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| // DIO引脚设置高电平
void \_\_dev\_7segment\_led\_dio\_low(dev\_7segments\_led\_t \*dev) {
HAL\_GPIO\_WritePin(dev->DIO_GPIOx, dev->DIO_GPIO_Pinx, GPIO_PIN_RESET);
}
// DIO引脚设置低电平
void \_\_dev\_7segment\_led\_dio\_high(dev\_7segments\_led\_t \*dev) {
HAL\_GPIO\_WritePin(dev->DIO_GPIOx, dev->DIO_GPIO_Pinx, GPIO_PIN_SET);
}
// SCLK引脚设置高电平
void \_\_dev\_7segment\_led\_sclk\_low(dev\_7segments\_led\_t \*dev) {
HAL\_GPIO\_WritePin(dev->SCLK_GPIOx, dev->SCLK_GPIO_Pinx, GPIO_PIN_RESET);
}
// SCLK引脚设置低电平
void \_\_dev\_7segment\_led\_sclk\_high(dev\_7segments\_led\_t \*dev) {
HAL\_GPIO\_WritePin(dev->SCLK_GPIOx, dev->SCLK_GPIO_Pinx, GPIO_PIN_SET);
}
// RCLK引脚设置高电平
void \_\_dev\_7segment\_led\_rclk\_low(dev\_7segments\_led\_t \*dev) {
HAL\_GPIO\_WritePin(dev->RCLK_GPIOx, dev->RCLK_GPIO_Pinx, GPIO_PIN_RESET);
}
// RCLK引脚设置低电平
void \_\_dev\_7segment\_led\_rclk\_high(dev\_7segments\_led\_t \*dev) {
HAL\_GPIO\_WritePin(dev->RCLK_GPIOx, dev->RCLK_GPIO_Pinx, GPIO_PIN_SET);
}
// 开始发送数据
void \_\_dev\_7segment\_led\_pulse(dev\_7segments\_led\_t \*dev) {
\_\_dev\_7segment\_led\_sclk\_high(dev);
\_\_dev\_7segment\_led\_sclk\_low(dev);
}
//锁存数据
void \_\_dev\_7segment\_led\_latch(dev\_7segments\_led\_t \*dev) {
\_\_dev\_7segment\_led\_rclk\_low(dev);
\_\_dev\_7segment\_led\_rclk\_high(dev);
}
void \_\_dev\_7segment\_led\_delay\_us(uint32\_t us) {
for (int j = 0; j < us; j++) {
\_\_NOP();
}
}
uint8\_t \_\_dev\_data\_to\_segment(uint8\_t data) {
if (data >= 0 && data <= 9) {
return __s_led_num[data];
} else if (data == '-') {
return __s_led_num[10];
} else if (data == 'A' || data == 'a') {
return __s_led_num[11];
} else if (data == 'B' || data == 'b') {
return __s_led_num[12];
} else if (data == 'C' || data == 'c') {
return __s_led_num[13];
} else if (data == 'D' || data == 'd') {
return __s_led_num[14];
} else if (data == 'E' || data == 'e') {
return __s_led_num[15];
} else if (data == 'F' || data == 'f') {
return __s_led_num[16];
} else {
return 0xFF;
}
}
void \_\_dev\_7segment\_led\_send\_data(dev\_7segments\_led\_t \*dev, uint8\_t data) {
uint8\_t temp = data;
for (uint8\_t i = 0; i < 8; i++) {
if (temp & (0x80 >> i)) {
\_\_dev\_7segment\_led\_dio\_high(dev);
} else {
\_\_dev\_7segment\_led\_dio\_low(dev);
}
\_\_dev\_7segment\_led\_pulse(dev);
}
}
void \_\_dev\_7segments\_led\_set\_data(dev\_7segments\_led\_t \*dev, uint8\_t \*data,
dev\_7segments\_led\_display\_type\_t type) {
uint8\_t len = strlen(data);
if (len > dev->digits \* 2) { // 数据长度不能超过位数的2倍
return;
}
dev->display_buffer_len = len;
dev->display_type = type;
memcpy(dev->display_buffer, data, sizeof(uint8\_t) \* len);
}
void \_\_dev\_7segments\_led\_display\_number(dev\_7segments\_led\_t \*dev) {
uint8\_t len = dev->display_buffer_len; // 数字长度
uint8\_t dot_pos = 0; // 小数点位置
while (len) {
// 查找小数点位置
if (dev->display_buffer[len - 1] == '.') {
dot_pos++;
break;
}
len--;
}
len = dev->display_buffer_len;
if (len - dot_pos > dev->digits) { // 超过显示位数
for (uint8\_t i = 1; i <= dev->digits; i++) {
dev\_7segments\_led\_display\_at(dev, i, '-', false);
}
len = 0;
return;
}
uint8\_t pos = 1;
bool show_dot = false;
// 处理负号
while (len) {
if (dev->display_buffer[len - 1] == '-') {
dev\_7segments\_led\_display\_at(dev, pos, '-', show_dot);
pos++;
} else if (dev->display_buffer[len - 1] == '.') {
show_dot = true;
} else if (dev->display_buffer[len - 1] == ' ') {
pos++;
} else {
dev\_7segments\_led\_display\_at(dev, pos,
dev->display_buffer[len - 1] - 0x30, show_dot);
show_dot = false;
pos++;
}
len--;
if (pos > dev->digits) { // 超过显示位数截断显示
break;
}
}
}
void \_\_dev\_7segments\_led\_display\_char(dev\_7segments\_led\_t \*dev) {
uint8\_t len = dev->display_buffer_len;
uint8\_t pos = 1;
while (len) {
dev\_7segments\_led\_display\_at(dev, pos, dev->display_buffer[len - 1],
false);
pos++;
len--;
}
}
void \_\_dev\_7segments\_led\_display\_digit\_and\_char(dev\_7segments\_led\_t \*dev) {
uint8\_t len = dev->display_buffer_len; // 数字长度
uint8\_t pos = 1;
bool show_dot = false;
// 处理负号
while (len) {
if (dev->display_buffer[len - 1] == '-') {
dev\_7segments\_led\_display\_at(dev, pos, '-', show_dot);
pos++;
} else if (dev->display_buffer[len - 1] == '.') {
show_dot = true;
} else if (dev->display_buffer[len - 1] == ' ') {
pos++;
} else {
uint8\_t dat = dev->display_buffer[len - 1];
if (isdigit(dat)) {
dev\_7segments\_led\_display\_at(dev, pos, dat - 0x30, show_dot);
} else {
dev\_7segments\_led\_display\_at(dev, pos, dat, show_dot);
}
show_dot = false;
pos++;
}
len--;
if (pos > dev->digits) { // 超过显示位数截断显示
break;
}
}
}
|
