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Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#2764
enyc contributed great inspiration (IRC) and Werner revisited pinmux and we plan to come up with a dedicated USB interface on HackerBus primary connector (2 GPIO_x function reassignment). The OTG USB will have landing zone pads for pogopins mounted on user circuit, instead of that 3-pin SMT connector. Our recommendation is to leave OTG alone and rather use the dedicated USB host interface on hackerbus, for sake of less conflicts with original purpose of the OTG interface
Comments solicited

[edit] revised HB main connector pin assignment:
Code:
VBAT_RAW | VBAT_RAW
USB_HB_DP|USB_HB_DM
         GND   |  GND      
  NFC_GND | NFC_ANT
         GND   |  GND 
VBUS_OTG | VBAT_SWITCHED
GPIO_d/3V3 | GPIO_c
      GPIO_b | GPIO_a
   UART_TX | UART_RX 
 UART_CTS | UART_RTS
/j

Last edited by joerg_rw; 2016-01-27 at 19:54.
 

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