diff options
Diffstat (limited to 'hexedit')
| -rw-r--r-- | hexedit/Makefile | 41 | ||||
| -rw-r--r-- | hexedit/main.s | 13 | ||||
| -rw-r--r-- | hexedit/pico_ram_only.ld | 14 | ||||
| -rw-r--r-- | hexedit/slowcat.c | 11 |
4 files changed, 25 insertions, 54 deletions
diff --git a/hexedit/Makefile b/hexedit/Makefile index a42b16a..d1cfa5b 100644 --- a/hexedit/Makefile +++ b/hexedit/Makefile @@ -1,5 +1,5 @@ PICO = /dev/disk/by-label/RPI-RP2 -PICO_CONSOLE = /dev/ttyUSB0 +DEVICE = /dev/ttyUSB0 .PHONY: build build: hexedit.oe @@ -7,44 +7,31 @@ build: hexedit.oe hexedit.oe: hexedit.bin od -An -v hexedit.bin | sed "s/^ //" | tr " " "\n" > hexedit.oe -hexedit.bin: hexedit.o - arm-none-eabi-ld -T pico_bin.ld -o hexedit.bin hexedit.o - arm-none-eabi-objcopy -O binary hexedit.bin +hexedit.bin: hexedit.elf + arm-none-eabi-objcopy -O binary hexedit.elf hexedit.bin -objects = hexedit.o main.o +hexedit.elf: pico_bin.ld hexedit.o + arm-none-eabi-ld -T pico_bin.ld -o hexedit.elf hexedit.o -$(objects): %.o: %.s - arm-none-eabi-as -o $@ $< - -hexedit.uf2: hexedit.elf - ../elf/elf2uf2 hexedit.elf hexedit.uf2 - -hexedit.elf: $(objects) - arm-none-eabi-ld -T pico_ram_only.ld -o hexedit.elf $(objects) ../setup/setup.so +hexedit.o: hexedit.s + arm-none-eabi-as -o hexedit.o hexedit.s .PHONY: clean clean: - rm -f hexedit.elf hexedit.uf2 hexedit.bin hexedit.oe *.o + rm -f hexedit.elf hexedit.bin hexedit.oe hexedit.o slowcat .PHONY: dump dump: hexedit.bin @od hexedit.bin .PHONY: serial -serial: $(PICO_CONSOLE) hexedit.oe - cat hexedit.oe | tr "\n" "\r" > PICO_CONSOLE - echo -n "G" > PICO_CONSOLE +serial: $(DEVICE) hexedit.oe slowcat + cat hexedit.oe | tr "\n" "\r" | ./slowcat | picocom -b 115200 -q $(DEVICE) + @echo + echo -n "G" | picocom -b 115200 -q $(DEVICE) + @echo -$(PICO_CONSOLE): +$(DEVICE): @echo Serial device not found @echo Connect USB cable from USB-UART bridge @false - -.PHONY: flash -flash: $(PICO) hexedit.uf2 - cat hexedit.uf2 > $(PICO) - -$(PICO): - @echo "RPI-RP2 bootloader drive not found" - @echo Connect the pico with USB cable while holding bootsel button - @false diff --git a/hexedit/main.s b/hexedit/main.s deleted file mode 100644 index 0b49339..0000000 --- a/hexedit/main.s +++ /dev/null @@ -1,13 +0,0 @@ -.syntax unified -.cpu cortex-m0plus -.thumb - -.type main, %function -.global main - -main: - bl start_xosc - bl setup_clocks - bl setup_gpio - bl setup_uart - b SETUP diff --git a/hexedit/pico_ram_only.ld b/hexedit/pico_ram_only.ld deleted file mode 100644 index 1185af5..0000000 --- a/hexedit/pico_ram_only.ld +++ /dev/null @@ -1,14 +0,0 @@ -ENTRY(main) - -MEMORY { - FLASH(rx) : ORIGIN = 0x10000000, LENGTH = 2M - SRAM(rwx) : ORIGIN = 0x20000000, LENGTH = 264K -} - -SECTIONS { - .text : { - main.o(.text); - *(.text); - . = ALIGN(4); - } > SRAM -} diff --git a/hexedit/slowcat.c b/hexedit/slowcat.c new file mode 100644 index 0000000..67725d4 --- /dev/null +++ b/hexedit/slowcat.c @@ -0,0 +1,11 @@ +#include <unistd.h> +#include <stdint.h> + +int main() { + uint8_t byte; + while (read(STDIN_FILENO, &byte, 1)) { + write(STDOUT_FILENO, &byte, 1); + usleep(10000); + } + return 0; +} |