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dump.ino
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dump.ino
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// Dumps 25X04 serial flash chip
// furrtek 2019
#include <SPI.h>
#define PIN_CS 9
void setup() {
pinMode(PIN_CS, OUTPUT);
digitalWrite(PIN_CS, HIGH);
Serial.begin(115200);
SPI.begin();
SPI.setDataMode(SPI_MODE0);
delay(300);
}
void loop() {
Serial.println("Device ID:");
digitalWrite(PIN_CS, LOW);
SPI.transfer(0x9F); // Read JEDEC infos
Serial.print(SPI.transfer(0xFF), HEX);
Serial.print(SPI.transfer(0xFF), HEX);
Serial.println(SPI.transfer(0xFF), HEX);
digitalWrite(PIN_CS, HIGH);
Serial.println("Enable logging and press any key to dump");
while (!Serial.read()) {};
digitalWrite(PIN_CS, LOW);
SPI.transfer(0x03); // Read
SPI.transfer(0x00); // Start address
SPI.transfer(0x00);
SPI.transfer(0x00);
for (uint32_t c = 0; c < 524288UL; c++)
Serial.write(SPI.transfer(0xFF));
digitalWrite(PIN_CS, HIGH);
delay(300);
}