Commit f48cf671 authored by Damien's avatar Damien
Browse files

Implement crude but working REPL for board.

parent cbb8868f
......@@ -184,32 +184,38 @@ static void board_info() {
}
char *readline(const char *prompt) {
printf("a\n");
led_state(PYB_LED_R1, 1);
printf("b\n");
vstr_t vstr;
vstr_init(&vstr);
usb_vcp_send_str(prompt);
for (;;) {
printf("c\n");
led_state(PYB_LED_R2, 1);
//extern int rx_buf_in;
//extern int rx_buf_out;
while (usb_vcp_rx_any() == 0) {
//printf("nope %x %x\n", rx_buf_in, rx_buf_out);
sys_tick_delay_ms(10);
}
char c = usb_vcp_rx_get();
led_state(PYB_LED_R2, 0);
usb_vcp_send_strn(&c, 1);
led_state(PYB_LED_G1, 1);
if (c == 4 && vstr_len(&vstr) == 0) {
return NULL;
} else if (c == '\r') {
usb_vcp_send_str("\r\n");
return vstr_str(&vstr);
} else if (c == 127) {
if (vstr_len(&vstr) > 0) {
vstr_cut_tail(&vstr, 1);
usb_vcp_send_str("\b \b");
}
} else if (32 <= c && c <= 126) {
vstr_add_char(&vstr, c);
usb_vcp_send_strn(&c, 1);
}
sys_tick_delay_ms(100);
led_state(PYB_LED_G1, 0);
}
return NULL;
}
extern char rx_buf[];
extern int rx_buf_out;
void do_repl() {
int i = 0;
for (;;) {
usb_vcp_send_str("Micro Python\r\n");
printf("%d %d %c\n", i++, usb_vcp_rx_any(), rx_buf[rx_buf_out]);
sys_tick_delay_ms(1000);
}
for (;;) {
char *line = readline(">>> ");
......@@ -282,6 +288,11 @@ int main() {
qstr_init();
rt_init();
// add some functions to the python namespace
rt_store_name(qstr_from_str_static("pyb_delay"), rt_make_function_1(pyb_delay));
rt_store_name(qstr_from_str_static("pyb_led"), rt_make_function_1(pyb_led));
rt_store_name(qstr_from_str_static("pyb_sw"), rt_make_function_0(pyb_sw));
// print a message
printf(" micro py board\n");
......@@ -478,11 +489,6 @@ int main() {
} else {
// execute it!
// add some functions to the python namespace
rt_store_name(qstr_from_str_static("pyb_delay"), rt_make_function_1(pyb_delay));
rt_store_name(qstr_from_str_static("pyb_led"), rt_make_function_1(pyb_led));
rt_store_name(qstr_from_str_static("pyb_sw"), rt_make_function_0(pyb_sw));
py_obj_t module_fun = rt_make_function_from_id(1);
// flash once
......
......@@ -209,12 +209,12 @@ int pfenv_printf(const pfenv_t *pfenv, const char *fmt, va_list args) {
}
void lcd_print_strn(const char *str, unsigned int len);
void usb_vcp_send(const char* str, int len);
void usb_vcp_send_strn(const char* str, int len);
void stdout_print_strn(void *data, const char *str, unsigned int len) {
// send stdout to LCD and USB CDC VCP
lcd_print_strn(str, len);
//usb_vcp_send(str, len);
usb_vcp_send_strn(str, len);
}
static const pfenv_t pfenv_stdout = {0, stdout_print_strn};
......
......@@ -26,15 +26,17 @@ void usb_init() {
}
void usb_vcp_receive(const char *buf, uint32_t len) {
for (int i = 0; i < len; i++) {
rx_buf[rx_buf_in++] = buf[i];
if (rx_buf_in >= sizeof(rx_buf)) {
rx_buf_in = 0;
}
if (rx_buf_in == rx_buf_out) {
rx_buf_out = rx_buf_in + 1;
if (rx_buf_out >= sizeof(rx_buf)) {
rx_buf_out = 0;
if (is_enabled) {
for (int i = 0; i < len; i++) {
rx_buf[rx_buf_in++] = buf[i];
if (rx_buf_in >= sizeof(rx_buf)) {
rx_buf_in = 0;
}
if (rx_buf_in == rx_buf_out) {
rx_buf_out = rx_buf_in + 1;
if (rx_buf_out >= sizeof(rx_buf)) {
rx_buf_out = 0;
}
}
}
}
......
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