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--- projects:modbus [2023/08/17 12:08] – [TCP] darron
+++ projects:modbus [2024/11/09 02:20] (current) – [STM32U575] darron
@@ Line 13: / Line 13: @@
 </wrap>
-Here are two demos to read (peek) a value from STM32 devices
+Here are various demos read a values from STM32 devices using `mbpoll' in Linux.
-using `mbpoll' in Linux.
 ===RTU===
+==RS232==
+This demo uses the [[:boards:u575|Nucleo U575ZI]] Cortex-M33 development board. It
+depends on FreeRTOS for demo purposes.
 The current temperature of an LM75 I2C sensor is read
 in Q8.8 format.
-This demo uses the [[:boards:u575|Nucleo U575ZI]].
 Two TTYs are utilised. The ST-LINK tty is used for the modbus
@@ Line 27: / Line 30: @@
 development so can be ignored.
+Another demo for the [[boards:stm32f4|STM32 F4 Discovery]] performs modbus rtu over
+its USB OTG port using the TinyUSB stack.
+==RS485==
+This demo uses the [[:boards:h7a3ziq|Nucleo H7A3ZI-Q]] Cortex-M7 development board.
+It depends on FreeRTOS for demo purposes.
+The modbus I/O with this demo uses a MAX485 transceiver
+and demonstrates how to utilise it.
 ===TCP===
+This demo uses the [[:boards:g491|Nucleo G491RE]] Cortex-M4 development board and
+an [[:interfaces:enc28j60|ENC28J60]] ethernet MAC/PHY. It depends on
+[[tools:freertos|FreeRTOS]] with FreeRTOS-PLUS-TCP.
 VREFINT is read as an input to the STM32 internal ADC.
-This demo uses the [[:boards:g491|Nucleo G491RE]] and
+Another demo for the [[:boards:h563zi|Nucleo H563ZI]] utilises its built-in
-the [[:interfaces:enc28j60|ENC28J60]]. It depends on
+MAC/PHY.
-[[tools:freertos|FreeRTOS]] with FreeRTOS-PLUS-TCP.
 ===Install===
@@ Line 59: / Line 75: @@
 <code>
-make -f Makefile.u575zi program debug
+cd NUCLEO-U575ZI-Q
+make program debug
 </code>
 ==References==

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