Hi kent sun
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
I'd like to suggest you use the PIO0_10 and PIO0_11as the I2C_SCL, I2C_SDA, respectively.
The PIO0_10 and PIO0_11 can be programmed to support a true open-drain, in other word, removing the external resistors are available.
Please give a try.
Have a great day,
TIC
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去掉上拉电阻后,IIC不能正常工作。
kent
sun
136-1184-5798
发件人: jeremyzhou发送时间: 2019-03-05 10:16收件人: kent sun主题: Re: - Re: LPC844 低功耗
NXP Community
Re: LPC844 低功耗
reply from jeremyzhou in LPC Microcontrollers - View the full discussion
Hi kent sunThank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
I'd like to suggest you use the PIO0_10 and PIO0_11as the I2C_SCL, I2C_SDA, respectively.
The PIO0_10 and PIO0_11 can be programmed to support a true open-drain, in other word, removing the external resistors are available.
Please give a try.
Have a great day,
TIC
Hi kent sun,
感谢回复!
对的,确实需要上拉电阻,我原来的回复有出错,抱歉。
在LPC844进入低功耗模式后,在上拉电阻上的电量损耗,无法被完全去除,因为这个“回路”始终存在,但可以尝试适当增大上拉电阻来降低损耗。
Have a great day,
TIC
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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