UART » History » Version 35
Denis 'GNUtoo' Carikli, 06/08/2019 07:52 PM
same applies to i9305
1 | 1 | Denis 'GNUtoo' Carikli | h1. Serial port |
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3 | 12 | Denis 'GNUtoo' Carikli | There is an in-depth article covering several Samsung devices in the [[SamsungSerial]] page |
4 | 11 | Denis 'GNUtoo' Carikli | |
5 | 1 | Denis 'GNUtoo' Carikli | h2. Settings |
6 | 12 | Denis 'GNUtoo' Carikli | |
7 | 31 | Denis 'GNUtoo' Carikli | |_. Device and documentation |_. I/O voltage |_. ID<->GND |_. SOC TX |_. SOC RX |_. switch |_. stock bootloader settings |_. Comments | |
8 | 35 | Denis 'GNUtoo' Carikli | | I9300 |/2. 1.8V[1] |/2. 619 kOhms[3] |/2. D- |/2. D+ |/2. MAX77693[5] |/2. * speed: 115200 |
9 | 32 | Denis 'GNUtoo' Carikli | * pressing the volume-down button during boot increase verbosity |/2. It gives a shell once Replicant 6 has booted | |
10 | 31 | Denis 'GNUtoo' Carikli | | I9305 | | |
11 | 1 | Denis 'GNUtoo' Carikli | | [[GalaxyNexusI9250SerialConsole|Galaxy Nexus]] | | 619 kOhms[4] | | | | | | |
12 | 33 | Denis 'GNUtoo' Carikli | | [[NexusSI902xSerial|Nexus S]] | | 150 kOhm | | | FSA9480 | | | |
13 | 31 | Denis 'GNUtoo' Carikli | | [[OptimusBlackSerial|Optimus Black]] | | N/A[2] | | | DP3T | | | |
14 | 17 | Denis 'GNUtoo' Carikli | |
15 | 1 | Denis 'GNUtoo' Carikli | fn1. Measured between USB GND and USB VCC |
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17 | fn2. Code is required to use the switch as you need to configure both the MUIC and DP3T switch |
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19 | fn3. See "The related driver source code":https://git.replicant.us/replicant/kernel_samsung_smdk4412/tree/drivers/misc/max77693-muic.c#n102 |
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21 | fn4. See the "postmarketOS wiki page on Serial debugging":https://wiki.postmarketos.org/wiki/Serial_debugging |
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22 | 30 | Denis 'GNUtoo' Carikli | |
23 | fn5. See the "driver":https://git.replicant.us/replicant/kernel_samsung_smdk4412/tree/drivers/misc/max77693-muic.c and the "ifixit teardown":https://www.ifixit.com/Teardown/Samsung+Galaxy+S+III+Teardown/9391 |
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24 | 23 | Denis 'GNUtoo' Carikli | |
25 | h2. Interesting links |
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27 | 34 | Denis 'GNUtoo' Carikli | * There is a "page on Serial debugging":https://wiki.postmarketos.org/wiki/Serial_debugging on the postmarketOS wiki that contains information for using the serial port for many smartphones models. |
28 | * "mv-uart":https://osmocom.org/projects/mv-uart/wiki A serial port adapter with configurable voltages (and GPIOs) |