Hi and @LavanyaR To change the I2C clock frequency the changes to the clock configuration need to be done to the AIPS_PLAT_CLK following the
CSL_FINST(i2c0Regs->ICMDR, I2C_ICMDR_IRS, ENABLE); }/* setup_I2C0 */ On the document about I2C registers (spru877e) I read that the frequency of clock is calculated by this formula: I2C serial clock frequency = Prescaled module clock frequency/((ICCL+d)+(ICCH+d)...
number = of_property_count_u32_elems(np, "clock-id"); clk_data->clks = kcalloc(number, sizeof(struct clk*), GFP_KERNEL); if (!clk_data->clks) goto err_free_data; of_property_read_u32(np, "clock-frequency", &rate); /** * 操作寄存器:初始化PLL时钟频率 * ... */ for (in...
My goal is to configure the I2C clock to operate at a frequency of 400 kHz. However, when I attempt to achieve this using the internal clock source, I am only able to obtain a frequency of 322.5 kHz. To improve the accuracy of the clock frequency, I would like to utilize an external...
Hi, I need to change the frequency of the I2C frequency in runtime, is possible do that calling only Code: Untitled.c Select all i2c_param_config() without uninstall and reinstall the i2c driver? Thanks1 post • Page 1 of 1 Return to “ESP-IDF” Jump to Who is online Users ...
I modified the (attached) device tree file "imx6qdl-var-som.dtsi" (at line 317) in order to have a clock frequency of 100kHz (i also commented out the code portion of i2c1 relative to the MIPI Camera Serial Interface). The communication is working fine without any error (both SDA ...
I2C master device, detecting a clock frequency of a bus serial clock (SCL) line of the I2C master device, holding the serial data (SDA) line of the I2C master device in a clock stretch state and selecting a port based on the detected clock frequency of the SCL of the I2C master ...
* The SCL frequency would be a little higher than expected. Therefore, the solution * here is not to minus scl_high as well as scl_wait high, and the frequency will be absolutely accurate to all frequency * to some extent. */ hw->scl_low_period.scl_low_period = bus_cfg->scl_low...
* @param source_freq Source clock frequency of I2C * * @return None */ void i2c_hal_set_bus_timing(i2c_hal_context_t *hal, int scl_freq, i2c_sclk_t src_clk); void i2c_hal_set_bus_timing(i2c_hal_context_t *hal, int scl_freq, i2c_clock_source_t src_clk, int source_freq);...
Application Report SLVA695 – May 2015 Maximum Clock Frequency of I2C Bus Using Repeaters Rajan Arora, Jim Le ABSTRACT In this application report we show how to calculate the maximum clock frequency (fSCL (max)) of an I2C bus when using a repeater. The propagation delays added by the ...