【APM32F411V Tiny Board测评】+点灯和串口printf打印输出测试
很高兴又可以参与极海MCU的评测了。收到这个APM32F411开发板有些天了，这几天了解了一下这款MCU，顺便下载了相关资料。在极海官网下载资料挺方便的。主要下载了APM32F4的SDK开发包和芯片用户手册和数据手册，开发板原理图。APM32F411性能还是很不错的。
下面是开发板原理。接下来准备点个灯和串口输出测试一下。
在sdk中包含KEIL的pack包，安装之后就可以在keil中选择MCU型号了。
下面就是我重新创建的工程，参考SDK例子。实现了LED，按键和串口驱动。
/** @addtogroup Examples
@{
*/
void APM_TINY_LEDInit(GPIO_T* port, uint32_t pin)
{
GPIO_Config_TconfigStruct;
/* Enable the GPIO_LED Clock */
RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOE);
/* Configure the GPIO_LED pin */
GPIO_ConfigStructInit(&configStruct);
configStruct.pin = pin;
configStruct.mode = GPIO_MODE_OUT;
configStruct.speed = GPIO_SPEED_50MHz;
GPIO_Config(port, &configStruct);
}
void APM_TINY_PBInit(GPIO_T* port, uint32_t pin, uint32_t Button_Mode)
{
GPIO_Config_T GPIO_configStruct;
EINT_Config_T EINT_configStruct;
/* Enable the BUTTON Clock */
RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOA);
/* Configure Button pin as input floating */
GPIO_ConfigStructInit(&GPIO_configStruct);
GPIO_configStruct.mode = GPIO_MODE_IN;
GPIO_configStruct.pin = pin;
GPIO_configStruct.pupd= GPIO_PUPD_UP;
GPIO_Config(port, &GPIO_configStruct);
if (Button_Mode == 1)
{
/* Enable the SYSCFG Clock */
RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_SYSCFG);
/* Connect Button EINT Line to Button GPIO Pin */
SYSCFG_ConfigEINTLine(SYSCFG_PORT_GPIOA, SYSCFG_PIN_0);
/* Configure Button EINT line */
EINT_configStruct.line = EINT_LINE_0;
EINT_configStruct.mode = EINT_MODE_INTERRUPT;
EINT_configStruct.trigger = EINT_TRIGGER_FALLING;
EINT_configStruct.lineCmd = ENABLE;
EINT_Config(&EINT_configStruct);
/* Enable and set Button EINT Interrupt to the lowest priority */
NVIC_EnableIRQRequest(EINT0_IRQn, 0x0f, 0x0f);
/* Connect Button EINT Line to Button GPIO Pin */
SYSCFG_ConfigEINTLine(SYSCFG_PORT_GPIOA, SYSCFG_PIN_1);
/* Configure Button EINT line */
EINT_configStruct.line = EINT_LINE_1;
EINT_configStruct.mode = EINT_MODE_INTERRUPT;
EINT_configStruct.trigger = EINT_TRIGGER_FALLING;
EINT_configStruct.lineCmd = ENABLE;
EINT_Config(&EINT_configStruct);
/* Enable and set Button EINT Interrupt to the lowest priority */
NVIC_EnableIRQRequest(EINT1_IRQn, 0x0f, 0x0f);
}
}
void APM_TINY_COMInit(USART_T * com, uint32_t baud)
{
GPIO_Config_T GPIO_configStruct;
USART_Config_T usartConfigStruct;
GPIO_ConfigStructInit(&GPIO_configStruct);
if (USART1 == com)
{
/* Enable GPIO clock */
RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOA);
RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_USART1);
/* Connect PXx to USARTx_Tx */
GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_9, GPIO_AF_USART1);
/* Connect PXx to USARTx_Rx */
GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_10, GPIO_AF_USART1);
