315 lines
13 KiB
Plaintext
315 lines
13 KiB
Plaintext
README.txt
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==========
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This is the README file for the NuttX port to the 16z board. The 16z board
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is based on the ZiLOG ZNEOZ16F2811AL20EG part. See https://github.com/toyaga/16z
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for further information.
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Contents
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========
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- GPIO Configuration
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- ZDS-II Compiler Versions
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- Patches
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- Serial Console
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- LEDs
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- RAM
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- Selecting Configurations
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- Configuration Sub-directories
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GPIO Configuration
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==================
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--------------------------- ------ --------------------------------------------
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GPIO SIGNAL On-Board Connections
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--------------------------- ------ --------------------------------------------
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PA0/T0IN/T0OUT/DMA0REQ GP8 PS/2 / GPIO, Expansion slots
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PA1/T0OUT/DMA0ACK GP9 PS/2 / GPIO, Expansion slots
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PA2/DE0/FAULTY ~INTI Power section, RF transceiver (1)
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PA3/CTS0/FAULT0 ~INTX Expansion slots
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PA4/RXD0/CS1 RXD MAX3232D RS-232
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PA5/TXD0/CS2 TXD MAX3232D RS-232
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PA6/SCL/CS3 SCL RTC / UID, Expansion slots
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PA7/SDA/CS4 SDA RTC / UID, Expansion slots
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--------------------------- ------ --------------------------------------------
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PB0/ANA0/T0IN0 GP0 Expansion slots
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PB1/ANA1/T0IN1 GP1 Expansion slots
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PB2/ANA2/T0IN2 GP2 Expansion slots
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PB3/ANA3/OPOUT GP3 Expansion slots
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PB4/ANA4 GP4 Expansion slots
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PB5/ANA5 GP5 Expansion slots
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PB6/ANA6/OPINP/CINN GP6 Expansion slots
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PB7/ANA7/OPINN GP7 Expansion slots
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--------------------------- ------ --------------------------------------------
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PC0/T1IN/T1OUT/DMA1REQ/CINN GP10 PS/2 / GPIO, Expansion slots
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PC1/T1OUT/DMA1ACK/COMPOUT GP11 PS/2 / GPIO, Expansion slots
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PC2/SS/CS4 ~EXP Expansion slots
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PC3/SCK/DMA2REQ SCK FT800Q, Serial memory (1), RF Transceiver (1),
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Expansion slots, SD0, 1, and 2
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PC4/MOSI/DMA2ACK MOSI FT800Q, Serial memory (1), RF Transceiver (1),
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Expansion slots, SD0, 1, and 2
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PC5/MISO/CS5 MISO FT800Q, Serial memory (1), RF Transceiver (1),
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Expansion slots, SD0, 1, and 2
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PC6/T2IN/T2OUT/PWMH0 ~CTS MAX3232D RS-232
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PC7/T2OUT/PWML0 ~RTS MAX3232D RS-232, Power section (?)
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--------------------------- ------ --------------------------------------------
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PD0/PWMH1/ADR20 A20 RAM, Expansion slots
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PD1/PWML1/ADR21 A21 RAM, Expansion slots
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PD2/PWMH2/ADR22 A22 RAM, Expansion slots
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PD3/DE1/ADR16 A16 RAM, Expansion slots
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PD4/RXD1/ADR18 A18 RAM, Expansion slots
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PD5/TXD1/ADR19 A19 RAM, Expansion slots
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PD6/CTS1/ADR17 A17 RAM, Expansion slots
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PD7/PWML2/ADR23 A23 Expansion slots
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--------------------------- ------ --------------------------------------------
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PE0/DATA0 D0 RAM, Expansion slots
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PE1/DATA1 D1 RAM, Expansion slots
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PE2/DATA2 D2 RAM, Expansion slots
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PE3/DATA3 D3 RAM, Expansion slots
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PE4/DATA4 D4 RAM, Expansion slots
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PE5/DATA5 D5 RAM, Expansion slots
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PE6/DATA6 D6 RAM, Expansion slots
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PE7/DATA7 D7 RAM, Expansion slots
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--------------------------- ------ --------------------------------------------
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PF0/ADR0 A0 Expansion slots
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PF1/ADR1 A1 RAM, Expansion slots
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PF2/ADR2 A2 RAM, Expansion slots
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PF3/ADR3 A3 RAM, Expansion slots
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PF4/ADR4 A4 RAM, Expansion slots
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PF5/ADR5 A5 RAM, Expansion slots
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PF6/ADR6 A6 RAM, Expansion slots
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PF7/ADR7 A7 RAM, Expansion slots
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--------------------------- ------ --------------------------------------------
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PG0/ADR0 A8 RAM, Expansion slots
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PG1/ADR0 A9 RAM, Expansion slots
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PG2/ADR0 A10 RAM, Expansion slots
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PG3/ADR0 A11 RAM, Expansion slots
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PG4/ADR0 A12 RAM, Expansion slots
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PG5/ADR0 A13 RAM, Expansion slots
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PG6/ADR0 A14 RAM, Expansion slots
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PG7/ADR0 A15 RAM, Expansion slots
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--------------------------- ------ --------------------------------------------
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PH0/ANA8/WR ~WR RAM, Expansion slots
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PH1/ANA9/RD ~RD RAM, Expansion slots
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PH2/ANA10/CS0 ~RF LED3, RF transceiver, X2 (1)
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PH3/ANA11/CINP/WAIT ~SXM LED4, Chip select for the serial memory, U4 (1)
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--------------------------- ------ --------------------------------------------
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PJ0/DATA8 ~SD1 LED5, Chip select for the SD card 1, X11.
