Merge pull request #2285 from cesanta/stm32

Stm32

.github/workflows/test.yml

@@ -131,7 +131,7 @@ jobs:
     - if: ${{ env.GO == 1 }}
       run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
     - if: ${{ env.GO == 1 }}
-      run:  make -C examples/stm32/nucleo-f746zg-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+      run:  make -C examples/stm32/nucleo-f746zg-make-baremetal-builtin test VCON_API_KEY=${{secrets.VCON_API_KEY}}
     - if: ${{ env.GO == 1 }}
       run:  make -C examples/stm32/nucleo-f746zg-freertos test VCON_API_KEY=${{secrets.VCON_API_KEY}}
     - if: ${{ env.GO == 1 }}
@@ -153,7 +153,7 @@ jobs:
     - if: ${{ env.GO == 1 }}
       run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
     - if: ${{ env.GO == 1 }}
-      run:  make -C examples/stm32/nucleo-f429zi-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+      run:  make -C examples/stm32/nucleo-f429zi-make-baremetal-builtin test VCON_API_KEY=${{secrets.VCON_API_KEY}}
     - if: ${{ env.GO == 1 }}
       run:  make -C examples/stm32/nucleo-f429zi-freertos test VCON_API_KEY=${{secrets.VCON_API_KEY}}
     - run: echo GO=0 >> $GITHUB_ENV ; if ./test/match_changed_files.sh '^src|examples/stm32/nucleo-f4.*-cube-'; then echo GO=1 >> $GITHUB_ENV ; fi
@@ -173,7 +173,7 @@ jobs:
     - if: ${{ env.GO == 1 }}
       run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
     - if: ${{ env.GO == 1 }}
-      run:  make -C examples/stm32/nucleo-h743zi-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+      run:  make -C examples/stm32/nucleo-h743zi-make-baremetal-builtin test VCON_API_KEY=${{secrets.VCON_API_KEY}}
     - run: echo GO=0 >> $GITHUB_ENV ; if ./test/match_changed_files.sh '^src|examples/stm32/nucleo-h7.*-cube-'; then echo GO=1 >> $GITHUB_ENV ; fi
     - if: ${{ env.GO == 1 }}
       run: make -C test/cube test PROJECTS=../../examples/stm32/nucleo-h743zi-cube-baremetal VCON_API_KEY=${{secrets.VCON_API_KEY}} DEVICE=6
@@ -215,15 +215,15 @@ jobs:
           - path: esp32/device-dashboard
           - path: esp32/uart-bridge
           - path: esp8266/http-client-server
-          - path: stm32/nucleo-h743zi-baremetal
+          - path: stm32/nucleo-h743zi-make-baremetal-builtin
           - path: stm32/stm32-nucleo-f746z
           - path: stm32/stm32-nucleo-f746zg
           - path: stm32/stm32-nucleo-f429z
           - path: stm32/stm32-nucleo-h743z
-          - path: stm32/nucleo-f429zi-baremetal
+          - path: stm32/nucleo-f429zi-make-baremetal-builtin
           - path: stm32/nucleo-f429zi-freertos
           - path: stm32/nucleo-f429zi-rndis
-          - path: stm32/nucleo-f746zg-baremetal
+          - path: stm32/nucleo-f746zg-make-baremetal-builtin
           - path: stm32/nucleo-f746zg-freertos
           - path: stm32/nucleo-f746zg-freertos-tcp
           - path: stm32/nucleo-f746zg-rndis

examples/stm32/nucleo-f429zi-make-baremetal-builtin/README.md

@@ -0,0 +1,3 @@
+# Baremetal web device dashboard on NUCLEO-F429ZI
+
+See https://mongoose.ws/tutorials/stm32/all-make-baremetal-builtin/

examples/stm32/nucleo-f429zi-baremetal/hal.h → examples/stm32/nucleo-f429zi-make-baremetal-builtin/hal.h

@@ -1,6 +1,7 @@
 // Copyright (c) 2022 Cesanta Software Limited
 // All rights reserved
 // https://www.st.com/resource/en/reference_manual/dm00031020-stm32f405-415-stm32f407-417-stm32f427-437-and-stm32f429-439-advanced-arm-based-32-bit-mcus-stmicroelectronics.pdf
+// https://www.st.com/resource/en/datasheet/stm32f429zi.pdf
 
