STBootLib.STBoot.Erase C# (CSharp) Méthode

        private async Task Erase(uint pageNumber)
        {
            /* command word */
            var tx = new byte[5];
            /* temporary storage for response bytes */
            var tmp = new byte[1];

            /* command code */
            tx[0] = (byte)STCmds.ERASE;
            /* checksum */
            tx[1] = ComputeChecksum(tx, 0, 1);

            /* erase single page */
            tx[2] = 0;
            /* set page number */
            tx[3] = (byte)pageNumber;
            /* checksum */
            tx[4] = (byte)~ComputeChecksum(tx, 2, 2);

            /* try to send command and wait for response */
            try {
                /* send bytes */
                await SerialWrite(tx, 0, 2);
                /* wait for response code */
                await SerialRead(tmp, 0, 1);
                /* check response code */
                if (tmp[0] != (byte)STResps.ACK)
                    throw new STBootException("Command Rejected");

                /* send address */
                await SerialWrite(tx, 2, 3);
                /* wait for response code */
                await SerialRead(tmp, 0, 1);
                /* check response code */
                if (tmp[0] != (byte)STResps.ACK)
                    throw new STBootException("Page Rejected");

                /* oops, something baaad happened! */
            } catch (Exception) {
                /* release semaphore */
                sem.Release();
                /* re-throw */
                throw;
            }

            /* release semaphore */
            sem.Release();
        }