ADBMS1818 PEC and SPI.transfer（）

Question

Q1: When looking at the pec15_calc function, I don't know when MBED was defined, and the pgm_read_word_near function is not found. Q2: what file is the SPI.transfer() function in? I'm reading all the registers at 0xFF

SideshS · Answer

ZFJC said: Q1: When looking at the pec15_calc function, I don't know when MBED was defined, and the pgm_read_word_near function is not found. 
 Please use the PEC15 Calculation function given in the Digital Communications subsection under the Applications Information section of the ADBMS1818 Datasheet (Page no. 75). 
 ZFJC said: Q2: what file is the SPI.transfer() function in? I'm reading all the registers at 0xFF 
 You can use the SPI configurations and debugging steps summarised in this thread ( Communication Issue ) to configure the SPI in your controller to communicate with LTC6811.