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added option to disable status LED

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stnolting 2020-08-26 20:17:18 +02:00
parent 57dbd602e7
commit 92c4aa40d6
1 changed files with 13 additions and 8 deletions
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21
sw/bootloader/bootloader.c
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@ -64,6 +64,8 @@
#define BAUD_RATE (19200)
/** Time until the auto-boot sequence starts (in seconds) */
#define AUTOBOOT_TIMEOUT 8
/** Set to 0 to disable bootloader status LED */
#define STATUS_LED_EN (1)
/** Bootloader status LED at GPIO output port */
#define STATUS_LED (0)
/** SPI flash boot image base address */
@ -201,8 +203,10 @@ int main(void) {
neorv32_cpu_csr_write(CSR_MIE, 1 << CPU_MIE_MTIE); // activate MTIME IRQ source
neorv32_cpu_eint(); // enable global interrupts
// init GPIO
neorv32_gpio_port_set(1 << STATUS_LED); // activate status LED, clear all others
if (STATUS_LED_EN == 1) {
// activate status LED, clear all others
neorv32_gpio_port_set(1 << STATUS_LED);
}
// global variable to executable size; 0 means there is no exe available
exe_available = 0;
@ -362,8 +366,10 @@ void __attribute__((__interrupt__)) bootloader_trap_handler(void) {
while(1); // freeze
}
else {
// toggle status LED
neorv32_gpio_pin_toggle(STATUS_LED);
if (STATUS_LED_EN == 1) {
// toggle status LED
neorv32_gpio_pin_toggle(STATUS_LED);
}
// set time for next IRQ
neorv32_mtime_set_timecmp(neorv32_mtime_get_time() + (SYSINFO_CLK/4));
}
@ -497,9 +503,6 @@ void save_exe(void) {
spi_flash_write_word(addr, d);
addr += 4;
i++;
// if ((i & 0x000000FF) == 0) {
// neorv32_uart_putc('.');
// }
}
// write checksum (sum complement)
@ -549,7 +552,9 @@ void system_error(uint8_t err_code) {
neorv32_uart_putc('0' + ((char)err_code)); // FIXME err_code should/must be below 10
neorv32_cpu_dint(); // deactivate IRQs
neorv32_gpio_port_set(1 << STATUS_LED); // permanently light up status LED
if (STATUS_LED_EN == 1) {
neorv32_gpio_port_set(1 << STATUS_LED); // permanently light up status LED
}
asm volatile ("wfi"); // power-down
while(1); // freeze