STM32: increase i2c slave rx limit.

Use uint16_t variables for i2c slave_rx_buffer_size and slave_rx_count variables. This allows to receive more than 255 bytes in slave mode. The bytes are received one by one in slave mode so there are no hardware limitations forcing a 1 byte rx count limit.
ARMmbed · Jan 28, 2022 · 3c0c9c2 · 3c0c9c2
1 parent 4095c65
commit 3c0c9c2
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Showing 16 changed files with 32 additions and 32 deletions.
diff --git a/targets/TARGET_STM/TARGET_STM32F0/objects.h b/targets/TARGET_STM/TARGET_STM32F0/objects.h
@@ -100,8 +100,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32F1/objects.h b/targets/TARGET_STM/TARGET_STM32F1/objects.h
@@ -124,8 +124,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32F2/objects.h b/targets/TARGET_STM/TARGET_STM32F2/objects.h
@@ -129,8 +129,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32F3/objects.h b/targets/TARGET_STM/TARGET_STM32F3/objects.h
@@ -115,8 +115,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32F4/objects.h b/targets/TARGET_STM/TARGET_STM32F4/objects.h
@@ -113,8 +113,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32F7/objects.h b/targets/TARGET_STM/TARGET_STM32F7/objects.h
@@ -131,8 +131,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32G0/objects.h b/targets/TARGET_STM/TARGET_STM32G0/objects.h
@@ -114,8 +114,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32G4/objects.h b/targets/TARGET_STM/TARGET_STM32G4/objects.h
@@ -113,8 +113,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32H7/objects.h b/targets/TARGET_STM/TARGET_STM32H7/objects.h
@@ -120,8 +120,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32L0/objects.h b/targets/TARGET_STM/TARGET_STM32L0/objects.h
@@ -116,8 +116,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32L1/objects.h b/targets/TARGET_STM/TARGET_STM32L1/objects.h
@@ -111,8 +111,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32L4/objects.h b/targets/TARGET_STM/TARGET_STM32L4/objects.h
@@ -112,8 +112,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32L5/objects.h b/targets/TARGET_STM/TARGET_STM32L5/objects.h
@@ -120,8 +120,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32U5/objects.h b/targets/TARGET_STM/TARGET_STM32U5/objects.h
@@ -120,8 +120,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32WB/objects.h b/targets/TARGET_STM/TARGET_STM32WB/objects.h
@@ -103,8 +103,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;

diff --git a/targets/TARGET_STM/TARGET_STM32WL/objects.h b/targets/TARGET_STM/TARGET_STM32WL/objects.h
@@ -106,8 +106,8 @@ struct i2c_s {
     volatile uint8_t pending_slave_tx_master_rx;
     volatile uint8_t pending_slave_rx_maxter_tx;
     uint8_t *slave_rx_buffer;
-    volatile uint8_t slave_rx_buffer_size;
-    volatile uint8_t slave_rx_count;
+    volatile uint16_t slave_rx_buffer_size;
+    volatile uint16_t slave_rx_count;
 #endif
 #if DEVICE_I2C_ASYNCH
     uint32_t address;