Differences

This shows you the differences between two versions of the page.

--- test_points [2025/01/19 23:30] – lazr
+++ test_points [2025/05/13 14:41] (current) – arisotura
@@ Line 11: / Line 11: @@
 ^ Test point ^ Description ^
+| TP3        | Right speaker + |
+| TP4        | Right speaker - |
+| TP5        | ?? |
+| TP6        | ?? |
+| TP7        | Left speaker + |
+| TP8        | Left speaker - |
+| TP15       | ?? |
+| TP17       | ?? |
+| TP28       | DRC I2C - SDA |
+| TP29       | DRC I2C - SCL |
+| TP32       | LCD pin 10 |
 | TP36       | SPI - MISO |
 | TP37       | SPI - MOSI |
 | TP38       | SPI - CLK |
-| TP39       | SPI - UIC CS |
+| TP39       | SPI - UIC CS |
 | TP40       | SPI - FLASH CS |
-| TP43       | SPI FLASH reset (simple reset circuit) |
+| TP41       | UIC I2C - SDA |
+| TP42       | UIC I2C - SCL |
+| TP43       | Reset for DRC and SPI FLASH (simple reset circuit) |
+| TP44       | Expansion sense line |
 | TP48       | UIC pin 62 |
+| TP49       | ?? |
+| TP50       | UIC pin 19 |
+| TP51       | ?? |
+| TP53       | ?? |
+| TP55       | ?? |
 | TP57       | UIC pin 63 |
+| TP58       | ?? |
+| TP59       | ?? |
+| TP61       | ?? |
 | TP64       | B Button |
 | TP65       | X Button |
+| TP67       | ?? |
+| TP68       | ?? |
 | TP70       | A Button |
 | TP71       | Y Button |
-| TP85       | Power Button |
+| TP77       | FLASH WP |
+| TP79       | ?? |
+| TP85       | Power Button (UIC pin 64) |
+| TP88       | TSC /PENIRQ |
+| TP89       | Headphone jack ground |
+| TP96       | UIC SPI - TSC chipselect |
+| TP97       | UIC SPI - compass chipselect |
+| TP98       | UIC SPI - gyroscope chipselect |
+| TP99       | UIC SPI - accelerometer chipselect |
+| TP100      | UIC SPI - MISO |
+| TP101      | UIC SPI - accelerometer chipselect |
+| TP102      | UIC SPI - clock |
 | TP103      | L3 |
-| TP125      | Ground |
+| TP117      | ?? |
-| TP141      | UIC I2C - SDA |
+| TP118      | VBUS |
-| TP142      | UIC I2C - SCL |
+| TP119      | VBUS GND |
+| TP120      | ?? |
+| TP121      | VBAT |
+| TP122      | ?? |
+| TP123      | ?? |
+| TP124      | ?? |
+| TP125      | GND |
+| TP126      | ?? |
+| TP127      | ?? |
+| TP128      | GND |
+| TP129      | ?? |
+| TP131      | ?? |
+| TP132      | ?? |
+| TP133      | ?? |
+| TP134      | ?? |
+| TP135      | ?? |
+| TP136      | ?? |
+| TP137      | ?? |
+| TP138      | ?? |
+| TP139      | ?? |
+| TP150      | ?? |
+| TP151      | ?? |
+| TP152      | POWER Button |
+| TP153      | HOME Button |
+| TP161      | To Q103 on Sub-Board 1 (LED_B/Power LED..?) |
+| TP162      | LED_R (Low Battery) |
+| TP163      | LED_O (Charge) |
+| TP164      | TV Button |
+| TP200      | LCD pin 29 |
+| TP201      | LCD pin 30 |
+| TP202      | LCD pin 26 |
+| TP203      | LCD pin 27 |
+| TP204      | LCD pin 17 |
+| TP205      | LCD pin 18 |
+| TP206      | LCD pin 21 |
+| TP207      | LCD pin 20 |
+| TP208      | LCD pin 23 |
+| TP209      | LCD pin 24 |
+| TP226      | Volume slider |
 | TP227      | Vcc (2.8V - SoC, FLASH, ...) |
-| TP230      | Ground |
+| TP228      | Vcc (UIC) |
-| TP233      | UIC RST |
+| TP229      | UART boot (to serial header pad 2) |
-| TP234      | UIC SWIM |
+| TP230      | SoC pad N2 (to ground through R133) |
+| TP231      | UART1 TX (to serial header pad 3) |
+| TP232      | UART1 RX (to serial header pad 1) |
+| TP233      | UIC SWIM |
+| TP234      | UIC RST |
+| TP235      | GND |
+| TP236      | Serial header pad 4 - Vcc (2.8V) |
+| TP237      | Serial header pad 2 - UART boot |
+| TP238      | Serial header pad 3 - UART1 TX |
+| TP239      | Serial header pad 1 - UART1 RX |
+| TP500      | ?? |
+| TP501      | ?? |
+Other points of interest:
+^ Marking ^ Description ^
+| R4      | Audio amplifier clock input (16 MHz) |
+| R6      | Audio amplifier bit clock output (3.08 MHz) |
+| R7      | Audio amplifier sample clock output (48 KHz) |
+| R8      | Audio amplifier data input (audio output, I2S) |
+| R10     | Audio amplifier data output (mic input, I2S?) |
+===== Serial header =====
+The pins under the battery connector are a serial header connected to [[UART|UART1]].
+{{::gamepad_batt_pins2.png?400|}}
+^ Pin ^ Description ^
+| 1   | RX |
+| 2   | UART boot enable (short to ground to enable) |
+| 3   | TX |
+| 4   | Vcc (2.8V) |