 #pragma once
 
@@ -11,12 +12,19 @@
 #include <stdio.h>
 #include <string.h>
 
+
 #define BIT(x) (1UL << (x))
 #define SETBITS(R, CLEARMASK, SETMASK) (R) = ((R) & ~(CLEARMASK)) | (SETMASK)
 #define PIN(bank, num) ((((bank) - 'A') << 8) | (num))
 #define PINNO(pin) (pin & 255)
 #define PINBANK(pin) (pin >> 8)
 
+#define LED1 PIN('B', 0)   // On-board LED pin (green)
+#define LED2 PIN('B', 7)   // On-board LED pin (blue)
+#define LED3 PIN('B', 14)  // On-board LED pin (red)
+
+#define LED LED2              // Use blue LED for blinking
+
 // 6.3.3: APB1 clock <= 45MHz; APB2 clock <= 90MHz
 // 3.5.1, Table 11: configure flash latency (WS) in accordance to clock freq
 // 33.4: The AHB clock must be at least 25 MHz when Ethernet is used
@@ -88,7 +96,6 @@ static inline void irq_exti_attach(uint16_t pin) {
 #endif
 
 static inline void uart_init(USART_TypeDef *uart, unsigned long baud) {
-  // https://www.st.com/resource/en/datasheet/stm32f429zi.pdf
   uint8_t af = 7;           // Alternate function
   uint16_t rx = 0, tx = 0;  // pins
   uint32_t freq = 0;        // Bus frequency. UART1 is on APB2, rest on APB1
@@ -130,6 +137,22 @@ static inline uint32_t rng_read(void) {
   return RNG->DR;
 }
 
+static inline void ethernet_init(void) {
+  // Initialise Ethernet. Enable MAC GPIO pins, see
+  // https://www.farnell.com/datasheets/2014265.pdf section 6.10
+  uint16_t pins[] = {PIN('A', 1),  PIN('A', 2),  PIN('A', 7),
+                     PIN('B', 13), PIN('C', 1),  PIN('C', 4),
+                     PIN('C', 5),  PIN('G', 11), PIN('G', 13)};
+  for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
+    gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
+              GPIO_PULL_NONE, 11);  // 11 is the Ethernet function
+  }
+  NVIC_EnableIRQ(ETH_IRQn);                // Setup Ethernet IRQ handler
+  SYSCFG->PMC |= SYSCFG_PMC_MII_RMII_SEL;  // Use RMII. Goes first!
+  RCC->AHB1ENR |=
+      RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
+}
+
 #define UUID ((uint8_t *) UID_BASE)  // Unique 96-bit chip ID. TRM 39.1
 
 // Helper macro for MAC generation

examples/stm32/nucleo-f746zg-baremetal/main.c → examples/stm32/nucleo-f429zi-make-baremetal-builtin/main.c

@@ -5,11 +5,6 @@
 #include "mongoose.h"
 #include "net.h"
 
-#define LED1 PIN('B', 0)   // On-board LED pin (green)
-#define LED2 PIN('B', 7)   // On-board LED pin (blue)
-#define LED3 PIN('B', 14)  // On-board LED pin (red)
-
-#define LED LED2              // Use blue LED for blinking
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 static volatile uint64_t s_ticks;  // Milliseconds since boot
@@ -37,22 +32,6 @@ static void timer_fn(void *arg) {
            ifp->ndrop, ifp->nerr));
 }
 
-static void ethernet_init(void) {
-  // Initialise Ethernet. Enable MAC GPIO pins, see
-  // https://www.farnell.com/datasheets/2014265.pdf section 6.10
-  uint16_t pins[] = {PIN('A', 1),  PIN('A', 2),  PIN('A', 7),
-                     PIN('B', 13), PIN('C', 1),  PIN('C', 4),
-                     PIN('C', 5),  PIN('G', 11), PIN('G', 13)};
-  for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
-    gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
-              GPIO_PULL_NONE, 11);  // 11 is the Ethernet function
-  }
-  NVIC_EnableIRQ(ETH_IRQn);                // Setup Ethernet IRQ handler
-  SYSCFG->PMC |= SYSCFG_PMC_MII_RMII_SEL;  // Use RMII. Goes first!
-  RCC->AHB1ENR |=
-      RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
-}
-
 int main(void) {
   gpio_output(LED);               // Setup green LED
   uart_init(UART_DEBUG, 115200);  // Initialise debug printf

examples/stm32/nucleo-f746zg-make-baremetal-builtin/README.md

@@ -0,0 +1,3 @@
+# Baremetal web device dashboard on NUCLEO-F746ZG
+
+See https://mongoose.ws/tutorials/stm32/all-make-baremetal-builtin/

examples/stm32/nucleo-f746zg-baremetal/hal.h → examples/stm32/nucleo-f746zg-make-baremetal-builtin/hal.h

