PN7462AU Contact interface 问题

[onlineit]

PN7462AU的接触式接口的兼容性不好，同样的代码，在执行取随机数指令：00 84 00 00 08时，有些卡片可以执行成功，并返回隋机数，有些卡片执行失败，返回80 91，或80 90 、80 89，请问PN7462的接触式接口（7816接口）的CLK可以修改吗？默认的时钟频率是多少？

代码如下：

uint8_t bApduCommand[]={0x00,0x84,0x00,0x00,0x08}

/* Send the Apdu */
status = phpalCt_Transceive(
bApduCommand,
sizeof(bApduCommand),
cPsamRxBuffer,&wNoOfResponseBytes);
if(status != PH_ERR_SUCCESS)
{
//phLED_SetPattern(gkphLED_Ct_Fail);
LOG_TXT("Error transceiving Apdu\n");
break;
}
if((cPsamRxBuffer[wNoOfResponseBytes-2] == 0x90) && (cPsamRxBuffer[wNoOfResponseBytes-1] == 0x00))
{
//phLED_SetPattern(gkphLED_Ct_Pass);
LOG_TXT(bApduInfo[bApduCount]);
status = PH_ERR_SUCCESS;
break;
}
else
{
status = PH_ERR_PROTOCOL_ERROR;
}

执行以上代码时，接触式SAM卡已经激活。

[onlineit]

ATR解析的问题，eStatus = phhalCt_AtrParser(psAtrParams);

[Kan_Li]

The  clk can be adjusted based on Register ct_ccr1_reg/ct_ccr2_reg (Clock Configuration Register), Please refer to the following for details.

Hope that helps,

Have a great day,
Kan

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