RAA2S4251 and ZSSC3241

Question

Hi, 
 
 Is there any owi description, how cominucation is setup and how register may be wrote. 
 How the coefficients are calculated. 
 I want to calibrate device on my own software. 
 
 Best Regards.

IK_Renesas · Answer

Hello again, 
 We would recommend to you to start using the SSC-communication board (SSC-board) or EVK as communication hardware to start with. 
 For both SSCs we have available EVKs. 
 https://www.renesas.com/us/en/products/sensor-products/sensor-signal-conditioners-ssc-afe/raa2s425xkit-raa2s425xkit-evaluation-kit#design_development 
 https://www.renesas.com/us/en/products/sensor-products/sensor-signal-conditioners-ssc-afe/zssc3241kit-evaluation-kit-zssc3241#overview 
 The basics for OWI interface and protocol can be found inside the datasheet of ZSSC3241 and are also valid for RAA2S4251. 
 https://www.renesas.com/us/en/document/dst/zssc3241-datasheet?r=25417946 
 The basic syntax of the communication with the SSC-CB or EVK can be found in a &ldquo;syntax&rdquo;-Excel file inside the firmware package: 
 https://www.renesas.com/us/en/document/swo/ssc-cb-firmware-v421-bootloader-use-communication-board-v41-only?r=182016 
 
 RAA2S4251B details of commands and responses are in the command description document: https://www.renesas.com/us/en/document/mah/raa2s4251b-command-description?r=1534086 
 RAA2S4251B memory allocation is here: https://www.renesas.com/us/en/document/mah/raa2s4251b-memory-allocation?r=1534086 
 
 Regarding the calibration here is a general calibration flow:

Filling this with a table/list of commands specific for the RAA2S4251B will take me some time. 
 
 As already mentioned a good starting point whether if you choose the automotive one or the industrial one is using the EVK board with the EVK SW. With this you first should check for the suitable settings that work with his sensor. The EVK commands used by the software can be monitored by the &ldquo;log&rdquo; window. 
 
 For more details about the ZSSC3241 we will get back to you as soon as possible. 
 
 Best Regards, 
 Irini

IK_Renesas · Answer

Hello again, 
 Some extra info for ZSSC3241: 
 If you want to implement your own SW for the calibration process must include our calibration DLL in your environment for coefficient calculations. The DLL, the relevant documentation and a source code example can be found here: 
 https://rfs.renesas.eu/?ShareToken=0C8F89B0D2C883F589CE141ED7D807F3149989D1 
 PW: ZSSC324x 
 
 Best Regards, 
 Irini