SJA1110 Host access point

[yangjinzhuang]

Hello,

       I am not sure SPI_AP and SPI_HOST can work at the same time on SJA1110, does it means that it selects SPI_AP by SPI_HAP_SS0 and selects SPI_HOST by SPI_HAP_SS1, then can't select SPI_AP and SPI_HOST at the same time?

[PetrS]

Hi,

the SPI Access Point (SPI_AP) and the SPI Host Access (SPI_HOST) share SDI, SDO and SCK signals, so you should not communicate to both slaves at the same time.

BR, Petr

[yangjinzhuang]

Hello,

       Thank you very much! How can I get the current mode of SJA1110 SPI now? What is the default mode of factory configuration? How to view?

      I got the hardware GLDBOX(S32G-VNP-GLDBOX) recently,  the Linux BSP version is 35.0, there is only sja1110.ko in Linux OS, the SJA1110 firmware not in, maybe it saved in the flash for SJA1110 itself.

[PetrS]

Hi,

read UM11107 for SPI mode info.

For a SJA1110 firmware I think you already discussed it on https://community.nxp.com/t5/S32G/How-to-set-SJA1110-on-GLDBOX/td-p/1911879

BR, Petr