Avnet SMARC MSC SM2S-IMX8MINI User Manual page 5

5.3.1 SDRAM ......................................................................................................................................................................................................................................................... 50
5.3.2 eMMC ............................................................................................................................................................................................................................................................ 50
5.3.3 EEPROM ....................................................................................................................................................................................................................................................... 51
5.4 Trusted Platform Module ............................................................................................................................................................................................................... 51
5.5 WiFi/Bluetooth ............................................................................................................................................................................................................................... 52
5.6 MicroSD Card Socket .................................................................................................................................................................................................................... 52
5.7 Debug Options ............................................................................................................................................................................................................................... 52
5.7.1 Debug Connector .......................................................................................................................................................................................................................................... 52
5.7.2 JTAG Connector ............................................................................................................................................................................................................................................ 54
6 BUS AND ADDRESS MAPPING .......................................................................................................................................................................... 56
6.1 I²C Devices .................................................................................................................................................................................................................................... 56
6.2 SPI Devices ................................................................................................................................................................................................................................... 57
7 BOARD SUPPORT PACKAGE (BSP) ................................................................................................................................................................. 58
7.1 General information ....................................................................................................................................................................................................................... 58
7.2 MSC-LDK (Yocto) .......................................................................................................................................................................................................................... 58
7.2.1 MSC-LDK Terms ........................................................................................................................................................................................................................................... 58
7.2.2 Getting Started .............................................................................................................................................................................................................................................. 58
7.2.3 Setup the MSC-LDK build environment ......................................................................................................................................................................................................... 60
7.2.4 Generate images ........................................................................................................................................................................................................................................... 68
7.2.5 Image Deployment ........................................................................................................................................................................................................................................ 71
7.3 Running an Image ......................................................................................................................................................................................................................... 71
7.3.1 Booting SPL (secondary program loader)/U-Boot ......................................................................................................................................................................................... 71
7.3.2 Booting OS .................................................................................................................................................................................................................................................... 74
7.3.3 Login to FS .................................................................................................................................................................................................................................................... 80
7.3.4 SMARC GPIO access ................................................................................................................................................................................................................................... 80
7.3.5 Bug Reporting ............................................................................................................................................................................................................................................... 81
7.4 Hotfixes and updating MSC-LDK ................................................................................................................................................................................................... 85
8 TROUBLESHOOTING ......................................................................................................................................................................................... 87
8.1 Known issues and limitations......................................................................................................................................................................................................... 87
8.1.1 Issue 1. SPI interfaces not available on MSC SM2S-IMX8MINIQC-14N0261I variant Both CAN transceivers drive SPI[0:1]_DIN signals low even though not selected by
chip select signal. ........................................................................................................................................................................................................................................................... 87
8.2 Support .......................................................................................................................................................................................................................................... 87
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