【简介】
现在接触的主流的MCU 都会支持图形化的配置工具，同样TI 的MSPM0L1306 也是支持的，我们可以使用TI System Configuration Tool 工具来配置clock/pin/及外设参数的配置。
【时钟配置】
MSPM0L1306 没有外接晶振，使用内部SYSOSC作为时钟源，内部配置为32M的时钟，配置如下
【UART配置】
从框图上可以看出MSPM0L1306 的一路串口通过调试器的虚拟串口连接到USB，我们可以使用该路UART来调试从而不需要外接USB串口来调试。
对应的引脚为PA8/A9
使用配置工具配置uart 参数
配置pinmux
配置后会生成如下的配置代码
ti_msp_dl_config.c
/*
* Copyright (c) 2023, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* ============ ti_msp_dl_config.c =============
* Configured MSPM0 DriverLib module definitions
*
* DO NOT EDIT - This file is generated for the LP_MSPM0L1306
* by the SysConfig tool.
*/
#include "ti_msp_dl_config.h"
/*
* ======== SYSCFG_DL_init ========
* Perform any initialization needed before using any board APIs
*/
SYSCONFIG_WEAK void SYSCFG_DL_init(void)
{
SYSCFG_DL_initPower();
SYSCFG_DL_GPIO_init();
/* Module-Specific Initializations*/
SYSCFG_DL_SYSCTL_init();
SYSCFG_DL_UART_0_init();
}
SYSCONFIG_WEAK void SYSCFG_DL_initPower(void)
{
DL_GPIO_reset(GPIOA);
DL_UART_Main_reset(UART_0_INST);
DL_GPIO_enablePower(GPIOA);
DL_UART_Main_enablePower(UART_0_INST);
delay_cycles(POWER_STARTUP_DELAY);
}
SYSCONFIG_WEAK void SYSCFG_DL_GPIO_init(void)
{
DL_GPIO_initPeripheralOutputFunction(
GPIO_UART_0_IOMUX_TX, GPIO_UART_0_IOMUX_TX_FUNC);
DL_GPIO_initPeripheralInputFunction(
GPIO_UART_0_IOMUX_RX, GPIO_UART_0_IOMUX_RX_FUNC);
}
SYSCONFIG_WEAK void SYSCFG_DL_SYSCTL_init(void)
{
//Low Power Mode is configured to be SLEEP0
DL_SYSCTL_setBORThreshold(DL_SYSCTL_BOR_THRESHOLD_LEVEL_0);
DL_SYSCTL_setSYSOSCFreq(DL_SYSCTL_SYSOSC_FREQ_BASE);
DL_SYSCTL_setMCLKDivider(DL_SYSCTL_MCLK_DIVIDER_DISABLE);
}
static const DL_UART_Main_ClockConfig gUART_0ClockConfig = {
.clockSel = DL_UART_MAIN_CLOCK_BUSCLK,
.divideRatio = DL_UART_MAIN_CLOCK_DIVIDE_RATIO_1
};
static const DL_UART_Main_Config gUART_0Config = {
.mode = DL_UART_MAIN_MODE_NORMAL,
.direction = DL_UART_MAIN_DIRECTION_TX_RX,
.flowControl = DL_UART_MAIN_FLOW_CONTROL_NONE,
.parity = DL_UART_MAIN_PARITY_NONE,
.wordLength = DL_UART_MAIN_WORD_LENGTH_8_BITS,
.stopBits = DL_UART_MAIN_STOP_BITS_ONE
};
SYSCONFIG_WEAK void SYSCFG_DL_UART_0_init(void)
{
DL_UART_Main_setClockConfig(UART_0_INST, (DL_UART_Main_ClockConfig *) &gUART_0ClockConfig);
DL_UART_Main_init(UART_0_INST, (DL_UART_Main_Config *) &gUART_0Config);
/*
* Configure baud rate by setting oversampling and baud rate divisors.
* Target baud rate: 115200
* Actual baud rate: 115211.52
*/
DL_UART_Main_setOversampling(UART_0_INST, DL_UART_OVERSAMPLING_RATE_16X);
DL_UART_Main_setBaudRateDivisor(UART_0_INST, UART_0_IBRD_32_MHZ_115200_BAUD, UART_0_FBRD_32_MHZ_115200_BAUD);
DL_UART_Main_enable(UART_0_INST);
}ti_msp_dl_config.h
/*
* Copyright (c) 2023, Texas Instruments Incorporated - http://www.ti.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* ============ ti_msp_dl_config.h =============
* Configured MSPM0 DriverLib module declarations
*
* DO NOT EDIT - This file is generated for the LP_MSPM0L1306
* by the SysConfig tool.
*/
#ifndef ti_msp_dl_config_h
#define ti_msp_dl_config_h
#define CONFIG_LP_MSPM0L1306
#define CONFIG_MSPM0L1306
#if defined(__ti_version__) || defined(__TI_COMPILER_VERSION__)
#define SYSCONFIG_WEAK __attribute__((weak))
#elif defined(__IAR_SYSTEMS_ICC__)
#define SYSCONFIG_WEAK __weak
#elif defined(__GNUC__)
#define SYSCONFIG_WEAK __attribute__((weak))
#endif
#include <ti/devices/msp/msp.h>
#include <ti/driverlib/driverlib.h>
#include <ti/driverlib/m0p/dl_core.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* ======== SYSCFG_DL_init ========
* Perform all required MSP DL initialization
*
* This function should be called once at a point before any use of
* MSP DL.
*/
/* clang-format off */
#define POWER_STARTUP_DELAY (16)
#define CPUCLK_FREQ 32000000
/* Defines for UART_0 */
#define UART_0_INST UART0
#define UART_0_INST_FREQUENCY 32000000
#define UART_0_INST_IRQHandler UART0_IRQHandler
#define UART_0_INST_INT_IRQN UART0_INT_IRQn
#define GPIO_UART_0_RX_PORT GPIOA
#define GPIO_UART_0_TX_PORT GPIOA
#define GPIO_UART_0_RX_PIN DL_GPIO_PIN_9
#define GPIO_UART_0_TX_PIN DL_GPIO_PIN_8
#define GPIO_UART_0_IOMUX_RX (IOMUX_PINCM10)
#define GPIO_UART_0_IOMUX_TX (IOMUX_PINCM9)
#define GPIO_UART_0_IOMUX_RX_FUNC IOMUX_PINCM10_PF_UART0_RX
#define GPIO_UART_0_IOMUX_TX_FUNC IOMUX_PINCM9_PF_UART0_TX
#define UART_0_BAUD_RATE (115200)
#define UART_0_IBRD_32_MHZ_115200_BAUD (17)
#define UART_0_FBRD_32_MHZ_115200_BAUD (23)
/* clang-format on */
void SYSCFG_DL_init(void);
void SYSCFG_DL_initPower(void);
void SYSCFG_DL_GPIO_init(void);
void SYSCFG_DL_SYSCTL_init(void);
void SYSCFG_DL_UART_0_init(void);
#ifdef __cplusplus
}
#endif
#endif /* ti_msp_dl_config_h */【测试验证】
我们在main 函数内添加如下测试代码回显接收到的串口数据
#include "ti_msp_dl_config.h"
int main(void)
{
SYSCFG_DL_init();
uint8_t data;
while (1) {
/* Wait to receive UART_PACKET_SIZE bytes of data */
data = DL_UART_Extend_receiveDataBlocking(UART_0_INST);
/* Echo back the received data */
DL_UART_Extend_transmitDataBlocking(UART_0_INST,data);
}
return 0;
}下载运行后跟预期的一致对输入的数据进行回显显示
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