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bug fix for REG_ID_BAT

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The correct power-on sequence for obtaining the battery percentage is to first power on the PicoCalc with the battery inserted
Then connect the USB Type-C cable to read the battery percentage.
The battery percentage also can be retrieved via I2C communication within the UF2 program.

PicoCalc keyboard firmware updating required.
This commit is contained in:
cuu
2025-04-02 00:11:08 +08:00
parent 57aa179b2e
commit 65bf0c65a7
4 changed files with 62 additions and 17 deletions
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18
Code/picocalc_helloworld/main.c
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@@ -204,10 +204,14 @@ void pwm_interrupt_handler() {
}
int main() {
stdio_init_all();
char buf[64];
set_sys_clock_khz(133000, true);
stdio_init_all();
uart_init(uart0, 115200);
uart_set_format(uart0, 8, 1, UART_PARITY_NONE); // 8-N-1
uart_set_fifo_enabled(uart0, false);
init_i2c_kbd();
lcd_init();
@@ -225,7 +229,17 @@ int main() {
psram_spi_inst_t psram_spi = psram_spi_init_clkdiv(pio1, -1,1.0f,true);
psram_test(&psram_spi);
// if we need battery information
// ** we should power on the picocalc only with batteries
// ** then plug the type c cable
// otherwise we won't get working battery infos
sleep_ms(2000);
int bat_pcnt = read_battery();
sprintf(buf,"battery percent is %d\n",bat_pcnt>>8);
printf(buf);
lcd_print_string(buf);
while (1) {
int c = lcd_getc(0);