TI中文支持网Part Number:TPS546D24A
Hi we want to use BMC to dynamically change the VR output to 1.8V , but the voltage output became 1.4V by reading the meter.
The command as below:
Pls kindly help to check the command as below,
i2cset -y 2 0x1c 0x24 0x0466 w ; set VOUT_max to 2.2V
i2cset -y 2 0x1c 0x40 0x03ac w ; set OV_FAULT limit to 2.2V
i2cset -y 2 0x1c 0x42 0x0356 w ; set OV_WARN limit to 2.0V
i2cset -y 2 0x1c 0x25 0x034d w ; set VOUT_MARGIN_HIGH to 1.98V
i2cset -y 2 0x1c 0x21 0x039a w ; set VOUT to 1.8V
i2cset -y 2 0x1c 0x26 0x02b4 w ; set VOUT_MARGIN_LOW to 1.62V
i2cset -y 2 0x1c 0x2b 0x02cd w; set VOUT_min limit to 1.4V
i2cset -y 2 0x1c 0x44 0x0280 w ; set UV_FAULT limit to 1.5V
i2cset -y 2 0x1c 0x43 0x02ab w ; set UV_WARN limit to 1.6V
i2cset -y 2 0x1c 0x03; clear faults
i2cget -y 2 0x1c 0x8b w ; read VOUT , should be close to 0x039a
i2cget -y 2 0x1c 0x8c w ; read IOUT
If having any problem, pls share me.
TKS!
Johnsin Tao：
Hi
官网上找不到关于输出电压设置的程序说明，建议你在美国E2E上要一下例程，那边应该有这个芯片产品线的工程师应该有的： https://e2e.ti.com/
