static async Task AlterLockAsync(this Samba nxt, int regionNum, Commands cmd)
{
var w = 0x5A000000 | (uint)((64 * regionNum) << 8);
w += (uint)cmd;
await nxt.WaitReadyAsync();
/* Flash mode register: FCMN 0x5, FWS 0x1
* Flash command register: KEY 0x5A, FCMD = clear-lock-bit (0x4)
* Flash mode register: FCMN 0x34, FWS 0x1
*/
await nxt.WriteWordAsync(0xFFFFFF60, 0x00050100);
await nxt.WriteWordAsync(0xFFFFFF64, w);
await nxt.WriteWordAsync(0xFFFFFF60, 0x00340100);
}
public static async Task FlashPrepareAsync(this Samba nxt)
{
// Put the clock in PLL/2 mode
await nxt.WriteWordAsync(0xFFFFFC30, 0x7);
// Unlock the flash chip
await nxt.UnlockAllRegionsAsync();
// Send the flash writing routine
await nxt.SendFileAsync(0x202000, Nxt.Flash.Bin);
}
static async Task FlashBlockAsync(this Samba nxt, uint blockNum, byte[] buf)
{
// Set the target block number
await nxt.WriteWordAsync(0x202300, blockNum);
// Send the block to flash
await nxt.SendFileAsync(0x202100, buf);
// Jump into the flash writing routine
await nxt.GoAsync(0x202000);
}