MC68331 with sram

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Computerbastler
Junior Member
Posts: 1
Joined: Tue Aug 01, 2023 11:43 am

MC68331 with sram

Post by Computerbastler »

have Atemga48pv is via BDM to MC68331 conectet on Mainbord the Atemga48pv is init the cpu no eprom eonly sram for programm 1MB
I listened to the BDM commands with logic analyzer
I'm missing the appropriate config for usb NT

Log form Atemga48pv >>>> to MC68331

Code: Select all

//Sent Bits: 93398 | Recv Bits: 93398
WSREG SSP 0x00100000
NOP
WSREG SFC 0x00000005
NOP
WSREG DFC 0x00000005
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WSREG USP 0xD27B7159
NOP
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GO
Last edited by Computerbastler on Wed Sep 20, 2023 11:25 pm, edited 1 time in total.
usbbdm
Junior Member
Posts: 8994
Joined: Mon Jul 18, 2005 9:33 pm

Re: MC68331 with sram

Post by usbbdm »

You can simply use setram to put the data you want to ram.
Computerbastler
Junior Member
Posts: 1
Joined: Tue Aug 01, 2023 11:43 am

Re: MC68331 with sram

Post by Computerbastler »

I have to do init because I have to pull out the mass because there is an atmel qausi pulse on the DSI skin

and usb nt yes cpu reset does so all registers are back to 0

Code: Select all

<Test>
	<Name>1MB</Name>
	<Protocol>BDM</Protocol>
	<Endian>Big</Endian>
	<Speed>0x2</Speed>
	<Cat>DishIrd</Cat>
	<Memorys>
		<Memory>
			<Name>Ram</Name>
			<Type>0</Type>
			<Address>0x00000000</Address>
			<Size>0x00100000</Size>
		</Memory>
	</Memorys>
	 <Inits>
                <Init><Address>0x00FFFA5C</Address><Value>0x0007</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA00</Address><Value>0x40C5</Value><Bytes>2</Bytes></Init>
                <Init><Address>0x00FFFA04</Address><Value>0x7F05</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA00</Address><Value>0x40C5</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA20</Address><Value>0x0000</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA00</Address><Value>0x40C5</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA44</Address><Value>0x3FFF</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA46</Address><Value>0x03FD</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA48</Address><Value>0x0007</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA00</Address><Value>0x40C5</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA4A</Address><Value>0x6C70</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA4C</Address><Value>0x0007</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA4E</Address><Value>0x7470</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA58</Address><Value>0x0007</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA5A</Address><Value>0x5C70</Value><Bytes>2</Bytes></Init>
		<Init><Address>0x00FFFA5C</Address><Value>0x0007</Value><Bytes>2</Bytes></Init>
	</Inits>
</Test>
usbbdm
Junior Member
Posts: 8994
Joined: Mon Jul 18, 2005 9:33 pm

Re: MC68331 with sram

Post by usbbdm »

You have no idea what u-Link NT is capable of. It is initially a development tool for me. The programming is just byproduct.
Computerbastler
Junior Member
Posts: 1
Joined: Tue Aug 01, 2023 11:43 am

Re: MC68331 with sram

Post by Computerbastler »

the configuration is correct ?
usbbdm
Junior Member
Posts: 8994
Joined: Mon Jul 18, 2005 9:33 pm

Re: MC68331 with sram

Post by usbbdm »

You need my remote help. You are developing the device. You need to know more than just programming the device. Type help to see what is available for you. You just need basic config then in development mode.
Computerbastler
Junior Member
Posts: 1
Joined: Tue Aug 01, 2023 11:43 am

Re: MC68331 with sram

Post by Computerbastler »

This is a database board from a money gaming machine.
As I said, this is the Atmel 48pv which is connected directly via BDM to the MC68331 and sets the registers via BDM
The problem is that Atmel has to be rewritten because it deletes itself, making the circuit board useless
a safety circuit
next to the borsch protection boards and light sensor
That's why SRAM and not flash or EPROM only have something to do with safety functions
usbbdm
Junior Member
Posts: 8994
Joined: Mon Jul 18, 2005 9:33 pm

Re: MC68331 with sram

Post by usbbdm »

You can use command "setram" if you want to put sram.
But there are several other commands that will help you to do what you want.
Type "help" to see what commands are available for you.
Computerbastler
Junior Member
Posts: 1
Joined: Tue Aug 01, 2023 11:43 am

Re: MC68331 with sram

Post by Computerbastler »

usbbdm wrote: ↑Fri Sep 29, 2023 7:18 pm You can use command "setram" if you want to put sram.
But there are several other commands that will help you to do what you want.
Type "help" to see what commands are available for you.
Ist woking config ist corekt πŸ˜… have found on Bord SRAM CS to pb4 on atmel48pv tge atmel muss enabel the SRAM ... Ohr Manuel to ground the chip select Pin its woking
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