Posted by ajit You are correct it is not entering boot mode. But the suggestion you made of having MD1 and MD2 low puts it into mode 9 which is not listed in the 2633 hardware manual as a valid mode. what I think I need is mode 11 boot mode with advanced single chip mode i.e., MD0 and MD1 high, MD2 low and FWE high and then reset. See if you have any other suggestions I am messing with this with no clue, I can see the chip oscillator is working at 20Mhz but I cant flash. Thanks in advance --Previous Message--
on April 9, 2004, 0:03:10, in reply to "Re: Direct serial connection H8S2633"
64.180.76.106
Hi and thanks for the response
: Hi,
: The H8S device is not entering boot
: mode correctly.
: To put the device into boot mode the
: mode pins should be set as below.
: MD1 = 0
: MD2 = 0
: The FWE pin should be high and the
: device reset.
: If after checking these settings it
: still doesn't work make sure that Rx
: on the H8S is connected (via an RS232
: level shifter) to Tx on the PC and Tx
: on the H8S is connected (via an RS232
: level shifter) to Rx on the PC.
: GA
: --Previous Message--
: I am using a prototype of my board
: with
: FDK3.1 with direct serial connection
: and am not able to connect, get the
: following message
: Connecting to device 'H8S/2633F' on
: 'COM1'
: Configuration: 'BOOT Mode' connection
: - using emulated interface
: Opening port 'COM1' ...
: Loading Comms DLL
: Loaded Comms DLL
: Initiating BOOT SCI sequence
: Attempting 9600
: Attempting 4800
: Attempting 2400
: Attempting 1200
: Error No 15024: Boot failed
: Unloaded Comms DLL
: I am using RX, TX and GND pins only.
: Any suggestions?
: I am pulling reset low,
: then pulling MD2 low and FWE high
: manually and taking reset high and
: starting the flash sequence with no
: result
: I can see RX trying to autoadjust
: going into RX pin SCI2 channel. There
: is no response on TX pin SCI2 channel
: .
:
: :
:
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