Other Parts Discussed in Thread: HALCOGEN
你好：
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 = 26
sciRegBase->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 pin
sciRegBase->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 *///16
sciRegBase->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 up
sciRegBase->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