/* Configure USART Tx as alternate function push-pull */
GPIO_configStruct.mode = GPIO_MODE_AF;
GPIO_configStruct.pin= GPIO_PIN_9;
GPIO_configStruct.speed = GPIO_SPEED_50MHz;
GPIO_Config(GPIOA, &GPIO_configStruct);
/* Configure USART Rx as input floating */
GPIO_configStruct.mode = GPIO_MODE_AF;
GPIO_configStruct.pin= GPIO_PIN_10;
GPIO_Config(GPIOA, &GPIO_configStruct);
}
else if (USART2 == com)
{
RCM_EnableAHB1PeriphClock(RCM_AHB1_PERIPH_GPIOA);
RCM_EnableAPB1PeriphClock(RCM_APB1_PERIPH_USART2);
/* Connect PXx to USARTx_Tx */
GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_2, GPIO_AF_USART2);
/* Connect PXx to USARTx_Rx */
GPIO_ConfigPinAF(GPIOA, GPIO_PIN_SOURCE_3, GPIO_AF_USART2);
/* Configure USART Tx as alternate function push-pull */
GPIO_configStruct.mode = GPIO_MODE_AF;
GPIO_configStruct.pin= GPIO_PIN_2;
GPIO_configStruct.speed = GPIO_SPEED_50MHz;
GPIO_Config(GPIOA, &GPIO_configStruct);
/* Configure USART Rx as input floating */
GPIO_configStruct.mode = GPIO_MODE_AF;
GPIO_configStruct.pin= GPIO_PIN_3;
GPIO_Config(GPIOA, &GPIO_configStruct);
}
/* USART1 configuration */
usartConfigStruct.baudRate = baud;
usartConfigStruct.hardwareFlow = USART_HARDWARE_FLOW_NONE;
usartConfigStruct.mode = USART_MODE_TX_RX;
usartConfigStruct.parity = USART_PARITY_NONE;
usartConfigStruct.stopBits = USART_STOP_BIT_1;
usartConfigStruct.wordLength = USART_WORD_LEN_8B;
/* USART configuration */
USART_Config(com, &usartConfigStruct);
/* Enable USART */
USART_Enable(com);
}下面是实现串口printf输出方法。根据如下方法可以快速实现串口重定向到printf.
接下来只要实现一个int stdout_putchar(int ch)函数即可。
int stdout_putchar(int ch)
{
/* send a byte of data to the serial port */
USART_TxData(USART1, (uint8_t)ch);
/* wait for the data to be send */
while (USART_ReadStatusFlag(USART1, USART_FLAG_TXBE) == RESET);
return (ch);
}下面是main测试代码：
int main(void)
{
SystemCoreClockUpdate();
SysTick_Config(SystemCoreClock / 1000); //1ms
APM_TINY_LEDInit(LED2_GPIO_PORT,LED2_PIN);
APM_TINY_LEDInit(LED3_GPIO_PORT,LED3_PIN);
APM_TINY_PBInit(KEY1_BUTTON_GPIO_PORT, KEY1_BUTTON_PIN,0);
APM_TINY_PBInit(KEY2_BUTTON_GPIO_PORT, KEY2_BUTTON_PIN,0);
APM_TINY_COMInit(USART1,115200);
printf("APM32F411 TEST.\r\n");
while (1)
{
APM_DelayMs(200);
GPIO_ToggleBit(LED2_GPIO_PORT,LED2_PIN);
APM_DelayMs(200);
GPIO_ToggleBit(LED3_GPIO_PORT,LED3_PIN);
if(GPIO_ReadInputBit(KEY1_BUTTON_GPIO_PORT, KEY1_BUTTON_PIN) == BIT_RESET)
{
printf("APM32F411 Key1 Press.\r\n");
}
if(GPIO_ReadInputBit(KEY2_BUTTON_GPIO_PORT, KEY2_BUTTON_PIN) == BIT_RESET)
{
printf("APM32F411 Key2 Press.\r\n");
}
}
}然后设置keil优化等级和头文件路径。
串口输出效果：
能否提供个完整工程试试 楼主是用的自带的例程进行的测试嘛？ szt1993 发表于 2024-5-23 17:16
楼主是用的自带的例程进行的测试嘛？
自己修改一下的
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