here a picture with 3.3v to egpio5
Michael Balzer <dexter@expeedo.de> 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 - -:
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
Michael Balzer <dexter@expeedo.de> 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 - -:
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
Michael Balzer <dexter@expeedo.de> 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 - -:
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 > Michael Balzer dexter@expeedo.de 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: > > Thomas, > > > > there may be a bug in the max7317 component: > > > uint8_t max7317::Input(uint8_t port) > > > … > > > uint8_t* p = m_spibus->spi_cmd(m_spi, buf, 1, 1, port + 0x80); > > According to the max7317 specsheet the read operation needs a second (dummy) byte. So this should be… > > > uint8_t* p = m_spibus->spi_cmd(m_spi, buf, 1, 2, port + 0x80, 0); > > Please try & report. > > > > Regards, > > Michael > > > > > > Am 09.07.19 um 13:10 schrieb - -: > > > 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
-- Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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