SCB SPI Master不驱动SS2

嗨，鲍伯，
我使用CYC8KIT-049（42xx）插入我自己的板，它有三个SPI设备共享同一个SCB SPI主机。SS0中的一个是用16位数据来表示摩托罗拉的LED矩阵。在SS1和SS2是两个微芯片CAP1128 CAPSENSE按钮控制器，它也讲摩托罗拉，但具有8位数据。SCB初始化为未配置的。我的代码与SS1的LED矩阵和CAP1128一起工作，并且在SS2中有相同的代码来操作。我也有一个UART吐出调试信息通过USB串行，显示按钮活动。我的问题是PSoC将不运行SS2引脚，它只是坐在高处。我用一个逻辑分析仪来捕捉这个罪犯，并确保它不干扰我的板，我拔出了049个板，仍然没有SS2上的波形。附上我的代码。我已经评论了与LED矩阵和工作CAP1128交互的调用，以简化。如有任何建议，将不胜感激。
CAP+LeDS01F.Cyrj.CaseVo.01.Zip
792.3 K



     以下为原文
  Hi Bob,

I am using the CYC8KIT-049 (42xx) plugged into my own board, which has three SPI devices sharing the same SCB SPI Master. The one at SS0 is a LED matrix which speaks Motorola with 16 bit data. At SS1 and SS2 are two Microchip CAP1128 capsense button controllers, which also speak Motorola, but with 8-bit data. SCB is initialized as Unconfigured. My code works with the LED matrix and the CAP1128 at SS1, and I have identical code to operate that at SS2. I also have a UART that spits debug info over the USB serial, showing button activity. My problem is that the PSOC will not operate the SS2 pin, it just sits high. I used a logic analyzer to catch this culprit, and to ensure that it wasn't interference on my board, I unplugged the 049 board and still no waveform on SS2. My code is attached. I've commented out the calls to interact with the LED matrix and the working CAP1128, to simplify. Any advice would be much appreciated.

•   CAP+LEDS01f.cyprj.Archive01.zip 792.3 K