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Boot pull up/down resistors
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jtbeck
Joined: 24 Oct 2017, 19:05
Posts: 13
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Hi,
I am using the Rambutan UART but have to interface to 1.8V logic. I would like to simply use a resistor dividor to reduce the 2.5V transmit signal to the 1.8V however this means I am pulling down on the otherwise pulled up signal. The transmitter pin (19) is a boot H pin. Can you tell me the resistor pull up value in the module? I don't want to put a whole level translator chip in to make the level change if I don't have to. Any other suggestions?
Thanks,
JB
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| 20 Jun 2018, 11:52 |
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gedass
Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
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19 UART_TX (GPIO_10) Bootstrap L
via 10K to GND
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| 20 Jun 2018, 14:00 |
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