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PJ1/DATA9 ~DT1 Card detect for SD card 1
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PJ2/DATA10 WP1 Write protect for SD card 1
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PJ3/DATA11 EVE EVE chip select
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PJ4/DATA12 ~SD2 LED6, Chip select for the SD card 2, X10.
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PJ5/DATA13 ~DT2 Card detect for SD card 2
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PJ6/DATA14 WP2 Write protect for SD card 2
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PJ7/DATA15 ~SD0 LED7, Chip select for the microSD 0, X12.
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--------------------------- ------ --------------------------------------------
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PK0/BHEN ~BHE RAM, Expansion slots
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PK1/BLEN ~BLE RAM, Expansion slots
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PK2/CS0 ~0000 Bottom RAM bank, Expansion slots
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PK3/CS1 ~8000 Top RAM bank, Expansion slots
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PK4/CS2 ~F000 Expansion slots
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PK5/CS3 ~FFC8 Expansion slots
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PK6/CS4 ~FFD0 Expansion slots
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PK7/CS5 ~FFD8 Expansion slots
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--------------------------- ------ --------------------------------------------
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Note 1: Not populated on my board
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ZDS-II Compiler Versions
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========================
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Version 5.0.1
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All testing has been performed with ZSD II verion 5.0.1 for the ZNEO.
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Other Versions
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If you use any version of ZDS-II other than 5.0.1 or if you install ZDS-II
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at any location other than the default location, you will have to modify
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two files: (1) configs/16z/*/setenv.sh and (2) configs/16z/*/Make.defs.
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Simply edit these two files, changing 5.0.1 to whatever.
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Patches
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=======
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A bug has been found in the ZDS-II toolchain version 5.0.1. a patch is
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available to work around the bug. A summary of the nature the bug and
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instructions for applying the patch follow.
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Parameters are passed different to variadic functions (i.e., functions
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that accept a varying number of parameters) than to regular functions. For
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most functions, parameters are passed in registers, beginning with R1. But
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for variadic functions, all parameters must be passed on the stack.
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The logic works correctly for global functions, local functions, and most
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function pointers. It does not work correctly for the case where a variadic
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function point is included within a structure. In that case, the caller
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inappropriately passes the parameters in registers; the receiver will
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attempt to recover the parameters from the stack and a failure then follows.
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This bug prevents the use of NSH with the ZNEO. However, a patch has been
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developed that works around the problem. That patch can be found at
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configs/16z/tools/zneo-zdsii-5_0_1-variadic-func-fix.patch. In that
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directory is also a bash script that will apply that patch for you.
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The patch would be applied when NuttX is configured as follows:
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cd tools
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./configure.sh 16z/nsh
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cd ..
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. ./setenv.sh
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dopath.sh $PWD
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make
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See the section "Selecting Configurations" below.
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Serial Console
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==============
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The 16z supports a single UART, UART0, that will be used to support the
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NuttX serial console.
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LEDs
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====
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The 16z board has 7 LEDs, five of which are controllable via software:
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----- ------ ------ ------------------------------------
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LED Color Signal Description
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----- ------ ------ ------------------------------------
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LED1 Red 3V3 Indicates the presence of +3.3V
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LED2 Red 5V Indicates the presence of +5V
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LED3 Blue ~RF Controlled via PH2. Notes: 1, 2
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LED4 Green ~SXM Controlled via PH3. Notes: 1, 3
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LED5 Green ~SD1 Controlled via PJ0. Notes: 1, 4
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LED6 Yellow ~SD2 Controlled via PJ4. Notes: 1, 5
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LED7 Yellow ~SD0 Controlled via PJ7. Notes: 1, 6
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----- ------ ------ ------------------------------------
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Note 1: Pulled high so a low output illuminates the LED.
