nRf52: ble uart example not working with S132 ver. 2.0.0 alpha

Question

Hi, 
 the example ble_app_uart_s132 from the SDK 0.9.2 is not longer working with the new release of S132 ( s132_nrf52_2.0.0-7.alpha). I had to go back to s132_nrf52_1.0.0-3.alpha to get it working.
I am using Keil 5.17 and the lastest nrfGoStudio 1.21 as toolchain. 
 What is the migration path form s132_nrf52_1.0.0-3.alpha to s132_nrf52_2.0.0-7.alpha? 
 Yours Johannes

Ole Bauck · Accepted Answer

Hi Johannes, 
 There are a couple of things that needs to be changed in the example to make it work with the newest alpha release of the SoftDevice. 
 Update 05.01.2016 : There is now a migration document in the zip folder of SD v2.0.0-8 alpha. This document explains in more depth what changes need to be made. For examples on how to use the new SoftDevice, check the SDK 11 examples ble_stack_init() function. 
 Update 09.12.2015 : The new alpha SoftDevices allows for configurable RAM size. This is calculated by the SoftDevice. sd_ble_enable will return error if the RAM size is too little. The way to do this is to run the code once to see how much RAM the SoftDevice uses with the configuration and then set this in the project. You can also set the RAM size to a higher value than what is required, this will only waste RAM. There will be a document describing this more in depth. 
 
 
 The SoftDevice headers need to be updated. Copy the files in \s132_nrf52_2.0.0-7.alpha\s132_nrf52_2.0.0-7.alpha_API\include to 
RF52_SDK_0.9.2\components\softdevice\s132\headers (copy and replace all files and folders) 
 
 
 Change ble_stack_init() to include the RAM base in the SoftDevice enable function, like this or similar: 
 static void ble_stack_init(void)
 {
 uint32_t err_code;
 uint32_t app_ram_base;
 
 // Initialize SoftDevice.
 SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, NULL);

 // Enable BLE stack.
 ble_enable_params_t ble_enable_params;
 memset(&ble_enable_params, 0, sizeof(ble_enable_params));
 #if (defined(S130) || defined(S132))
 ble_enable_params.gatts_enable_params.attr_tab_size = BLE_GATTS_ATTR_TAB_SIZE_DEFAULT;
 #endif
 ble_enable_params.common_enable_params.vs_uuid_count = 5;
 ble_enable_params.gatts_enable_params.service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT;
 ble_enable_params.gap_enable_params.central_conn_count = 1;
 ble_enable_params.gap_enable_params.central_sec_count = 1;
 ble_enable_params.gap_enable_params.periph_conn_count = 1;
 app_ram_base = __LINKER_APP_RAM_BASE;
 err_code = sd_ble_enable(&ble_enable_params,app_ram_base);
 if(err_code == NRF_SUCCESS)
 {
 // Verify that __LINKER_APP_RAM_BASE matches the SD calculations 
 if(app_ram_base != __LINKER_APP_RAM_BASE)
 {
 uart_print("Warning: unused memory: 0x%x", __LINKER_APP_RAM_BASE - app_ram_base);
 }
 }
 else if(err_code == NRF_ERROR_DATA_SIZE)
 {
 // Not enough memory for the SoftDevice. place a breakpoint here or output app_ram_base
 uart_print("Fatal: Not enough memory for the selected configuration. Required: 0x%x", app_ram_base);
 ASSERT(0);
 }
 
 // Subscribe for BLE events.
 err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
 APP_ERROR_CHECK(err_code);
 }
 
 
 
 The reason for this is explained in the link Eric sent you. 
 
 
 The softdevice_assertion_handler(...) is changed in the new alpha release. Change it to something like this: 
 void softdevice_assertion_handler(uint32_t id, uint32_t pc, uint32_t info)
 {
 //error code
 }
 
 
 
 The APP_CODE_BASE is changed to 0x1B000. Change ROM start to 0x1B000 and ROM size to 0x65000 in Keil (Options for target->Target->IROM1) 
 
 
 Ole

nRf52: ble uart example not working with S132 ver. 2.0.0 alpha

Top Replies