Hi everyone,

I downloaded the project B85M_SINGLE_BLE_SDK.

This is my first time using Telink processors.

At the beginning I decided to prepare a program that would only set the state to GPIO PC4. I selected b85m_ble_sample and modified the main.c file. Now it looks like this:

_attribute_ram_code_ int main (void){

    cpu_wakeup_init();

    clock_init(SYS_CLK_24M_Crystal);

    irq_disable();

    // gpio_init(1);

    gpio_set_func(GPIO_PC4, AS_GPIO);

    gpio_set_output_en(GPIO_PC4, 1);

    gpio_set_input_en(GPIO_PC4, 0);

    gpio_write(GPIO_PC4, 1);

    while (1) {

        // main_loop ();

    }

}

After generating the .BIN file, I upload it to the Flash memory using the BDT tool. My settings:

B85, EVK, Settings Flash default

I open the previously generated .BIN file

I press the Download button:

[12:31:35]:

TC32 EVK : Swire OK

Flash Sector (4K) Erase at address 0

Flash Page Program at address 0

Flash Page Program at address 400

Flash Page Program at address 800

Flash Page Program at address c00

Flash Sector (4K) Erase at address 1000

Flash Page Program at address 1000

Flash Page Program at address 1400

Flash Page Program at address 1800

Flash Page Program at address 1c00

Flash Sector (4K) Erase at address 2000

Flash Page Program at address 2000

Flash Page Program at address 2400

Flash Page Program at address 2800

Flash Page Program at address 2c00

Flash Sector (4K) Erase at address 3000

Flash Page Program at address 3000

Flash Page Program at address 3400

Flash Page Program at address 3800

Flash Page Program at address 3c00

Flash Sector (4K) Erase at address 4000

Flash Page Program at address 4000

Flash Page Program at address 4400

Flash Page Program at address 4800

Flash Page Program at address 4c00

File Download to Flash at address 0x000000: 19508 bytes

Total Time: 1280ms


[12:31:41]:

reset mcu


After performing a reset, the state of the PC4 pin does not change. I still have 1.8V there.

explanation:

gpio_write(GPIO_PC4, 1); is only example. 

I also tried gpio_write(GPIO_PC4, 0); but with the same result

How should I prepare and upload the program correctly? Please help