<div dir="ltr">RS232 is actually +/- 12V! My recollection is that the E3 runs at 0V/5V (I described it as TTL back in 2003). A 3.3V serial converter might work, I couldn't say.<br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 3 Apr 2019 at 20:52 Nick Griffin <<a href="mailto:span1922@live.com" target="_blank">span1922@live.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>On your site..<br>
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<div><span style="text-align:justify;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;font-family:Alegreya,serif;font-size:18px;font-style:normal;font-weight:400;word-spacing:0px;float:none;display:inline!important;white-space:normal;text-decoration-style:initial;text-decoration-color:initial">“In
order to talk to the E2, you need the appropriate cable. Irritatingly, while the E2 has a serial port, it runs at TTL line levels not RS232 levels. This means that if you're going to connect it to a PC, you need a line level converter”<br>
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<font face="Calibri" style="font-size:12pt">So I can use a </font><font face="Segoe UI Emoji Regular" size="3"><font face="Calibri" style="font-size:12pt">CPC 2102 USB to TTL serial converter because its a
</font><font face="Calibri" size="4" style="font-size:12pt">line level converter… 😊 and its RX line is 3.3 volt, this can’t take 5 volts because it could blow the UART0…?</font></font></span></div>
<div><span style="text-align:justify;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;font-family:Alegreya,serif;font-size:18px;font-style:normal;font-weight:400;word-spacing:0px;float:none;display:inline!important;white-space:normal;text-decoration-style:initial;text-decoration-color:initial"><font size="4"></font></span><br>
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<div>Spanner..</div>
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</div></div></div><div dir="ltr"><div dir="ltr" style="font-family:'Calibri','Segoe UI','Meiryo','Microsoft YaHei UI','Microsoft JhengHei UI','Malgun Gothic','sans-serif';font-size:12pt">
<div style="padding-top:5px;border-top-color:rgb(229,229,229);border-top-width:1px;border-top-style:solid">
<div><font face=" 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei UI', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif'" style="line-height:15pt;letter-spacing:0.02em;font-family:"Calibri","Segoe UI","Meiryo","Microsoft YaHei UI","Microsoft JhengHei UI","Malgun Gothic","sans-serif";font-size:12pt"><b>From:</b> <a href="mailto:dg@cowlark.com" target="_blank">David
Given</a><br>
<b>Sent:</b> Wednesday, 3 April 2019 18:52<br>
<b>To:</b> <a href="mailto:e3-hacking@earth.li" target="_blank">Discussion of the Amstrad E3 emailer hardware/software</a></font></div>
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<div dir="ltr">I've got a tool which speaks the PBL protocol and will let you read and write the flash: <a href="https://nam04.safelinks.protection.outlook.com/?url=http://cowlark.com/amstrad/&data=02%7c01%7c%7c0ff5e97479d549450d8208d6b85d225c%7c84df9e7fe9f640afb435aaaaaaaaaaaa%7c1%7c0%7c636899107478251836&sdata=1rV57mYpj1Hs38RqCM3fqnEhqzLh5F3vWhwQWqW9AuM%3D&reserved=0" target="_blank">http://cowlark.com/amstrad/</a>
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<div>It's also got details of the serial pinout.</div>
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<div class="gmail_attr" dir="ltr">On Wed, 3 Apr 2019 at 19:07 Nick Griffin <<a href="mailto:span1922@live.com" target="_blank">span1922@live.com</a>> wrote:<br>
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<div>As far as I know when you connect this to serial you don’t get a console, like if you connect TheC64 Mini to Putty using a CPC 2102 USB to TTL serial convertor, you can log on with your root user and password so you can add files, change games and edit
files and that ,TheC64 Mini uses Uboot to boot up with not PBL so it must be the PBL that's stopping the console coming up so if we could hack the PBL (Primary Boot Loader) and keep the firmware on the NAND so its still boots up with Amstrad E3 logo and that,
we need to see the system files and see what can be changed. PBL is on the NOR Flash and the Kernel and System is on the NAND Flash. I don’t know anything about PBL so we need someone who <a href="https://nam04.safelinks.protection.outlook.com/?url=http://does.it&data=02%7c01%7c%7c0ff5e97479d549450d8208d6b85d225c%7c84df9e7fe9f640afb435aaaaaaaaaaaa%7c1%7c0%7c636899107478261846&sdata=cKbkujL//PuqTj5W5Dtacrb2GoLLKmqXMA81FjPrIDE%3D&reserved=0" target="_blank">does.it</a>
all most works the same as TheC64 Mini,(Its a small Commodore 64, Mini Console, its here..
<a href="https://nam04.safelinks.protection.outlook.com/?url=https://www.c64-wiki.com/wiki/THEC64Mini&data=02%7c01%7c%7c0ff5e97479d549450d8208d6b85d225c%7c84df9e7fe9f640afb435aaaaaaaaaaaa%7c1%7c0%7c636899107478271851&sdata=bd45fNPeGF/ASugX1AaQYewd6OIAxHko0Z9iDRsRAbI%3D&reserved=0" target="_blank">
https://www.c64-wiki.com/wiki/THEC64Mini</a>) The mini has 2 partitions, One for Uboot and other for the Kernel and System. but only has one chip, NAND Flash, its made by Toshiba too.. 😊. Amstrad E3 has 2 chips NOR and NAND Flash. and is using a different
Boot loader.<br>
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Oh.. Can I use my CPC 2102 USB to TTL serial converter to connect to the serial on the E3..? this is a pic of it here..
<a href="https://nam04.safelinks.protection.outlook.com/?url=https://sc02.alicdn.com/kf/HTB11eb9PFXXXXcLaXXXq6xXFXXXd/CP2102-USB-2-0-to-TTL-UART.jpg_350x350.jpg&data=02%7c01%7c%7c0ff5e97479d549450d8208d6b85d225c%7c84df9e7fe9f640afb435aaaaaaaaaaaa%7c1%7c0%7c636899107478281862&sdata=P8EsfPfMK3uzbtWcuKbOcwf1gTPEVk3IFhNWzhTzLIk%3D&reserved=0" target="_blank">
<u><font color="#0066cc">https://sc02.alicdn.com/kf/HTB11eb9PFXXXXcLaXXXq6xXFXXXd/CP2102-USB-2-0-to-TTL-UART.jpg_350x350.jpg</font></u></a> I have used it on my TheC64 Mini and my Gotek Drive.<br>
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<div>Spanner..<br>
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