[参考译文] AM62P：在 WKUP 域中启用 UART_回 调模式

您好、

请参阅以下常见问题解答、了解不同 UART 端口的用法： e2e.ti.com/.../4839735

在开始使用回波回调之前、请验证使用 wkup 示例+ wkup uart0 的正常 UART 回波

请查看您是否能够为阻塞回声示例在控制台上输入字符、然后我们可以查看回调实现。

此外、请参阅： software-dl.ti.com/.../DEVELOP_AND_DEBUG_DMR5.html

谢谢、

Vaibhav

您好、

现在、我尝试测试示例工程“uart_echo_callback_am62px-sk_mcu-R5fss0-0_freertos_ti-arm-clang"。“。 我注意到代码引入了“Semaphore_Object"以“以监控 UART 写入/读取的传输状态。 当我评论与 信标相关的代码时、我发现工程无法正常运行、并报告“UART Write Failed“。  我想知道我们是否可以放弃那些信 标,因为我认为信标只是一个奖金来监视转移过程和代码应该正常运行没有信标 .

我在下面附上了我的代码。

#include <string.h>
#include <kernel/dpl/DebugP.h>
#include "ti_drivers_config.h"
#include "ti_drivers_open_close.h"
#include "ti_board_open_close.h"

#define APP_UART_BUFSIZE              (200U)
#define APP_UART_RECEIVE_BUFSIZE      (8U)

uint8_t gUartBuffer[APP_UART_BUFSIZE];
uint8_t gUartReceiveBuffer[APP_UART_RECEIVE_BUFSIZE];
volatile uint32_t gNumBytesRead = 0U, gNumBytesWritten = 0U;

/* Semaphore to indicate Write/Read completion used in callback api's */
// static SemaphoreP_Object gUartWriteDoneSem;
// static SemaphoreP_Object gUartReadDoneSem;

#define APP_UART_ASSERT_ON_FAILURE(transferOK, transaction) \
    do { \
        if((SystemP_SUCCESS != (transferOK)) || (UART_TRANSFER_STATUS_SUCCESS != transaction.status)) \
        { \
            DebugP_assert(FALSE); /* UART TX/RX failed!! */ \
        } \
    } while(0) \

void uart_echo_callback(void *args)
{
    int32_t          transferOK, status;
    UART_Transaction trans;

    DebugP_log("[UART] Echo callback example started ...\r\n");

    // status = SemaphoreP_constructBinary(&gUartWriteDoneSem, 0);
    // DebugP_assert(SystemP_SUCCESS == status);

    // status = SemaphoreP_constructBinary(&gUartReadDoneSem, 0);
    // DebugP_assert(SystemP_SUCCESS == status);

    UART_Transaction_init(&trans);

    /* Send entry string */
    gNumBytesWritten = 0U;
    trans.buf   = &gUartBuffer[0U];
    strncpy(trans.buf,"This is uart echo test callback mode\r\nReceives 8 characters then echo's back. Please input..\r\n", APP_UART_BUFSIZE);
    trans.count = strlen(trans.buf);
    transferOK = UART_write(gUartHandle[CONFIG_UART_CONSOLE], &trans);
    APP_UART_ASSERT_ON_FAILURE(transferOK, trans);

    /* Wait for write completion */
    // SemaphoreP_pend(&gUartWriteDoneSem, SystemP_WAIT_FOREVER);
    // DebugP_assert(gNumBytesWritten == strlen(trans.buf));

    /* Read 8 chars */
    gNumBytesRead = 0U;
    trans.buf   = &gUartReceiveBuffer[0U];
    trans.count = APP_UART_RECEIVE_BUFSIZE;
    transferOK = UART_read(gUartHandle[CONFIG_UART_CONSOLE], &trans);
    APP_UART_ASSERT_ON_FAILURE(transferOK, trans);

    /* Wait for read completion */
    // SemaphoreP_pend(&gUartReadDoneSem, SystemP_WAIT_FOREVER);
    // DebugP_assert(gNumBytesRead == APP_UART_RECEIVE_BUFSIZE);

    /* Echo chars entered */
    gNumBytesWritten = 0U;
    trans.buf   = &gUartReceiveBuffer[0U];
    trans.count = APP_UART_RECEIVE_BUFSIZE;
    transferOK = UART_write(gUartHandle[CONFIG_UART_CONSOLE], &trans);
    APP_UART_ASSERT_ON_FAILURE(transferOK, trans);

    /* Wait for write completion */
    // SemaphoreP_pend(&gUartWriteDoneSem, SystemP_WAIT_FOREVER);
    // DebugP_assert(gNumBytesWritten == APP_UART_RECEIVE_BUFSIZE);

    /* Send exit string */
    gNumBytesWritten = 0U;
    trans.buf   = &gUartBuffer[0U];
    strncpy(trans.buf, "\r\nAll tests have passed!!\r\n", APP_UART_BUFSIZE);
    trans.count = strlen(trans.buf);
    transferOK = UART_write(gUartHandle[CONFIG_UART_CONSOLE], &trans);
    APP_UART_ASSERT_ON_FAILURE(transferOK, trans);

    /* Wait for write completion */
    // SemaphoreP_pend(&gUartWriteDoneSem, SystemP_WAIT_FOREVER);
    // DebugP_assert(gNumBytesWritten == strlen(trans.buf));

    // SemaphoreP_destruct(&gUartWriteDoneSem);
    // SemaphoreP_destruct(&gUartReadDoneSem);

    DebugP_log("All tests have passed!!\r\n");

    return;
}

void uart_echo_write_callback(UART_Handle handle, UART_Transaction *trans)
{
    DebugP_assertNoLog(UART_TRANSFER_STATUS_SUCCESS == trans->status);
    gNumBytesWritten = trans->count;
    //SemaphoreP_post(&gUartWriteDoneSem);

    return;
}

void uart_echo_read_callback(UART_Handle handle, UART_Transaction *trans)
{
    DebugP_assertNoLog(UART_TRANSFER_STATUS_SUCCESS == trans->status);
    gNumBytesRead = trans->count;
    //SemaphoreP_post(&gUartReadDoneSem);

    return;
}

BR、

Bomiao

尊敬的 Bomiao：

我在阻塞模式下测试了 WKUP UART、结果就顺利了。

对于回调模式、我也看到问题。 如果您自上次实验以来对此有任何更新、请告知我。

我也提出了一个内部错误。

谢谢、

Vaibhav