git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@270 35acf78f-673a-0410-8e92-d51de3d6d3f4

demos/ARMCM3-STM32F103-GCC/readme.txt

@@ -8,7 +8,9 @@ The demo will on an Olimex STM32-P103 board.
 
 ** The Demo **
 
-Not complete yet.
+The demo flashes the board LED using a thread, by pressing the button located
+on the board the test procedure is activated with output on the serial port
+COM2 (USART2).
 
 ** Build Procedure **
 

ports/ARMCM3-STM32F103/stm32_serial.c

@@ -174,25 +174,25 @@ void InitSerial(uint32_t prio1, uint32_t prio2, uint32_t prio3) {
 
 #ifdef USE_USART1
   chFDDInit(&COM1, ib1, sizeof ib1, NULL, ob1, sizeof ob1, OutNotify1);
-  GPIOA->CRH = (GPIOA->CRH & 0xFFFFF00F) | 0x000004B0;
   RCC->APB2ENR |= 0x00002000;
   SetUSARTI(USART1, 38400, 0, CR2_STOP1_BITS | CR2_LINEN, 0);
+  GPIOA->CRH = (GPIOA->CRH & 0xFFFFF00F) | 0x000004B0;
   NVICEnableVector(USART1_IRQChannel, prio1);
 #endif
 
 #ifdef USE_USART2
   chFDDInit(&COM2, ib2, sizeof ib2, NULL, ob2, sizeof ob2, OutNotify2);
-  GPIOA->CRL = (GPIOA->CRL & 0xFFFF00FF) | 0x00004B00;
   RCC->APB1ENR |= 0x00020000;
   SetUSARTI(USART2, 38400, 0, CR2_STOP1_BITS | CR2_LINEN, 0);
+  GPIOA->CRL = (GPIOA->CRL & 0xFFFF00FF) | 0x00004B00;
   NVICEnableVector(USART2_IRQChannel, prio2);
 #endif
 
 #ifdef USE_USART3
   chFDDInit(&COM3, ib3, sizeof ib3, NULL, ob3, sizeof ob3, OutNotify3);
-  GPIOB->CRH = (GPIOB->CRH & 0xFFFF00FF) | 0x00004B00;
   RCC->APB1ENR |= 0x00040000;
   SetUSARTI(USART3, 38400, 0, CR2_STOP1_BITS | CR2_LINEN, 0);
+  GPIOB->CRH = (GPIOB->CRH & 0xFFFF00FF) | 0x00004B00;
   NVICEnableVector(USART3_IRQChannel, prio3);
 #endif
 }

ports/ARMCM3/nvic.c

@@ -21,7 +21,8 @@
 #include <nvic.h>
 
 void NVICEnableVector(uint32_t n, uint32_t prio) {
+  int sh = (n & 3) << 3;
 
-  NVIC_IPR(n >> 2) = (NVIC_IPR(n >> 2) & ~(0xFF << (n & 3))) | (prio << (n & 3));
+  NVIC_IPR(n >> 2) = (NVIC_IPR(n >> 2) & ~(0xFF << sh)) | (prio << sh);
   NVIC_ISER(n >> 5) = 1 << (n & 0x1F);
 }

ports/ARMCM3/nvic.h

@@ -68,7 +68,7 @@ typedef struct {
   IOREG32       ICPR[8];
   IOREG32       unused4[24];
   IOREG32       IABR[8];
-  IOREG32       unused5[54];
+  IOREG32       unused5[56];
   IOREG32       IPR[60];
 } NVIC;
 

readme.txt

@@ -37,9 +37,8 @@ ARM7-LPC214x-G++       - Yet another LPC214X demo but this one is done using
                          ChibiOS/RT users.
 ARM7-AT91SAM7X-GCC     - Port for Atmel AT91SAM7X256. The demo program targets
                          the Olimex SAM7-EX256 board.
-ARMCM3-ST32F103-GCC    - ARM Cortex-M3 port, work in progress, not complete
+ARMCM3-ST32F103-GCC    - ARM Cortex-M3 port. The demo targets the Olimex
-                         yet. The demo will target the Olimex STM32-P103
+                         STM32-P103 board.
-                         board.
 AVR-AVRmega128-GCC     - Port on AVRmega128. A special thanks to Vladimir for
                          the work done on the AVR port. The demo program
                          targets the Olimex AVR-MT-128 mini terminal board.
@@ -64,12 +63,13 @@ Win32-MinGW            - ChibiOS/RT simulator and demo into a WIN32 process,
 *****************************************************************************
 
 *** 0.6.3 ***
+- NEW: ARM Cortex-M3 port completed. The demo program targets the STM32F103
+  chip from ST Microelectronics on an Olimex STM32-P103 board.
 - Fixed a minor error in ./ports/ARM7/vic.h, it should not affect anything.
 - Minor bug fix: in chThdCreate() a working area size equal to UserStackSize(0)
   was asserted as an error when in debug mode. It is now allowed.
 - Increased the stack size for the threads in the test suite to 128 bytes
   because THUMB/THUMB2 modes seem to use a lot more stack than ARM mode.
-- More work done on the ARM-CM3 port but it does not pass the test suite yet.
 
 *** 0.6.2 ***
 - NEW: Added C++ wrapper around the ChibiOS/RT core APIs, now it is possible