| Author | beginning argument ( Replies received: 2 ) |
| Spectre |
 Posted 11-07-2008 at 13:39 |
Registered on :
11-06-2005
From Italy
Messages : 147
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Hi to all,
I'm programming an ST7LITEU05B6 without problem with an rlink(raisonance).
I have connected a 3k3 resistor in series of the reset pin for insulation (as written in the datasheet).
I have a problem when I try to set the reset pin as output trought the muxcr1 and muxcr2 registers.
It seems to work correctly as output but the rlink told me that there is a problem on the reset pin and I can't reprogram the microcontroller.
I drive an npn transistor without pull-up resistor but with a pull down 10K resistor between the base and the emitter.
thanks for ideas
Spectre
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| laubey |
Posted 11-07-2008 at 15:42 |
Registered on :
06-22-2005
From France
Messages : 114
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Hi,
The Rlink needs to reset the chip to communicate with it in ICC. Once you have configure the reset pin as output you can no more reset the device, so you need to power off the device, plug the Rlink and power on again.
Best regards
Laubey
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| Spectre |
Posted 14-07-2008 at 15:41 |
Registered on :
11-06-2005
From Italy
Messages : 147
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Thanks laubey.
bye
Spectre
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about reset/output pin on the 8 pin ST7LITEU05B6 micro