AOM-3841 SPI CN1&SPI)CN2&CN2 I2C——I2C/SPI - Revision history

Xingxing.li at 06:10, 19 March 2026

2026-03-19T06:10:47Z

Xingxing.li at 03:37, 19 March 2026

2026-03-19T03:37:08Z

Xingxing.li at 03:29, 19 March 2026

2026-03-19T03:29:23Z

Xingxing.li at 03:21, 19 March 2026

2026-03-19T03:21:11Z

Xingxing.li: Created page with " == '''I2C Pin Header''' == '''AOM-3841 has two I2C-PIN-Header channels.''' === '''CN2_I2C''' === {| border="1" cellpadding="1" cellspacing="1" style="width: 409px;" |- | c..."

2026-03-19T02:24:47Z

Created page with " == '''I2C Pin Header''' == '''AOM-3841 has two I2C-PIN-Header channels.''' === '''CN2_I2C''' === {| border="1" cellpadding="1" cellspacing="1" style="width: 409px;" |- | c..."

New page

== '''I2C Pin Header''' ==

'''AOM-3841 has two I2C-PIN-Header channels.'''

=== '''CN2_I2C''' ===

{| border="1" cellpadding="1" cellspacing="1" style="width: 409px;"
|-
| colspan="4" style="width: 399px;" | '''CN2 CN2 Connector Pin Definition'''
|-
| style="width: 60px;" | '''Pin'''
| style="width: 85px;" | '''Signal'''
| style="width: 38px;" | '''I/O'''
| style="width: 203px;" | '''Description'''
|-
| style="width: 60px;" | 1
| style="width: 85px;" | GND
| style="width: 38px;" |  
| style="width: 203px;" | Ground
|-
| style="width: 60px;" | 2
| style="width: 85px;" | I2C0_DATA
| style="width: 38px;" | I/O
| style="width: 203px;" | I2C0 Data
|-
| style="width: 60px;" | 3
| style="width: 85px;" | I2C0_CLK
| style="width: 38px;" | I
| style="width: 203px;" | I2C0 clock input from host.
|-
| style="width: 60px;" | 4
| style="width: 85px;" | +V1.8
| style="width: 38px;" |  
| style="width: 203px;" | 1.8V Source
|}

=== '''Number''' ===

{| border="1" cellpadding="1" cellspacing="1"
|-
| colspan="4" | '''I2C-PIN-Header'''
|-
| '''I2C Number'''
| '''Bus Number'''
| '''I2C Address'''
| '''AOM-DB3500 Number'''
|-
| I2C0
| 0
| 0x53
| CN2
|-
| I2C1
| 7
| 0x57
| CN4
|}
<pre># i2cdetect -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- 0c -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- 53 -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- 71 -- -- -- -- -- --
# i2cdetect -y 7
# i2ctransfer -y 7 w4@0x53 0x1f 0xf0 0x22 0x33
# i2ctransfer -y 7 w2@0x53 0x1f 0xf0 r2
0x22 0x33 
</pre>

 

@@ Line 105: / Line 105: @@
 </pre>
-[[File:AOM-3841 I2C function.png]]
+[[File:AOM-3841 I2C function.png|RTENOTITLE]]
 <pre># i2cdetect -y 7
 # i2ctransfer -y 7 w4@0x57 0x1f 0xf0 0x22 0x33
@@ Line 111: / Line 111: @@
 x22 0x33</pre>
-[[File:AOM-3841 I2C function1.png]]
+[[File:AOM-3841 I2C function1.png|RTENOTITLE]]
 == '''SPI PIN Header''' ==
-AOM-3841 has two SPI-PIN-Header channels. SPIs on AOM-DB3500 have multi�functions, change to SPI PIN Header.
+AOM-3841 has two SPI-PIN-Header channels. SPIs on AOM-DB3500 have multifunctions, change to SPI PIN Header.
 === '''SPI_CN1''' ===
@@ Line 221: / Line 221: @@
 |}
 === '''Jumper Setting：''' ===
@@ Line 243: / Line 244: @@
 | style="width: 354px;" | SPI1 is switched to SPI_CN1
 |}
 === '''<span style="font-size: 13px;">Using EG70 Test Board to read SPI flash.</span>''' ===
@@ Line 258: / Line 258: @@
 # /tools/test/adv/spi/spi_test.sh 1</pre>
-[[File:AOM-3841 SPI function1.png]]
+[[File:AOM-3841 SPI function1.png|RTENOTITLE]]

@@ Line 244: / Line 244: @@
 |}
-=== <br/> <span style="font-size: 13px;">Using EG70 Test Board to read SPI flash.</span> ===
 Test one SPI port alternatively:
@@ Line 250: / Line 251: @@
 Test two SPI ports at the same time:
-<pre># cat /proc/mtd | grep -c mtd11</pre>
+<pre># cat /proc/mtd | grep -c mtd11
-RK Tool&nbsp; Test：
+=== '''RK Tool&nbsp; Test：''' ===
 <pre># /tools/test/adv/spi/spi_test.sh 0
 # /tools/test/adv/spi/spi_test.sh 1</pre>

@@ Line 220: / Line 220: @@
 | SPI Chip Select Input
 |}
 === '''Jumper Setting：''' ===
 === <br/> <span style="font-size: 13px;">Using EG70 Test Board to read SPI flash.</span> ===

@@ Line 34: / Line 34: @@
 | style="width: 38px;" | &nbsp;
 | style="width: 203px;" | 1.8V Source
 |}
@@ Line 70: / Line 102: @@
 # i2ctransfer -y 7 w4@0x53 0x1f 0xf0 0x22 0x33
 # i2ctransfer -y 7 w2@0x53 0x1f 0xf0 r2
-x22 0x33&nbsp;
+x22 0x33
 </pre>
-&nbsp;
+[[File:AOM-3841 I2C function.png]]