使用UART和DMA块时出现问题

你好，
我使用CYC8CKIT-048 PSoC模拟协处理器先锋套件，并且在使用同一个项目中同时使用UART和DMA块的同时遇到问题。
我需要使用从PC发送的数字数据，并通过UART接收来确定应该产生哪一个频率正弦波（基本上我需要做一个FSK调制器）。
我试图通过将UARTHARTX连接到TCPWM的开关输入端，使用一个引脚作为UART的数字输出，一个引脚作为PWM的数字输入并通过导线连接它们。我计划使用PWM作为时钟分频器（因为PSoC没有数字复用器，或者我找不到它）？根据开关输入的值来计算不同的值。
然后，我将PWM线路输出连接到DMA触发输入，DMA将数据从正弦LUT表传输到VDAC的内部寄存器，并将VDAC路由到输出引脚。
但是，当我尝试构建这个项目时，我会发现一个错误，即Palter无法找到PIN和固定功能块的有效位置。
有没有办法像我想象的那样做，还是我错过了什么？
谢谢
这里是一个Palel.txt文件的副本：
第4阶段
E2809：无法找到用于PIN和固定功能块的有效位置。有关详细信息，请参阅报表文件中的数字放置详细放置消息部分。
I27 22：不能放置以下实例：
pWMY1：CyM0S8O-TCPWMY1（0个位置）
时钟块（1个位置）：f（时钟，0）
UARTAR1：SCB（3个位置（S）：F（SCB，0）F（SCB，1）F（SCB，2））
固定功能块和引脚放置：
P1〔1〕：Pin 2（0）
F（HalfAb，0）：VDACH1：UAB：HalFuAb
F（P4PREFCELL，0）：CyDeWieldVeloGeRealEngress
P4〔1〕：PiNi3（0）
F（CKLYGEN，0）：CcLogGAND块
F（OA，2）：VDACH1：OutHuffel:CyspSO44Abuf\
P0〔4〕：Pin 1（0）
P1〔2〕：Pin 4（0）
E2055：设计过程中发生错误。



     以下为原文
  Hi,
I am using CYC8CKIT-048 PSOC Analog Coprocessor Pioneer Kit and am experiencing issues while using both UART and DMA block in the same project.
I need to use the digital data sent from a PC and received via UART to determine which frequency sine wave should be generated (basically I need to make a FSK modulator).
I was trying to do that by connecting UART_tx to the switch input of a TCPWM by using one pin configured as digital output for UART and one as digital input for PWM and connecting them (by wire). I was planning to use the PWM as a clock divider (since this PSOC doesn't have a digital mux, or I can't seem to find it?) which counts to different values depending on the value of switch input.
Then i would connect PWM line output to DMA trigger input, and DMA would transfer data from a sine LUT table to VDAC's internal register and route VDAC to an output pin.
But when i try to build the project I get an error saying that the placer is unable to find a valid placement for pins and fixed-function blocks.

Is there a way to do this the way I imagined, or am I missing something?

Thanks


Here is a copy of placer.txt file:
Phase 4
E2809: Unable to find a valid placement for pins and fixed-function blocks. See the Digital Placement's Detailed placement messages section in the report file for details.
I2722: The following instances could not be placed:
   PWM_1:cy_m0s8_tcpwm_1 (0 location(s))
   ClockBlock (1 location(s): F(Clock,0))
   UART_1:SCB (3 location(s): F(SCB,0) F(SCB,1) F(SCB,2))
Fixed function block and pin placement:
   P1[1]: Pin_2(0)
   F(HALFUAB,0): VDAC_1:UAB:halfuab
   F(p4prefcell,0): CyDesignWideVoltageReference
   P4[1]: Pin_3(0)
   F(CLK_GEN,0): ClockGenBlock
   F(OA,2): VDAC_1:OUTBUFFER:cy_psoc4_abuf
   P0[4]: Pin_1(0)
   P1[2]: Pin_4(0)

E2055: An error occurred during placement of the design.