Hello all, ??????????? Do I need to disable Interrupt while Erasing and Writing to the EEPROM ???????? Read on if you want...

Hello all, ??????????? Do I need to disable Interrupt while Erasing and Writing to the EEPROM ???????? Read on if you want to know why this question is being asked. I have a problem that I believe is caused by EEPROM (inside the micro, 68HC11K4) corruption.

The HC11 datasheet indicates that the minimum high voltage (VIH) for any digital input pin (excluding RESET) is 3.5VDC (0.7 X VDD),...

The HC11 datasheet indicates that the minimum high voltage (VIH) for any digital input pin (excluding RESET) is 3.5VDC (0.7 X VDD), but I have seen many designs that use 3.3VDC devices (FPGAs, etc.) driving HC11 input pins with no pullups to 5V that work fine. Has anyone tested t

I am supporting a legacy HC11 product with 12K code built on the Archimedes Compiler platform. The company no longer exists, the...

I am supporting a legacy HC11 product with 12K code built on the Archimedes Compiler platform. The company no longer exists, the tool is DOS based, and the debugging utility is rather limited. IAR now supports this product and since no 2 compilers seem to use the

What are the differences between HC11 & and the new HCS08? Your response is appreciated. Regards Leo ...

What are the differences between HC11 & and the new HCS08? Your response is appreciated. Regards Leo

I'm searching for an HC11P1 C Compiler. We have been using Introl C 4.1 with the HC11F1 for a while. I'm starting an new...

I'm searching for an HC11P1 C Compiler. We have been using Introl C 4.1 with the HC11F1 for a while. I'm starting an new project using the HC11P1 and I just discovered that Introl 4.1 does not support this variant correctly, and www.introl.com is gone, making purchasing an upg

I am supporting a design that utilizes the AD converter. The AD reference voltage in this design can be varied from 0.4 V...

I am supporting a design that utilizes the AD converter. The AD reference voltage in this design can be varied from 0.4 V to 4.0 V changing the sensitivity range. The AD input voltage can be as high as 11V. I don't see a maximum input

Hi, I need a simple development system for the 68hc11 as described in the post heading. Can anyone point me to a source for...

Hi, I need a simple development system for the 68hc11 as described in the post heading. Can anyone point me to a source for this. Preferably, but not necessarily, freeware. Thanks, Mike

Hi All, I'm implementing a communications routine between a PC and a 68hc11 via the SCI port. I want to use CRC-16 error...

Hi All, I'm implementing a communications routine between a PC and a 68hc11 via the SCI port. I want to use CRC-16 error checking on the link. The code I have in the 68hc11 is all written in assembler. Does anyone have an example of how to implement this ? I've seen a

----- Original Message ----- From: "Kerry Berland" <> To: <> > Regarding the 68HC811-- > > There used to be a significant...

----- Original Message ----- From: "Kerry Berland" <> To: <> > Regarding the 68HC811-- > > There used to be a significant hole in Motorola's line-up, as between > the 68HC11 product line, and the 68HC12, and a lot of people

hello everyone im trying to connect the 68hc24 pru to a hc11e1. i have made the follwoing connections and still cant get the pru to...

hello everyone im trying to connect the 68hc24 pru to a hc11e1. i have made the follwoing connections and still cant get the pru to interface with the hc11. 68hc24 68hc11 pru mode pin 43: is tied to plus 5 volts AS pin 42: to stra/AS hc11 reset pin 39: reset pin