I am implementing SLIC functionality using the EC200 module with the SI32185 SLIC chip. The technical manual states that SLIC_RESET and SLIC_INT require a customized software/firmware version (see Quectel_EC200A_Series_Reference_Design_V1.1.pdf, p. 10). In a Chinese hardware manual (Quectel_EC200A系列_硬件设计手册_V1.1.pdf, p. 43) it says:
“SPI连接SLIC芯片SI32185时，需要使用模块引脚3作为RESET_SLIC连接SI32185的引脚18，使
用模块引脚4作为INT_SLIC连接SI32185的引脚6，同时需要软件更改模块引脚3、4的GPIO配置。 ”
How should I configure the hardware pins? Is it sufficient to simply send the specific AT commands — for example:
AT+QSLIC=0,2 //Disable SLIC.
AT+QSLIC=1,2 //Enable SLIC and set the SLIC platform type to SI32185.
Dear @Mr_Wanzi ,
Thank you for reaching out.
No, AT+QSLIC=1,2 alone is not sufficient.
For SI32185, the hardware connection should follow the manual: module pin 3 to SI32185 pin 18 as SLIC_RESET, and module pin 4 to SI32185 pin 6 as SLIC_INT. But these two pins require customized firmware/software configuration, as stated in the manual. So the AT command only enables SLIC and selects the SI32185 platform; it does not by itself remap pin 3 and pin 4 to the required SLIC functions.
In short, the correct requirement is: correct hardware wiring plus the customized firmware that changes pin 3 and pin 4 GPIO function. Without that customized software support, only sending the AT commands is not enough.
Best regards,
Aghelan