mirror of
https://github.com/m5stack/m5-docs.git
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update api tf card
This commit is contained in:
塩入孔章
+2
-2
@@ -5,8 +5,8 @@
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|**[System](en/api/system)** | **[Speaker](en/api/speaker)** |
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|**[LCD](en/api/lcd)** | **[ボタン](en/api/button)** |
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|**[IMU sensor(MPU9250)](en/api/mpu9250)** | **[TF Card](en/api/tf)** |
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|**[LCD](en/api/lcd)** | **[Button](en/api/button)** |
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|**[IMU sensor(MPU9250)](en/api/mpu9250)** | **[TF card](en/api/tf)** |
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<!-- ## [LCD](en/api_reference/micropython/api_lcd) -->
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<!-- ## [Peripherals](en/api_reference/peripherals/api_gpio)
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+45
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@@ -1,62 +1,72 @@
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# TF 卡
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# TF card
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## begin()
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**函数原型：**
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**Syntax:**
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<mark>begin(cspin);</mark>
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```arduino
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boolean begin(uint8_t cspin);
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```
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**功能：TF 卡初始化。**
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**Description:**
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| 参数 | 描述 |
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| --- | --- |
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| cspin | TF 的片选引脚 (默认是 SPI 的 SS 引脚)，可选 |
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This function initialize TF card.
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| Argument | Description | Type |
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| --- | --- | -- |
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| cspin | chip select line (defaults SS line of SPI bus) | uint8_t |
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**Sample:**
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**例程**
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```arduino
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#include <M5Stack.h>
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M5.begin();
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SD.begin();
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void setup() {
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SD.begin();
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}
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```
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## open()
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**函数原型：**
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**Syntax:**
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<mark>File open(const char *filepath, uint8_t mode;</mark>
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```arduino
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File open(const char *filename, uint8_t mode = FILE_READ);
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```
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**功能：以指定模式打开指定文件。返回值：文件句柄。**
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**Description:**
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| 参数 | 描述 |
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| --- | --- |
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| filepath | 文件路径 |
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| mode | 打开模式 |
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This function open the file.
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| Argument | Description | Type |
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| --- | --- | -- |
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| filepath | path to file | const char * |
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| mode | read / write / rw (optional) | uint8_t |
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**Sample:**
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**例程**
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```arduino
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/*
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提前通过 PC 将 datalog.txt 文件拷贝到 TF 卡内
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display contents of hello.txt in TF card to M5 screen.
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*/
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#include <M5Stack.h>
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void setup(){
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M5.begin();
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Serial.begin(115200);
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if (!SD.begin(chipSelect)) {
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Serial.println("Card failed, or not present");
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while(1);
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}
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Serial.println("card initialized.");
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File dataFile = SD.open("/datalog.txt", FILE_WRITE);
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if (dataFile)
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Serial.println("open datalog.txt successfully");
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else
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Serial.println("error opening datalog.txt");
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void setup() {
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M5.begin();
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if (!SD.begin()) {
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M5.Lcd.println("Card failed, or not present");
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while (1);
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}
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Serial.println("TF card initialized.");
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File f = SD.open("/hello.txt", FILE_READ);
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if (f) {
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M5.Lcd.print(f.read());
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f.close();
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} else {
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M5.Lcd.println("open error hello.txt");
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}
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}
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void loop(){
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void loop() {
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}
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```
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+45
-35
@@ -1,62 +1,72 @@
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# TF 卡
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# TF card
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## begin()
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**函数原型：**
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**説明:**
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<mark>begin(cspin);</mark>
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TFカード機能が使用可能になります。
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**功能：TF 卡初始化。**
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**構文:**
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| 参数 | 描述 |
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| --- | --- |
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| cspin | TF 的片选引脚 (默认是 SPI 的 SS 引脚)，可选 |
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```arduino
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boolean begin(uint8_t cspin);
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```
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| 引数 | 説明 | 型 |
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| --- | --- | -- |
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| cspin | chip select line (defaults SS line of SPI bus) | uint8_t |
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**使用例:**
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**例程**
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```arduino
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#include <M5Stack.h>
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M5.begin();
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SD.begin();
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void setup() {
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SD.begin();
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}
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```
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## open()
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**函数原型：**
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**説明:**
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<mark>File open(const char *filepath, uint8_t mode;</mark>
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ファイルを開きます。
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**功能：以指定模式打开指定文件。返回值：文件句柄。**
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**構文:**
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| 参数 | 描述 |
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| --- | --- |
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| filepath | 文件路径 |
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| mode | 打开模式 |
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```arduino
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File open(const char *filename, uint8_t mode = FILE_READ);
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```
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| 引数 | 説明 | 型 |
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| --- | --- | -- |
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| filepath | path to file | const char * |
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| mode | read / write / rw (optional) | uint8_t |
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**使用例:**
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**例程**
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```arduino
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/*
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提前通过 PC 将 datalog.txt 文件拷贝到 TF 卡内
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M5にTFカードのhello.txtの中身を表示する。
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*/
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#include <M5Stack.h>
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void setup(){
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M5.begin();
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Serial.begin(115200);
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if (!SD.begin(chipSelect)) {
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Serial.println("Card failed, or not present");
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while(1);
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}
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Serial.println("card initialized.");
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File dataFile = SD.open("/datalog.txt", FILE_WRITE);
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if (dataFile)
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Serial.println("open datalog.txt successfully");
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else
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Serial.println("error opening datalog.txt");
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void setup() {
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M5.begin();
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if (!SD.begin()) {
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M5.Lcd.println("Card failed, or not present");
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while (1);
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}
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Serial.println("TF card initialized.");
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File f = SD.open("/hello.txt", FILE_READ);
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if (f) {
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M5.Lcd.print(f.read());
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f.close();
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} else {
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M5.Lcd.println("open error hello.txt");
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}
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}
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void loop(){
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void loop() {
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}
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```
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+18
-18
@@ -16,9 +16,9 @@
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```arduino
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#include <M5Stack.h>
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M5.begin();
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SD.begin();
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void setup() {
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SD.begin();
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}
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```
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## open()
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@@ -41,22 +41,22 @@ SD.begin();
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*/
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#include <M5Stack.h>
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void setup(){
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M5.begin();
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Serial.begin(115200);
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if (!SD.begin(chipSelect)) {
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Serial.println("Card failed, or not present");
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while(1);
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}
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Serial.println("card initialized.");
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File dataFile = SD.open("/datalog.txt", FILE_WRITE);
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if (dataFile)
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Serial.println("open datalog.txt successfully");
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else
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Serial.println("error opening datalog.txt");
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void setup() {
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M5.begin();
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if (!SD.begin()) {
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M5.Lcd.println("Card failed, or not present");
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while (1);
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}
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Serial.println("TF card initialized.");
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File f = SD.open("/hello.txt", FILE_READ);
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if (f) {
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M5.Lcd.print(f.read());
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f.close();
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} else {
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M5.Lcd.println("open error hello.txt");
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}
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}
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void loop(){
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void loop() {
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}
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```
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