AURIX™ Forum Discussions

TC397 P33.14 这个脚我们用作GPIO，输出一个PWM信号给超声波雷达芯片, 当T14 (P33.14)这脚接到电平转换芯片时，会拉低VEVRSB这路供电。经过测量发现，T14 (P33.14)一接到电平转换芯片，VEVRSB这路电流会增加个60mA左右，导致外部35584 QST过流，VEVRSB电压跌落。想请教下P33.14这脚和VEVRSB什么关系？是内部拉吗？ 

  下图是我们的原理图

Hi,

what is the reason interrupts are disabled in IfxQspi_SpiMaster_write() function? IfxCpu_disableInterrupts() is called at line 926 if DMA is used and 1104 otherwise.

In embedded world we strive to keep critical sections as short as possible. However in this code sample critical section is spanning many tens of lines containing tens of function calls. This seems like extremely unoptimized and potentially dangerous case to me since it is also burried deeply inside of a library.

Can this function in particular be optimized and how? Can we reduce critical section and what is the minimum case that must be contained in a critical section and what code can be left out?

Thanks

Hi,

I am using SAK-TC367DP-64F300S AA in my project and supplying that MCU with TLF35584QVVS1 (5V variant).

For the VDDP3 pins should I supply the pins with 3V3 externally or is there an internal LDO in MCU that provides the 3V3 supply for the VDDP3 pins?

Best regards.

Hi guys,

Has anybody here implemented Wake on CAN on Aurix TC399 (2nd gen triboard starter kit)? Could you please share any pointers for the same?