i need to use NTC with ch32v003

[mostafagoudahelal]

@maxint-rd
i used ch32v003A4M6 with TM1637 module that is good i need to add NTC thermistor to display the temperature but the flash memory is small
c:/users/mohamed/appdata/local/arduino15/packages/wch/tools/riscv-none-embed-gcc/8.2.0/bin/../lib/gcc/riscv-none-embed/8.2.0/../../../../riscv-none-embed/bin/ld.exe: C:\Users\mohamed\AppData\Local\Temp\arduino\sketches\EA721649227ACC8416C8E7244FD2D52B/AverageMeasurement.ino.elf section .text' will not fit in region FLASH'
c:/users/mohamed/appdata/local/arduino15/packages/wch/tools/riscv-none-embed-gcc/8.2.0/bin/../lib/gcc/riscv-none-embed/8.2.0/../../../../riscv-none-embed/bin/ld.exe: region `FLASH' overflowed by 3720 bytes
collect2.exe: error: ld returned 1 exit status

exit status 1

[maxint-rd]

If flash is too small you need to see where you can trim flash usage.
Nowadays I first develop on a larger MCU with similar footprint, such as CH32V006. When compiling for V003 I first make debug strings conditional. Also avoid using printf and other flash-gobling features. Disable all peripherals you don't use.

Then I always compile with optimization for size with LTO. Please review PR #215 for more info on this and for tips on how to analyze binary size. Also be aware that the latest release (1.0.4) is NOT the latest version.

What library do you use for the TM1637?

[mostafagoudahelal]

@maxint-rd
TM1637rt