@@ -1,6 +1,7 @@
 // Copyright (c) 2022 Cesanta Software Limited
 // All rights reserved
 // https://www.st.com/resource/en/reference_manual/dm00124865-stm32f75xxx-and-stm32f74xxx-advanced-arm-based-32-bit-mcus-stmicroelectronics.pdf
+// https://www.st.com/resource/en/datasheet/stm32f746zg.pdf
 
 #pragma once
 
@@ -17,6 +18,12 @@
 #define PINNO(pin) (pin & 255)
 #define PINBANK(pin) (pin >> 8)
 
+#define LED1 PIN('B', 0)   // On-board LED pin (green)
+#define LED2 PIN('B', 7)   // On-board LED pin (blue)
+#define LED3 PIN('B', 14)  // On-board LED pin (red)
+
+#define LED LED2              // Use blue LED for blinking
+
 /* System clock
 5.3.3: APB1 clock <= 54MHz; APB2 clock <= 108MHz
 3.3.2, Table 5: configure flash latency (WS) in accordance to clock freq
@@ -90,7 +97,6 @@ static inline void irq_exti_attach(uint16_t pin) {
 #endif
 
 static inline void uart_init(USART_TypeDef *uart, unsigned long baud) {
-  // https://www.st.com/resource/en/datasheet/stm32f746zg.pdf
   uint8_t af = 7;           // Alternate function
   uint16_t rx = 0, tx = 0;  // pins
   uint32_t freq = 0;        // Bus frequency. UART1 is on APB2, rest on APB1
@@ -132,6 +138,22 @@ static inline uint32_t rng_read(void) {
   return RNG->DR;
 }
 
+static inline void ethernet_init(void) {
+  // Initialise Ethernet. Enable MAC GPIO pins, see
+  // https://www.farnell.com/datasheets/2014265.pdf section 6.10
+  uint16_t pins[] = {PIN('A', 1),  PIN('A', 2),  PIN('A', 7),
+                     PIN('B', 13), PIN('C', 1),  PIN('C', 4),
+                     PIN('C', 5),  PIN('G', 11), PIN('G', 13)};
+  for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
+    gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
+              GPIO_PULL_NONE, 11);  // 11 is the Ethernet function
+  }
+  NVIC_EnableIRQ(ETH_IRQn);                // Setup Ethernet IRQ handler
+  SYSCFG->PMC |= SYSCFG_PMC_MII_RMII_SEL;  // Use RMII. Goes first!
+  RCC->AHB1ENR |=
+      RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
+}
+
 #define UUID ((uint8_t *) UID_BASE)  // Unique 96-bit chip ID. TRM 41.1
 
 // Helper macro for MAC generation

examples/stm32/nucleo-f429zi-baremetal/main.c → examples/stm32/nucleo-f746zg-make-baremetal-builtin/main.c

@@ -5,11 +5,6 @@
 #include "mongoose.h"
 #include "net.h"
 
-#define LED1 PIN('B', 0)   // On-board LED pin (green)
-#define LED2 PIN('B', 7)   // On-board LED pin (blue)
-#define LED3 PIN('B', 14)  // On-board LED pin (red)
-
-#define LED LED2              // Use blue LED for blinking
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 static volatile uint64_t s_ticks;  // Milliseconds since boot
@@ -37,22 +32,6 @@ static void timer_fn(void *arg) {
            ifp->ndrop, ifp->nerr));
 }
 
-static void ethernet_init(void) {
-  // Initialise Ethernet. Enable MAC GPIO pins, see
-  // https://www.farnell.com/datasheets/2014265.pdf section 6.10
-  uint16_t pins[] = {PIN('A', 1),  PIN('A', 2),  PIN('A', 7),
-                     PIN('B', 13), PIN('C', 1),  PIN('C', 4),
-                     PIN('C', 5),  PIN('G', 11), PIN('G', 13)};
-  for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
-    gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
-              GPIO_PULL_NONE, 11);  // 11 is the Ethernet function
-  }
-  NVIC_EnableIRQ(ETH_IRQn);                // Setup Ethernet IRQ handler
-  SYSCFG->PMC |= SYSCFG_PMC_MII_RMII_SEL;  // Use RMII. Goes first!
-  RCC->AHB1ENR |=
-      RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
-}
-
 int main(void) {
   gpio_output(LED);               // Setup green LED
   uart_init(UART_DEBUG, 115200);  // Initialise debug printf

examples/stm32/nucleo-h743zi-make-baremetal-builtin/README.md

@@ -0,0 +1,3 @@
+# Baremetal web device dashboard on NUCLEO-H743ZI
+
+See https://mongoose.ws/tutorials/stm32/all-make-baremetal-builtin/

examples/stm32/nucleo-h743zi-baremetal/hal.h → examples/stm32/nucleo-h743zi-make-baremetal-builtin/hal.h

