: I2C connected to I2C0 SCL P...
While the SPI selects the slave through CS, an increase in the number of slaves will not result in an increase in GPIO. Each extra slave will require its own GPIO. It can, of course, be added by using a decoder. Make multi-slave control a reality. The IIC is sampled on the SCL ...
So for example GPIO17 is the same as BCM17. Certain GPIO pins also have alternate functions that allow them to interface with different kinds of devices that use the I2C, SPI or UART protocols. For example GPIO3 and GPIO 4 are also SDA and SCL I2C pins used to connect devices using ...
Is there a similar product that can interface 3 signals instead of the 2 (SCL, SDA)? Or is there any other idea how to create interrupt at the master CPU when an event occurs at the I2C device? 2 年多前 Clemens Ladisch2 年多前 ...
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A real time clock, or RTC, is a digital clock which function is to keep track of time even when power is turned off or a device is placed in low power mode.