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Update documentation 

- Added schematics
pull/91/head
3d-gussner 2021-08-19 08:54:43 +02:00
parent a2a1b8a698
commit 586dd6362a
1 changed files with 22 additions and 20 deletions
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42
src/hal/shr16.h
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@ -7,31 +7,33 @@ namespace hal {
/// 16bit shift register (2x74595) interface
///
/// The pinout is hard coded as follows:
/// SHR16_CLK: signal d13 - PC7
/// SHR16_LAT: signal d10 - PB6
/// SHR16_DAT: signal d9 - PB5
/// 32u4 port Schematics
/// SHR16_CLK: signal D13 - PC7 U4 -> U2/U9 - SHCP and P6 - Pin2
/// SHR16_LAT: signal D10 - PB6 U4 -> U2/9 - STCP and P6 - Pin3
/// SHR16_DAT: signal D9 - PB5 U4 -> U2 - DS
///
/// Shift register outputs:
/// LEDS - hardcoded
/// SHR16_LEDG0 = 0x0100
/// SHR16_LEDR0 = 0x0200
/// SHR16_LEDG1 = 0x0400
/// SHR16_LEDR1 = 0x0800
/// SHR16_LEDG2 = 0x1000
/// SHR16_LEDR2 = 0x2000
/// SHR16_LEDG3 = 0x4000
/// SHR16_LEDR3 = 0x8000
/// SHR16_LEDG4 = 0x0040
/// SHR16_LEDR4 = 0x0080
/// LEDS - hardcoded 74HC595 Schematics
/// SHR16_LEDG4 = 0x0100 Q0 U9 -> D14 clostest LED to usb port J1
/// SHR16_LEDR4 = 0x0200 Q1 U9 -> D15
/// SHR16_LEDG3 = 0x0400 Q2 U9 -> D16
/// SHR16_LEDR3 = 0x0800 Q3 U9 -> D17
/// SHR16_LEDG2 = 0x1000 Q4 U9 -> D18
/// SHR16_LEDR2 = 0x2000 Q5 U9 -> D19
/// SHR16_LEDG1 = 0x4000 Q6 U9 -> D20
/// SHR16_LEDR1 = 0x8000 Q7 U9 -> D21
/// SHR16_LEDG0 = 0x0040 Q6 U2 -> D22
/// SHR16_LEDR0 = 0x0080 Q7 U2 -> D23 closest LED to Button S2
/// SHR16_LED_MSK = 0xffc0
///
/// TMC2130 Direction/Enable signals - hardcoded
/// SHR16_DIR_0 = 0x0001
/// SHR16_ENA_0 = 0x0002
/// SHR16_DIR_1 = 0x0004
/// SHR16_ENA_1 = 0x0008
/// SHR16_DIR_2 = 0x0010
/// SHR16_ENA_2 = 0x0020
/// 74HC595 Schematics
/// SHR16_DIR_0 = 0x0001 Q1 U2 -> U5 - DIR
/// SHR16_ENA_0 = 0x0002 Q2 U2 -> U5 - DRV-ENN
/// SHR16_DIR_1 = 0x0004 Q3 U2 -> U6 - DIR
/// SHR16_ENA_1 = 0x0008 Q4 U2 -> U6 - DRV-ENN
/// SHR16_DIR_2 = 0x0010 Q5 U2 -> U7 - DIR
/// SHR16_ENA_2 = 0x0020 Q6 U2 -> U7 - DRV-ENN
///
/// SHR16_DIR_MSK = (SHR16_DIR_0 + SHR16_DIR_1 + SHR16_DIR_2)
/// SHR16_ENA_MSK = (SHR16_ENA_0 + SHR16_ENA_1 + SHR16_ENA_2)