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Note 2: PH2/~RF is also used by the RF transceiver, X2. That part is not
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populated on my board.
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Note 3: ~SXM is the chip select for the serial memory, U4. That part is
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not populated on my board.
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Note 4: ~SD1 is the chip select for the SD card 1, X11.
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Note 5: ~SD2 is the chip select for the SD card 2, X10.
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Note 6: ~SD0 is the chip select for the microSD 0, X12.
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In conclusion: None of the LEDs are available to indicate software status
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without potentially sacrificing board functionality. If the RF transceiver
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is not installed (CONFIG_16Z_RFTRANSCEIVER=n) and if LED support is
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requested (CONFIG_ARCH_LEDS), then LED3 will be used to indicate status: A
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solid color means that the board has boot successfully; flashing at a rate
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of approximately 2Hz indicates a software failure.
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RAM
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===
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The 16z has two IS66WVE4M16BLL 64Mb (4M x 16b) "Pseudo" SRAM parts on board.
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This provides a total of 16MiB of SRAM from program usage.
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Selecting Configurations
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========================
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Variations on the basic 16z configuration are maintained in subdirectories.
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To configure any specific configuration, do the following steps:
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cd <nuttx-top-directory>/tools
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./configure.sh 16z/<sub-directory>
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cd <nuttx-top-directory>
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make
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Where <sub-directory> is the specific board configuration that you wish to
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build. The following board-specific configurations are available. You may
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also need to apply a path to NuttX before making. Please refer the the
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section "Patches" above"
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Before entering the make command, make certain that the path to the ZNEO
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compiler is in you PATH variable. You make modify and use the setenv.sh
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script to set that PATH if you like. You can simply source setenv.sh
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before making like:
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...
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. ./setenv.sh
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make
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Configuration Sub-directories
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=============================
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source/ and include/
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--------------------
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These directories contain common logic for all 16z configurations.
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nsh
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---
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nsh:
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This configuration directory will built the NuttShell (NSH). See
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the NSH user manual in the documents directory (or online at nuttx.org).
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See also the README.txt file in the nsh sub-directory for information
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about using ZDS-II.
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NOTES:
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1. This configuration uses the mconf-based configuration tool. To
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change this configuration using that tool, you should:
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a. Build and install the kconfig-mconf tool. See nuttx/README.txt
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and misc/tools/
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b. Execute 'make menuconfig' in nuttx/ in order to start the
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reconfiguration process.
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2. By default, this configuration assumes that you are using the
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Cygwin environment on Windows. An option is to use the native
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CMD.exe window build as described in the top-level README.txt
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file. To set up that configuration:
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-CONFIG_WINDOWS_CYGWIN=y
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+CONFIG_WINDOWS_NATIVE=y
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And after configuring, make sure that CONFIG_APPS_DIR uses
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the back slash character. For example:
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CONFIG_APPS_DIR="..\apps"
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3. By default, this configuration assumes that you are using the
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Cygwin environment on Windows. An option is to use the native
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CMD.exe window build as described in the top-level README.txt
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file. To set up that configuration:
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-CONFIG_WINDOWS_CYGWIN=y
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+CONFIG_WINDOWS_NATIVE=y
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And after configuring, make sure that CONFIG_APPS_DIR uses
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the back slash character. For example:
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CONFIG_APPS_DIR="..\apps"
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NOTES:
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a. If you need to change the toolchain path used in Make.defs, you
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will need to use the short 8.3 filenames to avoid spaces. On my
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PC, C:\PROGRA~1\ is is C:\Program Files\ and C:\PROGRA~2\ is
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C:\Program Files (x86)\
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b. You can't use setenv.sh in the native Windows environment. Try
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scripts/setenv.bat instead.
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c. At present, the native Windows build fails at the final link stages.
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The failure is due to problems in arch/z16/src/nuttx.linkcmd that
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is autogenerated by arch/z16/src/Makefile. The basic problem
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is the spurious spaces and and carrirage returns are generated at
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the end of the lines after a line continuation (\ ^M). If these
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trailing bad characters are manually eliminated, then the build
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will succeed on the next try.
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STATUS:
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1. Note that you must apply the ZNEO patch if you are using ZDS-II 5.0.1.
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See the README.txt file in the parent directory for more information.
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2. This configuration does not run correctly. There is currently a
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problem with the SRAM accesses.
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Check out any README.txt files in these <sub-directory>s.
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