Method write

SerialFlashChip.cpp:181–216

}

void SerialFlashChip::write(uint32_t addr, const void *buf, uint32_t len)
{
	const uint8_t *p = (const uint8_t *)buf;
	uint32_t max, pagelen;

	 //Serial.printf("WR: addr %08X, len %d\n", addr, len);
	do {
		if (busy) wait();
		SPIPORT.beginTransaction(SPICONFIG);
		CSASSERT();
		// write enable command
		SPIPORT.transfer(0x06);
		CSRELEASE();
		max = 256 - (addr & 0xFF);
		pagelen = (len <= max) ? len : max;
		 //Serial.printf("WR: addr %08X, pagelen %d\n", addr, pagelen);
		delayMicroseconds(1); // TODO: reduce this, but prefer safety first
		CSASSERT();
		if (flags & FLAG_32BIT_ADDR) {
			SPIPORT.transfer(0x02); // program page command
			SPIPORT.transfer16(addr >> 16);
			SPIPORT.transfer16(addr);
		} else {
			SPIPORT.transfer16(0x0200 | ((addr >> 16) & 255));
			SPIPORT.transfer16(addr);
		}
		addr += pagelen;
		len -= pagelen;
		do {
			SPIPORT.transfer(*p++);
		} while (--pagelen > 0);
		CSRELEASE();
		busy = 4;
		SPIPORT.endTransaction();
	} while (len > 0);
}

void SerialFlashChip::eraseAll()
{