docs: record CH390 hardware-bound conclusion

2026-04-01 04:30:27 +08:00
parent 1808f9916f
commit 81594c6520
6 changed files with 340 additions and 20 deletions
@@ -19,6 +19,7 @@ void ch390_spi_init(void);
 uint16_t ch390_get_int_pin(void);
 void ch390_delay_us(uint32_t time);
 void ch390_hardware_reset(void);
+uint8_t ch390_bitbang_read_reg(uint8_t reg);

 /**
 * @name ch390_read_reg