Hi,
Using SDK 15.3.0 , example "ble_app_hrs_freertos", pca10040 with armgcc.
I want to increase MTU and GAP data length.
I started with MTU to 247, and when I try to connect, on log :
<debug> nrf_sdh_freertos: Creating a SoftDevice task. <info> app: HRS FreeRTOS example started. <debug> nrf_sdh_freertos: Enter softdevice_task. <info> app: Fast advertising. <error> hardfault: HARD FAULT at 0x0002C004 <error> hardfault: R0: 0x20008214 R1: 0x002A821C R2: 0x20008214 R3: 0x20008208 <error> hardfault: R12: 0x00000000 LR: 0x0002AAF1 PSR: 0x8100020E <error> hardfault: Cause: Data bus error (PC value stacked for the exception return points to the instruction that caused the fault). <error> hardfault: Bus Fault Address: 0x002A8228
The modifications I have done to the code are :
diff --git a/config/FreeRTOSConfig.h b/config/FreeRTOSConfig.h index ae2167d..6dee317 100644 --- a/config/FreeRTOSConfig.h +++ b/config/FreeRTOSConfig.h @@ -63,7 +63,7 @@ #define configTICK_RATE_HZ 1024 #define configMAX_PRIORITIES ( 3 ) #define configMINIMAL_STACK_SIZE ( 60 ) -#define configTOTAL_HEAP_SIZE ( 4096 ) +#define configTOTAL_HEAP_SIZE ( 8192 ) #define configMAX_TASK_NAME_LEN ( 4 ) #define configUSE_16_BIT_TICKS 0 #define configIDLE_SHOULD_YIELD 1 diff --git a/pca10040/s132/config/sdk_config.h b/pca10040/s132/config/sdk_config.h index 8edaaed..715d28d 100644 --- a/pca10040/s132/config/sdk_config.h +++ b/pca10040/s132/config/sdk_config.h @@ -39,6 +39,9 @@ */ +#ifndef DEBUG +#define DEBUG 1 +#endif #ifndef SDK_CONFIG_H #define SDK_CONFIG_H @@ -7432,7 +7435,7 @@ // <e> NRF_LOG_BACKEND_RTT_ENABLED - nrf_log_backend_rtt - Log RTT backend //========================================================== #ifndef NRF_LOG_BACKEND_RTT_ENABLED -#define NRF_LOG_BACKEND_RTT_ENABLED 0 +#define NRF_LOG_BACKEND_RTT_ENABLED 1 #endif // <o> NRF_LOG_BACKEND_RTT_TEMP_BUFFER_SIZE - Size of buffer for partially processed strings. // <i> Size of the buffer is a trade-off between RAM usage and processing. @@ -7465,7 +7468,7 @@ // <e> NRF_LOG_BACKEND_UART_ENABLED - nrf_log_backend_uart - Log UART backend //========================================================== #ifndef NRF_LOG_BACKEND_UART_ENABLED -#define NRF_LOG_BACKEND_UART_ENABLED 1 +#define NRF_LOG_BACKEND_UART_ENABLED 0 #endif // <o> NRF_LOG_BACKEND_UART_TX_PIN - UART TX pin #ifndef NRF_LOG_BACKEND_UART_TX_PIN @@ -7582,7 +7585,7 @@ // <4=> Debug #ifndef NRF_LOG_DEFAULT_LEVEL -#define NRF_LOG_DEFAULT_LEVEL 3 +#define NRF_LOG_DEFAULT_LEVEL 4 #endif // <q> NRF_LOG_DEFERRED - Enable deffered logger. @@ -7632,7 +7635,7 @@ // <e> NRF_LOG_USES_COLORS - If enabled then ANSI escape code for colors is prefixed to every string //========================================================== #ifndef NRF_LOG_USES_COLORS -#define NRF_LOG_USES_COLORS 0 +#define NRF_LOG_USES_COLORS 1 #endif // <o> NRF_LOG_COLOR_DEFAULT - ANSI escape code prefix. @@ -11069,12 +11072,12 @@ // <o> NRF_SDH_BLE_GATT_MAX_MTU_SIZE - Static maximum MTU size. #ifndef NRF_SDH_BLE_GATT_MAX_MTU_SIZE -#define NRF_SDH_BLE_GATT_MAX_MTU_SIZE 23 +#define NRF_SDH_BLE_GATT_MAX_MTU_SIZE 247 #endif // <o> NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE - Attribute Table size in bytes. The size must be a multiple of 4. #ifndef NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE -#define NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE 1408 +#define NRF_SDH_BLE_GATTS_ATTR_TAB_SIZE 2000 #endif // <o> NRF_SDH_BLE_VS_UUID_COUNT - The number of vendor-specific UUIDs.
I also modified "nrf_sdh_freertos.c" :
#define NRF_BLE_FREERTOS_SDH_TASK_STACK 256 to 512
(not sur it is useful ?)
I also have seen normal ble_app_hrs is with 247 MTU and 251 GAP data lenth, and it works !
Regards,
