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add modbus RTU

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This commit is contained in:
Edward Emelianov
2024-09-24 18:13:23 +03:00
parent 22a205001a
commit 03772fce3a
9 changed files with 83 additions and 26 deletions
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4
F1:F103/FX3U/hardware.h
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@@ -41,6 +41,10 @@
#define LEDPORT GPIOD
#define LEDPIN (1<<10)
// RS-485 receive/transmit (PA14: 0-Rx, 1-Tx)
#define RS485_TX() pin_set(GPIOA, (1<<14))
#define RS485_RX() pin_clear(GPIOA, (1<<14))
extern volatile uint32_t Tms;
void gpio_setup(void);