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https://www.olimex.com/Products/PIC/Development/PIC32-EMZ64/ https://github.com/sergev/LiteBSD/wiki/Olimex%20EMZ64%20board Most interesting about this board - it is pretty cheap, it has CAN connector and small OLED display (SSD1306) 128x64 dots. Signed-off-by: Leonid Yegoshin <[email protected]>
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Leonid Yegoshin
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PLATFORM = pic32mz2048efg100 | ||
BOOT = boot.S | ||
rom = 0x1d010000 0x1D200000 | ||
ram = 0 0x78000 | ||
eret_page = 0x9ffff000 | ||
vzcode = 0x9FC00000 | ||
vzentry = 0x9FC00000 | ||
vzdata = 0x80078000 | ||
vzstacktop = 0x80080000 | ||
DEVCFG = boards/OlimexPic32EMZ64-DEVCFG.S | ||
DEVCFGADDR = 0x9FC0FFC0 | ||
BOARDINIT = boards/OlimexPic32EMZ64-init.S |
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.section .sdata | ||
.word 0xCEFFFFFF // DEVCFG3 | ||
.word 0xFFF9B12A // DEVCFG2 | ||
.word 0x5F74FE39 // DEVCFG1 | ||
.word 0xFFFFF7D3 // DEVCFG0 |
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.section .text.init, "ax" | ||
.type _board_init, @function | ||
.globl _board_init | ||
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_board_init: | ||
li $2, 7 << 8 | ||
sw $2, 0xbf860134 // LATBCLR | ||
sw $2, 0xbf860114 // TRISBCLR | ||
li $2, 1 << 9 // yellow LED2=RB9 | ||
la $3, 0xbf860138 | ||
sw $2, 0($3) // LATBSET | ||
// setup a console routing for 64pin SoC | ||
li $2, 3 | ||
sw $2, 0xBF801480 // U4RXR = RD0 | ||
li $2, 2 | ||
sw $2, 0xBF8015D0 // RPD4R = U4TX | ||
jr $31 | ||
nop | ||
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.type _board_init_end, @function | ||
.globl _board_init_end | ||
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_board_init_end: | ||
li $2, 7 << 8 | ||
sw $2, 0xbf860134 // LATBCLR | ||
li $2, 1 << 8 // green LED2=RB8 only | ||
la $3, 0xbf860138 | ||
sw $2, 0($3) // LATBSET | ||
jr $31 | ||
nop | ||
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.type _nmi_exception, @function | ||
.globl _nmi_exception | ||
_nmi_exception: | ||
// LED1-3 | ||
li $2, 7 << 8 | ||
sw $2, 0xbf860134 // LATBCLR | ||
sw $2, 0xbf860114 // TRISBCLR | ||
// Light RGB | ||
li $2, 7 << 8 | ||
sw $2, 0xbf860138 // LATBSET red+yellow+green | ||
1: b 1b | ||
nop | ||
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.type _bev_exception, @function | ||
.globl _bev_exception | ||
_bev_exception: | ||
// LED1-3 | ||
li $2, 7 << 8 | ||
sw $2, 0xbf860134 // LATBCLR | ||
sw $2, 0xbf860114 // TRISBCLR | ||
// Light RGB | ||
li $2, 1 << 10 | ||
sw $2, 0xbf860138 // LATBSET red only | ||
1: b 1b | ||
nop | ||
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.section .rodata | ||
// UART4 as a console | ||
.type console_uart, @object | ||
.globl console_uart | ||
console_uart: | ||
.word 0xbf822600 | ||
.type console_paddr, @object | ||
.globl console_paddr | ||
console_paddr: | ||
.word 0x1f822600 | ||
.type console_irq_rx, @object | ||
.globl console_irq_rx | ||
console_irq_rx: | ||
.short 171 | ||
.type console_irq_tx, @object | ||
.globl console_irq_tx | ||
console_irq_tx: | ||
.short 172 |
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.vm | ||
id = 1 | ||
irqpolling = 1 | ||
elf = pic32mz-Olimex/uart.elf | ||
.mmap | ||
code = 0x1fc08000 0x8000 rxds 0x1fc08000 | ||
ram = 0 0x10000 rw 0x1000 | ||
. | ||
device = ic | ||
device = console | ||
device = ports | ||
device = syscontroller | ||
device = oscillator | ||
. |
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P = mips-mti-linux-gnu- | ||
#P = /usr/local/mips-2014.11/bin/mips-sde-elf- | ||
CC = $(P)gcc -mips32r2 -EL -g -nostdlib | ||
OBJCOPY = $(P)objcopy | ||
OBJDUMP = $(P)objdump | ||
CFLAGS = -O -Wall -Werror -DPIC32MZ | ||
LDFLAGS = -T pic32mz.ld -e _start | ||
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PROG = uart | ||
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all: $(PROG).hex # $(PROG).srec | ||
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$(PROG).hex: $(PROG).c | ||
$(CC) $(CFLAGS) -c $< | ||
$(CC) $(LDFLAGS) $(PROG).o $(LIBS) -o $(PROG).elf | ||
# $(OBJCOPY) -O ihex --change-addresses -0x2BE0000 $(PROG).elf $(PROG).hex | ||
$(OBJDUMP) -mmips:isa32r2 -d -S $(PROG).elf > $(PROG).dis | ||
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$(PROG).srec: | ||
mips-mti-linux-gnu-objcopy -O srec uart.hex uart.srec | ||
clean: | ||
rm -f *.o *.lst *~ *.elf *.hex *.dis *.srec |
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Example of simple program for Microchip Explorer 16 board | ||
with PIC32MZ plug-in module. |
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