Cansat
/
esp32_Adafruit_BusIO
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fix wrong exmaple

This commit is contained in:
Ladyada 2019-08-29 15:00:58 -04:00
parent ef1a09d38f
commit 85577e9f2e
1 changed files with 10 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
examples/spi_readwrite/i2c_readwrite.ino → examples/spi_readwrite/spi_readwrite.ino
View File

@ -1,25 +1,23 @@
#include <Adafruit_I2CDevice.h> #include <Adafruit_SPIDevice.h>
#define I2C_ADDRESS 0x60 #define SPIDEVICE_CS 10
Adafruit_I2CDevice i2c_dev = Adafruit_I2CDevice(I2C_ADDRESS); Adafruit_SPIDevice spi_dev = Adafruit_SPIDevice(SPIDEVICE_CS);
void setup() { void setup() {
while (!Serial) { delay(10); } while (!Serial) { delay(10); }
Serial.begin(115200); Serial.begin(115200);
Serial.println("I2C device read and write test"); Serial.println("SPI device read and write test");
if (!i2c_dev.begin()) { if (!spi_dev.begin()) {
Serial.print("Did not find device at 0x"); Serial.println("Could not initialize SPI device");
Serial.println(i2c_dev.address(), HEX);
while (1); while (1);
} }
Serial.print("Device found on address 0x");
Serial.println(i2c_dev.address(), HEX);
uint8_t buffer[32]; uint8_t buffer[32];
// Try to read 32 bytes // Try to read 32 bytes
i2c_dev.read(buffer, 32); spi_dev.read(buffer, 32);
Serial.print("Read: "); Serial.print("Read: ");
for (uint8_t i=0; i<32; i++) { for (uint8_t i=0; i<32; i++) {
Serial.print("0x"); Serial.print(buffer[i], HEX); Serial.print(", "); Serial.print("0x"); Serial.print(buffer[i], HEX); Serial.print(", ");
@ -27,8 +25,8 @@ void setup() {
Serial.println(); Serial.println();
// read a register by writing first, then reading // read a register by writing first, then reading
buffer[0] = 0x0C; // we'll reuse the same buffer buffer[0] = 0x8F; // we'll reuse the same buffer
i2c_dev.write_then_read(buffer, 1, buffer, 2, false); spi_dev.write_then_read(buffer, 1, buffer, 2, false);
Serial.print("Write then Read: "); Serial.print("Write then Read: ");
for (uint8_t i=0; i<2; i++) { for (uint8_t i=0; i<2; i++) {
Serial.print("0x"); Serial.print(buffer[i], HEX); Serial.print(", "); Serial.print("0x"); Serial.print(buffer[i], HEX); Serial.print(", ");