Artesyn COMX-P2020 BSP User Guide (July 2014) - Manual (Page 58)

U-boot Deployment
COMX-P2020 BSP User Guide (6806800L84B) 58
5.4.6 Temperature Sensor ( LM75CIM-3 )
The LM75 is a temperature sensor.
1. Chip Probe:
LM75's I2C address is 90h(8-bit). It can be accessed at I2C#2.
=> i2c dev 1
Setting bus to 1
=> i2c probe
Valid chip addresses: 1B 33 48 53 68
Excluded chip addresses:
2. Get current temperature:
The command: "sensor get" can be used to show current temperature:
=> i2c dev 1
Setting bus to 1
=> i2c probe
Valid chip addresses: 1B 33 48 53 68
Excluded chip addresses:
5.4.7 DDR3 SPD
1. Chip Probe:
The DDR3 SPD address is A6h(8-bit), and it can be accessed at I2C#2.
Chip Probe:
The DDR3 SPD address is A6h(8-bit), and it can be accessed at I2C#2.
2. Read SPD
The SPD information can be read out with the following commands:
=> i2c md 53 0.1 100
0000: 92 10 0b 08 02 11 00 09 0b 52 01 08 0c 00 34 00 .........R....4.
0010: 6c 78 6c 30 6c 11 20 8c 70 03 3c 3c 00 f0 83 05 lxl0l. .p.<<....
0020: 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0030: 00 00 00 00 00 00 00 00 00 00 00 00 0f 11 1f 00 ................
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0070: 00 00 00 00 00 01 94 01 09 50 06 a8 11 6d fd 64 .........P...m.d
0080: 53 47 35 37 32 35 36 38 45 4d 52 30 36 39 53 32 SG572568EMR069S2
0090: 53 45 00 00 80 ce 53 4d 41 52 54 4d 6f 64 75 6c SE....SMARTModul
00a0: 61 72 54 65 63 68 6e 6f 6c 6f 67 69 65 73 00 00 arTechnologies..
00b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................