TI中文支持网Part Number:TMS570LC4357Other Parts Discussed in Thread:HALCOGEN
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我对LC4357的SCI4串口进行了配置，想通过SCI4口进行串行收发，但配置完成之后，串口并不能正常工作，以下是我的配置代码，其中参考了LS3137的配置，因为我发现4357的寄存器基本上跟3137的一样。
do{sciRegBase->GCR0 = 1U;--nTimeout;}while((sciRegBase->GCR0 != 1U) && (nTimeout > 0U)); /* repeat until bit is set and timeout does not elapsed yet *//** - Disable all interrupts */sciRegBase->CLEARINT= 0xFFFFFFFFU;sciRegBase->CLEARINTLVL = 0xFFFFFFFFU;/* @todo: */U32 parityBits = sciGetParityConfig(pUart->flags.parity);/** - global control 1 */sciRegBase->GCR1 = (1U << 25U)/* enable transmit */| (1U << 24U) /* enable receive */// | (1U << 17) /* continue on suspend (when debug mode is entered) */| (1U << 5U) /* internal clock (device has no clock pin) */| (0U << 4U) /* number of stop bits */ // 1 stop bit| (0U << 3U) /* even parity, otherwise odd */| (0U<< 2U)/* disable parity */| (1U << 1U); /* asynchronous timing mode *//** - set baudrate */ // (50M/115200)/16-1 = 26sciRegBase->BRS = (((U32) (Q_SCI_VCLK1 / pUart->baudRate) >> 4U) - 1U) & Q_SCI_BRR_P_MAX; /* M is not applied *//** - transmission length */sciRegBase->FORMAT = 0U << 16U/* length of response field */| (pUart->flags.numbits - 1U); /* character bit length *//** - set SCI pins functional mode */ // set transmit pinsciRegBase->PIO0 = (1U << 2U) /* tx pin */| (1U << 1U) /* rx pin */| (0U); /* clk pin *//** - set SCI pins default output value */sciRegBase->PIO3 = (0U << 2U) /* tx pin */| (0U << 1U) /* rx pin */| (0U); /* clk pin *//** - set SCI pins output direction *///16sciRegBase->PIO1 = (0U << 2U) /* tx pin */| (0U << 1U) /* rx pin */| (0U); /* clk pin *//** - set SCI pins open drain disable */sciRegBase->PIO6 = (0U << 2U) /* tx pin */| (0U << 1U) /* rx pin */| (0U); /* clk pin *//** - set SCI pins pullup/pulldown disable */sciRegBase->PIO7 = (1U << 2U) /* tx pin */| (1U << 1U) /* rx pin */| (0U); /* clk pin *//** - set SCI pins pullup/pulldown select */// pull upsciRegBase->PIO8 = (1U << 2U) /* tx pin */| (1U << 1U) /* rx pin */| (1U); /* clk pin *//** - set interrupt level */sciRegBase->SETINTLVL = (0U << 26U) /* Framing error */| (0U << 25U) /* Overrun error */| (0U << 24U) /* Parity error */| (0U << 9U) /* Receive */| (0U << 8U) /* Transmit */| (0U << 1U) /* Wakeup */| (0U); /* Break detect */uartIntEnable(pUart, False);/** - clear interrupt flags */sciRegBase->FLR = 0xFFFFFFFF;/* @todo: TXWAKE (10th bit of FLR) is selected, so the 1st byte was treated as address. Writing 0 to TXMAKE will solve your problem*/// sciRegBase->FLR &= ~(1<<10);/** - initialize global transfer variables *///g_sciTransfer_t[0U].mode= 0U << 8U;//g_sciTransfer_t[0U].length = 0U;/** - Finaly start SCI */sciRegBase->GCR1 |= (1U << 7U);
1. 请问有lc4357的SCI demo 代码吗？ 我可以直接参考？
2. rtos会不会对SCI产生什么影响？因为这个SCI是为了做uartbootloader用的，我的配置其实是参考TMS570LS3x的uart_bootloader的配置的
Susan Yang：
li xy 说：请问有lc4357的SCI demo 代码吗？ 我可以直接参考？
您可以在下载HALGOGEN后获取
C:\ti\Hercules\HALCoGen\v04.07.01\examples\TMS570LC43x
li xy 说：2. rtos会不会对SCI产生什么影响？
您的影响具体是指什么？ 其实RTOS是一种通用的任务管理框架，用于控制任务的运行和任务之间的交互，保证时间得到实时处理。
