<div dir="auto">I think there is something with my module. I test it with an other ovms module and it works. <div>But thanks for your help. </div><div><br></div><div>Regards Thomas <br><br>Von meinem Huawei-Mobiltelefon gesendet</div></div><div style="line-height:1.5"><br><br>-------- Ursprüngliche Nachricht --------<br>Von: Michael Balzer <dexter@expeedo.de><br>Datum: Mi., 10. Juli 2019, 21:39<br>An: ovmsdev@lists.openvehicles.com<br>Betreff: Re: [Ovmsdev] max7317 input read<br><blockquote><div>
I've tried all ports now, all work as expected.<br />
<br />
Did you try other ports? Maybe your P6 is defective?<br />
<br />
Regards,<br />
Michael<br />
<br />
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<div>Am 10.07.19 um 12:21 schrieb Thomas
Heuer:<br />
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<pre>here a picture with 3.3v to egpio5
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<pre>Michael Balzer <a href="mailto:dexter@expeedo.de"><dexter@expeedo.de></a> hat am 10. Juli 2019 um 12:08 geschrieben:
I'll replicate your test with my module this evening. I did the test on EGPIO_8 routed to the DA26 connector, that worked correctly.
Regards,
Michael
Am 10.07.19 um 11:15 schrieb - -:
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<pre>i use the internal Expansion. And there is 3.3v when powered over USB.
pin 1 3.3v -> pin 18 EGPIO_5
pin 28 GND -> pin 18 EGPIO_5
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<pre>Michael Balzer <a href="mailto:dexter@expeedo.de"><dexter@expeedo.de></a> hat am 10. Juli 2019 um 11:03 geschrieben:
* Where do you contact EGPIO5?
* Where do you get 3.3V? External +3.3V is only present if you're powering from 12V
Am 10.07.19 um 10:50 schrieb - -:
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<pre>I have the egpio5 (port 6) pin on GND.
then in the shell: egpio input 6.
then the gpio5 (port 6) pin to 3.3V.
then in the shell: egpio input 6.
both return 0
Regards Thomas
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<pre>Michael Balzer <a href="mailto:dexter@expeedo.de"><dexter@expeedo.de></a> hat am 10. Juli 2019 um 10:40 geschrieben:
Then you're now doing something wrong. Please describe your test setup.
Regards,
Michael
Am 10.07.19 um 10:35 schrieb - -:
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<pre>Hi,
i have test it, but it seems not to work.
it return always 0 when i put the egpio to GND or 3.3v
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<pre>Michael Balzer <a href="mailto:dexter@expeedo.de">dexter@expeedo.de</a> hat am 9. Juli 2019 um 22:58 geschrieben:
I did some tests myself, it turned out there was more to do here.
First, the max7317 really needs 16 bits for every command. Second, the reads were done on the output level registers, inputs are mapped to bit fields in 0x0e & 0x0f. Third, the max7317 needs a deselect between the tx and the rx. No, really, I've tried even half duplex mode, the deselect really is necessary.
Fix is pushed. I've also added an "egpio input" shell command.
Regards,
Michael
Am 09.07.19 um 20:00 schrieb Michael Balzer:
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<pre>Thomas,
there may be a bug in the max7317 component:
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<pre>uint8_t max7317::Input(uint8_t port)
…
uint8_t* p = m_spibus->spi_cmd(m_spi, buf, 1, 1, port + 0x80);
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<pre>According to the max7317 specsheet the read operation needs a second (dummy) byte. So this should be…
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<pre>uint8_t* p = m_spibus->spi_cmd(m_spi, buf, 1, 2, port + 0x80, 0);
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<pre>Please try & report.
Regards,
Michael
Am 09.07.19 um 13:10 schrieb - -:
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<pre>Hello,
How can I read inputs from max7317.
when I try to log ESP_LOGD(TAG,"EGPIO5 input: %d", MyPeripherals->m_max7317->Input(MAX7317_EGPIO_5));
i get allways 0 when i put the egpio pin to GND or 3.3v
do i somthing wrong or does it not work.
Regards Thomas
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<pre>
--
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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<pre>--
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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