It seems the ROM API phRomhalCt_RegInit() does NOT change the values as expected for the fields:
- bPullupSetStatus
- bCardPresConnectorStatus
Code snippet from PN7462AU_ex_phExCt with modifications:
/* By default EEPROM has the values (see phCfg for details): */
/* gpkphCfg_EE_Boot_CT->bPullUp = 1 */
/* gpkphCfg_EE_Boot_CT->bConnectorType = 1 */
/* gpkphCfg_EE_Boot_CT->bAutoCTDeactivationEnable = 1 */
/* gpkphCfg_EE_Boot_CT->bSlewRate = 0x38 */
/* Initialize the CT module for normally closed presence switch as recommended in AN11738 */
phhalCt_InitParam_t sInitParams;
sInitParams.bPullupSetStatus = 0;
sInitParams.bCardPresConnectorStatus = 0;
sInitParams.bAutoCTDeactivationEnable = 0;
sInitParams.bSlewRateConfig = 0x38;
phhalCt_Init(&sInitParams);
regVal = PH_REG_GET(CT_SSR_REG);
/* regVal still reflects the values set by EEPROM config as before calling phhalCt_Init() for bPullUp and bCardPres */
/* To set PRES_PUP_EN and PRES_CON_NO as desired use write to register directly: */
PH_REG_SET(CT_SSR_REG, (uint32_t)0x01);
regVal = PH_REG_GET(CT_SSR_REG);
Hopefully with the explaination above you are able to reproduce and hopefully fix it in the near future.
For now I'll use a direct register write as a workaround to get it configured for my hardware setup.
Kind regards,
Robert
