TS-7250-V3 MikroBus Header

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Revision as of 09:43, 6 October 2021 by Mark (talk | contribs)

The Mikrobus header is a 0.1" pitch 2x8 header which supports the Mikroe Click board ecosystem. This header features 3.3V, 5V, SPI, GPIO, ADC, PWM, a UART, and PWM. All IO are 3.3V tolerant.

By default all of these headers default to their non-gpio functions. These can be changed in the FPGA syscon register 0x08. For example: 

# Make all mikrobus header pins GPIO:
peekpoke 32 0x50004008 0xF0

# Set only SPI to GPIO:
peekpoke 32 0x50004008 0x10
Signals Pin Layout
Pin Signal
1 #FPGA_ADC / GPIO Bank 7 IO 1 [1]
2 (MIKRO_RESET#) GPIO Bank 7 IO 0 [2]
3 spidev 5.0 CS# / GPIO Bank 7 IO 5
4 spidev 5.0 CLK / GPIO Bank 7 IO 6
5 spidev 5.0 MISO / GPIO Bank 7 IO 7
6 spidev 5.0 MOSI / GPIO Bank 7 IO 8
7 3.3V
8 GND
9 GND
10 5V
11 /dev/i2c-2 DAT / GPIO Bank 7 IO 11
12 /dev/i2c-2 CLK / GPIO Bank 7 IO 12
13 ttymxc6 TXD / GPIO Bank 7 IO 9
14 ttymxc6 RXD / GPIO Bank 7 IO 10
15 FPGA IRQ 18 / GPIO Bank 7 IO 2
16 MIKRO_PWM / GPIO Bank 7 IO 4

TS-7250-V3-Mikrobus Header.svg

  1. ↑ This signal does not require a mux to use as a GPIO or ADC. To use the ADC signal the GPIO should be an input which is the reset default.
  2. ↑ This signal is pulled high, but your specific click card may require a specific reset duration.
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