@@ -20,6 +20,12 @@
 #define PINNO(pin) (pin & 255)
 #define PINBANK(pin) (pin >> 8)
 
+#define LED1 PIN('B', 0)   // On-board LED pin (green)
+#define LED2 PIN('E', 1)   // On-board LED pin (yellow)
+#define LED3 PIN('B', 14)  // On-board LED pin (red)
+
+#define LED LED2              // Use yellow LED for blinking
+
 // System clock (2.1, Figure 1; 8.5, Figure 45; 8.5.5, Figure 47; 8.5.6, Figure
 // 49) CPU_FREQUENCY <= 480 MHz; hclk = CPU_FREQUENCY / HPRE ; hclk <= 240 MHz;
 // APB clocks <= 120 MHz. D1 domain bus matrix (and so flash) runs at hclk
@@ -153,6 +159,21 @@ static inline char chiprev(void) {
   return '?';
 }
 
+static inline void ethernet_init(void) {
+  // Initialise Ethernet. Enable MAC GPIO pins, see
+  // https://www.st.com/resource/en/user_manual/um2407-stm32h7-nucleo144-boards-mb1364-stmicroelectronics.pdf
+  uint16_t pins[] = {PIN('A', 1),  PIN('A', 2),  PIN('A', 7),
+                     PIN('B', 13), PIN('C', 1),  PIN('C', 4),
+                     PIN('C', 5),  PIN('G', 11), PIN('G', 13)};
+  for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
+    gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
+              GPIO_PULL_NONE, 11);  // 11 is the Ethernet function
+  }
+  NVIC_EnableIRQ(ETH_IRQn);                     // Setup Ethernet IRQ handler
+  SETBITS(SYSCFG->PMCR, 7 << 21, 4 << 21);      // Use RMII (12.3.1)
+  RCC->AHB1ENR |= BIT(15) | BIT(16) | BIT(17);  // Enable Ethernet clocks
+}
+
 #define UUID ((uint8_t *) UID_BASE)  // Unique 96-bit chip ID. TRM 61.1
 
 // Helper macro for MAC generation

examples/stm32/nucleo-h743zi-baremetal/main.c → examples/stm32/nucleo-h743zi-make-baremetal-builtin/main.c

@@ -5,11 +5,6 @@
 #include "mongoose.h"
 #include "net.h"
 
-#define LED1 PIN('B', 0)   // On-board LED pin (green)
-#define LED2 PIN('E', 1)   // On-board LED pin (yellow)
-#define LED3 PIN('B', 14)  // On-board LED pin (red)
-
-#define LED LED2              // Use blue LED for blinking
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 static volatile uint64_t s_ticks;  // Milliseconds since boot
@@ -37,21 +32,6 @@ static void timer_fn(void *arg) {
            ifp->ndrop, ifp->nerr));
 }
 
-static void ethernet_init(void) {
-  // Initialise Ethernet. Enable MAC GPIO pins, see
-  // https://www.st.com/resource/en/user_manual/um2407-stm32h7-nucleo144-boards-mb1364-stmicroelectronics.pdf
-  uint16_t pins[] = {PIN('A', 1),  PIN('A', 2),  PIN('A', 7),
-                     PIN('B', 13), PIN('C', 1),  PIN('C', 4),
-                     PIN('C', 5),  PIN('G', 11), PIN('G', 13)};
-  for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
-    gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
-              GPIO_PULL_NONE, 11);  // 11 is the Ethernet function
-  }
-  NVIC_EnableIRQ(ETH_IRQn);                     // Setup Ethernet IRQ handler
-  SETBITS(SYSCFG->PMCR, 7 << 21, 4 << 21);      // Use RMII (12.3.1)
-  RCC->AHB1ENR |= BIT(15) | BIT(16) | BIT(17);  // Enable Ethernet clocks
-}
-
 int main(void) {
   gpio_output(LED);               // Setup green LED
   uart_init(UART_DEBUG, 115200);  // Initialise debug printf