UART » History » Revision 22
Revision 21 (Denis 'GNUtoo' Carikli, 12/17/2018 02:02 PM) → Revision 22/93 (Denis 'GNUtoo' Carikli, 12/17/2018 02:05 PM)
h1. Serial port There is an in-depth article covering several Samsung devices in the [[SamsungSerial]] page h2. Settings |_. Device |_. I/O voltage |_. ID<->GND |_. SOC TX |_. SOC RX |_. switch |_. Comments | | I9300 | 1.8V[1] | 619 kOhms[3] "619kOhms":https://git.replicant.us/replicant/kernel_samsung_smdk4412/tree/drivers/misc/max77693-muic.c#n102 | D- | D+ | | It gives a shell once Replicant has booted | | [[NexusSI902xSerial|Nexus S]] | 619K | [[NexusSI902xSerial#Hardware-setup|150 kOhm]] | | | FSA9480 | | | [[GalaxyNexusI9250SerialConsole|Galaxy Nexus]] | 619 kOhms[4] | | | | | | | [[OptimusBlackSerial|Optimus Black]] | | N/A[2] | | | DP3T | | h2. Other links * https://wiki.postmarketos.org/wiki/Serial_debugging fn1. Measured between USB GND and USB VCC fn2. Code is required to use the switch as you need to configure both the MUIC and DP3T switch fn3. See "The related driver source code":https://git.replicant.us/replicant/kernel_samsung_smdk4412/tree/drivers/misc/max77693-muic.c#n102 fn4. See the "postmarketOS wiki page on Serial debugging":https://wiki.postmarketos.org/wiki/Serial_debugging